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root/cebix/BasiliskII/src/Unix/configure.ac
Revision: 1.84
Committed: 2012-06-17T23:15:10Z (12 years, 4 months ago) by asvitkine
Branch: MAIN
CVS Tags: HEAD
Changes since 1.83: +1 -0 lines
Log Message:
another try to get sshpty.c compiling on bsd

File Contents

# Content
1 dnl Process this file with autoconf to produce a configure script.
2 dnl Written in 2002 by Christian Bauer et al.
3
4 AC_INIT([Basilisk II], 1.0, [Christian.Bauer@uni-mainz.de], BasiliskII)
5 AC_CONFIG_SRCDIR(main_unix.cpp)
6 AC_PREREQ(2.52)
7 AC_CONFIG_HEADER(config.h)
8
9 AC_USE_SYSTEM_EXTENSIONS
10
11 dnl Aliases for PACKAGE and VERSION macros.
12 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE_NAME", [Define this program name.])
13 AC_DEFINE_UNQUOTED(VERSION, "$PACKAGE_VERSION", [Define this program version.])
14
15 dnl Some systems do not put corefiles in the currect directory, avoid saving
16 dnl cores for the configure tests since some are intended to dump core.
17 ulimit -c 0
18
19 AC_ARG_ENABLE(standalone-gui,[ --enable-standalone-gui enable a standalone GUI prefs editor [default=no]], [WANT_STANDALONE_GUI=$enableval], [WANT_STANDALONE_GUI=no])
20
21 dnl Video options.
22 AC_ARG_ENABLE(xf86-dga, [ --enable-xf86-dga use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
23 AC_ARG_ENABLE(xf86-vidmode, [ --enable-xf86-vidmode use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
24 AC_ARG_ENABLE(fbdev-dga, [ --enable-fbdev-dga use direct frame buffer access via /dev/fb [default=yes]], [WANT_FBDEV_DGA=$enableval], [WANT_FBDEV_DGA=yes])
25 AC_ARG_ENABLE(vosf, [ --enable-vosf enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
26
27 dnl SDL options.
28 AC_ARG_ENABLE(sdl-static, [ --enable-sdl-static use SDL static libraries for linking [default=no]], [WANT_SDL_STATIC=$enableval], [WANT_SDL_STATIC=no])
29 AC_ARG_ENABLE(sdl-video, [ --enable-sdl-video use SDL for video graphics [default=no]], [WANT_SDL_VIDEO=$enableval], [WANT_SDL_VIDEO=no])
30 AC_ARG_ENABLE(sdl-audio, [ --enable-sdl-audio use SDL for audio [default=no]], [WANT_SDL_AUDIO=$enableval], [WANT_SDL_AUDIO=no])
31 AC_ARG_ENABLE(sdl-framework, [ --enable-sdl-framework use SDL framework [default=no]], [WANT_SDL_FRAMEWORK=$enableval], [WANT_SDL_FRAMEWORK=no])
32 AC_ARG_ENABLE(sdl-framework-prefix, [ --enable-sdl-framework-prefix=PFX default=/Library/Frameworks], [SDL_FRAMEWORK="$enableval"], [SDL_FRAMEWORK=/Library/Frameworks])
33
34 dnl JIT compiler options.
35 AC_ARG_ENABLE(jit-compiler, [ --enable-jit-compiler enable JIT compiler [default=no]], [WANT_JIT=$enableval], [WANT_JIT=no])
36 AC_ARG_ENABLE(jit-debug, [ --enable-jit-debug activate native code disassemblers [default=no]], [WANT_JIT_DEBUG=$enableval], [WANT_JIT_DEBUG=no])
37
38 dnl FPU emulation core.
39 AC_ARG_ENABLE(fpe,
40 [ --enable-fpe=FPE specify which fpu emulator to use [default=auto]],
41 [ case "$enableval" in
42 dnl default is always ieee, if architecture has this fp format
43 auto) FPE_CORE_TEST_ORDER="ieee uae";;
44 ieee) FPE_CORE_TEST_ORDER="ieee";;
45 uae) FPE_CORE_TEST_ORDER="uae";;
46 x86) FPE_CORE_TEST_ORDER="x86";;
47 *) AC_MSG_ERROR([--enable-fpe takes only one of the following values: auto, x86, ieee, uae]);;
48 esac
49 ],
50 [ FPE_CORE_TEST_ORDER="ieee uae"
51 ])
52
53 dnl Addressing modes.
54 AC_ARG_ENABLE(addressing,
55 [ --enable-addressing=AM specify the addressing mode to use [default=fastest]],
56 [ case "$enableval" in
57 real) ADDRESSING_TEST_ORDER="real";;
58 direct) ADDRESSING_TEST_ORDER="direct";;
59 banks) ADDRESSING_TEST_ORDER="banks";;
60 fastest)ADDRESSING_TEST_ORDER="direct banks";;
61 *) AC_MSG_ERROR([--enable-addressing takes only one of the following values: fastest, real, direct, banks]);;
62 esac
63 ],
64 [ ADDRESSING_TEST_ORDER="direct banks"
65 ])
66
67 dnl External packages.
68 AC_ARG_WITH(esd, [ --with-esd support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
69 AC_ARG_WITH(gtk, [ --with-gtk use GTK user interface [default=yes]],
70 [case "$withval" in
71 gtk1) WANT_GTK="gtk";;
72 gtk|gtk2) WANT_GTK="$withval";;
73 yes) WANT_GTK="gtk2 gtk";;
74 *) WANT_GTK="no";;
75 esac],
76 [WANT_GTK="gtk2 gtk"])
77 AC_ARG_WITH(mon, [ --with-mon use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
78
79 AC_ARG_WITH(bincue,
80 AS_HELP_STRING([--with-bincue], [Allow cdrom image files in bin/cue mode]))
81
82 AC_ARG_WITH(libvhd,
83 AS_HELP_STRING([--with-libvhd], [Enable VHD disk images]))
84
85
86 dnl Canonical system information.
87 AC_CANONICAL_HOST
88 AC_CANONICAL_TARGET
89
90 dnl Target OS type (target is host if not cross-compiling).
91 case "$target_os" in
92 linux*) OS_TYPE=linux;;
93 netbsd*) OS_TYPE=netbsd;;
94 freebsd*) OS_TYPE=freebsd;;
95 solaris*) OS_TYPE=solaris;;
96 darwin*) OS_TYPE=darwin;;
97 *) OS_TYPE=`echo $target_os | sed -e 's/-/_/g' | sed -e 's/\./_/g'`;;
98 esac
99 DEFINES="$DEFINES -DOS_$OS_TYPE"
100
101 dnl Target CPU type.
102 HAVE_I386=no
103 HAVE_M68K=no
104 HAVE_SPARC=no
105 HAVE_POWERPC=no
106 HAVE_X86_64=no
107 case "$target_cpu" in
108 i386* | i486* | i586* | i686* | i786* ) HAVE_I386=yes;;
109 m68k* ) HAVE_M68K=yes;;
110 sparc* ) HAVE_SPARC=yes;;
111 powerpc* ) HAVE_POWERPC=yes;;
112 x86_64* ) HAVE_X86_64=yes;;
113 esac
114
115 dnl Check if we should really be assuming x86_64 even if we detected HAVE_I386 above.
116 if [[ "x$HAVE_I386" = "xyes" ]]; then
117 AC_TRY_RUN([
118 int main(void) {
119 #if defined(__x86_64__)
120 return 0;
121 #else
122 return 1;
123 #endif
124 }
125 ], [
126 HAVE_I386=no
127 HAVE_X86_64=yes
128 ])
129 fi
130
131 dnl Checks for programs.
132 AC_PROG_CC
133 AC_PROG_CC_C_O
134 AC_PROG_CPP
135 AC_PROG_CXX
136 AC_PROG_MAKE_SET
137 AC_PROG_INSTALL
138 AC_PROG_EGREP
139
140 dnl We use mon if possible.
141 MONSRCS=
142 if [[ "x$WANT_MON" = "xyes" ]]; then
143 AC_MSG_CHECKING(for mon)
144 mon_srcdir=../../../mon/src
145 if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
146 AC_MSG_RESULT(yes)
147 AC_DEFINE(ENABLE_MON, 1, [Define if using "mon".])
148 MONSRCS="$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 $mon_srcdir/disass/mips-dis.c $mon_srcdir/disass/mips-opc.c $mon_srcdir/disass/mips16-opc.c"
149 CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
150 AC_CHECK_LIB(ncurses, tgetent, ,
151 [AC_CHECK_LIB(termcap, tgetent, ,
152 [AC_CHECK_LIB(termlib, tgetent, ,
153 [AC_CHECK_LIB(terminfo, tgetent, ,
154 [AC_CHECK_LIB(Hcurses, tgetent, ,
155 [AC_CHECK_LIB(curses, tgetent)])])])])])
156 AC_CHECK_LIB(readline, readline)
157 else
158 AC_MSG_RESULT(no)
159 AC_MSG_WARN([Could not find mon, ignoring --with-mon.])
160 WANT_MON=no
161 fi
162 fi
163
164 dnl Checks for libraries.
165 AC_CHECK_LIB(posix4, sem_init)
166 AC_CHECK_LIB(rt, timer_create)
167 AC_CHECK_LIB(rt, shm_open)
168 AC_CHECK_LIB(m, cos)
169
170 dnl AC_CHECK_SDLFRAMEWORK($1=NAME, $2=INCLUDES)
171 dnl AC_TRY_LINK uses main() but SDL needs main to take args,
172 dnl therefore main is undefined with #undef.
173 dnl Framework can be in an custom location.
