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root/cebix/BasiliskII/src/Unix/configure.ac
Revision: 1.60
Committed: 2006-01-27T23:49:01Z (18 years, 9 months ago) by gbeauche
Branch: MAIN
Changes since 1.59: +2 -1 lines
Log Message:
fix logic

File Contents

# User Rev Content
1 gbeauche 1.1 dnl Process this file with autoconf to produce a configure script.
2     dnl Written in 2002 by Christian Bauer et al.
3    
4 cebix 1.16 AC_INIT([Basilisk II], 1.0, [Christian.Bauer@uni-mainz.de], BasiliskII)
5     AC_CONFIG_SRCDIR(main_unix.cpp)
6 gbeauche 1.1 AC_PREREQ(2.52)
7     AC_CONFIG_HEADER(config.h)
8    
9 gbeauche 1.19 dnl Aliases for PACKAGE and VERSION macros.
10 gbeauche 1.22 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE_NAME", [Define this program name.])
11     AC_DEFINE_UNQUOTED(VERSION, "$PACKAGE_VERSION", [Define this program version.])
12 gbeauche 1.19
13 gbeauche 1.21 dnl Some systems do not put corefiles in the currect directory, avoid saving
14     dnl cores for the configure tests since some are intended to dump core.
15     ulimit -c 0
16    
17 gbeauche 1.5 dnl Video options.
18 gbeauche 1.1 AC_ARG_ENABLE(xf86-dga, [ --enable-xf86-dga use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
19     AC_ARG_ENABLE(xf86-vidmode, [ --enable-xf86-vidmode use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
20     AC_ARG_ENABLE(fbdev-dga, [ --enable-fbdev-dga use direct frame buffer access via /dev/fb [default=yes]], [WANT_FBDEV_DGA=$enableval], [WANT_FBDEV_DGA=yes])
21     AC_ARG_ENABLE(vosf, [ --enable-vosf enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
22    
23 gbeauche 1.26 dnl SDL options.
24 gbeauche 1.41 AC_ARG_ENABLE(sdl-static, [ --enable-sdl-static use SDL static libraries for linking [default=no]], [WANT_SDL_STATIC=$enableval], [WANT_SDL_STATIC=no])
25 gbeauche 1.26 AC_ARG_ENABLE(sdl-video, [ --enable-sdl-video use SDL for video graphics [default=no]], [WANT_SDL_VIDEO=$enableval], [WANT_SDL_VIDEO=no])
26 gbeauche 1.31 AC_ARG_ENABLE(sdl-audio, [ --enable-sdl-audio use SDL for audio [default=no]], [WANT_SDL_AUDIO=$enableval], [WANT_SDL_AUDIO=no])
27 gbeauche 1.26
28 gbeauche 1.5 dnl JIT compiler options.
29     AC_ARG_ENABLE(jit-compiler, [ --enable-jit-compiler enable JIT compiler [default=no]], [WANT_JIT=$enableval], [WANT_JIT=no])
30     AC_ARG_ENABLE(jit-debug, [ --enable-jit-debug activate native code disassemblers [default=no]], [WANT_JIT_DEBUG=$enableval], [WANT_JIT_DEBUG=no])
31    
32 gbeauche 1.1 dnl FPU emulation core.
33     AC_ARG_ENABLE(fpe,
34     [ --enable-fpe=FPE specify which fpu emulator to use [default=auto]],
35     [ case "$enableval" in
36     dnl default is always ieee, if architecture has this fp format
37     auto) FPE_CORE_TEST_ORDER="ieee uae";;
38     ieee) FPE_CORE_TEST_ORDER="ieee";;
39     uae) FPE_CORE_TEST_ORDER="uae";;
40     x86) FPE_CORE_TEST_ORDER="x86";;
41     *) AC_MSG_ERROR([--enable-fpe takes only one of the following values: auto, x86, ieee, uae]);;
42     esac
43     ],
44     [ FPE_CORE_TEST_ORDER="ieee uae"
45     ])
46    
47     dnl Addressing modes.
48     AC_ARG_ENABLE(addressing,
49     [ --enable-addressing=AM specify the addressing mode to use [default=fastest]],
50     [ case "$enableval" in
51     real) ADDRESSING_TEST_ORDER="real";;
52     direct) ADDRESSING_TEST_ORDER="direct";;
53     banks) ADDRESSING_TEST_ORDER="banks";;
54     fastest)ADDRESSING_TEST_ORDER="direct banks";;
55     *) AC_MSG_ERROR([--enable-addressing takes only one of the following values: fastest, real, direct, banks]);;
56     esac
57     ],
58     [ ADDRESSING_TEST_ORDER="direct banks"
59     ])
60    
61     dnl External packages.
62     AC_ARG_WITH(esd, [ --with-esd support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
63 gbeauche 1.49 AC_ARG_WITH(gtk, [ --with-gtk use GTK user interface [default=yes]],
64     [case "$withval" in
65     gtk1) WANT_GTK="gtk";;
66     gtk|gtk2) WANT_GTK="$withval";;
67     yes) WANT_GTK="gtk2 gtk";;
68     *) WANT_GTK="no";;
69     esac],
70     [WANT_GTK="gtk2 gtk"])
71 gbeauche 1.1 AC_ARG_WITH(mon, [ --with-mon use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
72    
73     dnl Canonical system information.
74     AC_CANONICAL_HOST
75     AC_CANONICAL_TARGET
76    
77     dnl Target OS type (target is host if not cross-compiling).
78     case "$target_os" in
79     linux*) OS_TYPE=linux;;
80     netbsd*) OS_TYPE=netbsd;;
81     freebsd*) OS_TYPE=freebsd;;
82     solaris*) OS_TYPE=solaris;;
83     darwin*) OS_TYPE=darwin;;
84     *) OS_TYPE=`echo $target_os | sed -e 's/-/_/g' | sed -e 's/\./_/g'`;;
85     esac
86     DEFINES="$DEFINES -DOS_$OS_TYPE"
87    
88     dnl Target CPU type.
89     HAVE_I386=no
90     HAVE_M68K=no
91     HAVE_SPARC=no
92     HAVE_POWERPC=no
93 gbeauche 1.13 HAVE_X86_64=no
94 gbeauche 1.1 case "$target_cpu" in
95 gbeauche 1.12 i386* | i486* | i586* | i686* | i786* ) HAVE_I386=yes;;
96     m68k* ) HAVE_M68K=yes;;
97     sparc* ) HAVE_SPARC=yes;;
98     powerpc* ) HAVE_POWERPC=yes;;
99 gbeauche 1.13 x86_64* ) HAVE_X86_64=yes;;
100 gbeauche 1.1 esac
101    
102     dnl Checks for programs.
103     AC_PROG_CC
104     AC_PROG_CC_C_O
105     AC_PROG_CPP
106     AC_PROG_CXX
107     AC_PROG_MAKE_SET
108     AC_PROG_INSTALL
109 gbeauche 1.36 AC_PROG_EGREP
110 gbeauche 1.1
111     dnl We use mon if possible.
112     MONSRCS=
113     if [[ "x$WANT_MON" = "xyes" ]]; then
114     AC_MSG_CHECKING(for mon)
115     mon_srcdir=../../../mon/src
116     if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
117     AC_MSG_RESULT(yes)
118     AC_DEFINE(ENABLE_MON, 1, [Define if using "mon".])
119     MONSRCS="$mon_srcdir/mon.cpp $mon_srcdir/mon_6502.cpp $mon_srcdir/mon_z80.cpp $mon_srcdir/mon_cmd.cpp $mon_srcdir/mon_disass.cpp $mon_srcdir/mon_ppc.cpp $mon_srcdir/mon_lowmem.cpp $mon_srcdir/disass/floatformat.c $mon_srcdir/disass/i386-dis.c $mon_srcdir/disass/m68k-dis.c $mon_srcdir/disass/m68k-opc.c"
120     CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
121     AC_CHECK_LIB(ncurses, tgetent, ,
122     AC_CHECK_LIB(termcap, tgetent, ,
123     AC_CHECK_LIB(termlib, tgetent, ,
124     AC_CHECK_LIB(terminfo, tgetent, ,
125     AC_CHECK_LIB(Hcurses, tgetent, ,
126     AC_CHECK_LIB(curses, tgetent))))))
127     AC_CHECK_LIB(readline, readline)
128     else
129     AC_MSG_RESULT(no)
130     AC_MSG_WARN([Could not find mon, ignoring --with-mon.])
131     WANT_MON=no
132     fi
133     fi
134    
135     dnl Checks for libraries.
136     AC_CHECK_LIB(posix4, sem_init)
137     AC_CHECK_LIB(rt, timer_create)
138 gbeauche 1.34 AC_CHECK_LIB(rt, shm_open)
139 gbeauche 1.56 AC_CHECK_LIB(m, cos)
140 gbeauche 1.1
141 gbeauche 1.26 dnl Do we need SDL?
142     WANT_SDL=no
143     if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
144     WANT_SDL=yes
145     WANT_XF86_DGA=no
146     WANT_XF86_VIDMODE=no
147     WANT_FBDEV_DGA=no
148 gbeauche 1.31 SDL_SUPPORT="$SDL_SUPPORT video"
149     fi
150     if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; then
151     WANT_SDL=yes
152     SDL_SUPPORT="$SDL_SUPPORT audio"
153 gbeauche 1.26 fi
154     if [[ "x$WANT_SDL" = "xyes" ]]; then
155     AC_PATH_PROG(sdl_config, "sdl-config")
156     if [[ -n "$sdl_config" ]]; then
157 gbeauche 1.36 case $target_os in
158     # Special treatment for Cygwin so that we can still use the POSIX layer
159     *cygwin*)
160     sdl_cflags="-I`$sdl_config --prefix`/include/SDL"
161     sdl_libs="-L`$sdl_config --exec-prefix`/lib -lSDL"
162     ;;
163     *)
164     sdl_cflags=`$sdl_config --cflags`
165 gbeauche 1.41 if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
166     sdl_libs=`$sdl_config --static-libs`
167     else
168     sdl_libs=`$sdl_config --libs`
169     fi
170 gbeauche 1.36 ;;
171     esac
172 gbeauche 1.26 CFLAGS="$CFLAGS $sdl_cflags"
173     CXXFLAGS="$CXXFLAGS $sdl_cflags"
174     LIBS="$LIBS $sdl_libs"
175     else
176     WANT_SDL=no
177     fi
178 gbeauche 1.31 SDL_SUPPORT=`echo "$SDL_SUPPORT" | sed -e "s/^ //"`
179     else
180     SDL_SUPPORT="none"
181 gbeauche 1.26 fi
182    
183     dnl We need X11, if not using SDL.
