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root/cebix/BasiliskII/src/Unix/configure.ac
Revision: 1.18
Committed: 2003-08-17T10:16:23Z (21 years, 2 months ago) by gbeauche
Branch: MAIN
Changes since 1.17: +4 -0 lines
Log Message:
AM_GNU_GETTEXT for gnome stuff

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 1.5 dnl Video options.
10 gbeauche 1.1 AC_ARG_ENABLE(xf86-dga, [ --enable-xf86-dga use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
11     AC_ARG_ENABLE(xf86-vidmode, [ --enable-xf86-vidmode use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
12     AC_ARG_ENABLE(fbdev-dga, [ --enable-fbdev-dga use direct frame buffer access via /dev/fb [default=yes]], [WANT_FBDEV_DGA=$enableval], [WANT_FBDEV_DGA=yes])
13     AC_ARG_ENABLE(vosf, [ --enable-vosf enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
14    
15 gbeauche 1.5 dnl JIT compiler options.
16     AC_ARG_ENABLE(jit-compiler, [ --enable-jit-compiler enable JIT compiler [default=no]], [WANT_JIT=$enableval], [WANT_JIT=no])
17     AC_ARG_ENABLE(jit-debug, [ --enable-jit-debug activate native code disassemblers [default=no]], [WANT_JIT_DEBUG=$enableval], [WANT_JIT_DEBUG=no])
18    
19 gbeauche 1.1 dnl FPU emulation core.
20     AC_ARG_ENABLE(fpe,
21     [ --enable-fpe=FPE specify which fpu emulator to use [default=auto]],
22     [ case "$enableval" in
23     dnl default is always ieee, if architecture has this fp format
24     auto) FPE_CORE_TEST_ORDER="ieee uae";;
25     ieee) FPE_CORE_TEST_ORDER="ieee";;
26     uae) FPE_CORE_TEST_ORDER="uae";;
27     x86) FPE_CORE_TEST_ORDER="x86";;
28     *) AC_MSG_ERROR([--enable-fpe takes only one of the following values: auto, x86, ieee, uae]);;
29     esac
30     ],
31     [ FPE_CORE_TEST_ORDER="ieee uae"
32     ])
33    
34     dnl Addressing modes.
35     AC_ARG_ENABLE(addressing,
36     [ --enable-addressing=AM specify the addressing mode to use [default=fastest]],
37     [ case "$enableval" in
38     real) ADDRESSING_TEST_ORDER="real";;
39     direct) ADDRESSING_TEST_ORDER="direct";;
40     banks) ADDRESSING_TEST_ORDER="banks";;
41     fastest)ADDRESSING_TEST_ORDER="direct banks";;
42     *) AC_MSG_ERROR([--enable-addressing takes only one of the following values: fastest, real, direct, banks]);;
43     esac
44     ],
45     [ ADDRESSING_TEST_ORDER="direct banks"
46     ])
47    
48     dnl External packages.
49     AC_ARG_WITH(esd, [ --with-esd support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
50     AC_ARG_WITH(gtk, [ --with-gtk use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes])
51     AC_ARG_WITH(mon, [ --with-mon use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
52    
53     dnl Canonical system information.
54     AC_CANONICAL_HOST
55     AC_CANONICAL_TARGET
56    
57     dnl Target OS type (target is host if not cross-compiling).
58     case "$target_os" in
59     linux*) OS_TYPE=linux;;
60     netbsd*) OS_TYPE=netbsd;;
61     freebsd*) OS_TYPE=freebsd;;
62     solaris*) OS_TYPE=solaris;;
63     darwin*) OS_TYPE=darwin;;
64     *) OS_TYPE=`echo $target_os | sed -e 's/-/_/g' | sed -e 's/\./_/g'`;;
65     esac
66     DEFINES="$DEFINES -DOS_$OS_TYPE"
67    
68     dnl Target CPU type.
69     HAVE_I386=no
70     HAVE_M68K=no
71     HAVE_SPARC=no
72     HAVE_POWERPC=no
73 gbeauche 1.13 HAVE_X86_64=no
74 gbeauche 1.1 case "$target_cpu" in
75 gbeauche 1.12 i386* | i486* | i586* | i686* | i786* ) HAVE_I386=yes;;
76     m68k* ) HAVE_M68K=yes;;
77     sparc* ) HAVE_SPARC=yes;;
78     powerpc* ) HAVE_POWERPC=yes;;
79 gbeauche 1.13 x86_64* ) HAVE_X86_64=yes;;
80 gbeauche 1.1 esac
81    
82     dnl Checks for programs.
83     AC_PROG_CC
84     AC_PROG_CC_C_O
85     AC_PROG_CPP
86     AC_PROG_CXX
87     AC_PROG_MAKE_SET
88     AC_PROG_INSTALL
89    
90     dnl We use mon if possible.
91     MONSRCS=
92     if [[ "x$WANT_MON" = "xyes" ]]; then
93     AC_MSG_CHECKING(for mon)
94     mon_srcdir=../../../mon/src
95     if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
96     AC_MSG_RESULT(yes)
97     AC_DEFINE(ENABLE_MON, 1, [Define if using "mon".])
98     MONSRCS="$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 $mon_srcdir/disass/m68k-opc.c"
99     CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
100     AC_CHECK_LIB(ncurses, tgetent, ,
101     AC_CHECK_LIB(termcap, tgetent, ,
102     AC_CHECK_LIB(termlib, tgetent, ,
103     AC_CHECK_LIB(terminfo, tgetent, ,
104     AC_CHECK_LIB(Hcurses, tgetent, ,
105     AC_CHECK_LIB(curses, tgetent))))))
106     AC_CHECK_LIB(readline, readline)
107     AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
108     else
109     AC_MSG_RESULT(no)
110     AC_MSG_WARN([Could not find mon, ignoring --with-mon.])
111     WANT_MON=no
112     fi
113     fi
114    
115     dnl Checks for libraries.
116     AC_CHECK_LIB(posix4, sem_init)
117     AC_CHECK_LIB(rt, timer_create)
118    
119     dnl We need X11.
