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root/cebix/SheepShaver/src/Unix/configure.in

Comparing SheepShaver/src/Unix/configure.in (file contents):
Revision 1.6 by gbeauche, 2003-09-07T14:21:20Z vs.
Revision 1.30 by gbeauche, 2004-06-27T22:12:52Z

#	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 29 | 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.
#	Line 43 | Line 56 | 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)
48	–	mon_srcdir=../../../mon/src
70		if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
71		AC_MSG_RESULT(yes)
72		AC_DEFINE(ENABLE_MON)
#	Line 69 | Line 90 | fi
90		dnl Checks for libraries.
91		AC_CHECK_LIB(posix4, sem_init)
92
93	<	dnl We need X11.
94	<	AC_PATH_XTRA
95	<	if [[ "x$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 $X_EXTRA_LIBS"
129	>	fi
130
131		dnl We need pthreads on non-PowerPC systems. Try libpthread first, then libc_r (FreeBSD), then PTL.
132		HAVE_PTHREADS=yes
133	<	if [[ "x$EMULATED_PPC" = "xyes" ]]; 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 89 | Line 144 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
144		])
145		])
146		AC_CHECK_FUNCS(pthread_cancel)
147	<	fi
148	<
149	<	dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
150	<	SEMSRC=
151	<	AC_CHECK_FUNCS(sem_init, , [
147	>	AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
148	>	AC_CHECK_FUNCS(pthread_mutexattr_settype)
149	>	AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
150	>	if [[ "x$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 122 | 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 155 | Line 216 | AC_HEADER_SYS_WAIT
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 174 | Line 236 | 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 AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES)
277	+	AC_DEFUN(AC_CHECK_FRAMEWORK, [
278	+	AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl
279	+	AC_CACHE_CHECK([whether compiler supports framework $1],
280	+	ac_Framework, [
281	+	saved_LIBS="$LIBS"
282	+	LIBS="$LIBS -framework $1"
283	+	AC_TRY_LINK(
284	+	[$2], [int main(void) { return 0; }],
285	+	[AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"]
286	+	)
287	+	])
288	+	AS_IF([test AS_VAR_GET(ac_Framework) = yes],
289	+	[AC_DEFINE(AS_TR_CPP(HAVE_FRAMEWORK_$1), 1, [Define if framework $1 is available.])]
290	+	)
291	+	AS_VAR_POPDEF([ac_Framework])dnl
292	+	])
293	+
294	+	dnl Check for some MacOS X frameworks
295	+	AC_CHECK_FRAMEWORK(Carbon, [#include <Carbon/Carbon.h>])
296	+	AC_CHECK_FRAMEWORK(IOKit, [#include <IOKit/IOKitLib.h>])
297
298		dnl Select system-dependant sources.
299	<	if [[ "x$EMULATED_PPC" = "xno" ]]; then
300	<	SYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
299	>	SERIALSRC=serial_unix.cpp
300	>	ETHERSRC=../dummy/ether_dummy.cpp
301	>	SCSISRC=../dummy/scsi_dummy.cpp
302	>	AUDIOSRC=../dummy/audio_dummy.cpp
303	>	EXTRASYSSRCS=
304	>	case "$target_os" in
305	>	linux*)
306	>	ETHERSRC=Linux/ether_linux.cpp
307	>	AUDIOSRC=audio_oss_esd.cpp
308	>	SCSISRC=Linux/scsi_linux.cpp
309	>	if [[ "x$EMULATED_PPC" = "xno" ]]; then
310	>	EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
311	>	fi
312	>	;;
313	>	darwin*)
314	>	if [[ "x$EMULATED_PPC" = "xno" ]]; then
315	>	EXTRASYSSRCS="Darwin/paranoia.cpp Linux/asm_linux.S"
316	>	fi
317	>	if [[ "x$ac_cv_framework_IOKit" = "xyes" ]]; then
318	>	EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/sys_darwin.cpp"
319	>	fi
320	>	;;
321	>	esac
322	>
323	>	dnl SDL overrides
