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root/cebix/BasiliskII/src/Unix/configure.ac

Comparing BasiliskII/src/Unix/configure.ac (file contents):
Revision 1.18 by gbeauche, 2003-08-17T10:16:23Z vs.
Revision 1.45 by gbeauche, 2005-05-14T17:40:05Z

#	Line 6 | Line 6 | AC_CONFIG_SRCDIR(main_unix.cpp)
6		AC_PREREQ(2.52)
7		AC_CONFIG_HEADER(config.h)
8
9	+	dnl Aliases for PACKAGE and VERSION macros.
10	+	AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE_NAME", [Define this program name.])
11	+	AC_DEFINE_UNQUOTED(VERSION, "$PACKAGE_VERSION", [Define this program version.])
12	+
13	+	dnl Some systems do not put corefiles in the currect directory, avoid saving
14	+	dnl cores for the configure tests since some are intended to dump core.
15	+	ulimit -c 0
16	+
17		dnl Video options.
18		AC_ARG_ENABLE(xf86-dga,      [  --enable-xf86-dga       use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
19		AC_ARG_ENABLE(xf86-vidmode,  [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
20		AC_ARG_ENABLE(fbdev-dga,     [  --enable-fbdev-dga      use direct frame buffer access via /dev/fb [default=yes]], [WANT_FBDEV_DGA=$enableval], [WANT_FBDEV_DGA=yes])
21		AC_ARG_ENABLE(vosf,          [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
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	+	AC_ARG_ENABLE(sdl-audio,     [  --enable-sdl-audio      use SDL for audio [default=no]], [WANT_SDL_AUDIO=$enableval], [WANT_SDL_AUDIO=no])
27	+
28		dnl JIT compiler options.
29		AC_ARG_ENABLE(jit-compiler,  [  --enable-jit-compiler   enable JIT compiler [default=no]], [WANT_JIT=$enableval], [WANT_JIT=no])
30		AC_ARG_ENABLE(jit-debug,     [  --enable-jit-debug      activate native code disassemblers [default=no]], [WANT_JIT_DEBUG=$enableval], [WANT_JIT_DEBUG=no])
#	Line 86 | Line 99 | AC_PROG_CPP
99		AC_PROG_CXX
100		AC_PROG_MAKE_SET
101		AC_PROG_INSTALL
102	+	AC_PROG_EGREP
103
104		dnl We use mon if possible.
105		MONSRCS=
#	Line 104 | Line 118 | if [[ "x$WANT_MON" = "xyes" ]]; then
118		AC_CHECK_LIB(Hcurses, tgetent, ,
119		AC_CHECK_LIB(curses, tgetent))))))
120		AC_CHECK_LIB(readline, readline)
107	–	AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
121		else
122		AC_MSG_RESULT(no)
123		AC_MSG_WARN([Could not find mon, ignoring --with-mon.])
#	Line 115 | Line 128 | fi
128		dnl Checks for libraries.
129		AC_CHECK_LIB(posix4, sem_init)
130		AC_CHECK_LIB(rt, timer_create)
131	+	AC_CHECK_LIB(rt, shm_open)
132	+
133	+	dnl Do we need SDL?
134	+	WANT_SDL=no
135	+	if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
136	+	WANT_SDL=yes
137	+	WANT_XF86_DGA=no
138	+	WANT_XF86_VIDMODE=no
139	+	WANT_FBDEV_DGA=no
140	+	SDL_SUPPORT="$SDL_SUPPORT video"
141	+	fi
142	+	if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; then
143	+	WANT_SDL=yes
144	+	SDL_SUPPORT="$SDL_SUPPORT audio"
145	+	fi
146	+	if [[ "x$WANT_SDL" = "xyes" ]]; then
147	+	AC_PATH_PROG(sdl_config, "sdl-config")
148	+	if [[ -n "$sdl_config" ]]; then
149	+	case $target_os in
150	+	# Special treatment for Cygwin so that we can still use the POSIX layer
151	+	*cygwin*)
152	+	sdl_cflags="-I`$sdl_config --prefix`/include/SDL"
153	+	sdl_libs="-L`$sdl_config --exec-prefix`/lib -lSDL"
154	+	;;
155	+	*)
156	+	sdl_cflags=`$sdl_config --cflags`
157	+	if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
158	+	sdl_libs=`$sdl_config --static-libs`
159	+	else
160	+	sdl_libs=`$sdl_config --libs`
161	+	fi
162	+	;;
163	+	esac
164	+	CFLAGS="$CFLAGS $sdl_cflags"
165	+	CXXFLAGS="$CXXFLAGS $sdl_cflags"
166	+	LIBS="$LIBS $sdl_libs"
167	+	else
168	+	WANT_SDL=no
169	+	fi
170	+	SDL_SUPPORT=`echo "$SDL_SUPPORT" | sed -e "s/^ //"`
171	+	else
172	+	SDL_SUPPORT="none"
173	+	fi
174
175	<	dnl We need X11.