184     if [[ "x$WANT_SDL" = "xno" ]]; then
185     AC_PATH_XTRA
186     if [[ "x$no_x" = "xyes" ]]; then
187     AC_MSG_ERROR([You need X11 to run Basilisk II.])
188     fi
189     CFLAGS="$CFLAGS $X_CFLAGS"
190     CXXFLAGS="$CXXFLAGS $X_CFLAGS"
191     LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS"
192     fi
193 gbeauche 1.1
194     dnl We want pthreads. Try libpthread first, then libc_r (FreeBSD), then PTL.
195     HAVE_PTHREADS=yes
196     AC_CHECK_LIB(pthread, pthread_create, , [
197     AC_CHECK_LIB(c_r, pthread_create, , [
198     AC_CHECK_LIB(PTL, pthread_create, , [
199     HAVE_PTHREADS=no
200     ])
201     ])
202     ])
203     if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
204     AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
205     fi
206 gbeauche 1.50 AC_CHECK_FUNCS(pthread_cond_init)
207 gbeauche 1.46 AC_CHECK_FUNCS(pthread_cancel pthread_testcancel)
208 gbeauche 1.1 AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
209     AC_CHECK_FUNCS(pthread_mutexattr_settype)
210 gbeauche 1.3 AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
211 gbeauche 1.1
212     dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
213     SEMSRC=
214     AC_CHECK_FUNCS(sem_init, , [
215     if test "x$HAVE_PTHREADS" = "xyes"; then
216     SEMSRC=posix_sem.cpp
217     fi
218     ])
219    
220     dnl We use DGA (XFree86 or fbdev) if possible.
221     if [[ "x$WANT_XF86_DGA" = "xyes" ]]; then
222     AC_CHECK_LIB(Xxf86dga, XF86DGAQueryExtension, [
223     AC_DEFINE(ENABLE_XF86_DGA, 1, [Define if using XFree86 DGA extension.])
224     LIBS="$LIBS -lXxf86dga"
225     if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
226     AC_MSG_WARN([Cannot have both --enable-xf86-dga and --enable-fbdev-dga, ignoring --enable-fbdev-dga.])
227     WANT_FBDEV_DGA=no
228     fi
229     ], [
230     AC_MSG_WARN([Could not find XFree86 DGA extension, ignoring --enable-xf86-dga.])
231     WANT_XF86_DGA=no
232     ])
233     fi
234     if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
235     AC_DEFINE(ENABLE_FBDEV_DGA, 1, [Define if using DGA with framebuffer device.])
236     fi
237    
238     dnl We use XFree86 VidMode if possible.
239     if [[ "x$WANT_XF86_VIDMODE" = "xyes" ]]; then
240     AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryExtension, [
241     AC_DEFINE(ENABLE_XF86_VIDMODE, 1, [Define if using XFree86 DGA extension.])
242     LIBS="$LIBS -lXxf86vm"
243     ], [
244     AC_MSG_WARN([Could not find XFree86 VidMode extension, ignoring --enable-xf86-vidmode.])
245     WANT_XF86_VIDMODE=no
246     ])
247     fi
248    
249     dnl We use GTK+ if possible.
250     UISRCS=../dummy/prefs_editor_dummy.cpp
251 gbeauche 1.49 case "x$WANT_GTK" in
252     xgtk2*)
253     AM_PATH_GTK_2_0(1.3.15, [
254     AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
255     CFLAGS="$CFLAGS $GTK_CFLAGS"
256     CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
257     LIBS="$LIBS $GTK_LIBS"
258     UISRCS=prefs_editor_gtk.cpp
259     WANT_GTK=gtk2
260     ], [
261     case "x${WANT_GTK}x" in
262     *gtkx)
263     AC_MSG_WARN([Could not find GTK+ 2.0, trying with GTK+ 1.2.])
264     WANT_GTK=gtk
265     ;;
266     *)
267     AC_MSG_WARN([Could not find GTK+, disabling user interface.])
268     WANT_GTK=no
269     ;;
270     esac
271     ])
272     ;;
273     esac
274     if [[ "x$WANT_GTK" = "xgtk" ]]; then
275 gbeauche 1.1 AM_PATH_GTK(1.2.0, [
276     AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
277     CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
278     LIBS="$LIBS $GTK_LIBS"
279     UISRCS=prefs_editor_gtk.cpp
280 gbeauche 1.18 dnl somehow, <gnome-i18n.h> would redefine gettext() to nothing if
281     dnl ENABLE_NLS is not set, thusly conflicting with C++ <string> which
282     dnl includes <libintl.h>
283     AM_GNU_GETTEXT
284 gbeauche 1.1 B2_PATH_GNOMEUI([
285     AC_DEFINE(HAVE_GNOMEUI, 1, [Define if libgnomeui is available.])
286     CXXFLAGS="$CXXFLAGS $GNOMEUI_CFLAGS"
287     LIBS="$LIBS $GNOMEUI_LIBS"
288     ], [])
289     ], [
290     AC_MSG_WARN([Could not find GTK+, disabling user interface.])
291     WANT_GTK=no
292     ])
293     fi
294    
295     dnl We use ESD if possible.
296     if [[ "x$WANT_ESD" = "xyes" ]]; then
297     AM_PATH_ESD(0.2.8, [
298     AC_DEFINE(ENABLE_ESD, 1, [Define is using ESD.])
299     CFLAGS="$CFLAGS $ESD_CFLAGS"
300     CXXFLAGS="$CXXFLAGS $ESD_CFLAGS"
301     LIBS="$LIBS $ESD_LIBS"
302     ], [
303     AC_MSG_WARN([Could not find ESD, disabling ESD support.])
304     WANT_ESD=no
305     ])
306     fi
307    
308     dnl We use 64-bit file size support if possible.
309     AC_SYS_LARGEFILE
310    
311     dnl Checks for header files.
312     AC_HEADER_STDC
313 gbeauche 1.52 AC_CHECK_HEADERS(stdlib.h stdint.h)
314     AC_CHECK_HEADERS(unistd.h fcntl.h sys/types.h sys/time.h sys/mman.h mach/mach.h)
315 gbeauche 1.20 AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
316 gbeauche 1.42 AC_CHECK_HEADERS(sys/socket.h sys/ioctl.h sys/filio.h sys/bitypes.h sys/wait.h)
317     AC_CHECK_HEADERS(sys/poll.h sys/select.h)
318 gbeauche 1.39 AC_CHECK_HEADERS(arpa/inet.h)
319 gbeauche 1.35 AC_CHECK_HEADERS(linux/if.h linux/if_tun.h net/if.h net/if_tun.h, [], [], [
320 gbeauche 1.42 #ifdef HAVE_SYS_TYPES_H
321     #include <sys/types.h>
322     #endif
323 gbeauche 1.35 #ifdef HAVE_SYS_SOCKET_H
324     #include <sys/socket.h>
325     #endif
326     ])
327 gbeauche 1.30 AC_CHECK_HEADERS(AvailabilityMacros.h)
328 gbeauche 1.48 AC_CHECK_HEADERS(IOKit/storage/IOBlockStorageDevice.h)
329 gbeauche 1.1
330     dnl Checks for typedefs, structures, and compiler characteristics.
331     AC_C_BIGENDIAN
332     AC_C_CONST
333     AC_C_INLINE
334     AC_CHECK_SIZEOF(short, 2)
335     AC_CHECK_SIZEOF(int, 4)
336     AC_CHECK_SIZEOF(long, 4)
337     AC_CHECK_SIZEOF(long long, 8)
338     AC_CHECK_SIZEOF(float, 4)
339     AC_CHECK_SIZEOF(double, 8)
340     AC_CHECK_SIZEOF(long double, 12)
341     AC_CHECK_SIZEOF(void *, 4)
342     AC_TYPE_OFF_T
343 gbeauche 1.24 AC_CHECK_TYPES(loff_t)
344     AC_CHECK_TYPES(caddr_t)
345 gbeauche 1.1 AC_TYPE_SIZE_T
346     AC_TYPE_SIGNAL
347     AC_HEADER_TIME
348     AC_STRUCT_TM
349    
350     dnl Check whether sys/socket.h defines type socklen_t.
351     dnl (extracted from ac-archive/Miscellaneous)
352     AC_CACHE_CHECK([for socklen_t],
353     ac_cv_type_socklen_t, [
354     AC_TRY_COMPILE([
355     #include <sys/types.h>
356     #include <sys/socket.h>
357     ], [socklen_t len = 42; return 0;],
358     ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
359     dnl When cross-compiling, do not assume anything.
360     ac_cv_type_socklen_t="guessing no"
361     )
362     ])
363     if [[ "x$ac_cv_type_socklen_t" != "xyes" ]]; then
364     AC_DEFINE(socklen_t, int, [Define to 'int' if <sys/types.h> doesn't define.])
365     fi
366    
367     dnl Checks for library functions.