324	>	if [[ "x$WANT_SDL" = "xyes" ]]; then
325	>	AC_DEFINE(USE_SDL, 1, [Define to enble SDL support])
326	>	fi
327	>	if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
328	>	VIDEOSRCS="../SDL/video_sdl.cpp"
329	>	AC_DEFINE(USE_SDL_VIDEO, 1, [Define to enable SDL video graphics support])
330	>	KEYCODES="../SDL/keycodes"
331	>	if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
332	>	EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
333	>	else
334	>	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
335	>	fi
336		else
337	<	SYSSRCS="../kpx_cpu/sheepshaver_glue.cpp \
338	<	../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
339	<	../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
191	<	../kpx_cpu/src/cpu/ppc/ppc-execute.cpp"
192	<	CPPFLAGS="$CPPFLAGS -I../kpx_cpu -I../kpx_cpu/include -I../kpx_cpu/src -I../kpx_cpu/src/cpu"
337	>	VIDEOSRCS="video_x.cpp"
338	>	KEYCODES="keycodes"
339	>	EXTRASYSSRCS="$EXTRASYSSRCS clip_unix.cpp"
340		fi
341	<	SYSSRCS="$SYSSRCS $SEMSRCS $UISRCS $MONSRCS"
341	>
342	>	SYSSRCS="$VIDEOSRCS $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
343
344		dnl Define a macro that translates a yesno-variable into a C macro definition
345		dnl to be put into the config.h file
#	Line 204 | Line 352 | AC_DEFUN(AC_TRANSLATE_DEFINE, [
352		fi
353		])
354
355	+	dnl Check that the host supports TUN/TAP devices
356	+	AC_CACHE_CHECK([whether TUN/TAP is supported],
357	+	ac_cv_tun_tap_support, [
358	+	AC_TRY_COMPILE([
359	+	#if defined(HAVE_LINUX_IF_H) && defined(HAVE_LINUX_IF_TUN_H)
360	+	#include <linux/if.h>
361	+	#include <linux/if_tun.h>
362	+	#endif
363	+	#if defined(HAVE_NET_IF_H) && defined(HAVE_NET_IF_TUN_H)
364	+	#include <net/if.h>
365	+	#include <net/if_tun.h>
366	+	#endif
367	+	], [
368	+	struct ifreq ifr;
369	+	memset(&ifr, 0, sizeof(ifr));
370	+	ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
371	+	],
372	+	ac_cv_tun_tap_support=yes, ac_cv_tun_tap_support=no
373	+	)
374	+	])
375	+	AC_TRANSLATE_DEFINE(ENABLE_TUNTAP, "$ac_cv_tun_tap_support",
376	+	[Define if your system supports TUN/TAP devices.])
377	+
378		dnl Various checks if the system supports vm_allocate() and the like functions.
379		have_mach_vm=no
380		if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
#	Line 350 | Line 521 | AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_
521
522		fi dnl HAVE_MMAP_VM
523
524	<	dnl Check if we can mmap 0x2000 bytes from 0x0000
525	<	AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x2000],
524	>	dnl Check if we can modify the __PAGEZERO segment for use as Low Memory
525	>	AC_CACHE_CHECK([whether __PAGEZERO can be Low Memory area 0x0000-0x3000],
526	>	ac_cv_pagezero_hack, [
527	>	ac_cv_pagezero_hack=no
528	>	if AC_TRY_COMMAND([Darwin/testlmem.sh 0x3000]); then
529	>	ac_cv_pagezero_hack=yes
530	>	dnl might as well skip the test for mmap-able low memory
531	>	ac_cv_can_map_lm=no
532	>	fi
533	>	])
534	>	AC_TRANSLATE_DEFINE(PAGEZERO_HACK, "$ac_cv_pagezero_hack",
535	>	[Define if the __PAGEZERO Mach-O Low Memory Globals hack works on this system.])
536	>
537	>	dnl Check if we can mmap 0x3000 bytes from 0x0000
538	>	AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x3000],
539		ac_cv_can_map_lm, [
540		AC_LANG_SAVE
541		AC_LANG_CPLUSPLUS
#	Line 434 | Line 618 | AC_CACHE_CHECK([whether sigaction handle
618		AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall",
619		[Define if your system requires sigactions to be reinstalled.])
620
621	<	dnl Check if extended signals are supported.