176	<	AC_PATH_XTRA
177	<	if [[ "x$no_x" = "xyes" ]]; then
178	<	AC_MSG_ERROR([You need X11 to run Basilisk II.])
179	<	fi
180	<	CFLAGS="$CFLAGS $X_CFLAGS"
181	<	CXXFLAGS="$CXXFLAGS $X_CFLAGS"
182	<	LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS"
175	>	dnl We need X11, if not using SDL.
176	>	if [[ "x$WANT_SDL" = "xno" ]]; then
177	>	AC_PATH_XTRA
178	>	if [[ "x$no_x" = "xyes" ]]; then
179	>	AC_MSG_ERROR([You need X11 to run Basilisk II.])
180	>	fi
181	>	CFLAGS="$CFLAGS $X_CFLAGS"
182	>	CXXFLAGS="$CXXFLAGS $X_CFLAGS"
183	>	LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS"
184	>	fi
185
186		dnl We want pthreads. Try libpthread first, then libc_r (FreeBSD), then PTL.
187		HAVE_PTHREADS=yes
#	Line 220 | Line 278 | AC_SYS_LARGEFILE
278
279		dnl Checks for header files.
280		AC_HEADER_STDC
281	<	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h)
281	>	AC_CHECK_HEADERS(unistd.h fcntl.h sys/types.h sys/time.h sys/mman.h mach/mach.h)
282	>	AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
283	>	AC_CHECK_HEADERS(sys/socket.h sys/ioctl.h sys/filio.h sys/bitypes.h sys/wait.h)
284	>	AC_CHECK_HEADERS(sys/poll.h sys/select.h)
285	>	AC_CHECK_HEADERS(arpa/inet.h)
286	>	AC_CHECK_HEADERS(linux/if.h linux/if_tun.h net/if.h net/if_tun.h, [], [], [
287	>	#ifdef HAVE_SYS_TYPES_H
288	>	#include <sys/types.h>
289	>	#endif
290	>	#ifdef HAVE_SYS_SOCKET_H
291	>	#include <sys/socket.h>
292	>	#endif
293	>	])
294	>	AC_CHECK_HEADERS(AvailabilityMacros.h)
295
296		dnl Checks for typedefs, structures, and compiler characteristics.
297		AC_C_BIGENDIAN
#	Line 235 | Line 306 | AC_CHECK_SIZEOF(double, 8)
306		AC_CHECK_SIZEOF(long double, 12)
307		AC_CHECK_SIZEOF(void *, 4)
308		AC_TYPE_OFF_T
309	<	AC_CHECK_TYPE(loff_t, off_t)
310	<	AC_CHECK_TYPE(caddr_t, [char *])
309	>	AC_CHECK_TYPES(loff_t)
310	>	AC_CHECK_TYPES(caddr_t)
311		AC_TYPE_SIZE_T
312		AC_TYPE_SIGNAL
313		AC_HEADER_TIME
#	Line 260 | Line 331 | if [[ "x$ac_cv_type_socklen_t" != "xyes"
331		fi
332
333		dnl Checks for library functions.
334	<	AC_CHECK_FUNCS(strdup cfmakeraw)
334	>	AC_CHECK_FUNCS(strdup strerror cfmakeraw)
335		AC_CHECK_FUNCS(clock_gettime timer_create)
336		AC_CHECK_FUNCS(sigaction signal)
337		AC_CHECK_FUNCS(mmap mprotect munmap)
338		AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
339	+	AC_CHECK_FUNCS(poll inet_aton)
340
341		dnl Darwin seems to define mach_task_self() instead of task_self().