174 AC_DEFUN([AC_CHECK_SDLFRAMEWORK], [
175 AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])
176 AC_CACHE_CHECK([whether compiler supports framework $1],
177 ac_Framework, [
178 saved_LIBS="$LIBS"
179 LIBS="$LIBS -framework $1"
180 if [[ "x$SDL_FRAMEWORK" != "x/Library/Frameworks" ]]; then
181 if [[ "x$SDL_FRAMEWORK" != "x/System/Library/Frameworks" ]]; then
182 LIBS="$saved_LIBS -F$SDL_FRAMEWORK -framework $1"
183 fi
184 fi
185 saved_CPPFLAGS="$CPPFLAGS"
186 CPPFLAGS="$CPPFLAGS -I$SDL_FRAMEWORK/SDL.framework/Headers"
187 AC_TRY_LINK(
188 [$2
189 #undef main], [],
190 [AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no);
191 LIBS="$saved_LIBS"; CPPFLAGS="$saved_CPPFLAGS"]
192 )
193 ])
194 AS_IF([test AS_VAR_GET(ac_Framework) = yes],
195 [AC_DEFINE(AS_TR_CPP(HAVE_FRAMEWORK_$1), 1, [Define if framework $1 is available.])]
196 )
197 AS_VAR_POPDEF([ac_Framework])
198 ])
199
200 dnl Do we need SDL?
201 WANT_SDL=no
202 if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
203 WANT_SDL=yes
204 WANT_XF86_DGA=no
205 WANT_XF86_VIDMODE=no
206 WANT_FBDEV_DGA=no
207 SDL_SUPPORT="$SDL_SUPPORT video"
208 fi
209 if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; then
210 WANT_SDL=yes
211 SDL_SUPPORT="$SDL_SUPPORT audio"
212 fi
213 if [[ "x$WANT_SDL" = "xyes" ]]; then
214 if [[ "x$WANT_SDL_FRAMEWORK" = "xyes" ]]; then
215 AC_CHECK_SDLFRAMEWORK(SDL, [#include <SDL.h>])
216 else
217 ac_cv_framework_SDL=no
218 fi
219 if [[ "x$ac_cv_framework_SDL" = "xno" ]]; then
220 AC_PATH_PROG(sdl_config, "sdl-config")
221 if [[ -n "$sdl_config" ]]; then
222 case $target_os in
223 # Special treatment for Cygwin so that we can still use the POSIX layer
224 *cygwin*)
225 sdl_cflags="-I`$sdl_config --prefix`/include/SDL"
226 sdl_libs="-L`$sdl_config --exec-prefix`/lib -lSDL"
227 ;;
228 *)
229 sdl_cflags=`$sdl_config --cflags`
230 if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
231 sdl_libs=`$sdl_config --static-libs`
232 else
233 sdl_libs=`$sdl_config --libs`
234 fi
235 ;;
236 esac
237 CFLAGS="$CFLAGS $sdl_cflags"
238 CXXFLAGS="$CXXFLAGS $sdl_cflags"
239 LIBS="$LIBS $sdl_libs"
240 else
241 WANT_SDL=no
242 fi
243 fi
244 SDL_SUPPORT=`echo "$SDL_SUPPORT" | sed -e "s/^ //"`
245 else
246 SDL_SUPPORT="none"
247 fi
248
249 dnl We need X11, if not using SDL.
250 if [[ "x$WANT_SDL" = "xno" ]]; then
251 AC_PATH_XTRA
252 if [[ "x$no_x" = "xyes" ]]; then
253 AC_MSG_ERROR([You need X11 to run Basilisk II.])
254 fi
255 CFLAGS="$CFLAGS $X_CFLAGS"
256 CXXFLAGS="$CXXFLAGS $X_CFLAGS"
257 LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS"
258 fi
259
260 dnl BINCUE
261 AS_IF([test "x$with_bincue" = "xyes" ], [have_bincue=yes], [have_bincue=no])
262 AS_IF([test "x$have_bincue" = "xyes" ], [
263 if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; then
264 DEFINES="$DEFINES -DBINCUE"
265 else
266 AC_MSG_ERROR([You need SDL Audio to use BINCUE support.])
267 fi
268 ])
269
270 dnl LIBVHD
271 AS_IF([test "x$with_libvhd" = "xyes" ], [have_libvhd=yes], [have_libvhd=no])
272 AS_IF([test "x$have_libvhd" = "xyes" ], [
273 CPPFLAGS="$CPPFLAGS -DHAVE_LIBVHD"
274 LIBS="$LIBS -lvhd"
275 case $target_os in
276 linux*)
277 LIBS="$LIBS -luuid"
278 esac
279 AC_CHECK_LIB(vhd, vhd_open)
280 AC_CHECK_LIB(vhd, vhd_io_read)
281 AC_CHECK_LIB(vhd, vhd_io_write)
282 AC_CHECK_LIB(vhd, vhd_close)
283 ])
284
285
286
287 dnl We want pthreads. Try libpthread first, then libc_r (FreeBSD), then PTL.
288 HAVE_PTHREADS=yes
289 AC_CHECK_LIB(pthread, pthread_create, , [
290 AC_CHECK_LIB(c_r, pthread_create, , [
291 AC_CHECK_LIB(PTL, pthread_create, , [
292 HAVE_PTHREADS=no
293 ])
294 ])
295 ])
296 if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
297 AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
298 fi
299 AC_CHECK_FUNCS(pthread_cond_init)
300 AC_CHECK_FUNCS(pthread_cancel pthread_testcancel)
301 AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
302 AC_CHECK_FUNCS(pthread_mutexattr_settype)
303 AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
304
305 dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
306 SEMSRC=
307 AC_CHECK_FUNCS(sem_init, , [
308 if test "x$HAVE_PTHREADS" = "xyes"; then
309 SEMSRC=posix_sem.cpp
310 fi
311 ])
312
313 dnl We use DGA (XFree86 or fbdev) if possible.
314 if [[ "x$WANT_XF86_DGA" = "xyes" ]]; then
315 AC_CHECK_LIB(Xxf86dga, XF86DGAQueryExtension, [
316 AC_DEFINE(ENABLE_XF86_DGA, 1, [Define if using XFree86 DGA extension.])
317 LIBS="$LIBS -lXxf86dga"
318 if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
319 AC_MSG_WARN([Cannot have both --enable-xf86-dga and --enable-fbdev-dga, ignoring --enable-fbdev-dga.])
320 WANT_FBDEV_DGA=no
321 fi
322 ], [
323 AC_MSG_WARN([Could not find XFree86 DGA extension, ignoring --enable-xf86-dga.])
324 WANT_XF86_DGA=no
325 ])
326 fi
327 if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
328 AC_DEFINE(ENABLE_FBDEV_DGA, 1, [Define if using DGA with framebuffer device.])
329 fi
330
331 dnl We use XFree86 VidMode if possible.
332 if [[ "x$WANT_XF86_VIDMODE" = "xyes" ]]; then
333 AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryExtension, [
334 AC_DEFINE(ENABLE_XF86_VIDMODE, 1, [Define if using XFree86 DGA extension.])
335 LIBS="$LIBS -lXxf86vm"
336 ], [
337 AC_MSG_WARN([Could not find XFree86 VidMode extension, ignoring --enable-xf86-vidmode.])
338 WANT_XF86_VIDMODE=no
339 ])
340 fi
341
342 dnl We use GTK+ if possible.
343 UISRCS=../dummy/prefs_editor_dummy.cpp
344 case "x$WANT_GTK" in
345 xgtk2*)
346 AM_PATH_GTK_2_0(1.3.15, [
347 GUI_CFLAGS="$GTK_CFLAGS"
348 GUI_LIBS="$GTK_LIBS"
349 WANT_GTK=gtk2
350 ], [
351 case "x${WANT_GTK}x" in
352 *gtkx)
353 AC_MSG_WARN([Could not find GTK+ 2.0, trying with GTK+ 1.2.])
354 WANT_GTK=gtk
355 ;;
356 *)
357 AC_MSG_WARN([Could not find GTK+, disabling user interface.])
358 WANT_GTK=no
359 ;;
360 esac
361 ])
362 ;;
363 esac
364 if [[ "x$WANT_GTK" = "xgtk" ]]; then
365 AM_PATH_GTK(1.2.0, [
366 GUI_CFLAGS="$GTK_CFLAGS"
367 GUI_LIBS="$GTK_LIBS"
368 dnl somehow, <gnome-i18n.h> would redefine gettext() to nothing if
369 dnl ENABLE_NLS is not set, thusly conflicting with C++ <string> which
370 dnl includes <libintl.h>
371 AM_GNU_GETTEXT
372 B2_PATH_GNOMEUI([
373 AC_DEFINE(HAVE_GNOMEUI, 1, [Define if libgnomeui is available.])
374 GUI_CFLAGS="$GUI_CFLAGS $GNOMEUI_CFLAGS"
375 GUI_LIBS="$GUI_LIBS $GNOMEUI_LIBS"
376 ], [])
377 ], [
378 AC_MSG_WARN([Could not find GTK+, disabling user interface.])
379 WANT_GTK=no
380 ])
381 fi
382 if [[ "x$WANT_GTK" != "xno" -a "x$WANT_STANDALONE_GUI" = "xno" ]]; then
383 AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
384 UISRCS=prefs_editor_gtk.cpp
385 fi
386 AC_SUBST(GUI_CFLAGS)
387 AC_SUBST(GUI_LIBS)
388
389 dnl Build external GUI if requested.
390 if [[ "$WANT_STANDALONE_GUI" != "yes" ]]; then
391 WANT_STANDALONE_GUI=no
392 fi
393 if [[ "$WANT_GTK" = "no" ]]; then
394 WANT_STANDALONE_GUI=no
395 fi
396 AC_SUBST(STANDALONE_GUI, [$WANT_STANDALONE_GUI])
397
398 dnl We use ESD if possible.