368 gbeauche 1.39 AC_CHECK_FUNCS(strdup strerror cfmakeraw)
369 gbeauche 1.1 AC_CHECK_FUNCS(clock_gettime timer_create)
370     AC_CHECK_FUNCS(sigaction signal)
371     AC_CHECK_FUNCS(mmap mprotect munmap)
372     AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
373 gbeauche 1.42 AC_CHECK_FUNCS(poll inet_aton)
374 gbeauche 1.1
375     dnl Darwin seems to define mach_task_self() instead of task_self().
376     AC_CHECK_FUNCS(mach_task_self task_self)
377    
378     dnl Check for headers and functions related to pty support (sshpty.c)
379     dnl From openssh-3.2.2p1 configure.ac
380    
381     AC_CHECK_HEADERS(strings.h login.h sys/bsdtty.h sys/stat.h util.h pty.h)
382     AC_CHECK_FUNCS(_getpty vhangup strlcpy)
383    
384     case "$host" in
385     *-*-hpux10.26)
386     disable_ptmx_check=yes
387     ;;
388     *-*-linux*)
389     no_dev_ptmx=1
390     ;;
391     mips-sony-bsd|mips-sony-newsos4)
392     AC_DEFINE(HAVE_NEWS4, 1, [Define if you are on NEWS-OS (additions from openssh-3.2.2p1, for sshpty.c).])
393     ;;
394     *-*-sco3.2v4*)
395     no_dev_ptmx=1
396     ;;
397     *-*-sco3.2v5*)
398     no_dev_ptmx=1
399     ;;
400 gbeauche 1.36 *-*-cygwin*)
401     no_dev_ptmx=1
402     ;;
403 gbeauche 1.1 esac
404    
405     if test -z "$no_dev_ptmx" ; then
406     if test "x$disable_ptmx_check" != "xyes" ; then
407     AC_CHECK_FILE([/dev/ptmx],
408     [
409     AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX, 1, [Define if you have /dev/ptmx.])
410     have_dev_ptmx=1
411     ]
412     )
413     fi
414     fi
415     AC_CHECK_FILE([/dev/ptc],
416     [
417     AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC, 1, [Define if you have /dev/ptc.])
418     have_dev_ptc=1
419     ]
420     )
421    
422     dnl (end of code from openssh-3.2.2p1 configure.ac)
423    
424    
425 gbeauche 1.58 dnl Check for systems where POSIX-style non-blocking I/O (O_NONBLOCK)
426     dnl doesn't work or is unimplemented. On these systems (mostly older
427     dnl ones), use the old BSD-style FIONBIO approach instead. [tcl.m4]
428     AC_CACHE_CHECK([FIONBIO vs. O_NONBLOCK for non-blocking I/O],
429     ac_cv_nonblocking_io, [
430     case "$host" in
431     *-*-osf*)
432     ac_cv_nonblocking_io=FIONBIO
433     ;;
434     *-*-sunos4*)
435     ac_cv_nonblocking_io=FIONBIO
436     ;;
437     *-*-ultrix*)
438     ac_cv_nonblocking_io=FIONBIO
439     ;;
440     *)
441     ac_cv_nonblocking_io=O_NONBLOCK
442     ;;
443     esac
444     ])
445     if [[ "$ac_cv_nonblocking_io" = "FIONBIO" ]]; then
446     AC_DEFINE(USE_FIONBIO, 1, [Define if BSD-style non-blocking I/O is to be used])
447     fi
448    
449 gbeauche 1.59 dnl Check whether compiler supports byte bit-fields
450     AC_CACHE_CHECK([whether compiler supports byte bit-fields],
451     ac_cv_have_byte_bitfields, [
452     AC_LANG_SAVE
453     AC_LANG_CPLUSPLUS
454     AC_TRY_RUN([
455     struct A {
456     unsigned char b1:4;
457     unsigned char b2:4;
458     unsigned char c;
459     unsigned short s;
460     unsigned char a[4];
461     };
462    
463     int main(void) {
464     A a;
465     return ! (sizeof(A) == 8 && &a.c == ((unsigned char *)&a + 1));
466     }],
467     [ac_cv_have_byte_bitfields=yes],
468     [ac_cv_have_byte_bitfields=no],
469     dnl When cross-compiling, assume only GCC supports this
470     [if [[ "$GCC" = "yes" ]]; then
471     ac_cv_have_byte_bitfields="guessing yes"
472     else
473     ac_cv_have_byte_bitfields="guessing no"
474     fi]
475     )
476     AC_LANG_RESTORE
477     ])
478 gbeauche 1.58
479 gbeauche 1.30 dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES)
480 cebix 1.51 AC_DEFUN([AC_CHECK_FRAMEWORK], [
481 gbeauche 1.30 AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl
482     AC_CACHE_CHECK([whether compiler supports framework $1],
483     ac_Framework, [
484     saved_LIBS="$LIBS"
485     LIBS="$LIBS -framework $1"
486     AC_TRY_LINK(
487 gbeauche 1.57 [$2], [],
488 gbeauche 1.30 [AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"]
489     )
490     ])
491     AS_IF([test AS_VAR_GET(ac_Framework) = yes],
492     [AC_DEFINE(AS_TR_CPP(HAVE_FRAMEWORK_$1), 1, [Define if framework $1 is available.])]
493     )
494     AS_VAR_POPDEF([ac_Framework])dnl
495     ])
496    
497     dnl Check for some MacOS X frameworks
498     AC_CHECK_FRAMEWORK(Carbon, [#include <Carbon/Carbon.h>])
499     AC_CHECK_FRAMEWORK(IOKit, [#include <IOKit/IOKitLib.h>])
500 gbeauche 1.48 AC_CHECK_FRAMEWORK(CoreFoundation, [#include <CoreFoundation/CoreFoundation.h>])
501 gbeauche 1.30
502 gbeauche 1.1 dnl Select system-dependant source files.
503     SERIALSRC=serial_unix.cpp
504     ETHERSRC=../dummy/ether_dummy.cpp
505     SCSISRC=../dummy/scsi_dummy.cpp
506     AUDIOSRC=../dummy/audio_dummy.cpp
507 gbeauche 1.41 EXTFSSRC=extfs_unix.cpp
508 gbeauche 1.1 EXTRASYSSRCS=
509     CAN_NATIVE_M68K=no
510     case "$target_os" in
511     linux*)
512     ETHERSRC=ether_unix.cpp
513     AUDIOSRC=audio_oss_esd.cpp
514     SCSISRC=Linux/scsi_linux.cpp
515     ;;
516     freebsd*)
517     ETHERSRC=ether_unix.cpp
518     AUDIOSRC=audio_oss_esd.cpp
519     DEFINES="$DEFINES -DBSD_COMP"
520     CXXFLAGS="$CXXFLAGS -fpermissive"
521     dnl Check for the CAM library
522     AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
523     if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
524     AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
525     else
526     dnl Check for the sys kernel includes
527     AC_CHECK_HEADER(camlib.h)
528     if [[ "x$ac_cv_header_camlib_h" = "xno" ]]; then
529     dnl In this case I should fix this thing including a "patch"
530     dnl to access directly to the functions in the kernel :) --Orlando
531     AC_MSG_WARN([Cannot find includes for CAM library, disabling SCSI support.])
532     else
533     SCSISRC=FreeBSD/scsi_freebsd.cpp
534     LIBS="$LIBS -lcam"
535     DEFINES="$DEFINES -DCAM"
536     fi
537     fi
538     ;;
539     netbsd*)
540     CAN_NATIVE_M68K=yes
541 gbeauche 1.44 ETHERSRC=ether_unix.cpp
542 gbeauche 1.1 ;;
543     solaris*)
544     AUDIOSRC=Solaris/audio_solaris.cpp
545     DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
546     ;;
547     irix*)
548     AUDIOSRC=Irix/audio_irix.cpp
549     EXTRASYSSRCS=Irix/unaligned.c
550     LIBS="$LIBS -laudio"
551     WANT_ESD=no
552    
553 gbeauche 1.14 dnl Check if our compiler supports -IPA (MIPSPro)
554     HAVE_IPA=no
555 gbeauche 1.1 ocflags="$CFLAGS"
556 gbeauche 1.14 CFLAGS=`echo "$CFLAGS -IPA" | sed -e "s/-g//g"`
557     AC_MSG_CHECKING(if "-IPA" works)
558 gbeauche 1.1 dnl Do a test compile of an empty function
559 gbeauche 1.56 AC_TRY_COMPILE([#if defined __GNUC__
560     # error GCC does not support IPA yet
561     #endif],, [AC_MSG_RESULT(yes); HAVE_IPA=yes], AC_MSG_RESULT(no))
562 gbeauche 1.1 CFLAGS="$ocflags"
563 gbeauche 1.30 ;;
564     darwin*)
565 gbeauche 1.45 ETHERSRC=ether_unix.cpp
566 gbeauche 1.48 if [[ "x$ac_cv_framework_IOKit" = "xyes" -a "x$ac_cv_framework_CoreFoundation" = "xyes" ]]; then
567 gbeauche 1.30 EXTRASYSSRCS="../MacOSX/sys_darwin.cpp"
568     fi
569 gbeauche 1.41 if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
570     EXTFSSRC=../MacOSX/extfs_macosx.mm
571     fi
572 gbeauche 1.1 ;;
573 gbeauche 1.36 cygwin*)
574     SERIALSRC="../dummy/serial_dummy.cpp"
575 gbeauche 1.37 EXTRASYSSRCS="../Windows/BasiliskII.rc"
576 gbeauche 1.36 ;;
577 gbeauche 1.1 esac
578 gbeauche 1.43
579     dnl Is the slirp library supported?
