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root/cebix/SheepShaver/src/Unix/configure.in
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Comparing SheepShaver/src/Unix/configure.in (file contents):
Revision 1.3 by gbeauche, 2003-01-04T12:23:39Z vs.
Revision 1.29 by gbeauche, 2004-06-26T15:26:17Z

# Line 5 | Line 5 | AC_INIT(main_unix.cpp)
5   AC_PREREQ(2.12)
6   AC_CONFIG_HEADER(config.h)
7  
8 + dnl Canonical system information.
9 + AC_CANONICAL_HOST
10 + AC_CANONICAL_TARGET
11 +
12   dnl Options.
13 + AC_ARG_ENABLE(jit,          [  --enable-jit            enable JIT compiler [default=yes]], [WANT_JIT=$enableval], [WANT_JIT=yes])
14 + AC_ARG_ENABLE(ppc-emulator, [  --enable-ppc-emulator   use the selected PowerPC emulator [default=auto]], [WANT_EMULATED_PPC=$enableval], [WANT_EMULATED_PPC=auto])
15   AC_ARG_ENABLE(xf86-dga,     [  --enable-xf86-dga       use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
16 < AC_ARG_ENABLE(xf86-vidmode, [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
16 > AC_ARG_ENABLE(xf86-vidmode, [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=no]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=no])
17 > AC_ARG_ENABLE(vosf,         [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
18   AC_ARG_WITH(esd,            [  --with-esd              support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
19   AC_ARG_WITH(gtk,            [  --with-gtk              use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes])
20   AC_ARG_WITH(mon,            [  --with-mon              use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
21 + AC_ARG_WITH(dgcc,           [  --with-dgcc=COMPILER    use C++ COMPILER to compile synthetic opcodes], [DYNGEN_CC=$withval])
22 +
23 + dnl SDL options.
24 + AC_ARG_ENABLE(sdl-static,   [  --enable-sdl-static     use SDL static libraries for linking [default=no]], [WANT_SDL_STATIC=$enableval], [WANT_SDL_STATIC=no])
25 + AC_ARG_ENABLE(sdl-video,    [  --enable-sdl-video      use SDL for video graphics [default=no]], [WANT_SDL_VIDEO=$enableval], [WANT_SDL_VIDEO=no])
26  
27   dnl Checks for programs.
28   AC_PROG_CC
# Line 27 | Line 39 | AC_EGREP_CPP(yes,
39   #ifdef __powerpc__
40    yes
41   #endif
42 + #ifdef __ppc__
43 +  yes
44 + #endif
45   ], [AC_MSG_RESULT(yes); HAVE_PPC=yes], AC_MSG_RESULT(no))
46  
47 + dnl We use native CPU if possible.
48 + EMULATED_PPC=yes
49 + case $WANT_EMULATED_PPC in
50 +  auto) [[ "x$HAVE_PPC" = "xyes" ]] && EMULATED_PPC=no;;
51 +  no)   EMULATED_PPC=no;;
52 + esac
53 + if [[ "x$EMULATED_PPC" = "xyes" ]]; then
54 +  AC_DEFINE(EMULATED_PPC)
55 + fi
56 +
57   dnl We use mon if possible.
58   MONSRCS=
59 + case "x$WANT_MON" in
60 + x/* | x.*)
61 +  mon_srcdir=$WANT_MON
62 +  WANT_MON=yes
63 +  ;;
64 + xyes)
65 +  mon_srcdir=../../../mon/src
66 +  ;;
67 + esac
68   if [[ "x$WANT_MON" = "xyes" ]]; then
69    AC_MSG_CHECKING(for mon)
36 –  mon_srcdir=../../../mon/src
70    if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
71      AC_MSG_RESULT(yes)
72      AC_DEFINE(ENABLE_MON)
# Line 57 | Line 90 | fi
90   dnl Checks for libraries.
91   AC_CHECK_LIB(posix4, sem_init)
92  
93 < dnl We need X11.
94 < AC_PATH_XTRA
95 < if [[ "x$no_x" = "xyes" ]]; then
96 <  AC_MSG_ERROR([You need X11 to run SheepShaver.])
97 < fi
98 < CFLAGS="$CFLAGS $X_CFLAGS"
99 < CXXFLAGS="$CXXFLAGS $X_CFLAGS"
100 < LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS"
93 > dnl Do we need SDL?
94 > WANT_SDL=no
95 > SDL_SUPPORT="none"
96 > if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
97 >  WANT_SDL=yes
98 >  WANT_XF86_DGA=no
99 >  WANT_XF86_VIDMODE=no
100 >  WANT_FBDEV_DGA=no
101 >  SDL_SUPPORT="video"
102 > fi
103 > if [[ "x$WANT_SDL" = "xyes" ]]; then
104 >  AC_PATH_PROG(sdl_config, "sdl-config")
105 >  if [[ -n "$sdl_config" ]]; then
106 >    sdl_cflags=`$sdl_config --cflags`
107 >    if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
108 >      sdl_libs=`$sdl_config --static-libs`
109 >    else
110 >      sdl_libs=`$sdl_config --libs`
111 >    fi
112 >    CFLAGS="$CFLAGS $sdl_cflags"
113 >    CXXFLAGS="$CXXFLAGS $sdl_cflags"
114 >    LIBS="$LIBS $sdl_libs"
115 >  else
116 >    WANT_SDL=no
117 >  fi
118 > fi
119 >
120 > dnl We need X11, if not using SDL.
