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

Comparing SheepShaver/src/Unix/configure.in (file contents):
Revision 1.10 by gbeauche, 2003-11-27T00:26:33Z vs.
Revision 1.27 by gbeauche, 2004-06-24T16:13:53Z

#	Line 13 | Line 13 | 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_ENABLE(sdl-video,    [  --enable-sdl-video      use SDL for video graphics [default=no]], [WANT_SDL_VIDEO=$enableval], [WANT_SDL_VIDEO=no])
19		AC_ARG_WITH(esd,            [  --with-esd              support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
20		AC_ARG_WITH(gtk,            [  --with-gtk              use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes])
21		AC_ARG_WITH(mon,            [  --with-mon              use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
22	+	AC_ARG_WITH(dgcc,           [  --with-dgcc=COMPILER    use C++ COMPILER to compile synthetic opcodes], [DYNGEN_CC=$withval])
23
24		dnl Checks for programs.
25		AC_PROG_CC
#	Line 34 | Line 36 | AC_EGREP_CPP(yes,
36		#ifdef __powerpc__
37		yes
38		#endif
39	+	#ifdef __ppc__
40	+	yes
41	+	#endif
42		], [AC_MSG_RESULT(yes); HAVE_PPC=yes], AC_MSG_RESULT(no))
43
44		dnl We use native CPU if possible.
#	Line 48 | Line 53 | fi
53
54		dnl We use mon if possible.
55		MONSRCS=
56	+	case "x$WANT_MON" in
57	+	x/* | x.*)
58	+	mon_srcdir=$WANT_MON
59	+	WANT_MON=yes
60	+	;;
61	+	xyes)
62	+	mon_srcdir=../../../mon/src
63	+	;;
64	+	esac
65		if [[ "x$WANT_MON" = "xyes" ]]; then
66		AC_MSG_CHECKING(for mon)
53	–	mon_srcdir=../../../mon/src
67		if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
68		AC_MSG_RESULT(yes)
69		AC_DEFINE(ENABLE_MON)
#	Line 74 | Line 87 | fi
87		dnl Checks for libraries.
88		AC_CHECK_LIB(posix4, sem_init)
89
90	<	dnl We need X11.
91	<	AC_PATH_XTRA
92	<	if [[ "x$no_x" = "xyes" ]]; then
93	<	AC_MSG_ERROR([You need X11 to run SheepShaver.])
94	<	fi
95	<	CFLAGS="$CFLAGS $X_CFLAGS"
96	<	CXXFLAGS="$CXXFLAGS $X_CFLAGS"
97	<	LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS"
90	>	dnl Do we need SDL?
91	>	WANT_SDL=no
92	>	SDL_SUPPORT="none"
93	>	if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
94	>	WANT_SDL=yes
95	>	WANT_XF86_DGA=no
96	>	WANT_XF86_VIDMODE=no
97	>	WANT_FBDEV_DGA=no
98	>	SDL_SUPPORT="video"
99	>	fi
100	>	if [[ "x$WANT_SDL" = "xyes" ]]; then
101	>	AC_PATH_PROG(sdl_config, "sdl-config")
102	>	if [[ -n "$sdl_config" ]]; then
103	>	sdl_cflags=`$sdl_config --cflags`
104	>	sdl_libs=`$sdl_config --libs`
105	>	CFLAGS="$CFLAGS $sdl_cflags"
106	>	CXXFLAGS="$CXXFLAGS $sdl_cflags"
107	>	LIBS="$LIBS $sdl_libs"
108	>	else
109	>	WANT_SDL=no
110	>	fi
111	>	fi
112	>
113	>	dnl We need X11, if not using SDL.
114	>	if [[ "x$WANT_SDL" = "xno" ]]; then
115	>	AC_PATH_XTRA
116	>	if [[ "x$no_x" = "xyes" ]]; then
117	>	AC_MSG_ERROR([You need X11 to run SheepShaver.])