580 gbeauche 1.59 case "$ac_cv_have_byte_bitfields" in
581     yes|"guessing yes")
582 gbeauche 1.60 CAN_SLIRP=yes
583 gbeauche 1.59 ETHERSRC=ether_unix.cpp
584     ;;
585     esac
586 gbeauche 1.60 if [[ -n "$CAN_SLIRP" ]]; then
587 gbeauche 1.43 AC_DEFINE(HAVE_SLIRP, 1, [Define if slirp library is supported])
588     SLIRP_SRCS="\
589     ../slirp/bootp.c ../slirp/ip_output.c ../slirp/tcp_input.c \
590     ../slirp/cksum.c ../slirp/mbuf.c ../slirp/tcp_output.c \
591     ../slirp/debug.c ../slirp/misc.c ../slirp/tcp_subr.c \
592     ../slirp/if.c ../slirp/sbuf.c ../slirp/tcp_timer.c \
593     ../slirp/ip_icmp.c ../slirp/slirp.c ../slirp/tftp.c \
594     ../slirp/ip_input.c ../slirp/socket.c ../slirp/udp.c"
595     fi
596     AC_SUBST(SLIRP_SRCS)
597    
598 gbeauche 1.26 dnl SDL overrides
599     if [[ "x$WANT_SDL" = "xyes" ]]; then
600     AC_DEFINE(USE_SDL, 1, [Define to enble SDL support])
601     fi
602     if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
603 gbeauche 1.31 AC_DEFINE(USE_SDL_VIDEO, 1, [Define to enable SDL video graphics support])
604 gbeauche 1.30 VIDEOSRCS="../SDL/video_sdl.cpp"
605 gbeauche 1.29 KEYCODES="../SDL/keycodes"
606 gbeauche 1.30 if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
607     EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
608     else
609 gbeauche 1.38 case "$target_os" in
610     cygwin*)
611     EXTRASYSSRCS="$EXTRASYSSRCS ../Windows/clip_windows.cpp"
612     ;;
613     *)
614     EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
615     ;;
616     esac
617 gbeauche 1.30 fi
618 gbeauche 1.26 else
619 gbeauche 1.30 VIDEOSRCS="video_x.cpp"
620 gbeauche 1.29 KEYCODES="keycodes"
621 gbeauche 1.30 EXTRASYSSRCS="$EXTRASYSSRCS clip_unix.cpp"
622 gbeauche 1.26 fi
623 gbeauche 1.31 if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; then
624     AC_DEFINE(USE_SDL_AUDIO, 1, [Define to enable SDL audio support])
625     AUDIOSRC="../SDL/audio_sdl.cpp"
626     fi
627 gbeauche 1.1
628     dnl Use 68k CPU natively?
629     WANT_NATIVE_M68K=no
630     if [[ "x$HAVE_M68K" = "xyes" -a "x$CAN_NATIVE_M68K" = "xyes" ]]; then
631     AC_DEFINE(ENABLE_NATIVE_M68K, 1, [Define if using native 68k mode.])
632     WANT_NATIVE_M68K=yes
633     fi
634    
635     if [[ "x$HAVE_PTHREADS" = "xno" ]]; then
636     dnl Serial, ethernet and audio support needs pthreads
637     AC_MSG_WARN([You don't have pthreads, disabling serial, ethernet and audio support.])
638     SERIALSRC=../dummy/serial_dummy.cpp
639     ETHERSRC=../dummy/ether_dummy.cpp
640     AUDIOSRC=../dummy/audio_dummy.cpp
641     fi
642 gbeauche 1.41 SYSSRCS="$VIDEOSRCS $EXTFSSRC $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
643 gbeauche 1.1
644     dnl Define a macro that translates a yesno-variable into a C macro definition
645     dnl to be put into the config.h file
646     dnl $1 -- the macro to define
647     dnl $2 -- the value to translate
648     dnl $3 -- template name
649 cebix 1.51 AC_DEFUN([AC_TRANSLATE_DEFINE], [
650 gbeauche 1.1 if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
651     AC_DEFINE($1, 1, $3)
652     fi
653     ])
654    
655 gbeauche 1.25 dnl Check that the host supports TUN/TAP devices
656     AC_CACHE_CHECK([whether TUN/TAP is supported],
657     ac_cv_tun_tap_support, [
658     AC_TRY_COMPILE([
659     #if defined(HAVE_LINUX_IF_H) && defined(HAVE_LINUX_IF_TUN_H)
660     #include <linux/if.h>
661     #include <linux/if_tun.h>
662     #endif
663     #if defined(HAVE_NET_IF_H) && defined(HAVE_NET_IF_TUN_H)
664     #include <net/if.h>
665     #include <net/if_tun.h>
666     #endif
667     ], [
668     struct ifreq ifr;
669     memset(&ifr, 0, sizeof(ifr));
670     ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
671     ],
672     ac_cv_tun_tap_support=yes, ac_cv_tun_tap_support=no
673     )
674     ])
675     AC_TRANSLATE_DEFINE(ENABLE_TUNTAP, "$ac_cv_tun_tap_support",
676     [Define if your system supports TUN/TAP devices.])
677    
678 gbeauche 1.1 dnl Various checks if the system supports vm_allocate() and the like functions.
679     have_mach_vm=no
680     if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
681     "x$ac_cv_func_vm_protect" = "xyes" ]]; then
682     have_mach_vm=yes
683     fi
684     AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm",
685     [Define if your system has a working vm_allocate()-based memory allocator.])
686    
687     dnl Check that vm_allocate(), vm_protect() work
688     if [[ "x$have_mach_vm" = "xyes" ]]; then
689    
690     AC_CACHE_CHECK([whether vm_protect works],
691     ac_cv_vm_protect_works, [
692     AC_LANG_SAVE
693     AC_LANG_CPLUSPLUS
694     ac_cv_vm_protect_works=yes
695     dnl First the tests that should segfault
696     for test_def in NONE_READ NONE_WRITE READ_WRITE; do
697     AC_TRY_RUN([
698     #define CONFIGURE_TEST_VM_MAP
699     #define TEST_VM_PROT_$test_def
700     #include "vm_alloc.cpp"
701     ], ac_cv_vm_protect_works=no, rm -f core,
702     dnl When cross-compiling, do not assume anything
703     ac_cv_vm_protect_works="guessing no"
704     )
705     done
706     AC_TRY_RUN([
707     #define CONFIGURE_TEST_VM_MAP
708     #define TEST_VM_PROT_RDWR_WRITE
709     #include "vm_alloc.cpp"
710     ], , ac_cv_vm_protect_works=no,
711     dnl When cross-compiling, do not assume anything
712     ac_cv_vm_protect_works="guessing no"
713     )
714     AC_LANG_RESTORE
715     ]
716     )
717    
718     dnl Remove support for vm_allocate() if vm_protect() does not work
719     if [[ "x$have_mach_vm" = "xyes" ]]; then
720     case $ac_cv_vm_protect_works in
721     *yes) have_mach_vm=yes;;
722     *no) have_mach_vm=no;;
723     esac
724     fi
725     AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm",
726     [Define if your system has a working vm_allocate()-based memory allocator.])
727    
728     fi dnl HAVE_MACH_VM
729    
730     dnl Various checks if the system supports mmap() and the like functions.
731     dnl ... and Mach memory allocators are not supported
732     have_mmap_vm=no
733     if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
734     "x$ac_cv_func_mprotect" = "xyes" ]]; then
735     if [[ "x$have_mach_vm" = "xno" ]]; then
736     have_mmap_vm=yes
737     fi
738     fi
739     AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm",
740     [Define if your system has a working mmap()-based memory allocator.])
741    
742     dnl Check that mmap() and associated functions work.
743     if [[ "x$have_mmap_vm" = "xyes" ]]; then
744    
745     dnl Check if we have a working anonymous mmap()
746     AC_CACHE_CHECK([whether mmap supports MAP_ANON],
747     ac_cv_mmap_anon, [
748     AC_LANG_SAVE
749     AC_LANG_CPLUSPLUS
750     AC_TRY_RUN([
751     #define HAVE_MMAP_ANON
752     #define CONFIGURE_TEST_VM_MAP
753     #define TEST_VM_MMAP_ANON
754     #include "vm_alloc.cpp"
755     ], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
756     dnl When cross-compiling, do not assume anything.
757     ac_cv_mmap_anon="guessing no"
758     )
759     AC_LANG_RESTORE
760     ]
761     )
762     AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon",
763     [Define if <sys/mman.h> defines MAP_ANON and mmap()'ing with MAP_ANON works.])
764    
765     AC_CACHE_CHECK([whether mmap supports MAP_ANONYMOUS],
766     ac_cv_mmap_anonymous, [
767     AC_LANG_SAVE
768     AC_LANG_CPLUSPLUS
769     AC_TRY_RUN([
770     #define HAVE_MMAP_ANONYMOUS
771     #define CONFIGURE_TEST_VM_MAP
772     #define TEST_VM_MMAP_ANON
773     #include "vm_alloc.cpp"
774     ], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
775     dnl When cross-compiling, do not assume anything.
776     ac_cv_mmap_anonymous="guessing no"
777     )
778     AC_LANG_RESTORE
779     ]
780     )
781     AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous",
782     [Define if <sys/mman.h> defines MAP_ANONYMOUS and mmap()'ing with MAP_ANONYMOUS works.])