622	<	AC_CACHE_CHECK([whether your system supports extended signal handlers],
623	<	ac_cv_have_extended_signals, [
621	>	dnl Check if Mach exceptions supported.
622	>	AC_CACHE_CHECK([whether your system supports Mach exceptions],
623	>	ac_cv_have_mach_exceptions, [
624		AC_LANG_SAVE
625		AC_LANG_CPLUSPLUS
626		AC_TRY_RUN([
627	<	#define HAVE_SIGINFO_T 1
627	>	#define HAVE_MACH_EXCEPTIONS 1
628		#define CONFIGURE_TEST_SIGSEGV_RECOVERY
629		#include "vm_alloc.cpp"
630		#include "sigsegv.cpp"
631	<	], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
631	>	],
632	>	ac_cv_have_mach_exceptions=yes,
633	>	ac_cv_have_mach_exceptions=no,
634		dnl When cross-compiling, do not assume anything.
635	<	ac_cv_have_extended_signals=no
635	>	ac_cv_have_mach_exceptions=no
636		)
637		AC_LANG_RESTORE
638		]
639		)
640	<	AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
641	<	[Define if your system support extended signals.])
640	>	if [[ "$ac_cv_have_mach_exceptions" = "yes" ]]; then
641	>	sigsegv_recovery=mach
642	>	fi
643	>	AC_TRANSLATE_DEFINE(HAVE_MACH_EXCEPTIONS, "$ac_cv_have_mach_exceptions",
644	>	[Define if your system supports Mach exceptions.])
645	>
646	>	dnl Otherwise, check if extended signals are supported.
647	>	if [[ -z "$sigsegv_recovery" ]]; then
648	>	AC_CACHE_CHECK([whether your system supports extended signal handlers],
649	>	ac_cv_have_extended_signals, [
650	>	AC_LANG_SAVE
651	>	AC_LANG_CPLUSPLUS
652	>	AC_TRY_RUN([
653	>	#define HAVE_SIGINFO_T 1
654	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
655	>	#include "vm_alloc.cpp"
656	>	#include "sigsegv.cpp"
657	>	],
658	>	ac_cv_have_extended_signals=yes,
659	>	ac_cv_have_extended_signals=no,
660	>	dnl When cross-compiling, do not assume anything.
661	>	ac_cv_have_extended_signals=no
662	>	)
663	>	AC_LANG_RESTORE
664	>	]
665	>	)
666	>	if [[ "$ac_cv_have_extended_signals" = "yes" ]]; then
667	>	sigsegv_recovery=siginfo
668	>	fi
669	>	AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
670	>	[Define if your system support extended signals.])
671	>	fi
672
673		dnl Otherwise, check for subterfuges.
674	<	if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
674	>	if [[ -z "$sigsegv_recovery" ]]; then
675		AC_CACHE_CHECK([whether we then have a subterfuge for your system],
676		ac_cv_have_sigcontext_hack, [
677		AC_LANG_SAVE
#	Line 465 | Line 681 | if [[ "x$ac_cv_have_extended_signals" =
681		#define CONFIGURE_TEST_SIGSEGV_RECOVERY
682		#include "vm_alloc.cpp"
683		#include "sigsegv.cpp"
684	<	], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
684	>	],
685	>	ac_cv_have_sigcontext_hack=yes,
686	>	ac_cv_have_sigcontext_hack=no,
687		dnl When cross-compiling, do not assume anything.
688		ac_cv_have_sigcontext_hack=no
689		)
690		AC_LANG_RESTORE
691		])
692	+	if [[ "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
693	+	sigsegv_recovery=sigcontext
694	+	fi
695		AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack",
696		[Define if we know a hack to replace siginfo_t->si_addr member.])
697		fi
#	Line 497 | Line 718 | AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_IN
718
719		dnl Can we do Video on SEGV Signals ?
720		CAN_VOSF=no
721	<	if [[ "$ac_cv_have_extended_signals" = "yes" -o "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
721	>	if [[ -n "$sigsegv_recovery" ]]; then
722		CAN_VOSF=yes
723		fi
724
#	Line 508 | Line 729 | else
729		WANT_VOSF=no
730		fi
731
732	+	dnl Platform specific binary postprocessor
733	+	AC_PATH_PROG(BLESS, "true")
734	+	if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
735	+	BLESS=Darwin/lowmem
736	+	LDFLAGS="$LDFLAGS -pagezero_size 0x3000"
737	+	fi
738	+
739	+	dnl Check for GCC 2.7 or higher.