399 if [[ "x$WANT_ESD" = "xyes" ]]; then
400 AM_PATH_ESD(0.2.8, [
401 AC_DEFINE(ENABLE_ESD, 1, [Define is using ESD.])
402 CFLAGS="$CFLAGS $ESD_CFLAGS"
403 CXXFLAGS="$CXXFLAGS $ESD_CFLAGS"
404 LIBS="$LIBS $ESD_LIBS"
405 ], [
406 AC_MSG_WARN([Could not find ESD, disabling ESD support.])
407 WANT_ESD=no
408 ])
409 fi
410
411 dnl We use 64-bit file size support if possible.
412 AC_SYS_LARGEFILE
413
414 dnl Checks for header files.
415 AC_HEADER_STDC
416 AC_CHECK_HEADERS(stdlib.h stdint.h)
417 AC_CHECK_HEADERS(unistd.h fcntl.h sys/types.h sys/time.h sys/mman.h mach/mach.h)
418 AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
419 AC_CHECK_HEADERS(sys/socket.h sys/ioctl.h sys/filio.h sys/bitypes.h sys/wait.h)
420 AC_CHECK_HEADERS(sys/poll.h sys/select.h)
421 AC_CHECK_HEADERS(arpa/inet.h)
422 AC_CHECK_HEADERS(linux/if.h linux/if_tun.h net/if.h net/if_tun.h, [], [], [
423 #ifdef HAVE_SYS_TYPES_H
424 #include <sys/types.h>
425 #endif
426 #ifdef HAVE_SYS_SOCKET_H
427 #include <sys/socket.h>
428 #endif
429 ])
430 AC_CHECK_HEADERS(AvailabilityMacros.h)
431 AC_CHECK_HEADERS(IOKit/storage/IOBlockStorageDevice.h)
432 AC_CHECK_HEADERS(sys/stropts.h stropts.h)
433
434 dnl Checks for typedefs, structures, and compiler characteristics.
435 AC_C_BIGENDIAN
436 AC_C_CONST
437 AC_C_INLINE
438 AC_CHECK_SIZEOF(short, 2)
439 AC_CHECK_SIZEOF(int, 4)
440 AC_CHECK_SIZEOF(long, 4)
441 AC_CHECK_SIZEOF(long long, 8)
442 AC_CHECK_SIZEOF(float, 4)
443 AC_CHECK_SIZEOF(double, 8)
444 AC_CHECK_SIZEOF(long double, 12)
445 AC_CHECK_SIZEOF(void *, 4)
446 AC_TYPE_OFF_T
447 AC_CHECK_TYPES(loff_t)
448 AC_CHECK_TYPES(caddr_t)
449 AC_TYPE_SIZE_T
450 AC_TYPE_SIGNAL
451 AC_HEADER_TIME
452 AC_STRUCT_TM
453
454 dnl Check whether sys/socket.h defines type socklen_t.
455 dnl (extracted from ac-archive/Miscellaneous)
456 AC_CACHE_CHECK([for socklen_t],
457 ac_cv_type_socklen_t, [
458 AC_TRY_COMPILE([
459 #include <sys/types.h>
460 #include <sys/socket.h>
461 ], [socklen_t len = 42; return 0;],
462 ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
463 dnl When cross-compiling, do not assume anything.
464 ac_cv_type_socklen_t="guessing no"
465 )
466 ])
467 if [[ "x$ac_cv_type_socklen_t" != "xyes" ]]; then
468 AC_DEFINE(socklen_t, int, [Define to 'int' if <sys/types.h> doesn't define.])
469 fi
470
471 dnl Checks for library functions.
472 AC_CHECK_FUNCS(strdup strerror cfmakeraw)
473 AC_CHECK_FUNCS(clock_gettime timer_create)
474 AC_CHECK_FUNCS(sigaction signal)
475 AC_CHECK_FUNCS(mmap mprotect munmap)
476 AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
477 AC_CHECK_FUNCS(poll inet_aton)
478
479 dnl Darwin seems to define mach_task_self() instead of task_self().
480 AC_CHECK_FUNCS(mach_task_self task_self)
481
482 dnl Check for headers and functions related to pty support (sshpty.c)
483 dnl From openssh-3.2.2p1 configure.ac
484
485 AC_CHECK_HEADERS(strings.h login.h sys/bsdtty.h sys/stat.h util.h pty.h)
486 AC_CHECK_FUNCS(_getpty vhangup strlcpy)
487
488 case "$host" in
489 *-*-hpux10.26)
490 disable_ptmx_check=yes
491 ;;
492 *-*-linux*)
493 no_dev_ptmx=1
494 ;;
495 mips-sony-bsd|mips-sony-newsos4)
496 AC_DEFINE(HAVE_NEWS4, 1, [Define if you are on NEWS-OS (additions from openssh-3.2.2p1, for sshpty.c).])
497 ;;
498 *-*-sco3.2v4*)
499 no_dev_ptmx=1
500 ;;
501 *-*-sco3.2v5*)
502 no_dev_ptmx=1
503 ;;
504 *-*-cygwin*)
505 no_dev_ptmx=1
506 ;;
507 *-*-darwin*)
508 no_dev_ptmx=1
509 ;;
510 esac
511
512 if test -z "$no_dev_ptmx" ; then
513 if test "x$disable_ptmx_check" != "xyes" ; then
514 AC_CHECK_FILE([/dev/ptmx],
515 [
516 AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX, 1, [Define if you have /dev/ptmx.])
517 have_dev_ptmx=1
518 ]
519 )
520 fi
521 fi
522 AC_CHECK_FILE([/dev/ptc],
523 [
524 AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC, 1, [Define if you have /dev/ptc.])
525 have_dev_ptc=1
526 ]
527 )
528 dnl (end of code from openssh-3.2.2p1 configure.ac)
529
530 dnl Check for systems where POSIX-style non-blocking I/O (O_NONBLOCK)
531 dnl doesn't work or is unimplemented. On these systems (mostly older
532 dnl ones), use the old BSD-style FIONBIO approach instead. [tcl.m4]
533 AC_CACHE_CHECK([FIONBIO vs. O_NONBLOCK for non-blocking I/O],
534 ac_cv_nonblocking_io, [
535 case "$host" in
536 *-*-osf*)
537 ac_cv_nonblocking_io=FIONBIO
538 ;;
539 *-*-sunos4*)
540 ac_cv_nonblocking_io=FIONBIO
541 ;;
542 *-*-ultrix*)
543 ac_cv_nonblocking_io=FIONBIO
544 ;;
545 *)
546 ac_cv_nonblocking_io=O_NONBLOCK
547 ;;
548 esac
549 ])
550 if [[ "$ac_cv_nonblocking_io" = "FIONBIO" ]]; then
551 AC_DEFINE(USE_FIONBIO, 1, [Define if BSD-style non-blocking I/O is to be used])
552 fi
553
554 dnl Check whether compiler supports byte bit-fields
555 AC_CACHE_CHECK([whether compiler supports byte bit-fields],
556 ac_cv_have_byte_bitfields, [
557 AC_LANG_SAVE
558 AC_LANG_CPLUSPLUS
559 AC_TRY_RUN([
560 struct A {
561 unsigned char b1:4;
562 unsigned char b2:4;
563 unsigned char c;
564 unsigned short s;
565 unsigned char a[4];
566 };
567
568 int main(void) {
569 A a;
570 return ! (sizeof(A) == 8 && &a.c == ((unsigned char *)&a + 1));
571 }],
572 [ac_cv_have_byte_bitfields=yes],
573 [ac_cv_have_byte_bitfields=no],
574 dnl When cross-compiling, assume only GCC supports this
575 [if [[ "$GCC" = "yes" ]]; then
576 ac_cv_have_byte_bitfields="guessing yes"
577 else
578 ac_cv_have_byte_bitfields="guessing no"
579 fi]
580 )
581 AC_LANG_RESTORE
582 ])
583
584 dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES)
585 AC_DEFUN([AC_CHECK_FRAMEWORK], [
586 AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl
587 AC_CACHE_CHECK([whether compiler supports framework $1],
588 ac_Framework, [
589 saved_LIBS="$LIBS"
590 LIBS="$LIBS -framework $1"
591 AC_TRY_LINK(
592 [$2], [],
593 [AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"]
594 )
595 ])
596 AS_IF([test AS_VAR_GET(ac_Framework) = yes],
597 [AC_DEFINE(AS_TR_CPP(HAVE_FRAMEWORK_$1), 1, [Define if framework $1 is available.])]
598 )
599 AS_VAR_POPDEF([ac_Framework])dnl
600 ])
601
602 dnl Check for some MacOS X frameworks
603 AC_CHECK_FRAMEWORK(AppKit, [])
604 AC_CHECK_FRAMEWORK(Carbon, [#include <Carbon/Carbon.h>])
605 AC_CHECK_FRAMEWORK(IOKit, [#include <IOKit/IOKitLib.h>])
606 AC_CHECK_FRAMEWORK(CoreFoundation, [#include <CoreFoundation/CoreFoundation.h>])
607
608 dnl Select system-dependant source files.