118	>	fi
119	>	CFLAGS="$CFLAGS $X_CFLAGS"
120	>	CXXFLAGS="$CXXFLAGS $X_CFLAGS"
121	>	LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS"
122	>	fi
123
124		dnl We need pthreads on non-PowerPC systems. Try libpthread first, then libc_r (FreeBSD), then PTL.
125		HAVE_PTHREADS=yes
126	<	if [[ "x$EMULATED_PPC" = "xyes" ]]; then
126	>	case $EMULATED_PPC:$target_os in
127	>	no:linux*)
128	>	dnl We do have our own pthread_cancel() implementation
129	>	AC_DEFINE(HAVE_PTHREAD_CANCEL, 1, [Define if you have the pthread_cancel function.])
130	>	;;
131	>	*:*)
132		AC_CHECK_LIB(pthread, pthread_create, , [
133		AC_CHECK_LIB(c_r, pthread_create, , [
134		AC_CHECK_LIB(PTL, pthread_create, , [
#	Line 94 | Line 137 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
137		])
138		])
139		AC_CHECK_FUNCS(pthread_cancel)
140	+	AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
141	+	AC_CHECK_FUNCS(pthread_mutexattr_settype)
142	+	AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
143		if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
144		AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
145		fi
146	<	fi
147	<
148	<	dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
103	<	SEMSRC=
104	<	AC_CHECK_FUNCS(sem_init, , [
146	>	dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
147	>	SEMSRC=
148	>	AC_CHECK_FUNCS(sem_init, , [
149		if test "x$HAVE_PTHREADS" = "xyes"; then
150		SEMSRC=posix_sem.cpp
151		fi
152	<	])
152	>	])
153	>	;;
154	>	esac
155
156		dnl We use XFree86 DGA if possible.
157		if [[ "x$WANT_XF86_DGA" = "xyes" ]]; then
#	Line 130 | Line 176 | if [[ "x$WANT_XF86_VIDMODE" = "xyes" ]];
176		fi
177
178		dnl We use GTK+ if possible.
179	<	UISRCS=
179	>	UISRCS=../dummy/prefs_editor_dummy.cpp
180		if [[ "x$WANT_GTK" = "xyes" ]]; then
181		AM_PATH_GTK(1.2.0, [
182		AC_DEFINE(ENABLE_GTK)
#	Line 163 | Line 209 | AC_HEADER_SYS_WAIT
209		AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h)
210		AC_CHECK_HEADERS(sys/time.h sys/times.h)
211		AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h)
212	+	AC_CHECK_HEADERS(linux/if.h linux/if_tun.h net/if.h net/if_tun.h)
213
214		dnl Checks for typedefs, structures, and compiler characteristics.
215		AC_C_BIGENDIAN
#	Line 182 | Line 229 | AC_TYPE_SIGNAL
229		AC_HEADER_TIME
230		AC_STRUCT_TM
231
232	+	dnl Check whether struct sigaction has sa_restorer member.
233	+	AC_CACHE_CHECK([whether struct sigaction has sa_restorer],
234	+	ac_cv_signal_sa_restorer, [
235	+	AC_TRY_COMPILE([
236	+	#include <signal.h>
237	+	], [struct sigaction sa; sa.sa_restorer = 0;],
238	+	ac_cv_signal_sa_restorer=yes, ac_cv_signal_sa_restorer=no,
239	+	dnl When cross-compiling, do not assume anything.
240	+	ac_cv_signal_sa_restorer=no
241	+	)
242	+	])
243	+	if [[ "x$ac_cv_signal_sa_restorer" = "xyes" ]]; then
244	+	AC_DEFINE(HAVE_SIGNAL_SA_RESTORER)
245	+	fi
246	+
247		dnl Checks for library functions.
248	<	AC_CHECK_FUNCS(strdup cfmakeraw)
249	<	AC_CHECK_FUNCS(nanosleep clock_gettime timer_create)
248	>	AC_CHECK_FUNCS(strdup strlcpy cfmakeraw)
249	>	AC_CHECK_FUNCS(nanosleep)
250		AC_CHECK_FUNCS(sigaction signal)
251		AC_CHECK_FUNCS(mmap mprotect munmap)
252		AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
253	+	AC_CHECK_FUNCS(posix_memalign memalign valloc)
254	+
255	+	dnl Darwin seems to define mach_task_self() instead of task_self().