120     AC_PATH_XTRA
121     if [[ "x$no_x" = "xyes" ]]; then
122     AC_MSG_ERROR([You need X11 to run Basilisk II.])
123     fi
124     CFLAGS="$CFLAGS $X_CFLAGS"
125     CXXFLAGS="$CXXFLAGS $X_CFLAGS"
126     LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS"
127    
128     dnl We want pthreads. Try libpthread first, then libc_r (FreeBSD), then PTL.
129     HAVE_PTHREADS=yes
130     AC_CHECK_LIB(pthread, pthread_create, , [
131     AC_CHECK_LIB(c_r, pthread_create, , [
132     AC_CHECK_LIB(PTL, pthread_create, , [
133     HAVE_PTHREADS=no
134     ])
135     ])
136     ])
137     if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
138     AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
139     fi
140     AC_CHECK_FUNCS(pthread_cancel)
141     AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
142     AC_CHECK_FUNCS(pthread_mutexattr_settype)
143 gbeauche 1.3 AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
144 gbeauche 1.1
145     dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
146     SEMSRC=
147     AC_CHECK_FUNCS(sem_init, , [
148     if test "x$HAVE_PTHREADS" = "xyes"; then
149     SEMSRC=posix_sem.cpp
150     fi
151     ])
152    
153     dnl We use DGA (XFree86 or fbdev) if possible.
154     if [[ "x$WANT_XF86_DGA" = "xyes" ]]; then
155     AC_CHECK_LIB(Xxf86dga, XF86DGAQueryExtension, [
156     AC_DEFINE(ENABLE_XF86_DGA, 1, [Define if using XFree86 DGA extension.])
157     LIBS="$LIBS -lXxf86dga"
158     if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
159     AC_MSG_WARN([Cannot have both --enable-xf86-dga and --enable-fbdev-dga, ignoring --enable-fbdev-dga.])
160     WANT_FBDEV_DGA=no
161     fi
162     ], [
163     AC_MSG_WARN([Could not find XFree86 DGA extension, ignoring --enable-xf86-dga.])
164     WANT_XF86_DGA=no
165     ])
166     fi
167     if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
168     AC_DEFINE(ENABLE_FBDEV_DGA, 1, [Define if using DGA with framebuffer device.])
169     fi
170    
171     dnl We use XFree86 VidMode if possible.
172     if [[ "x$WANT_XF86_VIDMODE" = "xyes" ]]; then
173     AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryExtension, [
174     AC_DEFINE(ENABLE_XF86_VIDMODE, 1, [Define if using XFree86 DGA extension.])
175     LIBS="$LIBS -lXxf86vm"
176     ], [
177     AC_MSG_WARN([Could not find XFree86 VidMode extension, ignoring --enable-xf86-vidmode.])
178     WANT_XF86_VIDMODE=no
179     ])
180     fi
181    
182     dnl We use GTK+ if possible.
183     UISRCS=../dummy/prefs_editor_dummy.cpp
184     if [[ "x$WANT_GTK" = "xyes" ]]; then
185     AM_PATH_GTK(1.2.0, [
186     AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
187     CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
188     LIBS="$LIBS $GTK_LIBS"
189     UISRCS=prefs_editor_gtk.cpp
190 gbeauche 1.18 dnl somehow, <gnome-i18n.h> would redefine gettext() to nothing if
191     dnl ENABLE_NLS is not set, thusly conflicting with C++ <string> which
192     dnl includes <libintl.h>
193     AM_GNU_GETTEXT
194 gbeauche 1.1 B2_PATH_GNOMEUI([
195     AC_DEFINE(HAVE_GNOMEUI, 1, [Define if libgnomeui is available.])
196     CXXFLAGS="$CXXFLAGS $GNOMEUI_CFLAGS"
197     LIBS="$LIBS $GNOMEUI_LIBS"
198     ], [])
199     ], [
200     AC_MSG_WARN([Could not find GTK+, disabling user interface.])
201     WANT_GTK=no
202     ])
203     fi
204    
205     dnl We use ESD if possible.
206     if [[ "x$WANT_ESD" = "xyes" ]]; then
207     AM_PATH_ESD(0.2.8, [
208     AC_DEFINE(ENABLE_ESD, 1, [Define is using ESD.])
209     CFLAGS="$CFLAGS $ESD_CFLAGS"
210     CXXFLAGS="$CXXFLAGS $ESD_CFLAGS"
211     LIBS="$LIBS $ESD_LIBS"
212     ], [
213     AC_MSG_WARN([Could not find ESD, disabling ESD support.])
214     WANT_ESD=no
215     ])
216     fi
217    
218     dnl We use 64-bit file size support if possible.
219     AC_SYS_LARGEFILE
220    
221     dnl Checks for header files.
222     AC_HEADER_STDC
223     AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h)
224    
225     dnl Checks for typedefs, structures, and compiler characteristics.
226     AC_C_BIGENDIAN
227     AC_C_CONST
228     AC_C_INLINE
229     AC_CHECK_SIZEOF(short, 2)
230     AC_CHECK_SIZEOF(int, 4)
231     AC_CHECK_SIZEOF(long, 4)
232     AC_CHECK_SIZEOF(long long, 8)
233     AC_CHECK_SIZEOF(float, 4)
234     AC_CHECK_SIZEOF(double, 8)
235     AC_CHECK_SIZEOF(long double, 12)
236     AC_CHECK_SIZEOF(void *, 4)
237     AC_TYPE_OFF_T
238     AC_CHECK_TYPE(loff_t, off_t)
239     AC_CHECK_TYPE(caddr_t, [char *])
240     AC_TYPE_SIZE_T
241     AC_TYPE_SIGNAL
242     AC_HEADER_TIME
243     AC_STRUCT_TM
244    
245     dnl Check whether sys/socket.h defines type socklen_t.
246     dnl (extracted from ac-archive/Miscellaneous)
247     AC_CACHE_CHECK([for socklen_t],
248     ac_cv_type_socklen_t, [
249     AC_TRY_COMPILE([
250     #include <sys/types.h>
251     #include <sys/socket.h>
252     ], [socklen_t len = 42; return 0;],
253     ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
254     dnl When cross-compiling, do not assume anything.
255     ac_cv_type_socklen_t="guessing no"
256     )
257     ])
258     if [[ "x$ac_cv_type_socklen_t" != "xyes" ]]; then
259     AC_DEFINE(socklen_t, int, [Define to 'int' if <sys/types.h> doesn't define.])
260     fi
261    
262     dnl Checks for library functions.