609 SERIALSRC=serial_unix.cpp
610 ETHERSRC=../dummy/ether_dummy.cpp
611 SCSISRC=../dummy/scsi_dummy.cpp
612 AUDIOSRC=../dummy/audio_dummy.cpp
613 EXTFSSRC=extfs_unix.cpp
614 EXTRASYSSRCS=
615 CAN_NATIVE_M68K=no
616 case "$target_os" in
617 linux*)
618 ETHERSRC=ether_unix.cpp
619 AUDIOSRC=audio_oss_esd.cpp
620 SCSISRC=Linux/scsi_linux.cpp
621 ;;
622 freebsd*)
623 ETHERSRC=ether_unix.cpp
624 AUDIOSRC=audio_oss_esd.cpp
625 DEFINES="$DEFINES -DBSD_COMP"
626 CXXFLAGS="$CXXFLAGS -fpermissive"
627 dnl Check for the CAM library
628 AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
629 if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
630 AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
631 else
632 dnl Check for the sys kernel includes
633 AC_CHECK_HEADER(camlib.h)
634 if [[ "x$ac_cv_header_camlib_h" = "xno" ]]; then
635 dnl In this case I should fix this thing including a "patch"
636 dnl to access directly to the functions in the kernel :) --Orlando
637 AC_MSG_WARN([Cannot find includes for CAM library, disabling SCSI support.])
638 else
639 SCSISRC=FreeBSD/scsi_freebsd.cpp
640 LIBS="$LIBS -lcam"
641 DEFINES="$DEFINES -DCAM"
642 fi
643 fi
644 ;;
645 netbsd*)
646 CAN_NATIVE_M68K=yes
647 ETHERSRC=ether_unix.cpp
648 ;;
649 solaris*)
650 AUDIOSRC=Solaris/audio_solaris.cpp
651 DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
652 ;;
653 irix*)
654 AUDIOSRC=Irix/audio_irix.cpp
655 EXTRASYSSRCS=Irix/unaligned.c
656 LIBS="$LIBS -laudio"
657 WANT_ESD=no
658
659 dnl Check if our compiler supports -IPA (MIPSPro)
660 HAVE_IPA=no
661 ocflags="$CFLAGS"
662 CFLAGS=`echo "$CFLAGS -IPA" | sed -e "s/-g//g"`
663 AC_MSG_CHECKING(if "-IPA" works)
664 dnl Do a test compile of an empty function
665 AC_TRY_COMPILE([#if defined __GNUC__
666 # error GCC does not support IPA yet
667 #endif],, [AC_MSG_RESULT(yes); HAVE_IPA=yes], AC_MSG_RESULT(no))
668 CFLAGS="$ocflags"
669 ;;
670 darwin*)
671 ETHERSRC=ether_unix.cpp
672 if [[ "x$ac_cv_framework_IOKit" = "xyes" -a "x$ac_cv_framework_CoreFoundation" = "xyes" ]]; then
673 EXTRASYSSRCS="../MacOSX/sys_darwin.cpp"
674 fi
675 if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
676 EXTFSSRC=../MacOSX/extfs_macosx.cpp
677 fi
678 ;;
679 cygwin*)
680 SERIALSRC="../dummy/serial_dummy.cpp"
681 EXTRASYSSRCS="../Windows/BasiliskII.rc"
682 ;;
683 esac
684
685 dnl Is the slirp library supported?
686 case "$ac_cv_have_byte_bitfields" in
687 yes|"guessing yes")
688 CAN_SLIRP=yes
689 ETHERSRC=ether_unix.cpp
690 ;;
691 esac
692 if [[ -n "$CAN_SLIRP" ]]; then
693 AC_DEFINE(HAVE_SLIRP, 1, [Define if slirp library is supported])
694 SLIRP_SRCS="\
695 ../slirp/bootp.c ../slirp/ip_output.c ../slirp/tcp_input.c \
696 ../slirp/cksum.c ../slirp/mbuf.c ../slirp/tcp_output.c \
697 ../slirp/debug.c ../slirp/misc.c ../slirp/tcp_subr.c \
698 ../slirp/if.c ../slirp/sbuf.c ../slirp/tcp_timer.c \
699 ../slirp/ip_icmp.c ../slirp/slirp.c ../slirp/tftp.c \
700 ../slirp/ip_input.c ../slirp/socket.c ../slirp/udp.c"
701 fi
702 AC_SUBST(SLIRP_SRCS)
703
704 dnl SDL overrides
705 if [[ "x$WANT_SDL" = "xyes" ]]; then
706 AC_DEFINE(USE_SDL, 1, [Define to enble SDL support])
707 if [[ "x$WANT_SDL_FRAMEWORK" = "xyes" ]]; then
708 EXTRASYSSRCS="$EXTRASYSSRCS ../SDL/SDLMain.m"
709 fi
710 fi
711 if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
712 AC_DEFINE(USE_SDL_VIDEO, 1, [Define to enable SDL video graphics support])
713 VIDEOSRCS="../SDL/video_sdl.cpp"
714 KEYCODES="../SDL/keycodes"
715 if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
716 EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
717 EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/utils_macosx.mm"
718 CPPFLAGS="$CPPFLAGS -I../MacOSX"
719 else
720 case "$target_os" in
721 cygwin*)
722 EXTRASYSSRCS="$EXTRASYSSRCS ../Windows/clip_windows.cpp"
723 ;;
724 *)
725 EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
726 ;;
727 esac
728 fi
729 else
730 VIDEOSRCS="video_x.cpp"
731 KEYCODES="keycodes"
732 EXTRASYSSRCS="$EXTRASYSSRCS clip_unix.cpp"
733 fi
734 if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; then
735 AC_DEFINE(USE_SDL_AUDIO, 1, [Define to enable SDL audio support])
736 AUDIOSRC="../SDL/audio_sdl.cpp"
737 fi
738
739 dnl BINCUE overrides
740
741 if [[ "x$have_bincue" = "xyes" ]]; then
742 EXTRASYSSRCS="$EXTRASYSSRCS bincue_unix.cpp"
743 fi
744
745 dnl libvhd overrides
746
747 if [[ "x$have_libvhd" = "xyes" ]]; then
748 EXTRASYSSRCS="$EXTRASYSSRCS vhd_unix.cpp"
749 fi
750
751
752 dnl Use 68k CPU natively?
753 WANT_NATIVE_M68K=no
754 if [[ "x$HAVE_M68K" = "xyes" -a "x$CAN_NATIVE_M68K" = "xyes" ]]; then
755 AC_DEFINE(ENABLE_NATIVE_M68K, 1, [Define if using native 68k mode.])
756 WANT_NATIVE_M68K=yes
757 fi
758
759 if [[ "x$HAVE_PTHREADS" = "xno" ]]; then
760 dnl Serial, ethernet and audio support needs pthreads
761 AC_MSG_WARN([You don't have pthreads, disabling serial, ethernet and audio support.])
762 SERIALSRC=../dummy/serial_dummy.cpp
763 ETHERSRC=../dummy/ether_dummy.cpp
764 AUDIOSRC=../dummy/audio_dummy.cpp
765 fi
766 SYSSRCS="$VIDEOSRCS $EXTFSSRC $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
767
768 dnl Define a macro that translates a yesno-variable into a C macro definition
769 dnl to be put into the config.h file
770 dnl $1 -- the macro to define
771 dnl $2 -- the value to translate
772 dnl $3 -- template name
773 AC_DEFUN([AC_TRANSLATE_DEFINE], [
774 if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
775 AC_DEFINE($1, 1, $3)
776 fi
777 ])
778
779 dnl Check that the host supports TUN/TAP devices
780 AC_CACHE_CHECK([whether TUN/TAP is supported],
781 ac_cv_tun_tap_support, [
782 AC_TRY_COMPILE([
783 #if defined(HAVE_LINUX_IF_H) && defined(HAVE_LINUX_IF_TUN_H)
784 #include <linux/if.h>
785 #include <linux/if_tun.h>
786 #endif
787 #if defined(HAVE_NET_IF_H) && defined(HAVE_NET_IF_TUN_H)
788 #include <net/if.h>
789 #include <net/if_tun.h>
790 #endif
791 ], [
792 struct ifreq ifr;
793 memset(&ifr, 0, sizeof(ifr));
794 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
795 ],
796 ac_cv_tun_tap_support=yes, ac_cv_tun_tap_support=no
797 )
798 ])
799 AC_TRANSLATE_DEFINE(ENABLE_TUNTAP, "$ac_cv_tun_tap_support",
800 [Define if your system supports TUN/TAP devices.])
801
802 dnl Various checks if the system supports vm_allocate() and the like functions.
803 have_mach_vm=no
804 if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
805 "x$ac_cv_func_vm_protect" = "xyes" ]]; then
806 have_mach_vm=yes
807 fi
808 AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm",
809 [Define if your system has a working vm_allocate()-based memory allocator.])
810
811 dnl Check that vm_allocate(), vm_protect() work
812 if [[ "x$have_mach_vm" = "xyes" ]]; then
813
814 AC_CACHE_CHECK([whether vm_protect works],
815 ac_cv_vm_protect_works, [
816 AC_LANG_SAVE
817 AC_LANG_CPLUSPLUS
818 ac_cv_vm_protect_works=yes
819 dnl First the tests that should segfault
820 for test_def in NONE_READ NONE_WRITE READ_WRITE; do
821 AC_TRY_RUN([
822 #define CONFIGURE_TEST_VM_MAP
823 #define TEST_VM_PROT_$test_def
824 #include "vm_alloc.cpp"
825 ], ac_cv_vm_protect_works=no, rm -f core,
826 dnl When cross-compiling, do not assume anything
827 ac_cv_vm_protect_works="guessing no"
828 )
829 done
830 AC_TRY_RUN([
831 #define CONFIGURE_TEST_VM_MAP
832 #define TEST_VM_PROT_RDWR_WRITE
833 #include "vm_alloc.cpp"
834 ], , ac_cv_vm_protect_works=no,
835 dnl When cross-compiling, do not assume anything
836 ac_cv_vm_protect_works="guessing no"
837 )
838 AC_LANG_RESTORE
839 ]
840 )
841
842 dnl Remove support for vm_allocate() if vm_protect() does not work
843 if [[ "x$have_mach_vm" = "xyes" ]]; then
844 case $ac_cv_vm_protect_works in
845 *yes) have_mach_vm=yes;;
846 *no) have_mach_vm=no;;
847 esac
848 fi
849 AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm",
850 [Define if your system has a working vm_allocate()-based memory allocator.])