342		AC_CHECK_FUNCS(mach_task_self task_self)
#	Line 291 | Line 363 | mips-sony-bsd|mips-sony-newsos4)
363		*-*-sco3.2v5*)
364		no_dev_ptmx=1
365		;;
366	+	*-*-cygwin*)
367	+	no_dev_ptmx=1
368	+	;;
369		esac
370
371		if test -z "$no_dev_ptmx" ; then
#	Line 313 | Line 388 | AC_CHECK_FILE([/dev/ptc],
388		dnl (end of code from openssh-3.2.2p1 configure.ac)
389
390
391	+	dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES)
392	+	AC_DEFUN(AC_CHECK_FRAMEWORK, [
393	+	AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl
394	+	AC_CACHE_CHECK([whether compiler supports framework $1],
395	+	ac_Framework, [
396	+	saved_LIBS="$LIBS"
397	+	LIBS="$LIBS -framework $1"
398	+	AC_TRY_LINK(
399	+	[$2], [int main(void) { return 0; }],
400	+	[AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"]
401	+	)
402	+	])
403	+	AS_IF([test AS_VAR_GET(ac_Framework) = yes],
404	+	[AC_DEFINE(AS_TR_CPP(HAVE_FRAMEWORK_$1), 1, [Define if framework $1 is available.])]
405	+	)
406	+	AS_VAR_POPDEF([ac_Framework])dnl
407	+	])
408	+
409	+	dnl Check for some MacOS X frameworks
410	+	AC_CHECK_FRAMEWORK(Carbon, [#include <Carbon/Carbon.h>])
411	+	AC_CHECK_FRAMEWORK(IOKit, [#include <IOKit/IOKitLib.h>])
412	+
413		dnl Select system-dependant source files.
414		SERIALSRC=serial_unix.cpp
415		ETHERSRC=../dummy/ether_dummy.cpp
416		SCSISRC=../dummy/scsi_dummy.cpp
417		AUDIOSRC=../dummy/audio_dummy.cpp
418	+	EXTFSSRC=extfs_unix.cpp
419		EXTRASYSSRCS=
420		CAN_NATIVE_M68K=no
421		case "$target_os" in
#	Line 351 | Line 449 | freebsd*)
449		;;
450		netbsd*)
451		CAN_NATIVE_M68K=yes
452	+	ETHERSRC=ether_unix.cpp
453		;;
454		solaris*)
455		AUDIOSRC=Solaris/audio_solaris.cpp
#	Line 373 | Line 472 | irix*)
472		dnl Do a test compile of an empty function
473		AC_TRY_COMPILE(,, [AC_MSG_RESULT(yes); HAVE_IPA=yes], AC_MSG_RESULT(no))
474		CFLAGS="$ocflags"
475	<
475	>	;;
476	>	darwin*)
477	>	ETHERSRC=ether_unix.cpp
478	>	if [[ "x$ac_cv_framework_IOKit" = "xyes" ]]; then
479	>	EXTRASYSSRCS="../MacOSX/sys_darwin.cpp"
480	>	fi
481	>	if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
482	>	EXTFSSRC=../MacOSX/extfs_macosx.mm
483	>	fi
484	>	;;
485	>	cygwin*)
486	>	SERIALSRC="../dummy/serial_dummy.cpp"
487	>	EXTRASYSSRCS="../Windows/BasiliskII.rc"
488		;;
489		esac
490
491	+	dnl Is the slirp library supported?