740	+	HAVE_GCC27=no
741	+	AC_MSG_CHECKING(for GCC 2.7 or higher)
742	+	AC_EGREP_CPP(xyes,
743	+	[#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
744	+	xyes
745	+	#endif
746	+	], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
747	+
748	+	dnl Check for GCC 3.0 or higher.
749	+	HAVE_GCC30=no
750	+	AC_MSG_CHECKING(for GCC 3.0 or higher)
751	+	AC_EGREP_CPP(xyes,
752	+	[#if __GNUC__ >= 3
753	+	xyes
754	+	#endif
755	+	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
756	+
757	+	dnl Check for ICC.
758	+	AC_MSG_CHECKING(for ICC)
759	+	HAVE_ICC=no
760	+	if $CXX -V -v 2>&1 | grep -q "Intel(R) C++ Compiler"; then
761	+	HAVE_ICC=yes
762	+	fi
763	+	AC_MSG_RESULT($HAVE_ICC)
764	+
765	+	# Test if the compiler can generate ELF objects
766	+	AC_CACHE_CHECK([whether the compiler can generate ELF objects],
767	+	ac_cv_elf_objects, [
768	+	echo 'int i;' > conftest.$ac_ext
769	+	ac_cv_elf_objects=no
770	+	if AC_TRY_EVAL(ac_compile); then
771	+	case `/usr/bin/file conftest.$ac_objext` in
772	+	*"ELF"*)
773	+	ac_cv_elf_objects=yes
774	+	;;
775	+	esac
776	+	fi
777	+	rm -rf conftest*
778	+	])
779	+	ELF_OBJECTS=$ac_cv_elf_objects
780	+
781	+	dnl CPU emulator sources
782	+	if [[ "x$EMULATED_PPC" = "xyes" ]]; then
783	+	CPUSRCS="\
784	+	../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
785	+	../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
786	+	../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
787	+	../kpx_cpu/src/cpu/ppc/ppc-translate.cpp"
788	+	CPPFLAGS="$CPPFLAGS -I../kpx_cpu/include -I../kpx_cpu/src"
789	+
790	+	dnl Enable JIT compiler, if possible
791	+	if [[ "x$WANT_JIT" = "xyes" ]]; then
792	+	AC_CACHE_CHECK([whether dyngen can be used],
793	+	ac_cv_use_dyngen, [
794	+	case $host_cpu:$ELF_OBJECTS in
795	+	powerpc:yes)
796	+	ac_cv_use_dyngen=yes
797	+	;;
798	+	x86_64:yes)
799	+	ac_cv_use_dyngen=yes
800	+	;;
801	+	i?86:yes)
802	+	ac_cv_use_dyngen=yes
803	+	;;
804	+	*:*)
805	+	ac_cv_use_dyngen=no
806	+	;;
807	+	esac
808	+	dnl Check for a suitable synthetic opcodes compiler (icc is faking itself as gcc 3.2.2)
809	+	if [[ -z "$DYNGEN_CC" ]]; then
810	+	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
811	+	DYNGEN_CC=$CXX
812	+	else
813	+	for p in /usr/bin /usr/local/bin; do
814	+	gxx="$p/g++"
815	+	if [[ -x "$gxx" ]]; then
816	+	DYNGEN_CC="$gxx"
817	+	fi
818	+	done
819	+	fi
820	+	fi
821	+	if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include <limits>' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then
822	+	ac_cv_use_dyngen=no
823	+	fi
824	+	])
825	+	if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
826	+	case $host_cpu in
827	+	i?86)
828	+	DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
829	+	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
830	+	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
831	+	else
832	+	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
833	+	fi
834	+	saved_CPPFLAGS=$CPPFLAGS
835	+	CPPFLAGS="$CPPFLAGS -mmmx"
836	+	AC_CHECK_HEADERS(mmintrin.h,  [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -mmmx"])
837	+	CPPFLAGS="$CPPFLAGS -msse"
838	+	AC_CHECK_HEADERS(xmmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse"])