851
852 fi dnl HAVE_MACH_VM
853
854 dnl Various checks if the system supports mmap() and the like functions.
855 dnl ... and Mach memory allocators are not supported
856 have_mmap_vm=no
857 if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
858 "x$ac_cv_func_mprotect" = "xyes" ]]; then
859 if [[ "x$have_mach_vm" = "xno" ]]; then
860 have_mmap_vm=yes
861 fi
862 fi
863 AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm",
864 [Define if your system has a working mmap()-based memory allocator.])
865
866 dnl Check that mmap() and associated functions work.
867 if [[ "x$have_mmap_vm" = "xyes" ]]; then
868
869 dnl Check if we have a working anonymous mmap()
870 AC_CACHE_CHECK([whether mmap supports MAP_ANON],
871 ac_cv_mmap_anon, [
872 AC_LANG_SAVE
873 AC_LANG_CPLUSPLUS
874 AC_TRY_RUN([
875 #define HAVE_MMAP_ANON
876 #define CONFIGURE_TEST_VM_MAP
877 #define TEST_VM_MMAP_ANON
878 #include "vm_alloc.cpp"
879 ], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
880 dnl When cross-compiling, do not assume anything.
881 ac_cv_mmap_anon="guessing no"
882 )
883 AC_LANG_RESTORE
884 ]
885 )
886 AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon",
887 [Define if <sys/mman.h> defines MAP_ANON and mmap()'ing with MAP_ANON works.])
888
889 AC_CACHE_CHECK([whether mmap supports MAP_ANONYMOUS],
890 ac_cv_mmap_anonymous, [
891 AC_LANG_SAVE
892 AC_LANG_CPLUSPLUS
893 AC_TRY_RUN([
894 #define HAVE_MMAP_ANONYMOUS
895 #define CONFIGURE_TEST_VM_MAP
896 #define TEST_VM_MMAP_ANON
897 #include "vm_alloc.cpp"
898 ], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
899 dnl When cross-compiling, do not assume anything.
900 ac_cv_mmap_anonymous="guessing no"
901 )
902 AC_LANG_RESTORE
903 ]
904 )
905 AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous",
906 [Define if <sys/mman.h> defines MAP_ANONYMOUS and mmap()'ing with MAP_ANONYMOUS works.])
907
908 AC_CACHE_CHECK([whether mprotect works],
909 ac_cv_mprotect_works, [
910 AC_LANG_SAVE
911 AC_LANG_CPLUSPLUS
912 ac_cv_mprotect_works=yes
913 dnl First the tests that should segfault
914 for test_def in NONE_READ NONE_WRITE READ_WRITE; do
915 AC_TRY_RUN([
916 #define CONFIGURE_TEST_VM_MAP
917 #define TEST_VM_PROT_$test_def
918 #include "vm_alloc.cpp"
919 ], ac_cv_mprotect_works=no, rm -f core,
920 dnl When cross-compiling, do not assume anything
921 ac_cv_mprotect_works="guessing no"
922 )
923 done
924 AC_TRY_RUN([
925 #define CONFIGURE_TEST_VM_MAP
926 #define TEST_VM_PROT_RDWR_WRITE
927 #include "vm_alloc.cpp"
928 ], , ac_cv_mprotect_works=no,
929 dnl When cross-compiling, do not assume anything
930 ac_cv_mprotect_works="guessing no"
931 )
932 AC_LANG_RESTORE
933 ]
934 )
935
936 dnl Remove support for mmap() if mprotect() does not work
937 if [[ "x$have_mmap_vm" = "xyes" ]]; then
938 case $ac_cv_mprotect_works in
939 *yes) have_mmap_vm=yes;;
940 *no) have_mmap_vm=no;;
941 esac
942 fi
943 AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm,
944 [Define if your system has a working mmap()-based memory allocator.])
945
946 fi dnl HAVE_MMAP_VM
947
948 dnl Check if we can modify the __PAGEZERO segment for use as Low Memory
949 AC_CACHE_CHECK([whether __PAGEZERO can be Low Memory area 0x0000-0x2000],
950 ac_cv_pagezero_hack, [
951 ac_cv_pagezero_hack=no
952 if AC_TRY_COMMAND([Darwin/testlmem.sh 0x2000]); then
953 ac_cv_pagezero_hack=yes
954 dnl might as well skip the test for mmap-able low memory
955 ac_cv_can_map_lm=no
956 fi
957 ])
958 AC_TRANSLATE_DEFINE(PAGEZERO_HACK, "$ac_cv_pagezero_hack",
959 [Define if the __PAGEZERO Mach-O Low Memory Globals hack works on this system.])
960
961 dnl Check if we can mmap 0x2000 bytes from 0x0000
962 AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x2000],
963 ac_cv_can_map_lm, [
964 AC_LANG_SAVE
965 AC_LANG_CPLUSPLUS
966 AC_TRY_RUN([
967 #include "vm_alloc.cpp"
968 int main(void) { /* returns 0 if we could map the lowmem globals */
969 volatile char * lm = 0;
970 if (vm_init() < 0) exit(1);
971 if (vm_acquire_fixed(0, 0x2000) < 0) exit(1);
972 lm[0] = 'z';
973 if (vm_release((char *)lm, 0x2000) < 0) exit(1);
974 vm_exit(); exit(0);
975 }
976 ], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
977 dnl When cross-compiling, do not assume anything.
978 ac_cv_can_map_lm="guessing no"
979 )
980 AC_LANG_RESTORE
981 ]
982 )
983
984 dnl Check signal handlers need to be reinstalled
985 AC_CACHE_CHECK([whether signal handlers need to be reinstalled],
986 ac_cv_signal_need_reinstall, [
987 AC_LANG_SAVE
988 AC_LANG_CPLUSPLUS
989 AC_TRY_RUN([
990 #include <stdlib.h>
991 #ifdef HAVE_UNISTD_H
992 #include <unistd.h>
993 #endif
994 #include <signal.h>
995 static int handled_signal = 0;
996 RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
997 int main(void) { /* returns 0 if signals need not to be reinstalled */
998 signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
999 exit(handled_signal == 2);
1000 }
1001 ], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
1002 dnl When cross-compiling, do not assume anything.
1003 ac_cv_signal_need_reinstall="guessing yes"
1004 )
1005 AC_LANG_RESTORE
1006 ]
1007 )
1008 AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall",
1009 [Define if your system requires signals to be reinstalled.])
1010
1011 dnl Check if sigaction handlers need to be reinstalled
1012 AC_CACHE_CHECK([whether sigaction handlers need to be reinstalled],
1013 ac_cv_sigaction_need_reinstall, [
1014 AC_LANG_SAVE
1015 AC_LANG_CPLUSPLUS
1016 AC_TRY_RUN([
1017 #include <stdlib.h>
1018 #ifdef HAVE_UNISTD_H
1019 #include <unistd.h>
1020 #endif
1021 #include <signal.h>
1022 static int handled_signal = 0;
1023 RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
1024 typedef RETSIGTYPE (*signal_handler)(int);
1025 static signal_handler mysignal(int sig, signal_handler handler) {
1026 struct sigaction old_sa;
1027 struct sigaction new_sa;
1028 new_sa.sa_handler = handler;
1029 return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
1030 }
1031 int main(void) { /* returns 0 if signals need not to be reinstalled */
1032 mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
1033 exit(handled_signal == 2);
1034 }
1035 ], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
1036 dnl When cross-compiling, do not assume anything.
1037 ac_cv_sigaction_need_reinstall="guessing yes"
1038 )
1039 AC_LANG_RESTORE
1040 ]
1041 )
1042 AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall",
1043 [Define if your system requires sigactions to be reinstalled.])
1044
1045 dnl Check if Mach exceptions supported.
1046 AC_CACHE_CHECK([whether your system supports Mach exceptions],
1047 ac_cv_have_mach_exceptions, [
1048 AC_LANG_SAVE
1049 AC_LANG_CPLUSPLUS
1050 AC_TRY_RUN([
1051 #define HAVE_UNISTD_H 1
1052 #define HAVE_MACH_VM 1
1053 #define HAVE_MACH_TASK_SELF 1
1054 #define HAVE_MACH_EXCEPTIONS 1
1055 #define CONFIGURE_TEST_SIGSEGV_RECOVERY
1056 #include "vm_alloc.cpp"
1057 #include "sigsegv.cpp"
1058 ], [
1059 sigsegv_recovery=mach
1060 ac_cv_have_mach_exceptions=yes
1061 ],
1062 ac_cv_have_mach_exceptions=no,
1063 dnl When cross-compiling, do not assume anything.
1064 ac_cv_have_mach_exceptions=no
1065 )
1066 AC_LANG_RESTORE
1067 ]
1068 )
1069 AC_TRANSLATE_DEFINE(HAVE_MACH_EXCEPTIONS, "$ac_cv_have_mach_exceptions",
1070 [Define if your system supports Mach exceptions.])
1071
1072 dnl Check if Windows exceptions are supported.