263     AC_CHECK_FUNCS(strdup cfmakeraw)
264     AC_CHECK_FUNCS(clock_gettime timer_create)
265     AC_CHECK_FUNCS(sigaction signal)
266     AC_CHECK_FUNCS(mmap mprotect munmap)
267     AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
268    
269     dnl Darwin seems to define mach_task_self() instead of task_self().
270     AC_CHECK_FUNCS(mach_task_self task_self)
271    
272     dnl Check for headers and functions related to pty support (sshpty.c)
273     dnl From openssh-3.2.2p1 configure.ac
274    
275     AC_CHECK_HEADERS(strings.h login.h sys/bsdtty.h sys/stat.h util.h pty.h)
276     AC_CHECK_FUNCS(_getpty vhangup strlcpy)
277    
278     case "$host" in
279     *-*-hpux10.26)
280     disable_ptmx_check=yes
281     ;;
282     *-*-linux*)
283     no_dev_ptmx=1
284     ;;
285     mips-sony-bsd|mips-sony-newsos4)
286     AC_DEFINE(HAVE_NEWS4, 1, [Define if you are on NEWS-OS (additions from openssh-3.2.2p1, for sshpty.c).])
287     ;;
288     *-*-sco3.2v4*)
289     no_dev_ptmx=1
290     ;;
291     *-*-sco3.2v5*)
292     no_dev_ptmx=1
293     ;;
294     esac
295    
296     if test -z "$no_dev_ptmx" ; then
297     if test "x$disable_ptmx_check" != "xyes" ; then
298     AC_CHECK_FILE([/dev/ptmx],
299     [
300     AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX, 1, [Define if you have /dev/ptmx.])
301     have_dev_ptmx=1
302     ]
303     )
304     fi
305     fi
306     AC_CHECK_FILE([/dev/ptc],
307     [
308     AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC, 1, [Define if you have /dev/ptc.])
309     have_dev_ptc=1
310     ]
311     )
312    
313     dnl (end of code from openssh-3.2.2p1 configure.ac)
314    
315    
316     dnl Select system-dependant source files.
317     SERIALSRC=serial_unix.cpp
318     ETHERSRC=../dummy/ether_dummy.cpp
319     SCSISRC=../dummy/scsi_dummy.cpp
320     AUDIOSRC=../dummy/audio_dummy.cpp
321     EXTRASYSSRCS=
322     CAN_NATIVE_M68K=no
323     case "$target_os" in
324     linux*)
325     ETHERSRC=ether_unix.cpp
326     AUDIOSRC=audio_oss_esd.cpp
327     SCSISRC=Linux/scsi_linux.cpp
328     ;;
329     freebsd*)
330     ETHERSRC=ether_unix.cpp
331     AUDIOSRC=audio_oss_esd.cpp
332     DEFINES="$DEFINES -DBSD_COMP"
333     CXXFLAGS="$CXXFLAGS -fpermissive"
334     dnl Check for the CAM library
335     AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
336     if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
337     AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
338     else
339     dnl Check for the sys kernel includes
340     AC_CHECK_HEADER(camlib.h)
341     if [[ "x$ac_cv_header_camlib_h" = "xno" ]]; then
342     dnl In this case I should fix this thing including a "patch"
343     dnl to access directly to the functions in the kernel :) --Orlando
344     AC_MSG_WARN([Cannot find includes for CAM library, disabling SCSI support.])
345     else
346     SCSISRC=FreeBSD/scsi_freebsd.cpp
347     LIBS="$LIBS -lcam"
348     DEFINES="$DEFINES -DCAM"
349     fi
350     fi
351     ;;
352     netbsd*)
353     CAN_NATIVE_M68K=yes
354     ;;
355     solaris*)
356     AUDIOSRC=Solaris/audio_solaris.cpp
357     DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
358     ;;
359     irix*)
360     ETHERSRC=ether_unix.cpp
361     AUDIOSRC=Irix/audio_irix.cpp
362     EXTRASYSSRCS=Irix/unaligned.c
363     dnl IRIX headers work fine, but somehow don't define or use "STDC_HEADERS"
364     DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200 -DSTDC_HEADERS"
365     LIBS="$LIBS -laudio"
366     WANT_ESD=no
367    
368 gbeauche 1.14 dnl Check if our compiler supports -IPA (MIPSPro)
369     HAVE_IPA=no
370 gbeauche 1.1 ocflags="$CFLAGS"
371 gbeauche 1.14 CFLAGS=`echo "$CFLAGS -IPA" | sed -e "s/-g//g"`
372     AC_MSG_CHECKING(if "-IPA" works)
373 gbeauche 1.1 dnl Do a test compile of an empty function
374 gbeauche 1.14 AC_TRY_COMPILE(,, [AC_MSG_RESULT(yes); HAVE_IPA=yes], AC_MSG_RESULT(no))
375 gbeauche 1.1 CFLAGS="$ocflags"
376    
377     ;;
378     esac
379    
380     dnl Use 68k CPU natively?
381     WANT_NATIVE_M68K=no
382     if [[ "x$HAVE_M68K" = "xyes" -a "x$CAN_NATIVE_M68K" = "xyes" ]]; then
383     AC_DEFINE(ENABLE_NATIVE_M68K, 1, [Define if using native 68k mode.])
384     WANT_NATIVE_M68K=yes
385     fi
386    
387     if [[ "x$HAVE_PTHREADS" = "xno" ]]; then
388     dnl Serial, ethernet and audio support needs pthreads
389     AC_MSG_WARN([You don't have pthreads, disabling serial, ethernet and audio support.])
390     SERIALSRC=../dummy/serial_dummy.cpp
391     ETHERSRC=../dummy/ether_dummy.cpp
392     AUDIOSRC=../dummy/audio_dummy.cpp
393     fi
394     SYSSRCS="$SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
395    
396     dnl Define a macro that translates a yesno-variable into a C macro definition
397     dnl to be put into the config.h file
398     dnl $1 -- the macro to define
399     dnl $2 -- the value to translate
400     dnl $3 -- template name
401     AC_DEFUN(AC_TRANSLATE_DEFINE, [
402     if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
403     AC_DEFINE($1, 1, $3)
404     fi
405     ])
406    
407     dnl Various checks if the system supports vm_allocate() and the like functions.