783    
784     AC_CACHE_CHECK([whether mprotect works],
785     ac_cv_mprotect_works, [
786     AC_LANG_SAVE
787     AC_LANG_CPLUSPLUS
788     ac_cv_mprotect_works=yes
789     dnl First the tests that should segfault
790     for test_def in NONE_READ NONE_WRITE READ_WRITE; do
791     AC_TRY_RUN([
792     #define CONFIGURE_TEST_VM_MAP
793     #define TEST_VM_PROT_$test_def
794     #include "vm_alloc.cpp"
795     ], ac_cv_mprotect_works=no, rm -f core,
796     dnl When cross-compiling, do not assume anything
797     ac_cv_mprotect_works="guessing no"
798     )
799     done
800     AC_TRY_RUN([
801     #define CONFIGURE_TEST_VM_MAP
802     #define TEST_VM_PROT_RDWR_WRITE
803     #include "vm_alloc.cpp"
804     ], , ac_cv_mprotect_works=no,
805     dnl When cross-compiling, do not assume anything
806     ac_cv_mprotect_works="guessing no"
807     )
808     AC_LANG_RESTORE
809     ]
810     )
811    
812     dnl Remove support for mmap() if mprotect() does not work
813     if [[ "x$have_mmap_vm" = "xyes" ]]; then
814     case $ac_cv_mprotect_works in
815     *yes) have_mmap_vm=yes;;
816     *no) have_mmap_vm=no;;
817     esac
818     fi
819     AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm,
820     [Define if your system has a working mmap()-based memory allocator.])
821    
822     fi dnl HAVE_MMAP_VM
823    
824 gbeauche 1.23 dnl Check if we can modify the __PAGEZERO segment for use as Low Memory
825     AC_CACHE_CHECK([whether __PAGEZERO can be Low Memory area 0x0000-0x2000],
826     ac_cv_pagezero_hack, [
827     ac_cv_pagezero_hack=no
828     if AC_TRY_COMMAND([Darwin/testlmem.sh 0x2000]); then
829     ac_cv_pagezero_hack=yes
830     dnl might as well skip the test for mmap-able low memory
831     ac_cv_can_map_lm=no
832     fi
833     ])
834     AC_TRANSLATE_DEFINE(PAGEZERO_HACK, "$ac_cv_pagezero_hack",
835     [Define if the __PAGEZERO Mach-O Low Memory Globals hack works on this system.])
836    
837 gbeauche 1.1 dnl Check if we can mmap 0x2000 bytes from 0x0000
838     AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x2000],
839     ac_cv_can_map_lm, [
840     AC_LANG_SAVE
841     AC_LANG_CPLUSPLUS
842     AC_TRY_RUN([
843     #include "vm_alloc.cpp"
844     int main(void) { /* returns 0 if we could map the lowmem globals */
845 gbeauche 1.15 volatile char * lm = 0;
846 gbeauche 1.1 if (vm_init() < 0) exit(1);
847 gbeauche 1.15 if (vm_acquire_fixed(0, 0x2000) < 0) exit(1);
848 gbeauche 1.1 lm[0] = 'z';
849     if (vm_release((char *)lm, 0x2000) < 0) exit(1);
850     vm_exit(); exit(0);
851     }
852     ], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
853     dnl When cross-compiling, do not assume anything.
854     ac_cv_can_map_lm="guessing no"
855     )
856     AC_LANG_RESTORE
857     ]
858     )
859    
860 gbeauche 1.34 dnl Check if we have POSIX shared memory support
861     AC_CACHE_CHECK([whether POSIX shared memory is working],
862     ac_cv_have_posix_shm, [
863     AC_LANG_SAVE
864     AC_LANG_CPLUSPLUS
865     AC_TRY_RUN([
866     #define HAVE_POSIX_SHM
867     #include "vm_alloc.cpp"
868     int main(void) { /* returns 0 if we have working POSIX shm */
869     if (vm_init() < 0) exit(2);
870     char *m1 = (char *)vm_acquire(32768, VM_MAP_DEFAULT | VM_MAP_33BIT);
871     if (m1 == VM_MAP_FAILED) exit(3);
872     vm_exit(); exit(0);
873     }
874     ], ac_cv_have_posix_shm=yes, ac_cv_have_posix_shm=no,
875     dnl When cross-compiling, do not assume anything.
876     ac_cv_have_posix_shm="guessing no"
877     )
878     AC_LANG_RESTORE
879     ]
880     )
881     AC_TRANSLATE_DEFINE(HAVE_POSIX_SHM, "$ac_cv_have_posix_shm",
882     [Define if your system supports POSIX shared memory.])
883    
884     dnl Check if we have working 33-bit memory addressing
885     AC_CACHE_CHECK([whether 33-bit memory addressing is working],
886     ac_cv_have_33bit_addressing, [
887     AC_LANG_SAVE
888     AC_LANG_CPLUSPLUS
889     AC_TRY_RUN([
890     #define USE_33BIT_ADDRESSING 1
891     #include "vm_alloc.cpp"
892     int main(void) { /* returns 0 if we have working 33-bit addressing */
893     if (sizeof(void *) < 8) exit(1);
894     if (vm_init() < 0) exit(2);
895     char *m1 = (char *)vm_acquire(32768, VM_MAP_DEFAULT | VM_MAP_33BIT);
896     if (m1 == VM_MAP_FAILED) exit(3);
897     char *m2 = m1 + (1L << 32);
898     m1[0] = 0x12; if (m2[0] != 0x12) exit(4);
899     m2[0] = 0x34; if (m1[0] != 0x34) exit(5);
900     vm_exit(); exit(0);
901     }
902     ], ac_cv_have_33bit_addressing=yes, ac_cv_have_33bit_addressing=no,
903     dnl When cross-compiling, do not assume anything.
904     ac_cv_have_33bit_addressing="guessing no"
905     )
906     AC_LANG_RESTORE
907     ]
908     )
909    
910 gbeauche 1.1 dnl Check signal handlers need to be reinstalled
911     AC_CACHE_CHECK([whether signal handlers need to be reinstalled],
912     ac_cv_signal_need_reinstall, [
913     AC_LANG_SAVE
914     AC_LANG_CPLUSPLUS
915     AC_TRY_RUN([
916     #include <stdlib.h>
917     #ifdef HAVE_UNISTD_H
918     #include <unistd.h>
919     #endif
920     #include <signal.h>
921     static int handled_signal = 0;
922     RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
923     int main(void) { /* returns 0 if signals need not to be reinstalled */
924     signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
925     exit(handled_signal == 2);
926     }
927     ], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
928     dnl When cross-compiling, do not assume anything.
929     ac_cv_signal_need_reinstall="guessing yes"
930     )
931     AC_LANG_RESTORE
932     ]
933     )
934     AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall",
935     [Define if your system requires signals to be reinstalled.])
936    
937     dnl Check if sigaction handlers need to be reinstalled
938     AC_CACHE_CHECK([whether sigaction handlers need to be reinstalled],
939     ac_cv_sigaction_need_reinstall, [
940     AC_LANG_SAVE
941     AC_LANG_CPLUSPLUS
942     AC_TRY_RUN([
943     #include <stdlib.h>
944     #ifdef HAVE_UNISTD_H
945     #include <unistd.h>
946     #endif
947     #include <signal.h>
948     static int handled_signal = 0;
949     RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
950     typedef RETSIGTYPE (*signal_handler)(int);
951     static signal_handler mysignal(int sig, signal_handler handler) {
952     struct sigaction old_sa;
953     struct sigaction new_sa;
954     new_sa.sa_handler = handler;
955     return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
956     }
957     int main(void) { /* returns 0 if signals need not to be reinstalled */
958     mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
959     exit(handled_signal == 2);
960     }
961     ], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
962     dnl When cross-compiling, do not assume anything.
963     ac_cv_sigaction_need_reinstall="guessing yes"
964     )
965     AC_LANG_RESTORE
966     ]
967     )
968     AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall",
969     [Define if your system requires sigactions to be reinstalled.])
970    
971 gbeauche 1.21 dnl Check if Mach exceptions supported.
972     AC_CACHE_CHECK([whether your system supports Mach exceptions],
973     ac_cv_have_mach_exceptions, [
974 gbeauche 1.1 AC_LANG_SAVE
975     AC_LANG_CPLUSPLUS
976     AC_TRY_RUN([
977 gbeauche 1.21 #define HAVE_MACH_EXCEPTIONS 1
978 gbeauche 1.1 #define CONFIGURE_TEST_SIGSEGV_RECOVERY
979     #include "vm_alloc.cpp"
980     #include "sigsegv.cpp"
981 gbeauche 1.21 ], [
982     sigsegv_recovery=mach
983     ac_cv_have_mach_exceptions=yes
984     ],
985     ac_cv_have_mach_exceptions=no,
986 gbeauche 1.1 dnl When cross-compiling, do not assume anything.
987 gbeauche 1.21 ac_cv_have_mach_exceptions=no
988 gbeauche 1.1 )
989     AC_LANG_RESTORE
990     ]
991     )
992 gbeauche 1.21 AC_TRANSLATE_DEFINE(HAVE_MACH_EXCEPTIONS, "$ac_cv_have_mach_exceptions",
993     [Define if your system supports Mach exceptions.])
994    
995 gbeauche 1.36 dnl Check if Windows exceptions are supported.
996     AC_CACHE_CHECK([whether your system supports Windows exceptions],
997     ac_cv_have_win32_exceptions, [
998     AC_LANG_SAVE
999     AC_LANG_CPLUSPLUS
1000     AC_TRY_RUN([
1001     #define HAVE_WIN32_EXCEPTIONS 1
1002     #define CONFIGURE_TEST_SIGSEGV_RECOVERY
1003     #include "vm_alloc.cpp"
1004     #include "sigsegv.cpp"
1005     ], [
1006     sigsegv_recovery=win32
1007     ac_cv_have_win32_exceptions=yes
1008     ],
1009     ac_cv_have_win32_exceptions=no,
1010     dnl When cross-compiling, do not assume anything.
1011     ac_cv_have_win32_exceptions=no
1012     )
1013     AC_LANG_RESTORE
1014     ]
1015     )
1016     AC_TRANSLATE_DEFINE(HAVE_WIN32_EXCEPTIONS, "$ac_cv_have_win32_exceptions",
1017     [Define if your system supports Windows exceptions.])
1018    
1019 gbeauche 1.21 dnl Otherwise, check if extended signals are supported.