1073 AC_CACHE_CHECK([whether your system supports Windows exceptions],
1074 ac_cv_have_win32_exceptions, [
1075 AC_LANG_SAVE
1076 AC_LANG_CPLUSPLUS
1077 AC_TRY_RUN([
1078 #define HAVE_WIN32_EXCEPTIONS 1
1079 #define CONFIGURE_TEST_SIGSEGV_RECOVERY
1080 #include "vm_alloc.cpp"
1081 #include "sigsegv.cpp"
1082 ], [
1083 sigsegv_recovery=win32
1084 ac_cv_have_win32_exceptions=yes
1085 ],
1086 ac_cv_have_win32_exceptions=no,
1087 dnl When cross-compiling, do not assume anything.
1088 ac_cv_have_win32_exceptions=no
1089 )
1090 AC_LANG_RESTORE
1091 ]
1092 )
1093 AC_TRANSLATE_DEFINE(HAVE_WIN32_EXCEPTIONS, "$ac_cv_have_win32_exceptions",
1094 [Define if your system supports Windows exceptions.])
1095
1096 dnl Otherwise, check if extended signals are supported.
1097 if [[ -z "$sigsegv_recovery" ]]; then
1098 AC_CACHE_CHECK([whether your system supports extended signal handlers],
1099 ac_cv_have_extended_signals, [
1100 AC_LANG_SAVE
1101 AC_LANG_CPLUSPLUS
1102 AC_TRY_RUN([
1103 #define HAVE_SIGINFO_T 1
1104 #define CONFIGURE_TEST_SIGSEGV_RECOVERY
1105 #include "vm_alloc.cpp"
1106 #include "sigsegv.cpp"
1107 ], [
1108 sigsegv_recovery=siginfo
1109 ac_cv_have_extended_signals=yes
1110 ],
1111 ac_cv_have_extended_signals=no,
1112 dnl When cross-compiling, do not assume anything.
1113 ac_cv_have_extended_signals=no
1114 )
1115 AC_LANG_RESTORE
1116 ]
1117 )
1118 AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
1119 [Define if your system support extended signals.])
1120 fi
1121
1122 dnl Otherwise, check for subterfuges.
1123 if [[ -z "$sigsegv_recovery" ]]; then
1124 AC_CACHE_CHECK([whether we then have a subterfuge for your system],
1125 ac_cv_have_sigcontext_hack, [
1126 AC_LANG_SAVE
1127 AC_LANG_CPLUSPLUS
1128 AC_TRY_RUN([
1129 #define HAVE_SIGCONTEXT_SUBTERFUGE 1
1130 #define CONFIGURE_TEST_SIGSEGV_RECOVERY
1131 #include "vm_alloc.cpp"
1132 #include "sigsegv.cpp"
1133 ], [
1134 sigsegv_recovery=sigcontext
1135 ac_cv_have_sigcontext_hack=yes
1136 ],
1137 ac_cv_have_sigcontext_hack=no,
1138 dnl When cross-compiling, do not assume anything.
1139 ac_cv_have_sigcontext_hack=no
1140 )
1141 AC_LANG_RESTORE
1142 ])
1143 AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack",
1144 [Define if we know a hack to replace siginfo_t->si_addr member.])
1145 fi
1146
1147 dnl Check if we can ignore the fault (instruction skipping in SIGSEGV handler)
1148 AC_CACHE_CHECK([whether we can skip instruction in SIGSEGV handler],
1149 ac_cv_have_skip_instruction, [
1150 AC_LANG_SAVE
1151 AC_LANG_CPLUSPLUS
1152 AC_TRY_RUN([
1153 #define HAVE_SIGSEGV_SKIP_INSTRUCTION 1
1154 #define CONFIGURE_TEST_SIGSEGV_RECOVERY
1155 #include "vm_alloc.cpp"
1156 #include "sigsegv.cpp"
1157 ], ac_cv_have_skip_instruction=yes, ac_cv_have_skip_instruction=no,
1158 dnl When cross-compiling, do not assume anything.
1159 ac_cv_have_skip_instruction=no
1160 )
1161 AC_LANG_RESTORE
1162 ]
1163 )
1164 AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$ac_cv_have_skip_instruction",
1165 [Define if we can ignore the fault (instruction skipping in SIGSEGV handler).])
1166
1167 dnl Can we do Video on SEGV Signals ?
1168 CAN_VOSF=no
1169 if [[ -n "$sigsegv_recovery" ]]; then
1170 CAN_VOSF=yes
1171 fi
1172
1173 dnl A dummy program that returns always true
1174 AC_PATH_PROG([BLESS], "true")
1175
1176 dnl Check for linker script support
1177 case $target_os:$target_cpu in
1178 linux*:i?86) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";;
1179 linux*:x86_64) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-x86_64.ld";;
1180 linux*:powerpc) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-ppc.ld";;
1181 netbsd*:i?86) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";;
1182 freebsd*:i?86) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/freebsd-i386.ld";;
1183 darwin*:*) LINKER_SCRIPT_FLAGS="-Wl,-seg1addr,0x78048000";;
1184 esac
1185 if [[ -n "$LINKER_SCRIPT_FLAGS" ]]; then
1186 AC_CACHE_CHECK([whether linker script is usable],
1187 ac_cv_linker_script_works, [
1188 AC_LANG_SAVE
1189 AC_LANG_CPLUSPLUS
1190 saved_LDFLAGS="$LDFLAGS"
1191 LDFLAGS="$LDFLAGS $LINKER_SCRIPT_FLAGS"
1192 AC_TRY_RUN(
1193 [int main() {if ((char *)&main < (char *)0x70000000) return 1;}],
1194 [ac_cv_linker_script_works=yes],
1195 [ac_cv_linker_script_works=no],
1196 dnl When cross-compiling, assume it works
1197 [ac_cv_linker_script_works="guessing yes"]
1198 )
1199 AC_LANG_RESTORE
1200 if [[ "$ac_cv_linker_script_works" = "no" ]]; then
1201 LDFLAGS="$saved_LDFLAGS"
1202 LINKER_SCRIPT_FLAGS=""
1203 fi
1204 ])
1205 fi
1206 AC_TRANSLATE_DEFINE(HAVE_LINKER_SCRIPT, "$ac_cv_linker_script_works",
1207 [Define if there is a linker script to relocate the executable above 0x70000000.])
1208
1209 dnl Determine the addressing mode to use
1210 if [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
1211 ADDRESSING_MODE="real"
1212 else
1213 ADDRESSING_MODE=""
1214 AC_MSG_CHECKING([for the addressing mode to use])
1215 for am in $ADDRESSING_TEST_ORDER; do
1216 case $am in
1217 real)
1218 dnl Requires ability to mmap() Low Memory globals
1219 if [[ "x$ac_cv_can_map_lm$ac_cv_pagezero_hack" = "xnono" ]]; then
1220 continue
1221 fi
1222 dnl Requires VOSF screen updates
1223 if [[ "x$CAN_VOSF" = "xno" ]]; then
1224 continue
1225 fi
1226 dnl Real addressing will probably work.
1227 ADDRESSING_MODE="real"
1228 WANT_VOSF=yes dnl we can use VOSF and we need it actually
1229 DEFINES="$DEFINES -DREAL_ADDRESSING"
1230 if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
1231 BLESS=Darwin/lowmem
1232 LDFLAGS="$LDFLAGS -pagezero_size 0x2000"
1233 fi
1234 break
1235 ;;
1236 direct)
1237 dnl Requires VOSF screen updates
1238 if [[ "x$CAN_VOSF" = "xyes" ]]; then
1239 ADDRESSING_MODE="direct"
1240 WANT_VOSF=yes dnl we can use VOSF and we need it actually
1241 DEFINES="$DEFINES -DDIRECT_ADDRESSING"
1242 break
1243 fi
1244 ;;
1245 banks)
1246 dnl Default addressing mode
1247 ADDRESSING_MODE="memory banks"
1248 break
1249 ;;
1250 *)
1251 AC_MSG_ERROR([Internal configure.in script error for $am addressing mode])
1252 esac
1253 done
1254 AC_MSG_RESULT($ADDRESSING_MODE)
1255 if [[ "x$ADDRESSING_MODE" = "x" ]]; then
1256 AC_MSG_WARN([Sorry, no suitable addressing mode in $ADDRESSING_TEST_ORDER])
1257 ADDRESSING_MODE="memory banks"
1258 fi
1259 fi
1260
1261 dnl Banked Memory Addressing mode is not supported by the JIT compiler
1262 if [[ "x$WANT_JIT" = "xyes" -a "x$ADDRESSING_MODE" = "xmemory banks" ]]; then
1263 AC_MSG_ERROR([Sorry, the JIT Compiler requires Direct Addressing, at least])
1264 fi
1265
1266 dnl Enable VOSF screen updates with this feature is requested and feasible
1267 if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then
1268 AC_DEFINE(ENABLE_VOSF, 1, [Define if using video enabled on SEGV signals.])
1269 else
1270 WANT_VOSF=no
1271 fi
1272
1273 dnl Check for GAS.
1274 HAVE_GAS=no
1275 AC_MSG_CHECKING(for GAS .p2align feature)
1276 cat >conftest.S << EOF
1277 .text
1278 .p2align 5
1279 EOF
1280 if $CC conftest.S -c -o conftest.o >/dev/null 2>&1 ; then HAVE_GAS=yes; fi
1281 AC_MSG_RESULT($HAVE_GAS)
1282
1283 dnl Check for GCC 2.7 or higher.
1284 HAVE_GCC27=no
1285 AC_MSG_CHECKING(for GCC 2.7 or higher)
1286 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5)
1287 # error gcc < 2.7
1288 #endif
1289 ]])],
1290 [AC_MSG_RESULT(yes); HAVE_GCC27=yes],
1291 [AC_MSG_RESULT(no)])
1292
1293 dnl Check for GCC 3.0 or higher.