121 > if [[ "x$WANT_SDL" = "xno" ]]; then
122 >  AC_PATH_XTRA
123 >  if [[ "x$no_x" = "xyes" ]]; then
124 >    AC_MSG_ERROR([You need X11 to run SheepShaver.])
125 >  fi
126 >  CFLAGS="$CFLAGS $X_CFLAGS"
127 >  CXXFLAGS="$CXXFLAGS $X_CFLAGS"
128 >  LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS"
129 > fi
130  
131   dnl We need pthreads on non-PowerPC systems. Try libpthread first, then libc_r (FreeBSD), then PTL.
132   HAVE_PTHREADS=yes
133 < if [[ "x$HAVE_PPC" = "xno" ]]; then
133 > case $EMULATED_PPC:$target_os in
134 > no:linux*)
135 >  dnl We do have our own pthread_cancel() implementation
136 >  AC_DEFINE(HAVE_PTHREAD_CANCEL, 1, [Define if you have the pthread_cancel function.])
137 >  ;;
138 > *:*)
139    AC_CHECK_LIB(pthread, pthread_create, , [
140      AC_CHECK_LIB(c_r, pthread_create, , [
141        AC_CHECK_LIB(PTL, pthread_create, , [
# Line 77 | Line 144 | if [[ "x$HAVE_PPC" = "xno" ]]; then
144      ])
145    ])
146    AC_CHECK_FUNCS(pthread_cancel)
147 < fi
148 <
149 < dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
83 < SEMSRC=
84 < AC_CHECK_FUNCS(sem_init, , [
147 >  AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
148 >  AC_CHECK_FUNCS(pthread_mutexattr_settype)
149 >  AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
150    if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
151 +    AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
152 +  fi
153 +  dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
154 +  SEMSRC=
155 +  AC_CHECK_FUNCS(sem_init, , [
156 +  if test "x$HAVE_PTHREADS" = "xyes"; then
157      SEMSRC=posix_sem.cpp
158    fi
159 < ])
159 >  ])
160 >  ;;
161 > esac
162  
163   dnl We use XFree86 DGA if possible.
164   if [[ "x$WANT_XF86_DGA" = "xyes" ]]; then
# Line 110 | Line 183 | if [[ "x$WANT_XF86_VIDMODE" = "xyes" ]];
183   fi
184  
185   dnl We use GTK+ if possible.
186 < UISRCS=
186 > UISRCS=../dummy/prefs_editor_dummy.cpp
187   if [[ "x$WANT_GTK" = "xyes" ]]; then
188    AM_PATH_GTK(1.2.0, [
189      AC_DEFINE(ENABLE_GTK)
# Line 140 | Line 213 | fi
213   dnl Checks for header files.
214   AC_HEADER_STDC
215   AC_HEADER_SYS_WAIT
216 < AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h)
216 > AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h)
217 > AC_CHECK_HEADERS(sys/time.h sys/times.h)
218 > AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h)
219 > AC_CHECK_HEADERS(linux/if.h linux/if_tun.h net/if.h net/if_tun.h)
220  
221   dnl Checks for typedefs, structures, and compiler characteristics.
222   AC_C_BIGENDIAN
# Line 150 | Line 226 | AC_CHECK_SIZEOF(short, 2)
226   AC_CHECK_SIZEOF(int, 4)
227   AC_CHECK_SIZEOF(long, 4)
228   AC_CHECK_SIZEOF(long long, 8)
229 + AC_CHECK_SIZEOF(float, 4)
230 + AC_CHECK_SIZEOF(double, 8)
231   AC_CHECK_SIZEOF(void *, 4)
232   AC_TYPE_OFF_T
233   AC_CHECK_TYPE(loff_t, off_t)
234   AC_TYPE_SIZE_T
235 + AC_TYPE_SIGNAL
236   AC_HEADER_TIME
237   AC_STRUCT_TM
238  
239 + dnl Check whether struct sigaction has sa_restorer member.
240 + AC_CACHE_CHECK([whether struct sigaction has sa_restorer],
241 +  ac_cv_signal_sa_restorer, [
242 +  AC_TRY_COMPILE([
243 +    #include <signal.h>
244 +  ], [struct sigaction sa; sa.sa_restorer = 0;],
245 +  ac_cv_signal_sa_restorer=yes, ac_cv_signal_sa_restorer=no,
246 +  dnl When cross-compiling, do not assume anything.