839	+	CPPFLAGS="$CPPFLAGS -msse2"
840	+	AC_CHECK_HEADERS(emmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse2"])
841	+	CPPFLAGS=$saved_CPPFLAGS
842	+	;;
843	+	x86_64)
844	+	AC_CHECK_HEADERS(mmintrin.h xmmintrin.h emmintrin.h)
845	+	;;
846	+	esac
847	+	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000"
848	+	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
849	+	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
850	+	fi
851	+	else
852	+	WANT_JIT=no
853	+	fi
854	+	AC_TRANSLATE_DEFINE(ENABLE_DYNGEN, $ac_cv_use_dyngen, [Define to enable dyngen engine])
855	+	if [[ "x$WANT_JIT" = "xyes" ]]; then
856	+	DYNGENSRCS="\
857	+	../kpx_cpu/src/cpu/jit/dyngen.c \
858	+	../kpx_cpu/src/cpu/jit/cxxdemangle.cpp"
859	+	CPUSRCS="\
860	+	../kpx_cpu/src/cpu/jit/jit-cache.cpp \
861	+	../kpx_cpu/src/cpu/jit/basic-dyngen.cpp \
862	+	../kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp $CPUSRCS"
863	+	fi
864	+	fi
865	+	CPUSRCS="$CPUSRCS ../kpx_cpu/sheepshaver_glue.cpp"
866	+	else
867	+	WANT_JIT=no
868	+	fi
869	+	if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
870	+	AC_CACHE_CHECK([whether static data regions are executable],
871	+	ac_cv_have_static_data_exec, [
872	+	AC_TRY_RUN([int main(void) {
873	+	#if defined(__powerpc__)
874	+	static unsigned int p[8] = {0x4e800020,};
875	+	asm volatile("dcbst 0,%0" : : "r" (p) : "memory");
876	+	asm volatile("sync" : : : "memory");
877	+	asm volatile("icbi 0,%0" : : "r" (p) : "memory");
878	+	asm volatile("sync" : : : "memory");
879	+	asm volatile("isync" : : : "memory");
880	+	((void (*)(void))p)();
881	+	return 0;
882	+	#endif
883	+	return 1;
884	+	}], ac_cv_have_static_data_exec=yes, ac_cv_have_static_data_exec=no,
885	+	dnl When cross-compiling, do not assume anything.
886	+	ac_cv_have_static_data_exec=no
887	+	)
888	+	])
889	+	fi
890	+	AC_TRANSLATE_DEFINE(HAVE_STATIC_DATA_EXEC, "$ac_cv_have_static_data_exec",
891	+	[Define if your system marks static data pages as executable.])
892	+
893	+	if [[ "x$WANT_JIT" = "xyes" ]]; then
894	+	CPPFLAGS="$CPPFLAGS -DUSE_JIT"
895	+	fi
896	+
897		dnl Generate Makefile.
898	+	AC_SUBST(DYNGENSRCS)
899	+	AC_SUBST(DYNGEN_CC)
900	+	AC_SUBST(DYNGEN_OP_FLAGS)
901		AC_SUBST(SYSSRCS)
902	+	AC_SUBST(CPUSRCS)
903	+	AC_SUBST(BLESS)
904	+	AC_SUBST(KEYCODES)
905		AC_OUTPUT(Makefile)
906
907		dnl Print summary.
908		echo
909		echo SheepShaver configuration summary:
910		echo
911	+	echo SDL support ...................... : $SDL_SUPPORT
912		echo XFree86 DGA support .............. : $WANT_XF86_DGA
913		echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
914		echo Using PowerPC emulator ........... : $EMULATED_PPC
915	+	echo Enable JIT compiler .............. : $WANT_JIT
916		echo Enable video on SEGV signals ..... : $WANT_VOSF
917		echo ESD sound support ................ : $WANT_ESD
918		echo GTK user interface ............... : $WANT_GTK
919		echo mon debugger support ............. : $WANT_MON
920	+	echo Bad memory access recovery type .. : $sigsegv_recovery
921		echo
922		echo "Configuration done. Now type \"make\"."

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