1294 HAVE_GCC30=no
1295 AC_MSG_CHECKING(for GCC 3.0 or higher)
1296 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ >= 3)
1297 # error gcc < 3
1298 #endif
1299 ]])],
1300 [AC_MSG_RESULT(yes); HAVE_GCC30=yes],
1301 [AC_MSG_RESULT(no)])
1302
1303 dnl Check for ICC.
1304 AC_MSG_CHECKING(for ICC)
1305 HAVE_ICC=no
1306 if $CXX -V -v 2>&1 | grep -q "Intel(R) C++ Compiler"; then
1307 HAVE_ICC=yes
1308 fi
1309 AC_MSG_RESULT($HAVE_ICC)
1310
1311 dnl Set "-fomit-frame-pointer" on i386 GCC 2.7 or higher.
1312 dnl Also set "-fno-exceptions" for C++ because exception handling requires
1313 dnl the frame pointer.
1314 if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
1315 CFLAGS="$CFLAGS -fomit-frame-pointer"
1316 CXXFLAGS="$CXXFLAGS -fomit-frame-pointer -fno-exceptions"
1317 fi
1318
1319 dnl (gb) Do not merge constants since it breaks fpu/fpu_x86.cpp.
1320 dnl As of 2001/08/02, this affects the following compilers:
1321 dnl Official: probably gcc-3.1 (mainline CVS)
1322 dnl Mandrake: gcc-2.96 >= 0.59mdk, gcc-3.0.1 >= 0.1mdk
1323 dnl Red Hat : gcc-2.96 >= 89, gcc-3.0 >= 1
1324 if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1325 SAVED_CXXFLAGS="$CXXFLAGS"
1326 CXXFLAGS="$CXXFLAGS -fno-merge-constants"
1327 AC_CACHE_CHECK([whether GCC supports constants merging], ac_cv_gcc_constants_merging, [
1328 AC_LANG_SAVE
1329 AC_LANG_CPLUSPLUS
1330 AC_TRY_COMPILE([],[],[ac_cv_gcc_constants_merging=yes],[ac_cv_gcc_constants_merging=no])
1331 AC_LANG_RESTORE
1332 ])
1333 if [[ "x$ac_cv_gcc_constants_merging" != "xyes" ]]; then
1334 CXXFLAGS="$SAVED_CXXFLAGS"
1335 fi
1336 fi
1337
1338 dnl Store motion was introduced in 3.3-hammer branch and any gcc >= 3.4
1339 dnl However, there are some corner cases exposed on x86-64
1340 if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1341 SAVED_CXXFLAGS="$CXXFLAGS"
1342 CXXFLAGS="$CXXFLAGS -fno-gcse-sm"
1343 AC_CACHE_CHECK([whether GCC supports store motion], ac_cv_gcc_store_motion, [
1344 AC_LANG_SAVE
1345 AC_LANG_CPLUSPLUS
1346 AC_TRY_COMPILE([],[],[ac_cv_gcc_store_motion=yes],[ac_cv_gcc_store_motion=no])
1347 AC_LANG_RESTORE
1348 ])
1349 if [[ "x$ac_cv_gcc_store_motion" != "xyes" ]]; then
1350 CXXFLAGS="$SAVED_CXXFLAGS"
1351 fi
1352 fi
1353
1354 dnl Add -fno-strict-aliasing for slirp sources
1355 if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1356 SAVED_CFLAGS="$CFLAGS"
1357 CFLAGS="$CFLAGS -fno-strict-aliasing"
1358 AC_CACHE_CHECK([whether the compiler supports -fno-strict-aliasing],
1359 ac_cv_gcc_no_strict_aliasing, [
1360 AC_TRY_COMPILE([],[],
1361 [ac_cv_gcc_no_strict_aliasing=yes; AC_SUBST(SLIRP_CFLAGS, "-fno-strict-aliasing")],
1362 [ac_cv_gcc_no_strict_aliasing=no])
1363 ])
1364 CFLAGS="$SAVED_CFLAGS"
1365 fi
1366
1367 dnl Add -mdynamic-no-pic for MacOS X (XXX icc10 will support MacOS X)
1368 if [[ "x$HAVE_GCC30" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1369 SAVED_CFLAGS="$CFLAGS"
1370 CFLAGS="$CFLAGS -mdynamic-no-pic"
1371 AC_CACHE_CHECK([whether the compiler supports -mdynamic-no-pic],
1372 ac_cv_gcc_mdynamic_no_pic, [
1373 AC_TRY_COMPILE([],[],[ac_cv_gcc_mdynamic_no_pic=yes],[ac_cv_gcc_mdynamic_no_pic=no])
1374 ])
1375 if [[ "x$ac_cv_gcc_mdynamic_no_pic" = "xyes" ]]; then
1376 CXXFLAGS="$CXXFLAGS -mdynamic-no-pic"
1377 else
1378 CFLAGS="$SAVED_CFLAGS"
1379 fi
1380 fi
1381
1382 dnl Select appropriate CPU source and REGPARAM define.
1383 ASM_OPTIMIZATIONS=none
1384 CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
1385
1386 dnl (gb) JITSRCS will be emptied later if the JIT is not available
1387 dnl Other platforms should define their own set of noflags file variants
1388 CAN_JIT=no
1389 JITSRCS="compemu1.cpp compemu2.cpp compemu3.cpp compemu4.cpp compemu5.cpp compemu6.cpp compemu7.cpp compemu8.cpp"
1390
1391 if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
1392 dnl i386 CPU
1393 DEFINES="$DEFINES -DUNALIGNED_PROFITABLE -DREGPARAM=\"__attribute__((regparm(3)))\""
1394 if [[ "x$HAVE_GAS" = "xyes" ]]; then
1395 ASM_OPTIMIZATIONS=i386
1396 DEFINES="$DEFINES -DX86_ASSEMBLY -DOPTIMIZED_FLAGS -DSAHF_SETO_PROFITABLE"
1397 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 $JITSRCS"
1398 CAN_JIT=yes
1399 fi
1400 elif [[ "x$HAVE_GCC30" = "xyes" -a "x$HAVE_X86_64" = "xyes" ]]; then
1401 dnl x86-64 CPU
1402 DEFINES="$DEFINES -DUNALIGNED_PROFITABLE"
1403 if [[ "x$HAVE_GAS" = "xyes" ]]; then
1404 ASM_OPTIMIZATIONS="x86-64"
1405 DEFINES="$DEFINES -DX86_64_ASSEMBLY -DOPTIMIZED_FLAGS"
1406 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 $JITSRCS"
1407 CAN_JIT=yes
1408 fi
1409 elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
1410 dnl SPARC CPU
1411 case "$target_os" in
1412 solaris*)
1413 AC_MSG_CHECKING(SPARC CPU architecture)
1414 SPARC_TYPE=`Solaris/which_sparc`
1415 AC_MSG_RESULT($SPARC_TYPE)
1416 case "$SPARC_TYPE" in
1417 SPARC_V8)
1418 ASM_OPTIMIZATIONS="SPARC V8 architecture"
1419 DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
1420 CFLAGS="$CFLAGS -Wa,-Av8"
1421 CXXFLAGS="$CXXFLAGS -Wa,-Av8"
1422 ;;
1423 SPARC_V9)
1424 ASM_OPTIMIZATIONS="SPARC V9 architecture"
1425 DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
1426 CFLAGS="$CFLAGS -Wa,-Av9"
1427 CXXFLAGS="$CXXFLAGS -Wa,-Av9"
1428 ;;
1429 esac
1430 ;;
1431 esac
1432 elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
1433 dnl Native m68k, no emulation
1434 CPUINCLUDES="-I../native_cpu"
1435 CPUSRCS="asm_support.s"
1436 fi
1437
1438 dnl Enable JIT compiler, if possible.
1439 if [[ "x$WANT_JIT" = "xyes" -a "x$CAN_JIT" ]]; then
1440 JITSRCS="$JITSRCS ../uae_cpu/compiler/compemu_support.cpp ../uae_cpu/compiler/compemu_fpp.cpp compstbl.o cpustbl_nf.o"
1441 DEFINES="$DEFINES -DUSE_JIT -DUSE_JIT_FPU"
1442
1443 if [[ "x$WANT_JIT_DEBUG" = "xyes" ]]; then
1444 if [[ "x$WANT_MON" = "xyes" ]]; then
1445 DEFINES="$DEFINES -DJIT_DEBUG=1"
1446 else
1447 AC_MSG_WARN([cxmon not found, ignoring --enable-jit-debug])
1448 WANT_JIT_DEBUG=no
1449 fi
1450 fi
1451
1452 dnl IEEE core is the only FPU emulator to use with the JIT compiler
1453 case $FPE_CORE_TEST_ORDER in
1454 ieee*) ;;
1455 *) AC_MSG_WARN([Forcing use of the IEEE FPU core, as the JIT compiler supports only this one.]) ;;
1456 esac
1457 FPE_CORE_TEST_ORDER="ieee"
1458 else
1459 WANT_JIT=no
1460 WANT_JIT_DEBUG=no
1461 JITSRCS=""
1462 fi
1463
1464 dnl Utility macro used by next two tests.
1465 dnl AC_EXAMINE_OBJECT(C source code,
1466 dnl commands examining object file,
1467 dnl [commands to run if compile failed]):
1468 dnl
1469 dnl Compile the source code to an object file; then convert it into a
1470 dnl printable representation. All unprintable characters and
1471 dnl asterisks (*) are replaced by dots (.). All white space is
1472 dnl deleted. Newlines (ASCII 0x10) in the input are preserved in the
1473 dnl output, but runs of newlines are compressed to a single newline.
1474 dnl Finally, line breaks are forcibly inserted so that no line is
1475 dnl longer than 80 columns and the file ends with a newline. The
1476 dnl result of all this processing is in the file conftest.dmp, which
1477 dnl may be examined by the commands in the second argument.