1020     if [[ -z "$sigsegv_recovery" ]]; then
1021     AC_CACHE_CHECK([whether your system supports extended signal handlers],
1022     ac_cv_have_extended_signals, [
1023     AC_LANG_SAVE
1024     AC_LANG_CPLUSPLUS
1025     AC_TRY_RUN([
1026     #define HAVE_SIGINFO_T 1
1027     #define CONFIGURE_TEST_SIGSEGV_RECOVERY
1028     #include "vm_alloc.cpp"
1029     #include "sigsegv.cpp"
1030     ], [
1031     sigsegv_recovery=siginfo
1032     ac_cv_have_extended_signals=yes
1033     ],
1034     ac_cv_have_extended_signals=no,
1035     dnl When cross-compiling, do not assume anything.
1036     ac_cv_have_extended_signals=no
1037     )
1038     AC_LANG_RESTORE
1039     ]
1040     )
1041     AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
1042     [Define if your system support extended signals.])
1043     fi
1044 gbeauche 1.1
1045     dnl Otherwise, check for subterfuges.
1046 gbeauche 1.21 if [[ -z "$sigsegv_recovery" ]]; then
1047 gbeauche 1.1 AC_CACHE_CHECK([whether we then have a subterfuge for your system],
1048     ac_cv_have_sigcontext_hack, [
1049     AC_LANG_SAVE
1050     AC_LANG_CPLUSPLUS
1051     AC_TRY_RUN([
1052     #define HAVE_SIGCONTEXT_SUBTERFUGE 1
1053     #define CONFIGURE_TEST_SIGSEGV_RECOVERY
1054     #include "vm_alloc.cpp"
1055     #include "sigsegv.cpp"
1056 gbeauche 1.21 ], [
1057     sigsegv_recovery=sigcontext
1058     ac_cv_have_sigcontext_hack=yes
1059     ],
1060     ac_cv_have_sigcontext_hack=no,
1061 gbeauche 1.1 dnl When cross-compiling, do not assume anything.
1062     ac_cv_have_sigcontext_hack=no
1063     )
1064     AC_LANG_RESTORE
1065     ])
1066     AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack",
1067     [Define if we know a hack to replace siginfo_t->si_addr member.])
1068     fi
1069    
1070     dnl Check if we can ignore the fault (instruction skipping in SIGSEGV handler)
1071     AC_CACHE_CHECK([whether we can skip instruction in SIGSEGV handler],
1072     ac_cv_have_skip_instruction, [
1073     AC_LANG_SAVE
1074     AC_LANG_CPLUSPLUS
1075     AC_TRY_RUN([
1076     #define HAVE_SIGSEGV_SKIP_INSTRUCTION 1
1077     #define CONFIGURE_TEST_SIGSEGV_RECOVERY
1078     #include "vm_alloc.cpp"
1079     #include "sigsegv.cpp"
1080     ], ac_cv_have_skip_instruction=yes, ac_cv_have_skip_instruction=no,
1081     dnl When cross-compiling, do not assume anything.
1082     ac_cv_have_skip_instruction=no
1083     )
1084     AC_LANG_RESTORE
1085     ]
1086     )
1087     AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$ac_cv_have_skip_instruction",
1088     [Define if we can ignore the fault (instruction skipping in SIGSEGV handler).])
1089    
1090     dnl Can we do Video on SEGV Signals ?
1091     CAN_VOSF=no
1092 gbeauche 1.21 if [[ -n "$sigsegv_recovery" ]]; then
1093 gbeauche 1.1 CAN_VOSF=yes
1094     fi
1095    
1096 gbeauche 1.23 dnl A dummy program that returns always true
1097 gbeauche 1.28 AC_PATH_PROG([BLESS], "true")
1098 gbeauche 1.23
1099 gbeauche 1.1 dnl Determine the addressing mode to use
1100     if [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
1101     ADDRESSING_MODE="real"
1102     else
1103     ADDRESSING_MODE=""
1104     AC_MSG_CHECKING([for the addressing mode to use])
1105     for am in $ADDRESSING_TEST_ORDER; do
1106     case $am in
1107     real)
1108     dnl Requires ability to mmap() Low Memory globals
1109 gbeauche 1.23 if [[ "x$ac_cv_can_map_lm$ac_cv_pagezero_hack" = "xnono" ]]; then
1110 gbeauche 1.1 continue
1111     fi
1112 gbeauche 1.23 dnl Requires VOSF screen updates
1113 gbeauche 1.1 if [[ "x$CAN_VOSF" = "xno" ]]; then
1114     continue
1115     fi
1116     dnl Real addressing will probably work.
1117     ADDRESSING_MODE="real"
1118     WANT_VOSF=yes dnl we can use VOSF and we need it actually
1119     DEFINES="$DEFINES -DREAL_ADDRESSING"
1120 gbeauche 1.23 if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
1121     BLESS=Darwin/lowmem
1122     LDFLAGS="$LDFLAGS -pagezero_size 0x2000"
1123     fi
1124 gbeauche 1.1 break
1125     ;;
1126     direct)
1127     dnl Requires VOSF screen updates
1128     if [[ "x$CAN_VOSF" = "xyes" ]]; then
1129     ADDRESSING_MODE="direct"
1130     WANT_VOSF=yes dnl we can use VOSF and we need it actually
1131     DEFINES="$DEFINES -DDIRECT_ADDRESSING"
1132     break
1133     fi
1134     ;;
1135     banks)
1136     dnl Default addressing mode
1137     ADDRESSING_MODE="memory banks"
1138     break
1139     ;;
1140     *)
1141     AC_MSG_ERROR([Internal configure.in script error for $am addressing mode])
1142     esac
1143     done
1144     AC_MSG_RESULT($ADDRESSING_MODE)
1145     if [[ "x$ADDRESSING_MODE" = "x" ]]; then
1146     AC_MSG_WARN([Sorry, no suitable addressing mode in $ADDRESSING_TEST_ORDER])
1147     ADDRESSING_MODE="memory banks"
1148     fi
1149     fi
1150    
1151 gbeauche 1.5 dnl Banked Memory Addressing mode is not supported by the JIT compiler
1152     if [[ "x$WANT_JIT" = "xyes" -a "x$ADDRESSING_MODE" = "xmemory banks" ]]; then
1153     AC_MSG_ERROR([Sorry, the JIT Compiler requires Direct Addressing, at least])
1154     fi
1155    
1156 gbeauche 1.1 dnl Enable VOSF screen updates with this feature is requested and feasible
1157     if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then
1158     AC_DEFINE(ENABLE_VOSF, 1, [Define if using video enabled on SEGV signals.])
1159     else
1160     WANT_VOSF=no
1161     fi
1162    
1163     dnl Check for GAS.
1164     HAVE_GAS=no
1165     AC_MSG_CHECKING(for GAS .p2align feature)
1166     cat >conftest.S << EOF
1167     .text
1168     .p2align 5
1169     EOF
1170     if $CC conftest.S -c -o conftest.o >/dev/null 2>&1 ; then HAVE_GAS=yes; fi
1171     AC_MSG_RESULT($HAVE_GAS)
1172    
1173     dnl Check for GCC 2.7 or higher.
1174     HAVE_GCC27=no
1175     AC_MSG_CHECKING(for GCC 2.7 or higher)
1176 gbeauche 1.53 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5)
1177     # error gcc < 2.7
1178     #endif
1179     ]])],
1180     [AC_MSG_RESULT(yes); HAVE_GCC27=yes],
1181     [AC_MSG_RESULT(no)])
1182 gbeauche 1.1
1183     dnl Check for GCC 3.0 or higher.
1184     HAVE_GCC30=no
1185     AC_MSG_CHECKING(for GCC 3.0 or higher)
1186 gbeauche 1.53 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ >= 3)
1187     # error gcc < 3
1188     #endif
1189     ]])],
1190     [AC_MSG_RESULT(yes); HAVE_GCC30=yes],
1191     [AC_MSG_RESULT(no)])
1192 gbeauche 1.1
1193 gbeauche 1.39 dnl Check for ICC.
1194     AC_MSG_CHECKING(for ICC)
1195     HAVE_ICC=no
1196     if $CXX -V -v 2>&1 | grep -q "Intel(R) C++ Compiler"; then
1197     HAVE_ICC=yes
1198     fi
1199     AC_MSG_RESULT($HAVE_ICC)
1200    
1201 gbeauche 1.1 dnl Set "-fomit-frame-pointer" on i386 GCC 2.7 or higher.
1202     dnl Also set "-fno-exceptions" for C++ because exception handling requires
1203     dnl the frame pointer.
1204     if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
1205     CFLAGS="$CFLAGS -fomit-frame-pointer"
1206     CXXFLAGS="$CXXFLAGS -fomit-frame-pointer -fno-exceptions"
1207     fi
1208    
1209     dnl (gb) Do not merge constants since it breaks fpu/fpu_x86.cpp.
