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

Comparing SheepShaver/src/Unix/configure.ac (file contents):
Revision 1.9 by gbeauche, 2004-11-22T22:51:54Z vs.
Revision 1.36 by gbeauche, 2005-07-06T05:26:01Z

#	Line 14 | Line 14 | dnl Some systems do not put corefiles in
14		dnl cores for the configure tests since some are intended to dump core.
15		ulimit -c 0
16
17	+	dnl Invite Cygwin users to build within the Windows/ directory
18	+	case $target_os in
19	+	*cygwin* | *mingw32*)
20	+	AC_MSG_ERROR([You can only build the Windows version from its directory, Cygwin/X11 is not supported.])
21	+	;;
22	+	esac
23	+
24		dnl Options.
25		AC_ARG_ENABLE(jit,          [  --enable-jit            enable JIT compiler [default=yes]], [WANT_JIT=$enableval], [WANT_JIT=yes])
26		AC_ARG_ENABLE(ppc-emulator, [  --enable-ppc-emulator   use the selected PowerPC emulator [default=auto]], [WANT_EMULATED_PPC=$enableval], [WANT_EMULATED_PPC=auto])
27	+	AC_ARG_ENABLE(fbdev-dga,    [  --enable-fbdev-dga      use direct frame buffer access via /dev/fb0 [default=yes]], [WANT_FBDEV_DGA=$enableval], [WANT_FBDEV_DGA=yes])
28		AC_ARG_ENABLE(xf86-dga,     [  --enable-xf86-dga       use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
29	<	AC_ARG_ENABLE(xf86-vidmode, [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=no]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=no])
29	>	AC_ARG_ENABLE(xf86-vidmode, [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
30		AC_ARG_ENABLE(vosf,         [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
31		AC_ARG_WITH(esd,            [  --with-esd              support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
32	<	AC_ARG_WITH(gtk,            [  --with-gtk              use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes])
32	>	AC_ARG_WITH(gtk,            [  --with-gtk              use GTK user interface [default=yes]],
33	>	[case "$withval" in
34	>	gtk1)      WANT_GTK="gtk";;
35	>	gtk|gtk2)  WANT_GTK="$withval";;
36	>	yes)       WANT_GTK="gtk2 gtk";;
37	>	*)         WANT_GTK="no";;
38	>	esac],
39	>	[WANT_GTK="gtk2 gtk"])
40		AC_ARG_WITH(mon,            [  --with-mon              use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
41		AC_ARG_WITH(dgcc,           [  --with-dgcc=COMPILER    use C++ COMPILER to compile synthetic opcodes], [DYNGEN_CC=$withval])
42
#	Line 31 | Line 46 | AC_ARG_ENABLE(addressing,
46		[case "$enableval" in
47		real)        WANT_ADDRESSING_MODE="real";;
48		direct)      WANT_ADDRESSING_MODE="direct";;
49	<	direct,0x*)  WANT_ADDRESSING_MODE="direct"; NATMEM_OFFSET=`echo "$enableval" | sed -n '/direct,\(0[[xX]][[0-9A-Fa-f]]*\)/s//\1/p'`;;
49	>	direct,0x*)  WANT_ADDRESSING_MODE="direct"; NATMEM_OFFSET=`echo "$enableval" | sed -n '/direct,\(0[[xX]][[0-9A-Fa-f]]*\([[UuLl]]\{1,2\}\)\?\)$/s//\1/p'`;;
50		esac],
51		[WANT_ADDRESSING_MODE="real"]
52		)
#	Line 48 | Line 63 | AC_PROG_CXX
63		AC_PROG_MAKE_SET
64		AC_PROG_INSTALL
65		AC_PROG_EGREP
66	<	AC_CHECK_PROGS(FILE, [file false])
66	>	AC_PATH_PROGS(FILE, [file false])
67	>	AC_PATH_PROG(PERL, [perl])
68
69		dnl Check for PowerPC target CPU.
70		HAVE_PPC=no
#	Line 105 | Line 121 | if [[ "x$WANT_MON" = "xyes" ]]; then
121		WANT_MON=no
122		fi
123		fi
124	+	AC_SUBST(MONSRCS)
125
126		dnl Checks for libraries.