256	+	AC_CHECK_FUNCS(mach_task_self task_self)
257	+
258	+	dnl We need clock_gettime() for better performance but it may drag
259	+	dnl libpthread in, which we don't want for native ppc mode
260	+	case $EMULATED_PPC:$target_os in
261	+	no:linux*)
262	+	;;
263	+	*:*)
264	+	AC_SEARCH_LIBS(clock_gettime, [rt posix4])
265	+	AC_CHECK_FUNCS(clock_gettime)
266	+	;;
267	+	esac
268
269		dnl Select system-dependant sources.
270	<	if [[ "x$EMULATED_PPC" = "xno" ]]; then
271	<	SYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
270	>	SERIALSRC=serial_unix.cpp
271	>	ETHERSRC=../dummy/ether_dummy.cpp
272	>	SCSISRC=../dummy/scsi_dummy.cpp
273	>	AUDIOSRC=../dummy/audio_dummy.cpp
274	>	EXTRASYSSRCS=
275	>	case "$target_os" in
276	>	linux*)
277	>	ETHERSRC=Linux/ether_linux.cpp
278	>	AUDIOSRC=audio_oss_esd.cpp
279	>	SCSISRC=Linux/scsi_linux.cpp
280	>	if [[ "x$EMULATED_PPC" = "xno" ]]; then
281	>	EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
282	>	fi
283	>	;;
284	>	darwin*)
285	>	if [[ "x$EMULATED_PPC" = "xno" ]]; then
286	>	EXTRASYSSRCS="Darwin/paranoia.cpp Linux/asm_linux.S"
287	>	fi
288	>	;;
289	>	esac
290	>
291	>	dnl SDL overrides
292	>	if [[ "x$WANT_SDL" = "xyes" ]]; then
293	>	AC_DEFINE(USE_SDL, 1, [Define to enble SDL support])
294	>	fi
295	>	if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
296	>	VIDEOSRCS="../SDL/video_sdl.cpp ../dummy/clip_dummy.cpp"
297	>	AC_DEFINE(USE_SDL_VIDEO, 1, [Define to enable SDL video graphics support])
298	>	else
299	>	VIDEOSRCS="video_x.cpp clip_unix.cpp"
300		fi
301	<	SYSSRCS="$SYSSRCS $SEMSRCS $UISRCS $MONSRCS"
301	>
302	>	SYSSRCS="$VIDEOSRCS $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
303
304		dnl Define a macro that translates a yesno-variable into a C macro definition
305		dnl to be put into the config.h file
#	Line 206 | Line 312 | AC_DEFUN(AC_TRANSLATE_DEFINE, [
312		fi
313		])
314
315	+	dnl Check that the host supports TUN/TAP devices
316	+	AC_CACHE_CHECK([whether TUN/TAP is supported],
317	+	ac_cv_tun_tap_support, [
318	+	AC_TRY_COMPILE([
319	+	#if defined(HAVE_LINUX_IF_H) && defined(HAVE_LINUX_IF_TUN_H)
320	+	#include <linux/if.h>
321	+	#include <linux/if_tun.h>
322	+	#endif
323	+	#if defined(HAVE_NET_IF_H) && defined(HAVE_NET_IF_TUN_H)
324	+	#include <net/if.h>
325	+	#include <net/if_tun.h>
326	+	#endif
327	+	], [
328	+	struct ifreq ifr;
329	+	memset(&ifr, 0, sizeof(ifr));
330	+	ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
331	+	],
332	+	ac_cv_tun_tap_support=yes, ac_cv_tun_tap_support=no
333	+	)
334	+	])
335	+	AC_TRANSLATE_DEFINE(ENABLE_TUNTAP, "$ac_cv_tun_tap_support",
336	+	[Define if your system supports TUN/TAP devices.])