1478 dnl
1479 AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
1480 [AC_LANG_SAVE
1481 AC_LANG_C
1482 dnl Next bit cribbed from AC_TRY_COMPILE.
1483 cat > conftest.$ac_ext <<EOF
1484 [#line __oline__ "configure"
1485 #include "confdefs.h"
1486 $1
1487 ]EOF
1488 if AC_TRY_EVAL(ac_compile); then
1489 od -c conftest.o |
1490 sed ['s/^[0-7]*[ ]*/ /
1491 s/\*/./g
1492 s/ \\n/*/g
1493 s/ [0-9][0-9][0-9]/./g
1494 s/ \\[^ ]/./g'] |
1495 tr -d '
1496 ' | tr -s '*' '
1497 ' | fold | sed '$a\
1498 ' > conftest.dmp
1499 $2
1500 ifelse($3, , , else
1501 $3
1502 )dnl
1503 fi
1504 rm -rf conftest*
1505 AC_LANG_RESTORE])
1506
1507 dnl Floating point format probe.
1508 dnl The basic concept is the same as the above: grep the object
1509 dnl file for an interesting string. We have to watch out for
1510 dnl rounding changing the values in the object, however; this is
1511 dnl handled by ignoring the least significant byte of the float.
1512 dnl
1513 dnl Does not know about VAX G-float or C4x idiosyncratic format.
1514 dnl It does know about PDP-10 idiosyncratic format, but this is
1515 dnl not presently supported by GCC. S/390 "binary floating point"
1516 dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
1517 dnl as ASCII?)
1518 dnl
1519 AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
1520 [AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
1521 [gcc_AC_EXAMINE_OBJECT(
1522 [/* This will not work unless sizeof(double) == 8. */
1523 extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
1524
1525 /* This structure must have no internal padding. */
1526 struct possibility {
1527 char prefix[8];
1528 double candidate;
1529 char postfix[8];
1530 };
1531
1532 #define C(cand) { "\nformat:", cand, ":tamrof\n" }
1533 struct possibility table [] =
1534 {
1535 C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
1536 C( 3.53802595280598432000e+18), /* D__float - VAX */
1537 C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
1538 C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
1539 C(-5.22995989424860458374e+10) /* IBMHEXFP - s/390 format, EBCDIC */
1540 };],
1541 [if grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1542 ac_cv_c_float_format='IEEE (big-endian)'
1543 elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
1544 ac_cv_c_float_format='IEEE (big-endian)'
1545 elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
1546 ac_cv_c_float_format='IEEE (little-endian)'
1547 elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
1548 ac_cv_c_float_format='IEEE (little-endian)'
1549 elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
1550 ac_cv_c_float_format='VAX D-float'
1551 elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
1552 ac_cv_c_float_format='PDP-10'
1553 elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1554 ac_cv_c_float_format='IBM 370 hex'
1555 else
1556 AC_MSG_ERROR(Unknown floating point format)
1557 fi],
1558 [AC_MSG_ERROR(compile failed)])
1559 ])
1560 # IEEE is the default format. If the float endianness isn't the same
1561 # as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
1562 # (which is a tristate: yes, no, default). This is only an issue with
1563 # IEEE; the other formats are only supported by a few machines each,
1564 # all with the same endianness.
1565 format=IEEE_FLOAT_FORMAT
1566 fbigend=
1567 case $ac_cv_c_float_format in
1568 'IEEE (big-endian)' )
1569 if test $ac_cv_c_bigendian = no; then
1570 fbigend=1
1571 fi
1572 ;;
1573 'IEEE (little-endian)' )
1574 if test $ac_cv_c_bigendian = yes; then
1575 fbigend=0
1576 fi
1577 ;;
1578 'VAX D-float' )
1579 format=VAX_FLOAT_FORMAT
1580 ;;
1581 'PDP-10' )
1582 format=PDP10_FLOAT_FORMAT
1583 ;;
1584 'IBM 370 hex' )
1585 format=IBM_FLOAT_FORMAT
1586 ;;
1587 esac
1588 AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
1589 [Define to the floating point format of the host machine.])
1590 if test -n "$fbigend"; then
1591 AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
1592 [Define to 1 if the host machine stores floating point numbers in
1593 memory with the word containing the sign bit at the lowest address,
1594 or to 0 if it does it the other way around.
1595
1596 This macro should not be defined if the ordering is the same as for
1597 multi-word integers.])
1598 fi
1599 ])
1600
1601 dnl Select appropriate FPU source.
1602 gcc_AC_C_FLOAT_FORMAT
1603 AC_CHECK_HEADERS(ieee754.h ieeefp.h floatingpoint.h nan.h)
1604
1605 for fpe in $FPE_CORE_TEST_ORDER; do
1606 case $fpe in
1607 ieee)
1608 case $ac_cv_c_float_format in
1609 IEEE*)
1610 FPE_CORE="IEEE fpu core"
1611 DEFINES="$DEFINES -DFPU_IEEE"
1612 FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
1613 dnl Math functions not mandated by C99 standard
1614 AC_CHECK_FUNCS(isnanl isinfl)
1615 dnl Math functions required by C99 standard, but probably not
1616 dnl implemented everywhere. In that case, we fall back to the
1617 dnl regular variant for doubles.
1618 AC_CHECK_FUNCS(logl log10l expl powl fabsl sqrtl)
1619 AC_CHECK_FUNCS(sinl cosl tanl sinhl coshl tanhl)
1620 AC_CHECK_FUNCS(asinl acosl atanl asinhl acoshl atanhl)
1621 AC_CHECK_FUNCS(floorl ceill)
1622 break
1623 ;;
1624 esac
1625 ;;
1626 x86)
1627 if [[ ":$HAVE_GCC27:$HAVE_I386:$HAVE_GAS:" = ":yes:yes:yes:" ]]; then
1628 FPE_CORE="i387 fpu core"
1629 DEFINES="$DEFINES -DFPU_X86"
1630 FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
1631 break
1632 fi
1633 ;;
1634 uae)
1635 FPE_CORE="uae fpu core"
1636 DEFINES="$DEFINES -DFPU_UAE"
1637 FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
1638 break
1639 ;;
1640 *)
1641 AC_MSG_ERROR([Internal configure.in script error for $fpe fpu core])
1642 ;;
1643 esac
1644 done
1645 if [[ "x$FPE_CORE" = "x" ]]; then
1646 AC_MSG_ERROR([Sorry, no suitable FPU core found in $FPE_CORE_TEST_ORDER])
1647 fi
1648
1649 dnl Check for certain math functions
1650 AC_CHECK_FUNCS(atanh)
1651 AC_CHECK_FUNCS(isnan isinf finite isnormal signbit)
1652
1653 dnl UAE CPU sources for all non-m68k-native architectures.
1654 if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
1655 CPUINCLUDES="-I../uae_cpu"
1656 CPUSRCS="../uae_cpu/basilisk_glue.cpp ../uae_cpu/memory.cpp ../uae_cpu/newcpu.cpp ../uae_cpu/readcpu.cpp $FPUSRCS cpustbl.cpp cpudefs.cpp $CPUSRCS $JITSRCS"
1657 fi
1658
1659 dnl Remove the "-g" option if set for GCC.
1660 if [[ "x$HAVE_GCC27" = "xyes" ]]; then
1661 CFLAGS=`echo $CFLAGS | sed -e 's/-g\b//g'`
1662 CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g\b//g'`
1663 fi
1664
1665 dnl Or if we have -IPA (MIPSPro compilers)
1666 if [[ "x$HAVE_IPA" = "xyes" ]]; then
1667 CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1668 CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1669 CXXFLAGS="-LANG:std $CXXFLAGS"
1670 LDFLAGS="$LDFLAGS -O3 -OPT:Olimit=0 -IPA"
1671 fi
1672
1673 dnl Generate Makefile.
1674 AC_SUBST(DEFINES)
1675 AC_SUBST(SYSSRCS)
1676 AC_SUBST(CPUINCLUDES)
1677 AC_SUBST(CPUSRCS)
1678 AC_SUBST(BLESS)
1679 AC_SUBST(KEYCODES)
1680 AC_CONFIG_FILES([Makefile])
1681 AC_OUTPUT
1682
1683 dnl Print summary.
1684 echo
1685 echo Basilisk II configuration summary:
1686 echo
1687 echo SDL support ............................ : $SDL_SUPPORT
1688 echo BINCUE support ......................... : $have_bincue
1689 echo LIBVHD support ......................... : $have_libvhd
1690 echo XFree86 DGA support .................... : $WANT_XF86_DGA
1691 echo XFree86 VidMode support ................ : $WANT_XF86_VIDMODE
1692 echo fbdev DGA support ...................... : $WANT_FBDEV_DGA
1693 echo Enable video on SEGV signals ........... : $WANT_VOSF
1694 echo ESD sound support ...................... : $WANT_ESD
1695 echo GTK user interface ..................... : $WANT_GTK
1696 echo mon debugger support ................... : $WANT_MON
1697 echo Running m68k code natively ............. : $WANT_NATIVE_M68K
1698 echo Use JIT compiler ....................... : $WANT_JIT
1699 echo JIT debug mode ......................... : $WANT_JIT_DEBUG
1700 echo Floating-Point emulation core .......... : $FPE_CORE
1701 echo Assembly optimizations ................. : $ASM_OPTIMIZATIONS
1702 echo Addressing mode ........................ : $ADDRESSING_MODE
1703 echo Bad memory access recovery type ........ : $sigsegv_recovery
1704 echo
1705 echo "Configuration done. Now type \"make\" (or \"gmake\")."