247 +  ac_cv_signal_sa_restorer=no
248 +  )
249 + ])
250 + if [[ "x$ac_cv_signal_sa_restorer" = "xyes" ]]; then
251 +  AC_DEFINE(HAVE_SIGNAL_SA_RESTORER)
252 + fi
253 +
254   dnl Checks for library functions.
255 < AC_CHECK_FUNCS(strdup cfmakeraw)
256 < AC_CHECK_FUNCS(nanosleep clock_gettime timer_create)
255 > AC_CHECK_FUNCS(strdup strlcpy cfmakeraw)
256 > AC_CHECK_FUNCS(nanosleep)
257 > AC_CHECK_FUNCS(sigaction signal)
258 > AC_CHECK_FUNCS(mmap mprotect munmap)
259 > AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
260 > AC_CHECK_FUNCS(posix_memalign memalign valloc)
261 >
262 > dnl Darwin seems to define mach_task_self() instead of task_self().
263 > AC_CHECK_FUNCS(mach_task_self task_self)
264 >
265 > dnl We need clock_gettime() for better performance but it may drag
266 > dnl libpthread in, which we don't want for native ppc mode
267 > case $EMULATED_PPC:$target_os in
268 > no:linux*)
269 >  ;;
270 > *:*)
271 >  AC_SEARCH_LIBS(clock_gettime, [rt posix4])
272 >  AC_CHECK_FUNCS(clock_gettime)
273 >  ;;
274 > esac
275  
276   dnl Select system-dependant sources.
277 < if [[ "x$HAVE_PPC" = "xyes" ]]; then
278 <  SYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
277 > SERIALSRC=serial_unix.cpp
278 > ETHERSRC=../dummy/ether_dummy.cpp
279 > SCSISRC=../dummy/scsi_dummy.cpp
280 > AUDIOSRC=../dummy/audio_dummy.cpp
281 > EXTRASYSSRCS=
282 > case "$target_os" in
283 > linux*)
284 >  ETHERSRC=Linux/ether_linux.cpp
285 >  AUDIOSRC=audio_oss_esd.cpp
286 >  SCSISRC=Linux/scsi_linux.cpp
287 >  if [[ "x$EMULATED_PPC" = "xno" ]]; then
288 >    EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
289 >  fi
290 >  ;;
291 > darwin*)
292 >  if [[ "x$EMULATED_PPC" = "xno" ]]; then
293 >    EXTRASYSSRCS="Darwin/paranoia.cpp Linux/asm_linux.S"
294 >  fi
295 >  ;;
296 > esac
297 >
298 > dnl SDL overrides
299 > if [[ "x$WANT_SDL" = "xyes" ]]; then
300 >  AC_DEFINE(USE_SDL, 1, [Define to enble SDL support])
301 > fi
302 > if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
303 >  VIDEOSRCS="../SDL/video_sdl.cpp ../dummy/clip_dummy.cpp"
304 >  AC_DEFINE(USE_SDL_VIDEO, 1, [Define to enable SDL video graphics support])
305 > else
306 >  VIDEOSRCS="video_x.cpp clip_unix.cpp"
307 > fi
308 >
309 > SYSSRCS="$VIDEOSRCS $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
310 >
311 > dnl Define a macro that translates a yesno-variable into a C macro definition
312 > dnl to be put into the config.h file
313 > dnl $1 -- the macro to define
314 > dnl $2 -- the value to translate
315 > dnl $3 -- template name
316 > AC_DEFUN(AC_TRANSLATE_DEFINE, [
317 >    if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
318 >        AC_DEFINE($1, 1, $3)
319 >    fi
320 > ])
321 >
322 > dnl Check that the host supports TUN/TAP devices
323 > AC_CACHE_CHECK([whether TUN/TAP is supported],
324 >  ac_cv_tun_tap_support, [
325 >  AC_TRY_COMPILE([
326 >    #if defined(HAVE_LINUX_IF_H) && defined(HAVE_LINUX_IF_TUN_H)
327 >    #include <linux/if.h>
328 >    #include <linux/if_tun.h>
329 >    #endif
330 >    #if defined(HAVE_NET_IF_H) && defined(HAVE_NET_IF_TUN_H)
331 >    #include <net/if.h>
332 >    #include <net/if_tun.h>
333 >    #endif
334 >  ], [
335 >    struct ifreq ifr;
336 >    memset(&ifr, 0, sizeof(ifr));
337 >    ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
338 >  ],
339 >  ac_cv_tun_tap_support=yes, ac_cv_tun_tap_support=no
340 >  )
341 > ])
342 > AC_TRANSLATE_DEFINE(ENABLE_TUNTAP, "$ac_cv_tun_tap_support",
343 >  [Define if your system supports TUN/TAP devices.])
344 >
345 > dnl Various checks if the system supports vm_allocate() and the like functions.