492	+	if [[ "x$ETHERSRC" = "xether_unix.cpp" ]]; then
493	+	AC_DEFINE(HAVE_SLIRP, 1, [Define if slirp library is supported])
494	+	SLIRP_SRCS="\
495	+	../slirp/bootp.c     ../slirp/ip_output.c  ../slirp/tcp_input.c  \
496	+	../slirp/cksum.c     ../slirp/mbuf.c       ../slirp/tcp_output.c \
497	+	../slirp/debug.c     ../slirp/misc.c       ../slirp/tcp_subr.c   \
498	+	../slirp/if.c        ../slirp/sbuf.c       ../slirp/tcp_timer.c  \
499	+	../slirp/ip_icmp.c   ../slirp/slirp.c      ../slirp/tftp.c       \
500	+	../slirp/ip_input.c  ../slirp/socket.c     ../slirp/udp.c"
501	+	fi
502	+	AC_SUBST(SLIRP_SRCS)
503	+
504	+	dnl SDL overrides
505	+	if [[ "x$WANT_SDL" = "xyes" ]]; then
506	+	AC_DEFINE(USE_SDL, 1, [Define to enble SDL support])
507	+	fi
508	+	if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
509	+	AC_DEFINE(USE_SDL_VIDEO, 1, [Define to enable SDL video graphics support])
510	+	VIDEOSRCS="../SDL/video_sdl.cpp"
511	+	KEYCODES="../SDL/keycodes"
512	+	if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
513	+	EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
514	+	else
515	+	case "$target_os" in
516	+	cygwin*)
517	+	EXTRASYSSRCS="$EXTRASYSSRCS ../Windows/clip_windows.cpp"
518	+	;;
519	+	*)
520	+	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
521	+	;;
522	+	esac
523	+	fi
524	+	else
525	+	VIDEOSRCS="video_x.cpp"
526	+	KEYCODES="keycodes"
527	+	EXTRASYSSRCS="$EXTRASYSSRCS clip_unix.cpp"
528	+	fi
529	+	if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; then
530	+	AC_DEFINE(USE_SDL_AUDIO, 1, [Define to enable SDL audio support])
531	+	AUDIOSRC="../SDL/audio_sdl.cpp"
532	+	fi
533	+
534		dnl Use 68k CPU natively?
535		WANT_NATIVE_M68K=no
536		if [[ "x$HAVE_M68K" = "xyes" -a "x$CAN_NATIVE_M68K" = "xyes" ]]; then
#	Line 391 | Line 545 | if [[ "x$HAVE_PTHREADS" = "xno" ]]; then
545		ETHERSRC=../dummy/ether_dummy.cpp
546		AUDIOSRC=../dummy/audio_dummy.cpp
547		fi
548	<	SYSSRCS="$SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
548	>	SYSSRCS="$VIDEOSRCS $EXTFSSRC $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
549
550		dnl Define a macro that translates a yesno-variable into a C macro definition
551		dnl to be put into the config.h file
#	Line 404 | Line 558 | AC_DEFUN(AC_TRANSLATE_DEFINE, [
558		fi
559		])
560
561	+	dnl Check that the host supports TUN/TAP devices
562	+	AC_CACHE_CHECK([whether TUN/TAP is supported],
563	+	ac_cv_tun_tap_support, [
564	+	AC_TRY_COMPILE([
565	+	#if defined(HAVE_LINUX_IF_H) && defined(HAVE_LINUX_IF_TUN_H)
566	+	#include <linux/if.h>
567	+	#include <linux/if_tun.h>
568	+	#endif
569	+	#if defined(HAVE_NET_IF_H) && defined(HAVE_NET_IF_TUN_H)
570	+	#include <net/if.h>
571	+	#include <net/if_tun.h>
572	+	#endif
573	+	], [
574	+	struct ifreq ifr;
575	+	memset(&ifr, 0, sizeof(ifr));
576	+	ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
577	+	],
578	+	ac_cv_tun_tap_support=yes, ac_cv_tun_tap_support=no
579	+	)
580	+	])
581	+	AC_TRANSLATE_DEFINE(ENABLE_TUNTAP, "$ac_cv_tun_tap_support",
582	+	[Define if your system supports TUN/TAP devices.])
583	+
584		dnl Various checks if the system supports vm_allocate() and the like functions.
585		have_mach_vm=no
586		if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
#	Line 550 | Line 727 | AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_
727
728		fi dnl HAVE_MMAP_VM
729
730	+	dnl Check if we can modify the __PAGEZERO segment for use as Low Memory
731	+	AC_CACHE_CHECK([whether __PAGEZERO can be Low Memory area 0x0000-0x2000],
732	+	ac_cv_pagezero_hack, [
733	+	ac_cv_pagezero_hack=no
734	+	if AC_TRY_COMMAND([Darwin/testlmem.sh 0x2000]); then
735	+	ac_cv_pagezero_hack=yes
736	+	dnl might as well skip the test for mmap-able low memory
737	+	ac_cv_can_map_lm=no
738	+	fi
739	+	])
740	+	AC_TRANSLATE_DEFINE(PAGEZERO_HACK, "$ac_cv_pagezero_hack",
741	+	[Define if the __PAGEZERO Mach-O Low Memory Globals hack works on this system.])