408     have_mach_vm=no
409     if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
410     "x$ac_cv_func_vm_protect" = "xyes" ]]; then
411     have_mach_vm=yes
412     fi
413     AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm",
414     [Define if your system has a working vm_allocate()-based memory allocator.])
415    
416     dnl Check that vm_allocate(), vm_protect() work
417     if [[ "x$have_mach_vm" = "xyes" ]]; then
418    
419     AC_CACHE_CHECK([whether vm_protect works],
420     ac_cv_vm_protect_works, [
421     AC_LANG_SAVE
422     AC_LANG_CPLUSPLUS
423     ac_cv_vm_protect_works=yes
424     dnl First the tests that should segfault
425     for test_def in NONE_READ NONE_WRITE READ_WRITE; do
426     AC_TRY_RUN([
427     #define CONFIGURE_TEST_VM_MAP
428     #define TEST_VM_PROT_$test_def
429     #include "vm_alloc.cpp"
430     ], ac_cv_vm_protect_works=no, rm -f core,
431     dnl When cross-compiling, do not assume anything
432     ac_cv_vm_protect_works="guessing no"
433     )
434     done
435     AC_TRY_RUN([
436     #define CONFIGURE_TEST_VM_MAP
437     #define TEST_VM_PROT_RDWR_WRITE
438     #include "vm_alloc.cpp"
439     ], , ac_cv_vm_protect_works=no,
440     dnl When cross-compiling, do not assume anything
441     ac_cv_vm_protect_works="guessing no"
442     )
443     AC_LANG_RESTORE
444     ]
445     )
446    
447     dnl Remove support for vm_allocate() if vm_protect() does not work
448     if [[ "x$have_mach_vm" = "xyes" ]]; then
449     case $ac_cv_vm_protect_works in
450     *yes) have_mach_vm=yes;;
451     *no) have_mach_vm=no;;
452     esac
453     fi
454     AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm",
455     [Define if your system has a working vm_allocate()-based memory allocator.])
456    
457     fi dnl HAVE_MACH_VM
458    
459     dnl Various checks if the system supports mmap() and the like functions.
460     dnl ... and Mach memory allocators are not supported
461     have_mmap_vm=no
462     if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
463     "x$ac_cv_func_mprotect" = "xyes" ]]; then
464     if [[ "x$have_mach_vm" = "xno" ]]; then
465     have_mmap_vm=yes
466     fi
467     fi
468     AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm",
469     [Define if your system has a working mmap()-based memory allocator.])
470    
471     dnl Check that mmap() and associated functions work.
472     if [[ "x$have_mmap_vm" = "xyes" ]]; then
473    
474     dnl Check if we have a working anonymous mmap()
475     AC_CACHE_CHECK([whether mmap supports MAP_ANON],
476     ac_cv_mmap_anon, [
477     AC_LANG_SAVE
478     AC_LANG_CPLUSPLUS
479     AC_TRY_RUN([
480     #define HAVE_MMAP_ANON
481     #define CONFIGURE_TEST_VM_MAP
482     #define TEST_VM_MMAP_ANON
483     #include "vm_alloc.cpp"
484     ], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
485     dnl When cross-compiling, do not assume anything.
486     ac_cv_mmap_anon="guessing no"
487     )
488     AC_LANG_RESTORE
489     ]
490     )
491     AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon",
492     [Define if <sys/mman.h> defines MAP_ANON and mmap()'ing with MAP_ANON works.])
493    
494     AC_CACHE_CHECK([whether mmap supports MAP_ANONYMOUS],
495     ac_cv_mmap_anonymous, [
496     AC_LANG_SAVE
497     AC_LANG_CPLUSPLUS
498     AC_TRY_RUN([
499     #define HAVE_MMAP_ANONYMOUS
500     #define CONFIGURE_TEST_VM_MAP
501     #define TEST_VM_MMAP_ANON
502     #include "vm_alloc.cpp"
503     ], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
504     dnl When cross-compiling, do not assume anything.
505     ac_cv_mmap_anonymous="guessing no"
506     )
507     AC_LANG_RESTORE
508     ]
509     )
510     AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous",
511     [Define if <sys/mman.h> defines MAP_ANONYMOUS and mmap()'ing with MAP_ANONYMOUS works.])
512    
513     AC_CACHE_CHECK([whether mprotect works],
514     ac_cv_mprotect_works, [
515     AC_LANG_SAVE
516     AC_LANG_CPLUSPLUS
517     ac_cv_mprotect_works=yes
518     dnl First the tests that should segfault
519     for test_def in NONE_READ NONE_WRITE READ_WRITE; do
520     AC_TRY_RUN([
521     #define CONFIGURE_TEST_VM_MAP
522     #define TEST_VM_PROT_$test_def
523     #include "vm_alloc.cpp"
524     ], ac_cv_mprotect_works=no, rm -f core,
525     dnl When cross-compiling, do not assume anything
526     ac_cv_mprotect_works="guessing no"
527     )
528     done
529     AC_TRY_RUN([
530     #define CONFIGURE_TEST_VM_MAP
531     #define TEST_VM_PROT_RDWR_WRITE
532     #include "vm_alloc.cpp"
533     ], , ac_cv_mprotect_works=no,
534     dnl When cross-compiling, do not assume anything
535     ac_cv_mprotect_works="guessing no"
536     )
537     AC_LANG_RESTORE
538     ]
539     )
540    
541     dnl Remove support for mmap() if mprotect() does not work
542     if [[ "x$have_mmap_vm" = "xyes" ]]; then
543     case $ac_cv_mprotect_works in
544     *yes) have_mmap_vm=yes;;
545     *no) have_mmap_vm=no;;
546     esac
547     fi
548     AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm,
549     [Define if your system has a working mmap()-based memory allocator.])
550    
551     fi dnl HAVE_MMAP_VM
552    
553     dnl Check if we can mmap 0x2000 bytes from 0x0000
554     AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x2000],
555     ac_cv_can_map_lm, [
556     AC_LANG_SAVE
557     AC_LANG_CPLUSPLUS
558     AC_TRY_RUN([
559     #include "vm_alloc.cpp"
560     int main(void) { /* returns 0 if we could map the lowmem globals */
561 gbeauche 1.15 volatile char * lm = 0;
562 gbeauche 1.1 if (vm_init() < 0) exit(1);
563 gbeauche 1.15 if (vm_acquire_fixed(0, 0x2000) < 0) exit(1);
564 gbeauche 1.1 lm[0] = 'z';
565     if (vm_release((char *)lm, 0x2000) < 0) exit(1);
566     vm_exit(); exit(0);
567     }
568     ], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
569     dnl When cross-compiling, do not assume anything.