337	+
338		dnl Various checks if the system supports vm_allocate() and the like functions.
339		have_mach_vm=no
340		if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
#	Line 352 | Line 481 | AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_
481
482		fi dnl HAVE_MMAP_VM
483
484	<	dnl Check if we can mmap 0x2000 bytes from 0x0000
485	<	AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x2000],
484	>	dnl Check if we can modify the __PAGEZERO segment for use as Low Memory
485	>	AC_CACHE_CHECK([whether __PAGEZERO can be Low Memory area 0x0000-0x3000],
486	>	ac_cv_pagezero_hack, [
487	>	ac_cv_pagezero_hack=no
488	>	if AC_TRY_COMMAND([Darwin/testlmem.sh 0x3000]); then
489	>	ac_cv_pagezero_hack=yes
490	>	dnl might as well skip the test for mmap-able low memory
491	>	ac_cv_can_map_lm=no
492	>	fi
493	>	])
494	>	AC_TRANSLATE_DEFINE(PAGEZERO_HACK, "$ac_cv_pagezero_hack",
495	>	[Define if the __PAGEZERO Mach-O Low Memory Globals hack works on this system.])
496	>
497	>	dnl Check if we can mmap 0x3000 bytes from 0x0000
498	>	AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x3000],
499		ac_cv_can_map_lm, [
500		AC_LANG_SAVE
501		AC_LANG_CPLUSPLUS
#	Line 436 | Line 578 | AC_CACHE_CHECK([whether sigaction handle
578		AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall",
579		[Define if your system requires sigactions to be reinstalled.])
580
581	<	dnl Check if extended signals are supported.
582	<	AC_CACHE_CHECK([whether your system supports extended signal handlers],
583	<	ac_cv_have_extended_signals, [
581	>	dnl Check if Mach exceptions supported.
582	>	AC_CACHE_CHECK([whether your system supports Mach exceptions],
583	>	ac_cv_have_mach_exceptions, [
584		AC_LANG_SAVE
585		AC_LANG_CPLUSPLUS
586		AC_TRY_RUN([
587	<	#define HAVE_SIGINFO_T 1
587	>	#define HAVE_MACH_EXCEPTIONS 1
588		#define CONFIGURE_TEST_SIGSEGV_RECOVERY
589		#include "vm_alloc.cpp"
590		#include "sigsegv.cpp"
591	<	], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
591	>	],
592	>	ac_cv_have_mach_exceptions=yes,
593	>	ac_cv_have_mach_exceptions=no,
594		dnl When cross-compiling, do not assume anything.
595	<	ac_cv_have_extended_signals=no
595	>	ac_cv_have_mach_exceptions=no
596		)
597		AC_LANG_RESTORE
598		]
599		)
600	<	AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
601	<	[Define if your system support extended signals.])
600	>	if [[ "$ac_cv_have_mach_exceptions" = "yes" ]]; then
601	>	sigsegv_recovery=mach
602	>	fi
603	>	AC_TRANSLATE_DEFINE(HAVE_MACH_EXCEPTIONS, "$ac_cv_have_mach_exceptions",
604	>	[Define if your system supports Mach exceptions.])
605	>
606	>	dnl Otherwise, check if extended signals are supported.
607	>	if [[ -z "$sigsegv_recovery" ]]; then
608	>	AC_CACHE_CHECK([whether your system supports extended signal handlers],
609	>	ac_cv_have_extended_signals, [
610	>	AC_LANG_SAVE
611	>	AC_LANG_CPLUSPLUS
612	>	AC_TRY_RUN([
613	>	#define HAVE_SIGINFO_T 1
614	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
615	>	#include "vm_alloc.cpp"
616	>	#include "sigsegv.cpp"
617	>	],
618	>	ac_cv_have_extended_signals=yes,
619	>	ac_cv_have_extended_signals=no,
620	>	dnl When cross-compiling, do not assume anything.