346 > have_mach_vm=no
347 > if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
348 >      "x$ac_cv_func_vm_protect" = "xyes" ]]; then
349 >  have_mach_vm=yes
350 > fi
351 > AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm",
352 >  [Define if your system has a working vm_allocate()-based memory allocator.])
353 >
354 > dnl Check that vm_allocate(), vm_protect() work
355 > if [[ "x$have_mach_vm" = "xyes" ]]; then
356 >
357 > AC_CACHE_CHECK([whether vm_protect works],
358 >  ac_cv_vm_protect_works, [
359 >  AC_LANG_SAVE
360 >  AC_LANG_CPLUSPLUS
361 >  ac_cv_vm_protect_works=yes
362 >  dnl First the tests that should segfault
363 >  for test_def in NONE_READ NONE_WRITE READ_WRITE; do
364 >    AC_TRY_RUN([
365 >      #define CONFIGURE_TEST_VM_MAP
366 >      #define TEST_VM_PROT_$test_def
367 >      #include "vm_alloc.cpp"
368 >    ], ac_cv_vm_protect_works=no, rm -f core,
369 >    dnl When cross-compiling, do not assume anything
370 >    ac_cv_vm_protect_works="guessing no"
371 >    )
372 >  done
373 >  AC_TRY_RUN([
374 >    #define CONFIGURE_TEST_VM_MAP
375 >    #define TEST_VM_PROT_RDWR_WRITE
376 >    #include "vm_alloc.cpp"
377 >  ], , ac_cv_vm_protect_works=no,
378 >  dnl When cross-compiling, do not assume anything
379 >  ac_cv_vm_protect_works="guessing no"
380 >  )
381 >  AC_LANG_RESTORE
382 >  ]
383 > )
384 >
385 > dnl Remove support for vm_allocate() if vm_protect() does not work
386 > if [[ "x$have_mach_vm" = "xyes" ]]; then
387 >  case $ac_cv_vm_protect_works in
388 >    *yes) have_mach_vm=yes;;
389 >    *no) have_mach_vm=no;;
390 >  esac
391 > fi
392 > AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm",
393 >  [Define if your system has a working vm_allocate()-based memory allocator.])
394 >
395 > fi dnl HAVE_MACH_VM
396 >
397 > dnl Various checks if the system supports mmap() and the like functions.
398 > dnl ... and Mach memory allocators are not supported
399 > have_mmap_vm=no
400 > if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
401 >      "x$ac_cv_func_mprotect" = "xyes" ]]; then
402 >  if [[ "x$have_mach_vm" = "xno" ]]; then
403 >    have_mmap_vm=yes
404 >  fi
405 > fi
406 > AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm",
407 >  [Define if your system has a working mmap()-based memory allocator.])
408 >
409 > dnl Check that mmap() and associated functions work.
410 > if [[ "x$have_mmap_vm" = "xyes" ]]; then
411 >
412 > dnl Check if we have a working anonymous mmap()
413 > AC_CACHE_CHECK([whether mmap supports MAP_ANON],
414 >  ac_cv_mmap_anon, [
415 >  AC_LANG_SAVE
416 >  AC_LANG_CPLUSPLUS
417 >  AC_TRY_RUN([
418 >    #define HAVE_MMAP_ANON
419 >    #define CONFIGURE_TEST_VM_MAP
420 >    #define TEST_VM_MMAP_ANON
421 >    #include "vm_alloc.cpp"
422 >  ], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
423 >  dnl When cross-compiling, do not assume anything.
424 >  ac_cv_mmap_anon="guessing no"
425 >  )
426 >  AC_LANG_RESTORE
427 >  ]
428 > )
429 > AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon",
430 >  [Define if <sys/mman.h> defines MAP_ANON and mmap()'ing with MAP_ANON works.])
431 >
432 > AC_CACHE_CHECK([whether mmap supports MAP_ANONYMOUS],
433 >  ac_cv_mmap_anonymous, [
434 >  AC_LANG_SAVE
435 >  AC_LANG_CPLUSPLUS
436 >  AC_TRY_RUN([
437 >    #define HAVE_MMAP_ANONYMOUS
438 >    #define CONFIGURE_TEST_VM_MAP
439 >    #define TEST_VM_MMAP_ANON
440 >    #include "vm_alloc.cpp"
441 >  ], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
442 >  dnl When cross-compiling, do not assume anything.
443 >  ac_cv_mmap_anonymous="guessing no"
444 >  )
445 >  AC_LANG_RESTORE
446 >  ]
447 > )
448 > AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous",
449 >  [Define if <sys/mman.h> defines MAP_ANONYMOUS and mmap()'ing with MAP_ANONYMOUS works.])