570     ac_cv_can_map_lm="guessing no"
571     )
572     AC_LANG_RESTORE
573     ]
574     )
575    
576     dnl Check signal handlers need to be reinstalled
577     AC_CACHE_CHECK([whether signal handlers need to be reinstalled],
578     ac_cv_signal_need_reinstall, [
579     AC_LANG_SAVE
580     AC_LANG_CPLUSPLUS
581     AC_TRY_RUN([
582     #include <stdlib.h>
583     #ifdef HAVE_UNISTD_H
584     #include <unistd.h>
585     #endif
586     #include <signal.h>
587     static int handled_signal = 0;
588     RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
589     int main(void) { /* returns 0 if signals need not to be reinstalled */
590     signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
591     exit(handled_signal == 2);
592     }
593     ], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
594     dnl When cross-compiling, do not assume anything.
595     ac_cv_signal_need_reinstall="guessing yes"
596     )
597     AC_LANG_RESTORE
598     ]
599     )
600     AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall",
601     [Define if your system requires signals to be reinstalled.])
602    
603     dnl Check if sigaction handlers need to be reinstalled
604     AC_CACHE_CHECK([whether sigaction handlers need to be reinstalled],
605     ac_cv_sigaction_need_reinstall, [
606     AC_LANG_SAVE
607     AC_LANG_CPLUSPLUS
608     AC_TRY_RUN([
609     #include <stdlib.h>
610     #ifdef HAVE_UNISTD_H
611     #include <unistd.h>
612     #endif
613     #include <signal.h>
614     static int handled_signal = 0;
615     RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
616     typedef RETSIGTYPE (*signal_handler)(int);
617     static signal_handler mysignal(int sig, signal_handler handler) {
618     struct sigaction old_sa;
619     struct sigaction new_sa;
620     new_sa.sa_handler = handler;
621     return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
622     }
623     int main(void) { /* returns 0 if signals need not to be reinstalled */
624     mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
625     exit(handled_signal == 2);
626     }
627     ], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
628     dnl When cross-compiling, do not assume anything.
629     ac_cv_sigaction_need_reinstall="guessing yes"
630     )
631     AC_LANG_RESTORE
632     ]
633     )
634     AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall",
635     [Define if your system requires sigactions to be reinstalled.])
636    
637     dnl Check if extended signals are supported.
638     AC_CACHE_CHECK([whether your system supports extended signal handlers],
639     ac_cv_have_extended_signals, [
640     AC_LANG_SAVE
641     AC_LANG_CPLUSPLUS
642     AC_TRY_RUN([
643     #define HAVE_SIGINFO_T 1
644     #define CONFIGURE_TEST_SIGSEGV_RECOVERY
645     #include "vm_alloc.cpp"
646     #include "sigsegv.cpp"
647     ], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
648     dnl When cross-compiling, do not assume anything.
649     ac_cv_have_extended_signals=no
650     )
651     AC_LANG_RESTORE
652     ]
653     )
654     AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
655     [Define if your system support extended signals.])
656    
657     dnl Otherwise, check for subterfuges.
658     if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
659     AC_CACHE_CHECK([whether we then have a subterfuge for your system],
660     ac_cv_have_sigcontext_hack, [
661     AC_LANG_SAVE
662     AC_LANG_CPLUSPLUS
663     AC_TRY_RUN([
664     #define HAVE_SIGCONTEXT_SUBTERFUGE 1
665     #define CONFIGURE_TEST_SIGSEGV_RECOVERY
666     #include "vm_alloc.cpp"
667     #include "sigsegv.cpp"
668     ], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
669     dnl When cross-compiling, do not assume anything.
670     ac_cv_have_sigcontext_hack=no
671     )
672     AC_LANG_RESTORE
673     ])
674     AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack",
675     [Define if we know a hack to replace siginfo_t->si_addr member.])
676     fi
677    
678     dnl Check if we can ignore the fault (instruction skipping in SIGSEGV handler)
679     AC_CACHE_CHECK([whether we can skip instruction in SIGSEGV handler],
680     ac_cv_have_skip_instruction, [
681     AC_LANG_SAVE
682     AC_LANG_CPLUSPLUS
683     AC_TRY_RUN([
684     #define HAVE_SIGSEGV_SKIP_INSTRUCTION 1
685     #define CONFIGURE_TEST_SIGSEGV_RECOVERY
686     #include "vm_alloc.cpp"
687     #include "sigsegv.cpp"
688     ], ac_cv_have_skip_instruction=yes, ac_cv_have_skip_instruction=no,
689     dnl When cross-compiling, do not assume anything.
690     ac_cv_have_skip_instruction=no
691     )
692     AC_LANG_RESTORE
693     ]
694     )
695     AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$ac_cv_have_skip_instruction",
696     [Define if we can ignore the fault (instruction skipping in SIGSEGV handler).])
697    
698     dnl Can we do Video on SEGV Signals ?
699     CAN_VOSF=no
700     if [[ "$ac_cv_have_extended_signals" = "yes" -o "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
701     CAN_VOSF=yes
702     fi
703    
704     dnl Determine the addressing mode to use
705     if [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
706     ADDRESSING_MODE="real"
707     else
708     ADDRESSING_MODE=""
709     AC_MSG_CHECKING([for the addressing mode to use])
710     for am in $ADDRESSING_TEST_ORDER; do
711     case $am in
712     real)
713     dnl Requires ability to mmap() Low Memory globals
714     if [[ "x$ac_cv_can_map_lm" = "xno" ]]; then
715     continue
716     fi
717     dnl Requires VOSF screen updates
718     if [[ "x$CAN_VOSF" = "xno" ]]; then
719     continue
720     fi
721     dnl Real addressing will probably work.