621	>	ac_cv_have_extended_signals=no
622	>	)
623	>	AC_LANG_RESTORE
624	>	]
625	>	)
626	>	if [[ "$ac_cv_have_extended_signals" = "yes" ]]; then
627	>	sigsegv_recovery=siginfo
628	>	fi
629	>	AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
630	>	[Define if your system support extended signals.])
631	>	fi
632
633		dnl Otherwise, check for subterfuges.
634	<	if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
634	>	if [[ -z "$sigsegv_recovery" ]]; then
635		AC_CACHE_CHECK([whether we then have a subterfuge for your system],
636		ac_cv_have_sigcontext_hack, [
637		AC_LANG_SAVE
#	Line 467 | Line 641 | if [[ "x$ac_cv_have_extended_signals" =
641		#define CONFIGURE_TEST_SIGSEGV_RECOVERY
642		#include "vm_alloc.cpp"
643		#include "sigsegv.cpp"
644	<	], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
644	>	],
645	>	ac_cv_have_sigcontext_hack=yes,
646	>	ac_cv_have_sigcontext_hack=no,
647		dnl When cross-compiling, do not assume anything.
648		ac_cv_have_sigcontext_hack=no
649		)
650		AC_LANG_RESTORE
651		])
652	+	if [[ "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
653	+	sigsegv_recovery=sigcontext
654	+	fi
655		AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack",
656		[Define if we know a hack to replace siginfo_t->si_addr member.])
657		fi
#	Line 499 | Line 678 | AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_IN
678
679		dnl Can we do Video on SEGV Signals ?
680		CAN_VOSF=no
681	<	if [[ "$ac_cv_have_extended_signals" = "yes" -o "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
681	>	if [[ -n "$sigsegv_recovery" ]]; then
682		CAN_VOSF=yes
683	+	case $target_os in
684	+	darwin*)
685	+	dnl Signal handlers in darwin are way too slow since the whole
686	+	dnl machine state (GPRs, FPRs, VRs) is forcibly saved.
687	+	dnl In other words, VOSF is slower than static window refreshes.
688	+	CAN_VOSF=no
689	+	;;
690	+	esac
691		fi
692
693		dnl Enable VOSF screen updates with this feature is requested and feasible
#	Line 510 | Line 697 | else
697		WANT_VOSF=no
698		fi
699
700	+	dnl Platform specific binary postprocessor
701	+	AC_PATH_PROG(BLESS, "true")
702	+	if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
703	+	BLESS=Darwin/lowmem
704	+	LDFLAGS="$LDFLAGS -pagezero_size 0x3000"
705	+	fi
706	+
707		dnl Check for GCC 2.7 or higher.
708		HAVE_GCC27=no
709		AC_MSG_CHECKING(for GCC 2.7 or higher)
#	Line 528 | Line 722 | AC_EGREP_CPP(xyes,
722		#endif
723		], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
724
725	+	dnl Check for ICC.