742	+
743		dnl Check if we can mmap 0x2000 bytes from 0x0000
744		AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x2000],
745		ac_cv_can_map_lm, [
#	Line 573 | Line 763 | AC_CACHE_CHECK([whether we can map Low M
763		]
764		)
765
766	+	dnl Check if we have POSIX shared memory support
767	+	AC_CACHE_CHECK([whether POSIX shared memory is working],
768	+	ac_cv_have_posix_shm, [
769	+	AC_LANG_SAVE
770	+	AC_LANG_CPLUSPLUS
771	+	AC_TRY_RUN([
772	+	#define HAVE_POSIX_SHM
773	+	#include "vm_alloc.cpp"
774	+	int main(void) { /* returns 0 if we have working POSIX shm */
775	+	if (vm_init() < 0) exit(2);
776	+	char *m1 = (char *)vm_acquire(32768, VM_MAP_DEFAULT | VM_MAP_33BIT);
777	+	if (m1 == VM_MAP_FAILED) exit(3);
778	+	vm_exit(); exit(0);
779	+	}
780	+	], ac_cv_have_posix_shm=yes, ac_cv_have_posix_shm=no,
781	+	dnl When cross-compiling, do not assume anything.
782	+	ac_cv_have_posix_shm="guessing no"
783	+	)
784	+	AC_LANG_RESTORE
785	+	]
786	+	)
787	+	AC_TRANSLATE_DEFINE(HAVE_POSIX_SHM, "$ac_cv_have_posix_shm",
788	+	[Define if your system supports POSIX shared memory.])
789	+
790	+	dnl Check if we have working 33-bit memory addressing
791	+	AC_CACHE_CHECK([whether 33-bit memory addressing is working],
792	+	ac_cv_have_33bit_addressing, [
793	+	AC_LANG_SAVE
794	+	AC_LANG_CPLUSPLUS
795	+	AC_TRY_RUN([
796	+	#define USE_33BIT_ADDRESSING 1
797	+	#include "vm_alloc.cpp"
798	+	int main(void) { /* returns 0 if we have working 33-bit addressing */
799	+	if (sizeof(void *) < 8) exit(1);
800	+	if (vm_init() < 0) exit(2);
801	+	char *m1 = (char *)vm_acquire(32768, VM_MAP_DEFAULT | VM_MAP_33BIT);
802	+	if (m1 == VM_MAP_FAILED) exit(3);
803	+	char *m2 = m1 + (1L << 32);
804	+	m1[0] = 0x12; if (m2[0] != 0x12) exit(4);
805	+	m2[0] = 0x34; if (m1[0] != 0x34) exit(5);
806	+	vm_exit(); exit(0);
807	+	}
808	+	], ac_cv_have_33bit_addressing=yes, ac_cv_have_33bit_addressing=no,
809	+	dnl When cross-compiling, do not assume anything.
810	+	ac_cv_have_33bit_addressing="guessing no"
811	+	)
812	+	AC_LANG_RESTORE
813	+	]
814	+	)
815	+
816		dnl Check signal handlers need to be reinstalled
817		AC_CACHE_CHECK([whether signal handlers need to be reinstalled],
818		ac_cv_signal_need_reinstall, [
#	Line 634 | Line 874 | AC_CACHE_CHECK([whether sigaction handle
874		AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall",
875		[Define if your system requires sigactions to be reinstalled.])
876
877	<	dnl Check if extended signals are supported.
878	<	AC_CACHE_CHECK([whether your system supports extended signal handlers],
879	<	ac_cv_have_extended_signals, [
877	>	dnl Check if Mach exceptions supported.