127		AC_CHECK_LIB(posix4, sem_init)
#	Line 125 | Line 142 | fi
142		if [[ "x$WANT_SDL" = "xyes" ]]; then
143		AC_PATH_PROG(sdl_config, "sdl-config")
144		if [[ -n "$sdl_config" ]]; then
145	<	case $target_os in
146	<	# Special treatment for Cygwin so that we can still use the POSIX layer
147	<	*cygwin*)
148	<	sdl_cflags="-I`$sdl_config --prefix`/include/SDL"
149	<	sdl_libs="-L`$sdl_config --exec-prefix`/lib -lSDL"
150	<	;;
134	<	*)
135	<	sdl_cflags=`$sdl_config --cflags`
136	<	if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
137	<	sdl_libs=`$sdl_config --static-libs`
138	<	else
139	<	sdl_libs=`$sdl_config --libs`
140	<	fi
141	<	;;
142	<	esac
145	>	sdl_cflags=`$sdl_config --cflags`
146	>	if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
147	>	sdl_libs=`$sdl_config --static-libs`
148	>	else
149	>	sdl_libs=`$sdl_config --libs`
150	>	fi
151		CFLAGS="$CFLAGS $sdl_cflags"
152		CXXFLAGS="$CXXFLAGS $sdl_cflags"
153		LIBS="$LIBS $sdl_libs"
154		else
155		WANT_SDL=no
156	+	WANT_SDL_VIDEO=no
157	+	WANT_SDL_AUDIO=no
158		fi
159		SDL_SUPPORT=`echo "$SDL_SUPPORT" | sed -e "s/^ //"`
160		else
#	Line 152 | Line 162 | else
162		fi
163
164		dnl We need X11, if not using SDL.
165	<	if [[ "x$WANT_SDL" = "xno" ]]; then
165	>	if [[ "x$WANT_SDL_VIDEO" != "xyes" ]]; then
166		AC_PATH_XTRA
167		if [[ "x$no_x" = "xyes" ]]; then
168		AC_MSG_ERROR([You need X11 to run SheepShaver.])
#	Line 165 | Line 175 | fi
175		dnl We need pthreads on non-PowerPC systems. Try libpthread first, then libc_r (FreeBSD), then PTL.
176		HAVE_PTHREADS=yes
177		case $EMULATED_PPC:$target_os in
178	<	no:linux*)
178	>	no:linux*|no:netbsd*)
179		dnl We do have our own pthread_cancel() implementation
180		AC_DEFINE(HAVE_PTHREAD_CANCEL, 1, [Define if you have the pthread_cancel function.])
181		;;
#	Line 173 | Line 183 | no:linux*)
183		AC_CHECK_LIB(pthread, pthread_create, , [
184		AC_CHECK_LIB(c_r, pthread_create, , [
185		AC_CHECK_LIB(PTL, pthread_create, , [
186	<	AC_MSG_ERROR([You need pthreads to run Basilisk II.])
186	>	dnl XXX remove when no pthreads case is merged
187	>	AC_MSG_ERROR([You need pthreads to run SheepShaver.])
188	>	HAVE_PTHREADS=no
189		])
190		])
191		])
192		AC_CHECK_FUNCS(pthread_cancel)
193	+	AC_CHECK_FUNCS(pthread_cond_init pthread_testcancel)
194		AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
195		AC_CHECK_FUNCS(pthread_mutexattr_settype)
196		AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
184	–	if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
185	–	AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
186	–	fi
197		dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
198		SEMSRC=
199		AC_CHECK_FUNCS(sem_init, , [
#	Line 193 | Line 203 | no:linux*)
203		])
204		;;
205		esac
206	+	if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
207	+	AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
208	+	fi
209	+
210	+	dnl We use FBDev DGA if possible.
211	+	if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
212	+	AC_CHECK_HEADER(linux/fb.h, [
213	+	AC_DEFINE(ENABLE_FBDEV_DGA, 1, [Define if using Linux fbdev extension.])
214	+	], [
215	+	AC_MSG_WARN([Could not find Linux FBDev extension, ignoring --enable-fbdev-dga.])
216	+	WANT_FBDEV_DGA=no
217	+	])
218	+	fi
219
220		dnl We use XFree86 DGA if possible.
221		if [[ "x$WANT_XF86_DGA" = "xyes" ]]; then
#	Line 218 | Line 241 | fi
241
242		dnl We use GTK+ if possible.
243		UISRCS=../dummy/prefs_editor_dummy.cpp
244	<	if [[ "x$WANT_GTK" = "xyes" ]]; then
244	>	case "x$WANT_GTK" in
245	>	xgtk2*)
246	>	AM_PATH_GTK_2_0(1.3.15, [
247	>	AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
248	>	CFLAGS="$CFLAGS $GTK_CFLAGS"
249	>	CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
250	>	LIBS="$LIBS $GTK_LIBS"
251	>	UISRCS=prefs_editor_gtk.cpp
252	>	WANT_GTK=gtk2
253	>	], [
254	>	case "x${WANT_GTK}x" in
255	>	*gtkx)
256	>	AC_MSG_WARN([Could not find GTK+ 2.0, trying with GTK+ 1.2.])