726	+	AC_MSG_CHECKING(for ICC)
727	+	HAVE_ICC=no
728	+	if $CXX -V -v 2>&1 | grep -q "Intel(R) C++ Compiler"; then
729	+	HAVE_ICC=yes
730	+	fi
731	+	AC_MSG_RESULT($HAVE_ICC)
732	+
733		# Test if the compiler can generate ELF objects
734		AC_CACHE_CHECK([whether the compiler can generate ELF objects],
735		ac_cv_elf_objects, [
#	Line 544 | Line 746 | AC_CACHE_CHECK([whether the compiler can
746		])
747		ELF_OBJECTS=$ac_cv_elf_objects
748
547	–	dnl FIXME: forcibly disable JIT for now
548	–	WANT_JIT=no
549	–
749		dnl CPU emulator sources
750		if [[ "x$EMULATED_PPC" = "xyes" ]]; then
751		CPUSRCS="\
#	Line 574 | Line 773 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
773		ac_cv_use_dyngen=no
774		;;
775		esac
776	+	dnl Check for a suitable synthetic opcodes compiler (icc is faking itself as gcc 3.2.2)
777	+	if [[ -z "$DYNGEN_CC" ]]; then
778	+	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
779	+	DYNGEN_CC=$CXX
780	+	else
781	+	for p in /usr/bin /usr/local/bin; do
782	+	gxx="$p/g++"
783	+	if [[ -x "$gxx" ]]; then
784	+	DYNGEN_CC="$gxx"
785	+	fi
786	+	done
787	+	fi
788	+	fi
789	+	if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include <limits>' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then
790	+	ac_cv_use_dyngen=no
791	+	fi
792		])
793		if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
794		case $host_cpu in
795	<	i?86:yes)
795	>	i?86)
796		DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
797		if [[ "x$HAVE_GCC30" = "xyes" ]]; then
798		DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
799		else
800		DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
801		fi
802	+	saved_CPPFLAGS=$CPPFLAGS
803	+	CPPFLAGS="$CPPFLAGS -mmmx"
804	+	AC_CHECK_HEADERS(mmintrin.h,  [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -mmmx"])
805	+	CPPFLAGS="$CPPFLAGS -msse"
806	+	AC_CHECK_HEADERS(xmmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse"])
807	+	CPPFLAGS="$CPPFLAGS -msse2"
808	+	AC_CHECK_HEADERS(emmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse2"])
809	+	CPPFLAGS=$saved_CPPFLAGS
810	+	;;
811	+	x86_64)
812	+	AC_CHECK_HEADERS(mmintrin.h xmmintrin.h emmintrin.h)
813		;;
814		esac
815	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=2000"
815	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000"
816		if [[ "x$HAVE_GCC30" = "xyes" ]]; then
817		DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
818		fi
#	Line 605 | Line 831 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
831		fi
832		fi
833		CPUSRCS="$CPUSRCS ../kpx_cpu/sheepshaver_glue.cpp"
834	+	else
835	+	WANT_JIT=no
836		fi
837		if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
838		AC_CACHE_CHECK([whether static data regions are executable],
#	Line 620 | Line 848 | if [[ "x$ac_cv_use_dyngen" = "xyes" ]];
848		((void (*)(void))p)();
849		return 0;
850		#endif
623	–	#if defined(__i386__)
624	–	static unsigned char p[] = {0xc3};
625	–	((void (*)(void))p)();
626	–	return 0;
627	–	#endif
851		return 1;
852		}], ac_cv_have_static_data_exec=yes, ac_cv_have_static_data_exec=no,
853		dnl When cross-compiling, do not assume anything.
#	Line 635 | Line 858 | fi
858		AC_TRANSLATE_DEFINE(HAVE_STATIC_DATA_EXEC, "$ac_cv_have_static_data_exec",
859		[Define if your system marks static data pages as executable.])
860
861	+	if [[ "x$WANT_JIT" = "xyes" ]]; then
862	+	CPPFLAGS="$CPPFLAGS -DUSE_JIT"
863	+	fi
864	+
865		dnl Generate Makefile.
866		AC_SUBST(DYNGENSRCS)
867	+	AC_SUBST(DYNGEN_CC)
868		AC_SUBST(DYNGEN_OP_FLAGS)
869		AC_SUBST(SYSSRCS)
870		AC_SUBST(CPUSRCS)
871	+	AC_SUBST(BLESS)
872		AC_OUTPUT(Makefile)
873
874		dnl Print summary.
875		echo
876		echo SheepShaver configuration summary:
877		echo
878	+	echo SDL support ...................... : $SDL_SUPPORT
879		echo XFree86 DGA support .............. : $WANT_XF86_DGA
880		echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
881		echo Using PowerPC emulator ........... : $EMULATED_PPC
#	Line 654 | Line 884 | echo Enable video on SEGV signals .....
884		echo ESD sound support ................ : $WANT_ESD
885		echo GTK user interface ............... : $WANT_GTK
886		echo mon debugger support ............. : $WANT_MON
887	+	echo Bad memory access recovery type .. : $sigsegv_recovery
888		echo
889		echo "Configuration done. Now type \"make\"."

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