450 >
451 > AC_CACHE_CHECK([whether mprotect works],
452 >  ac_cv_mprotect_works, [
453 >  AC_LANG_SAVE
454 >  AC_LANG_CPLUSPLUS
455 >  ac_cv_mprotect_works=yes
456 >  dnl First the tests that should segfault
457 >  for test_def in NONE_READ NONE_WRITE READ_WRITE; do
458 >    AC_TRY_RUN([
459 >      #define CONFIGURE_TEST_VM_MAP
460 >      #define TEST_VM_PROT_$test_def
461 >      #include "vm_alloc.cpp"
462 >    ], ac_cv_mprotect_works=no, rm -f core,
463 >    dnl When cross-compiling, do not assume anything
464 >    ac_cv_mprotect_works="guessing no"
465 >    )
466 >  done
467 >  AC_TRY_RUN([
468 >    #define CONFIGURE_TEST_VM_MAP
469 >    #define TEST_VM_PROT_RDWR_WRITE
470 >    #include "vm_alloc.cpp"
471 >  ], , ac_cv_mprotect_works=no,
472 >  dnl When cross-compiling, do not assume anything
473 >  ac_cv_mprotect_works="guessing no"
474 >  )
475 >  AC_LANG_RESTORE
476 >  ]
477 > )
478 >
479 > dnl Remove support for mmap() if mprotect() does not work
480 > if [[ "x$have_mmap_vm" = "xyes" ]]; then
481 >  case $ac_cv_mprotect_works in
482 >    *yes) have_mmap_vm=yes;;
483 >    *no) have_mmap_vm=no;;
484 >  esac
485 > fi
486 > AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm,
487 >  [Define if your system has a working mmap()-based memory allocator.])
488 >
489 > fi dnl HAVE_MMAP_VM
490 >
491 > dnl Check if we can modify the __PAGEZERO segment for use as Low Memory
492 > AC_CACHE_CHECK([whether __PAGEZERO can be Low Memory area 0x0000-0x3000],
493 >  ac_cv_pagezero_hack, [
494 >  ac_cv_pagezero_hack=no
495 >  if AC_TRY_COMMAND([Darwin/testlmem.sh 0x3000]); then
496 >    ac_cv_pagezero_hack=yes
497 >    dnl might as well skip the test for mmap-able low memory
498 >    ac_cv_can_map_lm=no
499 >  fi
500 > ])
501 > AC_TRANSLATE_DEFINE(PAGEZERO_HACK, "$ac_cv_pagezero_hack",
502 >  [Define if the __PAGEZERO Mach-O Low Memory Globals hack works on this system.])
503 >
504 > dnl Check if we can mmap 0x3000 bytes from 0x0000
505 > AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x3000],
506 >  ac_cv_can_map_lm, [
507 >  AC_LANG_SAVE
508 >  AC_LANG_CPLUSPLUS
509 >  AC_TRY_RUN([
510 >    #include "vm_alloc.cpp"
511 >    int main(void) { /* returns 0 if we could map the lowmem globals */
512 >      volatile char * lm = 0;
513 >      if (vm_init() < 0) exit(1);
514 >      if (vm_acquire_fixed(0, 0x2000) < 0) exit(1);
515 >      lm[0] = 'z';
516 >      if (vm_release((char *)lm, 0x2000) < 0) exit(1);
517 >      vm_exit(); exit(0);
518 >    }
519 >  ], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
520 >  dnl When cross-compiling, do not assume anything.
521 >  ac_cv_can_map_lm="guessing no"
522 >  )
523 >  AC_LANG_RESTORE
524 >  ]
525 > )
526 >
527 > dnl Check signal handlers need to be reinstalled
528 > AC_CACHE_CHECK([whether signal handlers need to be reinstalled],
529 >  ac_cv_signal_need_reinstall, [
530 >  AC_LANG_SAVE
531 >  AC_LANG_CPLUSPLUS
532 >  AC_TRY_RUN([
533 >    #include <stdlib.h>
534 >    #ifdef HAVE_UNISTD_H
535 >    #include <unistd.h>
536 >    #endif
537 >    #include <signal.h>
538 >    static int handled_signal = 0;
539 >    RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
540 >    int main(void) { /* returns 0 if signals need not to be reinstalled */
541 >      signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
542 >      exit(handled_signal == 2);
543 >    }
544 >  ], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
545 >  dnl When cross-compiling, do not assume anything.
546 >  ac_cv_signal_need_reinstall="guessing yes"
547 >  )
548 >  AC_LANG_RESTORE
549 >  ]
550 > )
551 > AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall",
552 >  [Define if your system requires signals to be reinstalled.])