722     ADDRESSING_MODE="real"
723     WANT_VOSF=yes dnl we can use VOSF and we need it actually
724     DEFINES="$DEFINES -DREAL_ADDRESSING"
725     break
726     ;;
727     direct)
728     dnl Requires VOSF screen updates
729     if [[ "x$CAN_VOSF" = "xyes" ]]; then
730     ADDRESSING_MODE="direct"
731     WANT_VOSF=yes dnl we can use VOSF and we need it actually
732     DEFINES="$DEFINES -DDIRECT_ADDRESSING"
733     break
734     fi
735     ;;
736     banks)
737     dnl Default addressing mode
738     ADDRESSING_MODE="memory banks"
739     break
740     ;;
741     *)
742     AC_MSG_ERROR([Internal configure.in script error for $am addressing mode])
743     esac
744     done
745     AC_MSG_RESULT($ADDRESSING_MODE)
746     if [[ "x$ADDRESSING_MODE" = "x" ]]; then
747     AC_MSG_WARN([Sorry, no suitable addressing mode in $ADDRESSING_TEST_ORDER])
748     ADDRESSING_MODE="memory banks"
749     fi
750     fi
751    
752 gbeauche 1.5 dnl Banked Memory Addressing mode is not supported by the JIT compiler
753     if [[ "x$WANT_JIT" = "xyes" -a "x$ADDRESSING_MODE" = "xmemory banks" ]]; then
754     AC_MSG_ERROR([Sorry, the JIT Compiler requires Direct Addressing, at least])
755     fi
756    
757 gbeauche 1.1 dnl Enable VOSF screen updates with this feature is requested and feasible
758     if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then
759     AC_DEFINE(ENABLE_VOSF, 1, [Define if using video enabled on SEGV signals.])
760     else
761     WANT_VOSF=no
762     fi
763    
764     dnl Check for GAS.
765     HAVE_GAS=no
766     AC_MSG_CHECKING(for GAS .p2align feature)
767     cat >conftest.S << EOF
768     .text
769     .p2align 5
770     EOF
771     if $CC conftest.S -c -o conftest.o >/dev/null 2>&1 ; then HAVE_GAS=yes; fi
772     AC_MSG_RESULT($HAVE_GAS)
773    
774     dnl Check for GCC 2.7 or higher.
775     HAVE_GCC27=no
776     AC_MSG_CHECKING(for GCC 2.7 or higher)
777 cebix 1.17 AC_EGREP_CPP(xyes,
778 gbeauche 1.1 [#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
779 cebix 1.17 xyes
780 gbeauche 1.1 #endif
781     ], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
782    
783     dnl Check for GCC 3.0 or higher.
784     HAVE_GCC30=no
785     AC_MSG_CHECKING(for GCC 3.0 or higher)
786 cebix 1.17 AC_EGREP_CPP(xyes,
787 gbeauche 1.1 [#if __GNUC__ >= 3
788 cebix 1.17 xyes
789 gbeauche 1.1 #endif
790     ], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
791    
792     dnl Set "-fomit-frame-pointer" on i386 GCC 2.7 or higher.
793     dnl Also set "-fno-exceptions" for C++ because exception handling requires
794     dnl the frame pointer.
795     if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
796     CFLAGS="$CFLAGS -fomit-frame-pointer"
797     CXXFLAGS="$CXXFLAGS -fomit-frame-pointer -fno-exceptions"
798     fi
799    
800     dnl (gb) Do not merge constants since it breaks fpu/fpu_x86.cpp.
801     dnl As of 2001/08/02, this affects the following compilers:
802     dnl Official: probably gcc-3.1 (mainline CVS)
803     dnl Mandrake: gcc-2.96 >= 0.59mdk, gcc-3.0.1 >= 0.1mdk
804     dnl Red Hat : gcc-2.96 >= 89, gcc-3.0 >= 1
805     if [[ "x$HAVE_GCC27" = "xyes" ]]; then
806     SAVED_CXXFLAGS="$CXXFLAGS"
807     CXXFLAGS="$CXXFLAGS -fno-merge-constants"
808     AC_CACHE_CHECK([whether GCC supports constants merging], ac_cv_gcc_constants_merging, [
809     AC_LANG_SAVE
810     AC_LANG_CPLUSPLUS
811     AC_TRY_COMPILE([],[],[ac_cv_gcc_constants_merging=yes],[ac_cv_gcc_constants_merging=no])
812     AC_LANG_RESTORE
813     ])
814     if [[ "x$ac_cv_gcc_constants_merging" != "xyes" ]]; then
815     CXXFLAGS="$SAVED_CXXFLAGS"
816     fi
817     fi
818    
819     dnl Select appropriate CPU source and REGPARAM define.
820     ASM_OPTIMIZATIONS=none
821     CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
822 gbeauche 1.5
823     dnl (gb) JITSRCS will be emptied later if the JIT is not available
824     dnl Other platforms should define their own set of noflags file variants
825     CAN_JIT=no
826     JITSRCS="compemu1.cpp compemu2.cpp compemu3.cpp compemu4.cpp compemu5.cpp compemu6.cpp compemu7.cpp compemu8.cpp"
827    
828 gbeauche 1.11 if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
829 gbeauche 1.1 dnl i386 CPU
830 gbeauche 1.7 DEFINES="$DEFINES -DUNALIGNED_PROFITABLE -DREGPARAM=\"__attribute__((regparm(3)))\""
831 gbeauche 1.1 if [[ "x$HAVE_GAS" = "xyes" ]]; then
832     ASM_OPTIMIZATIONS=i386
833 gbeauche 1.7 DEFINES="$DEFINES -DX86_ASSEMBLY -DOPTIMIZED_FLAGS -DSAHF_SETO_PROFITABLE"
834 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 $JITSRCS"
835 gbeauche 1.11 CAN_JIT=yes
836 gbeauche 1.13 fi
837     elif [[ "x$HAVE_GCC30" = "xyes" -a "x$HAVE_X86_64" = "xyes" ]]; then
838     dnl x86-64 CPU
839     DEFINES="$DEFINES -DUNALIGNED_PROFITABLE"
840     if [[ "x$HAVE_GAS" = "xyes" ]]; then
841     ASM_OPTIMIZATIONS="x86-64"
842     DEFINES="$DEFINES -DX86_64_ASSEMBLY -DOPTIMIZED_FLAGS"
843 gbeauche 1.1 fi
844     elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
845     dnl SPARC CPU
846     case "$target_os" in
847     solaris*)
848     AC_MSG_CHECKING(SPARC CPU architecture)
849     SPARC_TYPE=`Solaris/which_sparc`
850     AC_MSG_RESULT($SPARC_TYPE)
851     case "$SPARC_TYPE" in
852     SPARC_V8)
853     ASM_OPTIMIZATIONS="SPARC V8 architecture"
854     DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
855     CFLAGS="$CFLAGS -Wa,-Av8"
856     CXXFLAGS="$CXXFLAGS -Wa,-Av8"
857     ;;
858     SPARC_V9)
859     ASM_OPTIMIZATIONS="SPARC V9 architecture"
860     DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
861     CFLAGS="$CFLAGS -Wa,-Av9"
862     CXXFLAGS="$CXXFLAGS -Wa,-Av9"
863     ;;
864     esac
865     ;;
866     esac
867     elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
868     dnl Native m68k, no emulation
869     CPUINCLUDES="-I../native_cpu"
870     CPUSRCS="asm_support.s"
871     fi
872    
873 gbeauche 1.5 dnl Enable JIT compiler, if possible.