878	>	AC_CACHE_CHECK([whether your system supports Mach exceptions],
879	>	ac_cv_have_mach_exceptions, [
880		AC_LANG_SAVE
881		AC_LANG_CPLUSPLUS
882		AC_TRY_RUN([
883	<	#define HAVE_SIGINFO_T 1
883	>	#define HAVE_MACH_EXCEPTIONS 1
884		#define CONFIGURE_TEST_SIGSEGV_RECOVERY
885		#include "vm_alloc.cpp"
886		#include "sigsegv.cpp"
887	<	], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
887	>	], [
888	>	sigsegv_recovery=mach
889	>	ac_cv_have_mach_exceptions=yes
890	>	],
891	>	ac_cv_have_mach_exceptions=no,
892		dnl When cross-compiling, do not assume anything.
893	<	ac_cv_have_extended_signals=no
893	>	ac_cv_have_mach_exceptions=no
894		)
895		AC_LANG_RESTORE
896		]
897		)
898	<	AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
899	<	[Define if your system support extended signals.])
898	>	AC_TRANSLATE_DEFINE(HAVE_MACH_EXCEPTIONS, "$ac_cv_have_mach_exceptions",
899	>	[Define if your system supports Mach exceptions.])
900	>
901	>	dnl Check if Windows exceptions are supported.
902	>	AC_CACHE_CHECK([whether your system supports Windows exceptions],
903	>	ac_cv_have_win32_exceptions, [
904	>	AC_LANG_SAVE
905	>	AC_LANG_CPLUSPLUS
906	>	AC_TRY_RUN([
907	>	#define HAVE_WIN32_EXCEPTIONS 1
908	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
909	>	#include "vm_alloc.cpp"
910	>	#include "sigsegv.cpp"
911	>	], [
912	>	sigsegv_recovery=win32
913	>	ac_cv_have_win32_exceptions=yes
914	>	],
915	>	ac_cv_have_win32_exceptions=no,
916	>	dnl When cross-compiling, do not assume anything.
917	>	ac_cv_have_win32_exceptions=no
918	>	)
919	>	AC_LANG_RESTORE
920	>	]
921	>	)
922	>	AC_TRANSLATE_DEFINE(HAVE_WIN32_EXCEPTIONS, "$ac_cv_have_win32_exceptions",
923	>	[Define if your system supports Windows exceptions.])
924	>
925	>	dnl Otherwise, check if extended signals are supported.
926	>	if [[ -z "$sigsegv_recovery" ]]; then
927	>	AC_CACHE_CHECK([whether your system supports extended signal handlers],
928	>	ac_cv_have_extended_signals, [
929	>	AC_LANG_SAVE
930	>	AC_LANG_CPLUSPLUS
931	>	AC_TRY_RUN([
932	>	#define HAVE_SIGINFO_T 1
933	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
934	>	#include "vm_alloc.cpp"
935	>	#include "sigsegv.cpp"
936	>	], [
937	>	sigsegv_recovery=siginfo
938	>	ac_cv_have_extended_signals=yes
939	>	],
940	>	ac_cv_have_extended_signals=no,
941	>	dnl When cross-compiling, do not assume anything.
942	>	ac_cv_have_extended_signals=no
943	>	)
944	>	AC_LANG_RESTORE
945	>	]
946	>	)
947	>	AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
948	>	[Define if your system support extended signals.])
949	>	fi
950
951		dnl Otherwise, check for subterfuges.
952	<	if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
952	>	if [[ -z "$sigsegv_recovery" ]]; then
953		AC_CACHE_CHECK([whether we then have a subterfuge for your system],
954		ac_cv_have_sigcontext_hack, [
955		AC_LANG_SAVE
#	Line 665 | Line 959 | if [[ "x$ac_cv_have_extended_signals" =
959		#define CONFIGURE_TEST_SIGSEGV_RECOVERY
960		#include "vm_alloc.cpp"
961		#include "sigsegv.cpp"
962	<	], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
962	>	], [
963	>	sigsegv_recovery=sigcontext
964	>	ac_cv_have_sigcontext_hack=yes
965	>	],
966	>	ac_cv_have_sigcontext_hack=no,
967		dnl When cross-compiling, do not assume anything.
968		ac_cv_have_sigcontext_hack=no
969		)
#	Line 697 | Line 995 | AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_IN
995
996		dnl Can we do Video on SEGV Signals ?