553 >
554 > dnl Check if sigaction handlers need to be reinstalled
555 > AC_CACHE_CHECK([whether sigaction handlers need to be reinstalled],
556 >  ac_cv_sigaction_need_reinstall, [
557 >  AC_LANG_SAVE
558 >  AC_LANG_CPLUSPLUS
559 >  AC_TRY_RUN([
560 >    #include <stdlib.h>
561 >    #ifdef HAVE_UNISTD_H
562 >    #include <unistd.h>
563 >    #endif
564 >    #include <signal.h>
565 >    static int handled_signal = 0;
566 >    RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
567 >    typedef RETSIGTYPE (*signal_handler)(int);
568 >    static signal_handler mysignal(int sig, signal_handler handler) {
569 >      struct sigaction old_sa;
570 >      struct sigaction new_sa;
571 >      new_sa.sa_handler = handler;
572 >      return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
573 >    }
574 >    int main(void) { /* returns 0 if signals need not to be reinstalled */
575 >      mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
576 >      exit(handled_signal == 2);
577 >    }
578 >  ], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
579 >  dnl When cross-compiling, do not assume anything.
580 >  ac_cv_sigaction_need_reinstall="guessing yes"
581 >  )
582 >  AC_LANG_RESTORE
583 >  ]
584 > )
585 > AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall",
586 >  [Define if your system requires sigactions to be reinstalled.])
587 >
588 > dnl Check if Mach exceptions supported.
589 > AC_CACHE_CHECK([whether your system supports Mach exceptions],
590 >  ac_cv_have_mach_exceptions, [
591 >  AC_LANG_SAVE
592 >  AC_LANG_CPLUSPLUS
593 >  AC_TRY_RUN([
594 >    #define HAVE_MACH_EXCEPTIONS 1
595 >    #define CONFIGURE_TEST_SIGSEGV_RECOVERY
596 >    #include "vm_alloc.cpp"
597 >    #include "sigsegv.cpp"
598 >  ],
599 >  ac_cv_have_mach_exceptions=yes,
600 >  ac_cv_have_mach_exceptions=no,
601 >  dnl When cross-compiling, do not assume anything.
602 >  ac_cv_have_mach_exceptions=no
603 >  )
604 >  AC_LANG_RESTORE
605 >  ]
606 > )
607 > if [[ "$ac_cv_have_mach_exceptions" = "yes" ]]; then
608 >  sigsegv_recovery=mach
609 > fi
610 > AC_TRANSLATE_DEFINE(HAVE_MACH_EXCEPTIONS, "$ac_cv_have_mach_exceptions",
611 >  [Define if your system supports Mach exceptions.])
612 >
613 > dnl Otherwise, check if extended signals are supported.
614 > if [[ -z "$sigsegv_recovery" ]]; then
615 >  AC_CACHE_CHECK([whether your system supports extended signal handlers],
616 >    ac_cv_have_extended_signals, [
617 >    AC_LANG_SAVE
618 >    AC_LANG_CPLUSPLUS
619 >    AC_TRY_RUN([
620 >      #define HAVE_SIGINFO_T 1
621 >      #define CONFIGURE_TEST_SIGSEGV_RECOVERY
622 >      #include "vm_alloc.cpp"
623 >      #include "sigsegv.cpp"
624 >    ],
625 >    ac_cv_have_extended_signals=yes,
626 >    ac_cv_have_extended_signals=no,
627 >    dnl When cross-compiling, do not assume anything.
628 >    ac_cv_have_extended_signals=no
629 >    )
630 >    AC_LANG_RESTORE
631 >    ]
632 >  )
633 >  if [[ "$ac_cv_have_extended_signals" = "yes" ]]; then
634 >    sigsegv_recovery=siginfo
635 >  fi
636 >  AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
637 >    [Define if your system support extended signals.])
638 > fi
639 >
640 > dnl Otherwise, check for subterfuges.
641 > if [[ -z "$sigsegv_recovery" ]]; then
642 >  AC_CACHE_CHECK([whether we then have a subterfuge for your system],
643 >  ac_cv_have_sigcontext_hack, [
644 >    AC_LANG_SAVE
645 >    AC_LANG_CPLUSPLUS
646 >    AC_TRY_RUN([
647 >      #define HAVE_SIGCONTEXT_SUBTERFUGE 1
648 >      #define CONFIGURE_TEST_SIGSEGV_RECOVERY
649 >      #include "vm_alloc.cpp"
650 >      #include "sigsegv.cpp"
651 >    ],
652 >    ac_cv_have_sigcontext_hack=yes,
653 >    ac_cv_have_sigcontext_hack=no,
654 >    dnl When cross-compiling, do not assume anything.
655 >    ac_cv_have_sigcontext_hack=no
656 >    )
657 >    AC_LANG_RESTORE
658 >  ])
659 >  if [[ "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
660 >    sigsegv_recovery=sigcontext
661 >  fi
662 >  AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack",
663 >    [Define if we know a hack to replace siginfo_t->si_addr member.])
664 > fi
665 >
666 > dnl Check if we can ignore the fault (instruction skipping in SIGSEGV handler)
667 > AC_CACHE_CHECK([whether we can skip instruction in SIGSEGV handler],
668 >  ac_cv_have_skip_instruction, [
669 >  AC_LANG_SAVE
670 >  AC_LANG_CPLUSPLUS
671 >  AC_TRY_RUN([
672 >    #define HAVE_SIGSEGV_SKIP_INSTRUCTION 1
673 >    #define CONFIGURE_TEST_SIGSEGV_RECOVERY
674 >    #include "vm_alloc.cpp"
675 >    #include "sigsegv.cpp"
676 >  ], ac_cv_have_skip_instruction=yes, ac_cv_have_skip_instruction=no,
677 >  dnl When cross-compiling, do not assume anything.