874     if [[ "x$WANT_JIT" = "xyes" -a "x$CAN_JIT" ]]; then
875     JITSRCS="$JITSRCS ../uae_cpu/compiler/compemu_support.cpp ../uae_cpu/compiler/compemu_fpp.cpp compstbl.o cpustbl_nf.o"
876     DEFINES="$DEFINES -DUSE_JIT -DUSE_JIT_FPU"
877    
878     if [[ "x$WANT_JIT_DEBUG" = "xyes" ]]; then
879     if [[ "x$WANT_MON" = "xyes" ]]; then
880     DEFINES="$DEFINES -DJIT_DEBUG=1"
881     else
882     AC_MSG_WARN([cxmon not found, ignoring --enable-jit-debug])
883     WANT_JIT_DEBUG=no
884     fi
885     fi
886 gbeauche 1.8
887     dnl IEEE core is the only FPU emulator to use with the JIT compiler
888     case $FPE_CORE_TEST_ORDER in
889     ieee*) ;;
890     *) AC_MSG_WARN([Forcing use of the IEEE FPU core, as the JIT compiler supports only this one.]) ;;
891     esac
892     FPE_CORE_TEST_ORDER="ieee"
893 gbeauche 1.5 else
894     WANT_JIT=no
895     WANT_JIT_DEBUG=no
896     JITSRCS=""
897     fi
898    
899 gbeauche 1.1 dnl Utility macro used by next two tests.
900     dnl AC_EXAMINE_OBJECT(C source code,
901     dnl commands examining object file,
902     dnl [commands to run if compile failed]):
903     dnl
904     dnl Compile the source code to an object file; then convert it into a
905     dnl printable representation. All unprintable characters and
906     dnl asterisks (*) are replaced by dots (.). All white space is
907     dnl deleted. Newlines (ASCII 0x10) in the input are preserved in the
908     dnl output, but runs of newlines are compressed to a single newline.
909     dnl Finally, line breaks are forcibly inserted so that no line is
910     dnl longer than 80 columns and the file ends with a newline. The
911     dnl result of all this processing is in the file conftest.dmp, which
912     dnl may be examined by the commands in the second argument.
913     dnl
914     AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
915     [AC_LANG_SAVE
916     AC_LANG_C
917     dnl Next bit cribbed from AC_TRY_COMPILE.
918     cat > conftest.$ac_ext <<EOF
919     [#line __oline__ "configure"
920     #include "confdefs.h"
921     $1
922     ]EOF
923     if AC_TRY_EVAL(ac_compile); then
924     od -c conftest.o |
925     sed ['s/^[0-7]*[ ]*/ /
926     s/\*/./g
927     s/ \\n/*/g
928     s/ [0-9][0-9][0-9]/./g
929     s/ \\[^ ]/./g'] |
930     tr -d '
931     ' | tr -s '*' '
932     ' | fold | sed '$a\
933     ' > conftest.dmp
934     $2
935     ifelse($3, , , else
936     $3
937     )dnl
938     fi
939     rm -rf conftest*
940     AC_LANG_RESTORE])
941    
942     dnl Floating point format probe.
943     dnl The basic concept is the same as the above: grep the object
944     dnl file for an interesting string. We have to watch out for
945     dnl rounding changing the values in the object, however; this is
946     dnl handled by ignoring the least significant byte of the float.
947     dnl
948     dnl Does not know about VAX G-float or C4x idiosyncratic format.
949     dnl It does know about PDP-10 idiosyncratic format, but this is
950     dnl not presently supported by GCC. S/390 "binary floating point"
951     dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
952     dnl as ASCII?)
953     dnl
954     AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
955     [AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
956     [gcc_AC_EXAMINE_OBJECT(
957     [/* This will not work unless sizeof(double) == 8. */
958     extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
959    
960     /* This structure must have no internal padding. */
961     struct possibility {
962     char prefix[8];
963     double candidate;
964     char postfix[8];
965     };
966    
967     #define C(cand) { "\nformat:", cand, ":tamrof\n" }
968     struct possibility table [] =
969     {
970     C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
971     C( 3.53802595280598432000e+18), /* D__float - VAX */
972     C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
973     C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
974     C(-5.22995989424860458374e+10) /* IBMHEXFP - s/390 format, EBCDIC */
975     };],
976     [if grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
977     ac_cv_c_float_format='IEEE (big-endian)'
978     elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
979     ac_cv_c_float_format='IEEE (big-endian)'
980     elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
981     ac_cv_c_float_format='IEEE (little-endian)'
982     elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
983     ac_cv_c_float_format='IEEE (little-endian)'
984     elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
985     ac_cv_c_float_format='VAX D-float'
986     elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
987     ac_cv_c_float_format='PDP-10'
988     elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
989     ac_cv_c_float_format='IBM 370 hex'
990     else
991     AC_MSG_ERROR(Unknown floating point format)
992     fi],
993     [AC_MSG_ERROR(compile failed)])
994     ])
995     # IEEE is the default format. If the float endianness isn't the same
996     # as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
997     # (which is a tristate: yes, no, default). This is only an issue with
998     # IEEE; the other formats are only supported by a few machines each,
999     # all with the same endianness.