1210     dnl As of 2001/08/02, this affects the following compilers:
1211     dnl Official: probably gcc-3.1 (mainline CVS)
1212     dnl Mandrake: gcc-2.96 >= 0.59mdk, gcc-3.0.1 >= 0.1mdk
1213     dnl Red Hat : gcc-2.96 >= 89, gcc-3.0 >= 1
1214 gbeauche 1.39 if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1215 gbeauche 1.1 SAVED_CXXFLAGS="$CXXFLAGS"
1216     CXXFLAGS="$CXXFLAGS -fno-merge-constants"
1217     AC_CACHE_CHECK([whether GCC supports constants merging], ac_cv_gcc_constants_merging, [
1218     AC_LANG_SAVE
1219     AC_LANG_CPLUSPLUS
1220     AC_TRY_COMPILE([],[],[ac_cv_gcc_constants_merging=yes],[ac_cv_gcc_constants_merging=no])
1221     AC_LANG_RESTORE
1222     ])
1223     if [[ "x$ac_cv_gcc_constants_merging" != "xyes" ]]; then
1224     CXXFLAGS="$SAVED_CXXFLAGS"
1225     fi
1226     fi
1227    
1228 gbeauche 1.33 dnl Store motion was introduced in 3.3-hammer branch and any gcc >= 3.4
1229     dnl However, there are some corner cases exposed on x86-64
1230 gbeauche 1.39 if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1231 gbeauche 1.33 SAVED_CXXFLAGS="$CXXFLAGS"
1232     CXXFLAGS="$CXXFLAGS -fno-gcse-sm"
1233     AC_CACHE_CHECK([whether GCC supports store motion], ac_cv_gcc_store_motion, [
1234     AC_LANG_SAVE
1235     AC_LANG_CPLUSPLUS
1236     AC_TRY_COMPILE([],[],[ac_cv_gcc_store_motion=yes],[ac_cv_gcc_store_motion=no])
1237     AC_LANG_RESTORE
1238     ])
1239     if [[ "x$ac_cv_gcc_store_motion" != "xyes" ]]; then
1240     CXXFLAGS="$SAVED_CXXFLAGS"
1241     fi
1242     fi
1243    
1244 gbeauche 1.39 dnl Add -fno-strict-aliasing for slirp sources
1245     if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1246 gbeauche 1.40 SAVED_CFLAGS="$CFLAGS"
1247 gbeauche 1.39 CFLAGS="$CFLAGS -fno-strict-aliasing"
1248     AC_CACHE_CHECK([whether the compiler supports -fno-strict-aliasing],
1249     ac_cv_gcc_no_strict_aliasing, [
1250     AC_TRY_COMPILE([],[],
1251 gbeauche 1.47 [ac_cv_gcc_no_strict_aliasing=yes; AC_SUBST(SLIRP_CFLAGS, "-fno-strict-aliasing")],
1252 gbeauche 1.39 [ac_cv_gcc_no_strict_aliasing=no])
1253     ])
1254     CFLAGS="$SAVED_CFLAGS"
1255     fi
1256    
1257 gbeauche 1.54 dnl Add -mdynamic-no-pic for MacOS X (XXX icc10 will support MacOS X)
1258     if [[ "x$HAVE_GCC30" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1259 gbeauche 1.52 SAVED_CFLAGS="$CFLAGS"
1260     CFLAGS="$CFLAGS -mdynamic-no-pic"
1261     AC_CACHE_CHECK([whether the compiler supports -mdynamic-no-pic],
1262     ac_cv_gcc_mdynamic_no_pic, [
1263     AC_TRY_COMPILE([],[],[ac_cv_gcc_mdynamic_no_pic=yes],[ac_cv_gcc_mdynamic_no_pic=no])
1264     ])
1265     if [[ "x$ac_cv_gcc_mdynamic_no_pic" = "xyes" ]]; then
1266     CXXFLAGS="$CXXFLAGS -mdynamic-no-pic"
1267     else
1268     CFLAGS="$SAVED_CFLAGS"
1269     fi
1270     fi
1271    
1272 gbeauche 1.1 dnl Select appropriate CPU source and REGPARAM define.
1273     ASM_OPTIMIZATIONS=none
1274     CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
1275 gbeauche 1.5
1276     dnl (gb) JITSRCS will be emptied later if the JIT is not available
1277     dnl Other platforms should define their own set of noflags file variants
1278     CAN_JIT=no
1279     JITSRCS="compemu1.cpp compemu2.cpp compemu3.cpp compemu4.cpp compemu5.cpp compemu6.cpp compemu7.cpp compemu8.cpp"
1280    
1281 gbeauche 1.11 if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
1282 gbeauche 1.1 dnl i386 CPU
1283 gbeauche 1.7 DEFINES="$DEFINES -DUNALIGNED_PROFITABLE -DREGPARAM=\"__attribute__((regparm(3)))\""
1284 gbeauche 1.1 if [[ "x$HAVE_GAS" = "xyes" ]]; then
1285     ASM_OPTIMIZATIONS=i386
1286 gbeauche 1.7 DEFINES="$DEFINES -DX86_ASSEMBLY -DOPTIMIZED_FLAGS -DSAHF_SETO_PROFITABLE"
1287 gbeauche 1.10 JITSRCS="cpuemu1_nf.cpp cpuemu2_nf.cpp cpuemu3_nf.cpp cpuemu4_nf.cpp cpuemu5_nf.cpp cpuemu6_nf.cpp cpuemu7_nf.cpp cpuemu8_nf.cpp $JITSRCS"
1288 gbeauche 1.11 CAN_JIT=yes
1289 gbeauche 1.13 fi
1290     elif [[ "x$HAVE_GCC30" = "xyes" -a "x$HAVE_X86_64" = "xyes" ]]; then
1291     dnl x86-64 CPU
1292     DEFINES="$DEFINES -DUNALIGNED_PROFITABLE"
1293     if [[ "x$HAVE_GAS" = "xyes" ]]; then
1294     ASM_OPTIMIZATIONS="x86-64"
1295     DEFINES="$DEFINES -DX86_64_ASSEMBLY -DOPTIMIZED_FLAGS"
1296 gbeauche 1.32 JITSRCS="cpuemu1_nf.cpp cpuemu2_nf.cpp cpuemu3_nf.cpp cpuemu4_nf.cpp cpuemu5_nf.cpp cpuemu6_nf.cpp cpuemu7_nf.cpp cpuemu8_nf.cpp $JITSRCS"
1297     CAN_JIT=yes
1298 gbeauche 1.34 WANT_33BIT_ADDRESSING=yes
1299 gbeauche 1.1 fi
1300     elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
1301     dnl SPARC CPU
1302     case "$target_os" in
1303     solaris*)
1304     AC_MSG_CHECKING(SPARC CPU architecture)
1305     SPARC_TYPE=`Solaris/which_sparc`
1306     AC_MSG_RESULT($SPARC_TYPE)
1307     case "$SPARC_TYPE" in
1308     SPARC_V8)
1309     ASM_OPTIMIZATIONS="SPARC V8 architecture"
1310     DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
1311     CFLAGS="$CFLAGS -Wa,-Av8"
1312     CXXFLAGS="$CXXFLAGS -Wa,-Av8"
1313     ;;
1314     SPARC_V9)
1315     ASM_OPTIMIZATIONS="SPARC V9 architecture"
1316     DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
1317     CFLAGS="$CFLAGS -Wa,-Av9"
1318     CXXFLAGS="$CXXFLAGS -Wa,-Av9"
1319     ;;
1320     esac
1321     ;;
1322     esac
1323     elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
1324     dnl Native m68k, no emulation
1325     CPUINCLUDES="-I../native_cpu"
1326     CPUSRCS="asm_support.s"
1327     fi
1328    
1329 gbeauche 1.5 dnl Enable JIT compiler, if possible.
1330     if [[ "x$WANT_JIT" = "xyes" -a "x$CAN_JIT" ]]; then
1331     JITSRCS="$JITSRCS ../uae_cpu/compiler/compemu_support.cpp ../uae_cpu/compiler/compemu_fpp.cpp compstbl.o cpustbl_nf.o"
1332     DEFINES="$DEFINES -DUSE_JIT -DUSE_JIT_FPU"
1333    
1334     if [[ "x$WANT_JIT_DEBUG" = "xyes" ]]; then
1335     if [[ "x$WANT_MON" = "xyes" ]]; then
1336     DEFINES="$DEFINES -DJIT_DEBUG=1"
1337     else
1338     AC_MSG_WARN([cxmon not found, ignoring --enable-jit-debug])
1339     WANT_JIT_DEBUG=no
1340     fi
1341     fi
1342 gbeauche 1.8
1343     dnl IEEE core is the only FPU emulator to use with the JIT compiler
1344     case $FPE_CORE_TEST_ORDER in
1345     ieee*) ;;
1346     *) AC_MSG_WARN([Forcing use of the IEEE FPU core, as the JIT compiler supports only this one.]) ;;
1347     esac
1348     FPE_CORE_TEST_ORDER="ieee"
1349 gbeauche 1.5 else
1350     WANT_JIT=no
1351     WANT_JIT_DEBUG=no
1352     JITSRCS=""
1353     fi
1354    
1355 gbeauche 1.34 dnl Use 33-bit memory addressing?
1356     if [[ "$ac_cv_have_33bit_addressing:$WANT_33BIT_ADDRESSING" = "yes:yes" ]]; then
1357     use_33bit_addressing=yes
1358     fi
1359     AC_TRANSLATE_DEFINE(USE_33BIT_ADDRESSING, "$use_33bit_addressing",
1360     [Define to use 33-bit memory addressing on 64-bit JIT capable systems.])
1361    
1362 gbeauche 1.1 dnl Utility macro used by next two tests.
1363     dnl AC_EXAMINE_OBJECT(C source code,
1364     dnl commands examining object file,
1365     dnl [commands to run if compile failed]):
1366     dnl
1367     dnl Compile the source code to an object file; then convert it into a
1368     dnl printable representation. All unprintable characters and
1369     dnl asterisks (*) are replaced by dots (.). All white space is
1370     dnl deleted. Newlines (ASCII 0x10) in the input are preserved in the
1371     dnl output, but runs of newlines are compressed to a single newline.
1372     dnl Finally, line breaks are forcibly inserted so that no line is
1373     dnl longer than 80 columns and the file ends with a newline. The
1374     dnl result of all this processing is in the file conftest.dmp, which
1375     dnl may be examined by the commands in the second argument.
1376     dnl
1377     AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
1378     [AC_LANG_SAVE
1379     AC_LANG_C
1380     dnl Next bit cribbed from AC_TRY_COMPILE.