678 >  ac_cv_have_skip_instruction=no
679 >  )
680 >  AC_LANG_RESTORE
681 >  ]
682 > )
683 > AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$ac_cv_have_skip_instruction",
684 >  [Define if we can ignore the fault (instruction skipping in SIGSEGV handler).])
685 >
686 > dnl Can we do Video on SEGV Signals ?
687 > CAN_VOSF=no
688 > if [[ -n "$sigsegv_recovery" ]]; then
689 >  CAN_VOSF=yes
690 > fi
691 >
692 > dnl Enable VOSF screen updates with this feature is requested and feasible
693 > if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then
694 >    AC_DEFINE(ENABLE_VOSF, 1, [Define if using video enabled on SEGV signals.])
695   else
696 <  SYSSRCS="../emul_ppc/emul_ppc.cpp"
696 >    WANT_VOSF=no
697 > fi
698 >
699 > dnl Platform specific binary postprocessor
700 > AC_PATH_PROG(BLESS, "true")
701 > if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
702 >  BLESS=Darwin/lowmem
703 >  LDFLAGS="$LDFLAGS -pagezero_size 0x3000"
704 > fi
705 >
706 > dnl Check for GCC 2.7 or higher.
707 > HAVE_GCC27=no
708 > AC_MSG_CHECKING(for GCC 2.7 or higher)
709 > AC_EGREP_CPP(xyes,
710 > [#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
711 >  xyes
712 > #endif
713 > ], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
714 >
715 > dnl Check for GCC 3.0 or higher.
716 > HAVE_GCC30=no
717 > AC_MSG_CHECKING(for GCC 3.0 or higher)
718 > AC_EGREP_CPP(xyes,
719 > [#if __GNUC__ >= 3
720 >  xyes
721 > #endif
722 > ], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
723 >
724 > dnl Check for ICC.
725 > AC_MSG_CHECKING(for ICC)
726 > HAVE_ICC=no
727 > if $CXX -V -v 2>&1 | grep -q "Intel(R) C++ Compiler"; then
728 >  HAVE_ICC=yes
729 > fi
730 > AC_MSG_RESULT($HAVE_ICC)
731 >
732 > # Test if the compiler can generate ELF objects
733 > AC_CACHE_CHECK([whether the compiler can generate ELF objects],
734 >  ac_cv_elf_objects, [
735 >  echo 'int i;' > conftest.$ac_ext
736 >  ac_cv_elf_objects=no
737 >  if AC_TRY_EVAL(ac_compile); then
738 >    case `/usr/bin/file conftest.$ac_objext` in
739 >    *"ELF"*)
740 >      ac_cv_elf_objects=yes
741 >      ;;
742 >    esac
743 >  fi
744 >  rm -rf conftest*
745 > ])
746 > ELF_OBJECTS=$ac_cv_elf_objects
747 >
748 > dnl CPU emulator sources
749 > if [[ "x$EMULATED_PPC" = "xyes" ]]; then
750 >  CPUSRCS="\
751 >    ../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
752 >    ../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
753 >    ../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
754 >    ../kpx_cpu/src/cpu/ppc/ppc-translate.cpp"
755 >  CPPFLAGS="$CPPFLAGS -I../kpx_cpu/include -I../kpx_cpu/src"
756 >
757 >  dnl Enable JIT compiler, if possible
758 >  if [[ "x$WANT_JIT" = "xyes" ]]; then
759 >    AC_CACHE_CHECK([whether dyngen can be used],
760 >      ac_cv_use_dyngen, [
761 >      case $host_cpu:$ELF_OBJECTS in
762 >      powerpc:yes)
763 >        ac_cv_use_dyngen=yes
764 >        ;;
765 >      x86_64:yes)
766 >        ac_cv_use_dyngen=yes
767 >        ;;
768 >      i?86:yes)
769 >        ac_cv_use_dyngen=yes
770 >        ;;
771 >      *:*)
772 >        ac_cv_use_dyngen=no
773 >        ;;
774 >      esac
775 >      dnl Check for a suitable synthetic opcodes compiler (icc is faking itself as gcc 3.2.2)
776 >      if [[ -z "$DYNGEN_CC" ]]; then
777 >        if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
778 >          DYNGEN_CC=$CXX
779 >        else
780 >          for p in /usr/bin /usr/local/bin; do
781 >            gxx="$p/g++"
782 >            if [[ -x "$gxx" ]]; then
783 >              DYNGEN_CC="$gxx"
784 >            fi
785 >          done
786 >        fi
787 >      fi
788 >      if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include <limits>' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then
789 >        ac_cv_use_dyngen=no
790 >      fi
791 >    ])
792 >    if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
793 >      case $host_cpu in
794 >      i?86)