1000     format=IEEE_FLOAT_FORMAT
1001     fbigend=
1002     case $ac_cv_c_float_format in
1003     'IEEE (big-endian)' )
1004     if test $ac_cv_c_bigendian = no; then
1005     fbigend=1
1006     fi
1007     ;;
1008     'IEEE (little-endian)' )
1009     if test $ac_cv_c_bigendian = yes; then
1010     fbigend=0
1011     fi
1012     ;;
1013     'VAX D-float' )
1014     format=VAX_FLOAT_FORMAT
1015     ;;
1016     'PDP-10' )
1017     format=PDP10_FLOAT_FORMAT
1018     ;;
1019     'IBM 370 hex' )
1020     format=IBM_FLOAT_FORMAT
1021     ;;
1022     esac
1023     AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
1024     [Define to the floating point format of the host machine.])
1025     if test -n "$fbigend"; then
1026     AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
1027     [Define to 1 if the host machine stores floating point numbers in
1028     memory with the word containing the sign bit at the lowest address,
1029     or to 0 if it does it the other way around.
1030    
1031     This macro should not be defined if the ordering is the same as for
1032     multi-word integers.])
1033     fi
1034     ])
1035    
1036     dnl Select appropriate FPU source.
1037     gcc_AC_C_FLOAT_FORMAT
1038     AC_CHECK_HEADERS(ieee754.h ieeefp.h floatingpoint.h nan.h)
1039    
1040     for fpe in $FPE_CORE_TEST_ORDER; do
1041     case $fpe in
1042     ieee)
1043 gbeauche 1.2 case $ac_cv_c_float_format in
1044     IEEE*)
1045 gbeauche 1.1 FPE_CORE="IEEE fpu core"
1046     DEFINES="$DEFINES -DFPU_IEEE"
1047     FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
1048 gbeauche 1.4 dnl Math functions not mandated by C99 standard
1049     AC_CHECK_FUNCS(isnanl isinfl)
1050     dnl Math functions required by C99 standard, but probably not
1051     dnl implemented everywhere. In that case, we fall back to the
1052     dnl regular variant for doubles.
1053     AC_CHECK_FUNCS(logl log10l expl powl fabsl sqrtl)
1054     AC_CHECK_FUNCS(sinl cosl tanl sinhl coshl tanhl)
1055     AC_CHECK_FUNCS(asinl acosl atanl asinhl acoshl atanhl)
1056     AC_CHECK_FUNCS(floorl ceill)
1057 gbeauche 1.1 break
1058 gbeauche 1.2 ;;
1059     esac
1060 gbeauche 1.1 ;;
1061     x86)
1062     if [[ ":$HAVE_GCC27:$HAVE_I386:$HAVE_GAS:" = ":yes:yes:yes:" ]]; then
1063     FPE_CORE="i387 fpu core"
1064     DEFINES="$DEFINES -DFPU_X86"
1065     FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
1066     break
1067     fi
1068     ;;
1069     uae)
1070     FPE_CORE="uae fpu core"
1071     DEFINES="$DEFINES -DFPU_UAE"
1072     FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
1073     break
1074     ;;
1075     *)
1076     AC_MSG_ERROR([Internal configure.in script error for $fpe fpu core])
1077     ;;
1078     esac
1079     done
1080     if [[ "x$FPE_CORE" = "x" ]]; then
1081     AC_MSG_ERROR([Sorry, no suitable FPU core found in $FPE_CORE_TEST_ORDER])
1082     fi
1083    
1084     dnl Check for certain math functions
1085     AC_CHECK_FUNCS(atanh)
1086 gbeauche 1.4 AC_CHECK_FUNCS(isnan isinf finite isnormal signbit)
1087 gbeauche 1.1
1088     dnl UAE CPU sources for all non-m68k-native architectures.
1089     if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
1090     CPUINCLUDES="-I../uae_cpu"
1091 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 $JITSRCS"
1092 gbeauche 1.1 fi
1093    
1094     dnl Remove the "-g" option if set for GCC.
1095     if [[ "x$HAVE_GCC27" = "xyes" ]]; then
1096     CFLAGS=`echo $CFLAGS | sed -e 's/-g//g'`
1097     CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g//g'`
1098     fi
1099    
1100 gbeauche 1.14 dnl Or if we have -IPA (MIPSPro compilers)
1101     if [[ "x$HAVE_IPA" = "xyes" ]]; then
1102     CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1103     CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1104 gbeauche 1.1 CXXFLAGS="-LANG:std $CXXFLAGS"
1105 gbeauche 1.14 LDFLAGS="$LDFLAGS -O3 -OPT:Olimit=0 -IPA"
1106 gbeauche 1.1 fi
1107    
1108     dnl Generate Makefile.
1109     AC_SUBST(DEFINES)
1110     AC_SUBST(SYSSRCS)
1111     AC_SUBST(CPUINCLUDES)
1112     AC_SUBST(CPUSRCS)
1113 cebix 1.16 AC_CONFIG_FILES([Makefile])
1114     AC_OUTPUT
1115 gbeauche 1.1
1116     dnl Print summary.
1117     echo
1118     echo Basilisk II configuration summary:
1119     echo
1120     echo XFree86 DGA support .................... : $WANT_XF86_DGA
1121     echo XFree86 VidMode support ................ : $WANT_XF86_VIDMODE
1122     echo fbdev DGA support ...................... : $WANT_FBDEV_DGA
1123     echo Enable video on SEGV signals ........... : $WANT_VOSF
1124     echo ESD sound support ...................... : $WANT_ESD
1125     echo GTK user interface ..................... : $WANT_GTK
1126     echo mon debugger support ................... : $WANT_MON
1127     echo Running m68k code natively ............. : $WANT_NATIVE_M68K
1128 gbeauche 1.5 echo Use JIT compiler ....................... : $WANT_JIT
1129     echo JIT debug mode ......................... : $WANT_JIT_DEBUG
1130 gbeauche 1.1 echo Floating-Point emulation core .......... : $FPE_CORE
1131     echo Assembly optimizations ................. : $ASM_OPTIMIZATIONS
1132     echo Addressing mode ........................ : $ADDRESSING_MODE
1133     echo
1134     echo "Configuration done. Now type \"make\" (or \"gmake\")."