997		CAN_VOSF=no
998	<	if [[ "$ac_cv_have_extended_signals" = "yes" -o "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
998	>	if [[ -n "$sigsegv_recovery" ]]; then
999		CAN_VOSF=yes
1000		fi
1001
1002	+	dnl A dummy program that returns always true
1003	+	AC_PATH_PROG([BLESS], "true")
1004	+
1005		dnl Determine the addressing mode to use
1006		if [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
1007		ADDRESSING_MODE="real"
#	Line 711 | Line 1012 | else
1012		case $am in
1013		real)
1014		dnl Requires ability to mmap() Low Memory globals
1015	<	if [[ "x$ac_cv_can_map_lm" = "xno" ]]; then
1015	>	if [[ "x$ac_cv_can_map_lm$ac_cv_pagezero_hack" = "xnono" ]]; then
1016		continue
1017		fi
1018	<	dnl Requires VOSF screen updates
1018	>	dnl Requires VOSF screen updates
1019		if [[ "x$CAN_VOSF" = "xno" ]]; then
1020		continue
1021		fi
#	Line 722 | Line 1023 | else
1023		ADDRESSING_MODE="real"
1024		WANT_VOSF=yes dnl we can use VOSF and we need it actually
1025		DEFINES="$DEFINES -DREAL_ADDRESSING"
1026	+	if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
1027	+	BLESS=Darwin/lowmem
1028	+	LDFLAGS="$LDFLAGS -pagezero_size 0x2000"
1029	+	fi
1030		break
1031		;;
1032		direct)
#	Line 789 | Line 1094 | AC_EGREP_CPP(xyes,
1094		#endif
1095		], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
1096
1097	+	dnl Check for ICC.
1098	+	AC_MSG_CHECKING(for ICC)
1099	+	HAVE_ICC=no
1100	+	if $CXX -V -v 2>&1 | grep -q "Intel(R) C++ Compiler"; then
1101	+	HAVE_ICC=yes
1102	+	fi
1103	+	AC_MSG_RESULT($HAVE_ICC)
1104	+
1105		dnl Set "-fomit-frame-pointer" on i386 GCC 2.7 or higher.
1106		dnl Also set "-fno-exceptions" for C++ because exception handling requires
1107		dnl the frame pointer.
#	Line 802 | Line 1115 | dnl As of 2001/08/02, this affects the f
1115		dnl Official: probably gcc-3.1 (mainline CVS)
1116		dnl Mandrake: gcc-2.96 >= 0.59mdk, gcc-3.0.1 >= 0.1mdk
1117		dnl Red Hat : gcc-2.96 >= 89, gcc-3.0 >= 1
1118	<	if [[ "x$HAVE_GCC27" = "xyes" ]]; then
1118	>	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1119		SAVED_CXXFLAGS="$CXXFLAGS"
1120		CXXFLAGS="$CXXFLAGS -fno-merge-constants"
1121		AC_CACHE_CHECK([whether GCC supports constants merging], ac_cv_gcc_constants_merging, [
#	Line 816 | Line 1129 | if [[ "x$HAVE_GCC27" = "xyes" ]]; then
1129		fi
1130		fi
1131
1132	+	dnl Store motion was introduced in 3.3-hammer branch and any gcc >= 3.4
1133	+	dnl However, there are some corner cases exposed on x86-64
1134	+	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1135	+	SAVED_CXXFLAGS="$CXXFLAGS"
1136	+	CXXFLAGS="$CXXFLAGS -fno-gcse-sm"
1137	+	AC_CACHE_CHECK([whether GCC supports store motion], ac_cv_gcc_store_motion, [
1138	+	AC_LANG_SAVE
1139	+	AC_LANG_CPLUSPLUS
1140	+	AC_TRY_COMPILE([],[],[ac_cv_gcc_store_motion=yes],[ac_cv_gcc_store_motion=no])
1141	+	AC_LANG_RESTORE
1142	+	])
1143	+	if [[ "x$ac_cv_gcc_store_motion" != "xyes" ]]; then
1144	+	CXXFLAGS="$SAVED_CXXFLAGS"
1145	+	fi
1146	+	fi
1147	+
1148	+	dnl Add -fno-strict-aliasing for slirp sources
1149	+	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1150	+	SAVED_CFLAGS="$CFLAGS"
1151	+	CFLAGS="$CFLAGS -fno-strict-aliasing"
1152	+	AC_CACHE_CHECK([whether the compiler supports -fno-strict-aliasing],
1153	+	ac_cv_gcc_no_strict_aliasing, [
1154	+	AC_TRY_COMPILE([],[],
1155	+	[ac_cv_gcc_no_strict_aliasing=yes; AC_SUBST(SLIRP_CFLAGS, "$CFLAGS")],
1156	+	[ac_cv_gcc_no_strict_aliasing=no])
1157	+	])
1158	+	CFLAGS="$SAVED_CFLAGS"
1159	+	fi
1160	+
1161		dnl Select appropriate CPU source and REGPARAM define.