795 >        DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
796 >        if [[ "x$HAVE_GCC30" = "xyes" ]]; then
797 >          DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
798 >        else
799 >          DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
800 >        fi
801 >        saved_CPPFLAGS=$CPPFLAGS
802 >        CPPFLAGS="$CPPFLAGS -mmmx"
803 >        AC_CHECK_HEADERS(mmintrin.h,  [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -mmmx"])
804 >        CPPFLAGS="$CPPFLAGS -msse"
805 >        AC_CHECK_HEADERS(xmmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse"])
806 >        CPPFLAGS="$CPPFLAGS -msse2"
807 >        AC_CHECK_HEADERS(emmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse2"])
808 >        CPPFLAGS=$saved_CPPFLAGS
809 >        ;;
810 >      x86_64)
811 >        AC_CHECK_HEADERS(mmintrin.h xmmintrin.h emmintrin.h)
812 >        ;;
813 >      esac
814 >      DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000"
815 >      if [[ "x$HAVE_GCC30" = "xyes" ]]; then
816 >        DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
817 >      fi
818 >    else
819 >      WANT_JIT=no
820 >    fi
821 >    AC_TRANSLATE_DEFINE(ENABLE_DYNGEN, $ac_cv_use_dyngen, [Define to enable dyngen engine])
822 >    if [[ "x$WANT_JIT" = "xyes" ]]; then
823 >      DYNGENSRCS="\
824 >        ../kpx_cpu/src/cpu/jit/dyngen.c \
825 >        ../kpx_cpu/src/cpu/jit/cxxdemangle.cpp"
826 >      CPUSRCS="\
827 >        ../kpx_cpu/src/cpu/jit/jit-cache.cpp \
828 >        ../kpx_cpu/src/cpu/jit/basic-dyngen.cpp \
829 >        ../kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp $CPUSRCS"
830 >    fi
831 >  fi
832 >  CPUSRCS="$CPUSRCS ../kpx_cpu/sheepshaver_glue.cpp"
833 > else
834 >  WANT_JIT=no
835 > fi
836 > if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
837 >  AC_CACHE_CHECK([whether static data regions are executable],
838 >    ac_cv_have_static_data_exec, [
839 >    AC_TRY_RUN([int main(void) {
840 > #if defined(__powerpc__)
841 >      static unsigned int p[8] = {0x4e800020,};
842 >      asm volatile("dcbst 0,%0" : : "r" (p) : "memory");
843 >      asm volatile("sync" : : : "memory");
844 >      asm volatile("icbi 0,%0" : : "r" (p) : "memory");
845 >      asm volatile("sync" : : : "memory");
846 >      asm volatile("isync" : : : "memory");
847 >      ((void (*)(void))p)();
848 >      return 0;
849 > #endif
850 >      return 1;
851 >    }], ac_cv_have_static_data_exec=yes, ac_cv_have_static_data_exec=no,
852 >    dnl When cross-compiling, do not assume anything.
853 >    ac_cv_have_static_data_exec=no
854 >    )
855 >  ])
856 > fi
857 > AC_TRANSLATE_DEFINE(HAVE_STATIC_DATA_EXEC, "$ac_cv_have_static_data_exec",
858 >  [Define if your system marks static data pages as executable.])
859 >
860 > if [[ "x$WANT_JIT" = "xyes" ]]; then
861 >  CPPFLAGS="$CPPFLAGS -DUSE_JIT"
862   fi
170 – SYSSRCS="$SYSSRCS $SEMSRCS $UISRCS $MONSRCS"
863  
864   dnl Generate Makefile.
865 + AC_SUBST(DYNGENSRCS)
866 + AC_SUBST(DYNGEN_CC)
867 + AC_SUBST(DYNGEN_OP_FLAGS)
868   AC_SUBST(SYSSRCS)
869 + AC_SUBST(CPUSRCS)
870 + AC_SUBST(BLESS)
871   AC_OUTPUT(Makefile)
872  
873   dnl Print summary.
874   echo
875   echo SheepShaver configuration summary:
876   echo
877 + echo SDL support ...................... : $SDL_SUPPORT
878   echo XFree86 DGA support .............. : $WANT_XF86_DGA
879   echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
880 + echo Using PowerPC emulator ........... : $EMULATED_PPC
881 + echo Enable JIT compiler .............. : $WANT_JIT
882 + echo Enable video on SEGV signals ..... : $WANT_VOSF
883   echo ESD sound support ................ : $WANT_ESD
884   echo GTK user interface ............... : $WANT_GTK
885   echo mon debugger support ............. : $WANT_MON
886 + echo Bad memory access recovery type .. : $sigsegv_recovery
887   echo
888   echo "Configuration done. Now type \"make\"."

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