1381     cat > conftest.$ac_ext <<EOF
1382     [#line __oline__ "configure"
1383     #include "confdefs.h"
1384     $1
1385     ]EOF
1386     if AC_TRY_EVAL(ac_compile); then
1387     od -c conftest.o |
1388     sed ['s/^[0-7]*[ ]*/ /
1389     s/\*/./g
1390     s/ \\n/*/g
1391     s/ [0-9][0-9][0-9]/./g
1392     s/ \\[^ ]/./g'] |
1393     tr -d '
1394     ' | tr -s '*' '
1395     ' | fold | sed '$a\
1396     ' > conftest.dmp
1397     $2
1398     ifelse($3, , , else
1399     $3
1400     )dnl
1401     fi
1402     rm -rf conftest*
1403     AC_LANG_RESTORE])
1404    
1405     dnl Floating point format probe.
1406     dnl The basic concept is the same as the above: grep the object
1407     dnl file for an interesting string. We have to watch out for
1408     dnl rounding changing the values in the object, however; this is
1409     dnl handled by ignoring the least significant byte of the float.
1410     dnl
1411     dnl Does not know about VAX G-float or C4x idiosyncratic format.
1412     dnl It does know about PDP-10 idiosyncratic format, but this is
1413     dnl not presently supported by GCC. S/390 "binary floating point"
1414     dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
1415     dnl as ASCII?)
1416     dnl
1417     AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
1418     [AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
1419     [gcc_AC_EXAMINE_OBJECT(
1420     [/* This will not work unless sizeof(double) == 8. */
1421     extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
1422    
1423     /* This structure must have no internal padding. */
1424     struct possibility {
1425     char prefix[8];
1426     double candidate;
1427     char postfix[8];
1428     };
1429    
1430     #define C(cand) { "\nformat:", cand, ":tamrof\n" }
1431     struct possibility table [] =
1432     {
1433     C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
1434     C( 3.53802595280598432000e+18), /* D__float - VAX */
1435     C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
1436     C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
1437     C(-5.22995989424860458374e+10) /* IBMHEXFP - s/390 format, EBCDIC */
1438     };],
1439     [if grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1440     ac_cv_c_float_format='IEEE (big-endian)'
1441     elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
1442     ac_cv_c_float_format='IEEE (big-endian)'
1443     elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
1444     ac_cv_c_float_format='IEEE (little-endian)'
1445     elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
1446     ac_cv_c_float_format='IEEE (little-endian)'
1447     elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
1448     ac_cv_c_float_format='VAX D-float'
1449     elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
1450     ac_cv_c_float_format='PDP-10'
1451     elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1452     ac_cv_c_float_format='IBM 370 hex'
1453     else
1454     AC_MSG_ERROR(Unknown floating point format)
1455     fi],
1456     [AC_MSG_ERROR(compile failed)])
1457     ])
1458     # IEEE is the default format. If the float endianness isn't the same
1459     # as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
1460     # (which is a tristate: yes, no, default). This is only an issue with
1461     # IEEE; the other formats are only supported by a few machines each,
1462     # all with the same endianness.
1463     format=IEEE_FLOAT_FORMAT
1464     fbigend=
1465     case $ac_cv_c_float_format in
1466     'IEEE (big-endian)' )
1467     if test $ac_cv_c_bigendian = no; then
1468     fbigend=1
1469     fi
1470     ;;
1471     'IEEE (little-endian)' )
1472     if test $ac_cv_c_bigendian = yes; then
1473     fbigend=0
1474     fi
1475     ;;
1476     'VAX D-float' )
1477     format=VAX_FLOAT_FORMAT
1478     ;;
1479     'PDP-10' )
1480     format=PDP10_FLOAT_FORMAT
1481     ;;
1482     'IBM 370 hex' )
1483     format=IBM_FLOAT_FORMAT
1484     ;;
1485     esac
1486     AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
1487     [Define to the floating point format of the host machine.])
1488     if test -n "$fbigend"; then
1489     AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
1490     [Define to 1 if the host machine stores floating point numbers in
1491     memory with the word containing the sign bit at the lowest address,
1492     or to 0 if it does it the other way around.
1493    
1494     This macro should not be defined if the ordering is the same as for
1495     multi-word integers.])
1496     fi
1497     ])
1498    
1499     dnl Select appropriate FPU source.
1500     gcc_AC_C_FLOAT_FORMAT
1501     AC_CHECK_HEADERS(ieee754.h ieeefp.h floatingpoint.h nan.h)
1502    
1503     for fpe in $FPE_CORE_TEST_ORDER; do
1504     case $fpe in
1505     ieee)
1506 gbeauche 1.2 case $ac_cv_c_float_format in
1507     IEEE*)
1508 gbeauche 1.1 FPE_CORE="IEEE fpu core"
1509     DEFINES="$DEFINES -DFPU_IEEE"
1510     FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
1511 gbeauche 1.4 dnl Math functions not mandated by C99 standard
1512     AC_CHECK_FUNCS(isnanl isinfl)
1513     dnl Math functions required by C99 standard, but probably not
1514     dnl implemented everywhere. In that case, we fall back to the
1515     dnl regular variant for doubles.
1516     AC_CHECK_FUNCS(logl log10l expl powl fabsl sqrtl)
1517     AC_CHECK_FUNCS(sinl cosl tanl sinhl coshl tanhl)
1518     AC_CHECK_FUNCS(asinl acosl atanl asinhl acoshl atanhl)
1519     AC_CHECK_FUNCS(floorl ceill)
1520 gbeauche 1.1 break
1521 gbeauche 1.2 ;;
1522     esac
1523 gbeauche 1.1 ;;
1524     x86)
1525     if [[ ":$HAVE_GCC27:$HAVE_I386:$HAVE_GAS:" = ":yes:yes:yes:" ]]; then
1526     FPE_CORE="i387 fpu core"
1527     DEFINES="$DEFINES -DFPU_X86"
1528     FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
1529     break
1530     fi
1531     ;;
1532     uae)
1533     FPE_CORE="uae fpu core"
1534     DEFINES="$DEFINES -DFPU_UAE"
1535     FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
1536     break
1537     ;;
1538     *)
1539     AC_MSG_ERROR([Internal configure.in script error for $fpe fpu core])
1540     ;;
1541     esac
1542     done
1543     if [[ "x$FPE_CORE" = "x" ]]; then
1544     AC_MSG_ERROR([Sorry, no suitable FPU core found in $FPE_CORE_TEST_ORDER])
1545     fi
1546    
1547     dnl Check for certain math functions
1548     AC_CHECK_FUNCS(atanh)
1549 gbeauche 1.4 AC_CHECK_FUNCS(isnan isinf finite isnormal signbit)
1550 gbeauche 1.1
1551     dnl UAE CPU sources for all non-m68k-native architectures.
1552     if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
1553     CPUINCLUDES="-I../uae_cpu"
1554 gbeauche 1.5 CPUSRCS="../uae_cpu/basilisk_glue.cpp ../uae_cpu/memory.cpp ../uae_cpu/newcpu.cpp ../uae_cpu/readcpu.cpp $FPUSRCS cpustbl.cpp cpudefs.cpp $CPUSRCS $JITSRCS"
1555 gbeauche 1.1 fi
1556    
1557     dnl Remove the "-g" option if set for GCC.
1558     if [[ "x$HAVE_GCC27" = "xyes" ]]; then
1559 gbeauche 1.33 CFLAGS=`echo $CFLAGS | sed -e 's/-g\b//g'`
1560     CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g\b//g'`
1561 gbeauche 1.1 fi
1562    
1563 gbeauche 1.14 dnl Or if we have -IPA (MIPSPro compilers)
1564     if [[ "x$HAVE_IPA" = "xyes" ]]; then
1565     CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1566     CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1567 gbeauche 1.1 CXXFLAGS="-LANG:std $CXXFLAGS"
1568 gbeauche 1.14 LDFLAGS="$LDFLAGS -O3 -OPT:Olimit=0 -IPA"
1569 gbeauche 1.1 fi
1570    
1571     dnl Generate Makefile.
1572     AC_SUBST(DEFINES)
1573     AC_SUBST(SYSSRCS)
1574     AC_SUBST(CPUINCLUDES)
1575     AC_SUBST(CPUSRCS)
1576 gbeauche 1.23 AC_SUBST(BLESS)
1577 gbeauche 1.29 AC_SUBST(KEYCODES)
1578 cebix 1.16 AC_CONFIG_FILES([Makefile])
1579     AC_OUTPUT
1580 gbeauche 1.1
1581     dnl Print summary.
1582     echo
1583     echo Basilisk II configuration summary:
1584     echo
1585 gbeauche 1.26 echo SDL support ............................ : $SDL_SUPPORT
1586 gbeauche 1.1 echo XFree86 DGA support .................... : $WANT_XF86_DGA
1587     echo XFree86 VidMode support ................ : $WANT_XF86_VIDMODE
1588     echo fbdev DGA support ...................... : $WANT_FBDEV_DGA
1589     echo Enable video on SEGV signals ........... : $WANT_VOSF
1590     echo ESD sound support ...................... : $WANT_ESD
1591     echo GTK user interface ..................... : $WANT_GTK
1592     echo mon debugger support ................... : $WANT_MON
1593     echo Running m68k code natively ............. : $WANT_NATIVE_M68K
1594 gbeauche 1.5 echo Use JIT compiler ....................... : $WANT_JIT
1595     echo JIT debug mode ......................... : $WANT_JIT_DEBUG
1596 gbeauche 1.1 echo Floating-Point emulation core .......... : $FPE_CORE
1597     echo Assembly optimizations ................. : $ASM_OPTIMIZATIONS
1598     echo Addressing mode ........................ : $ADDRESSING_MODE
1599 gbeauche 1.21 echo Bad memory access recovery type ........ : $sigsegv_recovery
1600 gbeauche 1.1 echo
1601     echo "Configuration done. Now type \"make\" (or \"gmake\")."