1162		ASM_OPTIMIZATIONS=none
1163		CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
#	Line 840 | Line 1182 | elif [[ "x$HAVE_GCC30" = "xyes" -a "x$HA
1182		if [[ "x$HAVE_GAS" = "xyes" ]]; then
1183		ASM_OPTIMIZATIONS="x86-64"
1184		DEFINES="$DEFINES -DX86_64_ASSEMBLY -DOPTIMIZED_FLAGS"
1185	+	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 $JITSRCS"
1186	+	CAN_JIT=yes
1187	+	WANT_33BIT_ADDRESSING=yes
1188		fi
1189		elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
1190		dnl SPARC CPU
#	Line 896 | Line 1241 | else
1241		JITSRCS=""
1242		fi
1243
1244	+	dnl Use 33-bit memory addressing?
1245	+	if [[ "$ac_cv_have_33bit_addressing:$WANT_33BIT_ADDRESSING" = "yes:yes" ]]; then
1246	+	use_33bit_addressing=yes
1247	+	fi
1248	+	AC_TRANSLATE_DEFINE(USE_33BIT_ADDRESSING, "$use_33bit_addressing",
1249	+	[Define to use 33-bit memory addressing on 64-bit JIT capable systems.])
1250	+
1251		dnl Utility macro used by next two tests.
1252		dnl AC_EXAMINE_OBJECT(C source code,
1253		dnl     commands examining object file,
#	Line 1093 | Line 1445 | fi
1445
1446		dnl Remove the "-g" option if set for GCC.
1447		if [[ "x$HAVE_GCC27" = "xyes" ]]; then
1448	<	CFLAGS=`echo $CFLAGS | sed -e 's/-g//g'`
1449	<	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g//g'`
1448	>	CFLAGS=`echo $CFLAGS | sed -e 's/-g\b//g'`
1449	>	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g\b//g'`
1450		fi
1451
1452		dnl Or if we have -IPA (MIPSPro compilers)
#	Line 1110 | Line 1462 | AC_SUBST(DEFINES)
1462		AC_SUBST(SYSSRCS)
1463		AC_SUBST(CPUINCLUDES)
1464		AC_SUBST(CPUSRCS)
1465	+	AC_SUBST(BLESS)
1466	+	AC_SUBST(KEYCODES)
1467		AC_CONFIG_FILES([Makefile])
1468		AC_OUTPUT
1469
#	Line 1117 | Line 1471 | dnl Print summary.
1471		echo
1472		echo Basilisk II configuration summary:
1473		echo
1474	+	echo SDL support ............................ : $SDL_SUPPORT
1475		echo XFree86 DGA support .................... : $WANT_XF86_DGA
1476		echo XFree86 VidMode support ................ : $WANT_XF86_VIDMODE
1477		echo fbdev DGA support ...................... : $WANT_FBDEV_DGA
#	Line 1130 | Line 1485 | echo JIT debug mode ....................
1485		echo Floating-Point emulation core .......... : $FPE_CORE
1486		echo Assembly optimizations ................. : $ASM_OPTIMIZATIONS
1487		echo Addressing mode ........................ : $ADDRESSING_MODE
1488	+	echo Bad memory access recovery type ........ : $sigsegv_recovery
1489		echo
1490		echo "Configuration done. Now type \"make\" (or \"gmake\")."

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