257	>	WANT_GTK=gtk
258	>	;;
259	>	*)
260	>	AC_MSG_WARN([Could not find GTK+, disabling user interface.])
261	>	WANT_GTK=no
262	>	;;
263	>	esac
264	>	])
265	>	;;
266	>	esac
267	>	if [[ "x$WANT_GTK" = "xgtk" ]]; then
268		AM_PATH_GTK(1.2.0, [
269		AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
270		CFLAGS="$CFLAGS $GTK_CFLAGS"
#	Line 250 | Line 296 | AC_SYS_LARGEFILE
296		dnl Checks for header files.
297		AC_HEADER_STDC
298		AC_HEADER_SYS_WAIT
299	<	AC_CHECK_HEADERS(malloc.h)
299	>	AC_CHECK_HEADERS(malloc.h stdint.h)
300		AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h)
255	–	AC_CHECK_HEADERS(sys/time.h sys/times.h sys/socket.h)
301		AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h dirent.h)
302	<	AC_CHECK_HEADERS(linux/if.h, [], [], [
303	<	#if HAVE_SYS_SOCKET_H
304	<	# include <sys/socket.h>
302	>	AC_CHECK_HEADERS(sys/socket.h sys/ioctl.h sys/filio.h sys/bitypes.h sys/wait.h)
303	>	AC_CHECK_HEADERS(sys/time.h sys/poll.h sys/select.h arpa/inet.h)
304	>	AC_CHECK_HEADERS(linux/if.h linux/if_tun.h net/if.h net/if_tun.h, [], [], [
305	>	#ifdef HAVE_SYS_TYPES_H
306	>	#include <sys/types.h>
307	>	#endif
308	>	#ifdef HAVE_SYS_SOCKET_H
309	>	#include <sys/socket.h>
310		#endif
311		])
312	<	AC_CHECK_HEADERS(linux/if_tun.h net/if.h net/if_tun.h)
312	>	AC_CHECK_HEADERS(AvailabilityMacros.h)
313	>	AC_CHECK_HEADERS(IOKit/storage/IOBlockStorageDevice.h)
314	>	AC_CHECK_HEADERS(fenv.h)
315
316		dnl Checks for typedefs, structures, and compiler characteristics.
317		AC_C_BIGENDIAN
#	Line 279 | Line 331 | AC_TYPE_SIGNAL
331		AC_HEADER_TIME
332		AC_STRUCT_TM
333
334	+	dnl Check whether sys/socket.h defines type socklen_t.
335	+	dnl (extracted from ac-archive/Miscellaneous)
336	+	AC_CACHE_CHECK([for socklen_t],
337	+	ac_cv_type_socklen_t, [
338	+	AC_TRY_COMPILE([
339	+	#include <sys/types.h>
340	+	#include <sys/socket.h>
341	+	], [socklen_t len = 42; return 0;],
342	+	ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
343	+	dnl When cross-compiling, do not assume anything.
344	+	ac_cv_type_socklen_t="guessing no"
345	+	)
346	+	])
347	+	if [[ "x$ac_cv_type_socklen_t" != "xyes" ]]; then
348	+	AC_DEFINE(socklen_t, int, [Define to 'int' if <sys/types.h> doesn't define.])
349	+	fi
350	+
351		dnl Check whether struct sigaction has sa_restorer member.
352		AC_CACHE_CHECK([whether struct sigaction has sa_restorer],
353		ac_cv_signal_sa_restorer, [
#	Line 295 | Line 364 | if [[ "x$ac_cv_signal_sa_restorer" = "xy
364		fi
365
366		dnl Checks for library functions.
367	<	AC_CHECK_FUNCS(strdup strlcpy cfmakeraw)
367	>	AC_CHECK_FUNCS(strdup strerror strlcpy cfmakeraw)
368		AC_CHECK_FUNCS(nanosleep)
369		AC_CHECK_FUNCS(sigaction signal)
370		AC_CHECK_FUNCS(mmap mprotect munmap)
371		AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
372	<	AC_CHECK_FUNCS(posix_memalign memalign valloc)
372	>	AC_CHECK_FUNCS(exp2f log2f exp2 log2)
373	>	AC_CHECK_FUNCS(floorf roundf ceilf truncf floor round ceil trunc)
374	>	AC_CHECK_FUNCS(poll inet_aton)
375
376		dnl Darwin seems to define mach_task_self() instead of task_self().
377		AC_CHECK_FUNCS(mach_task_self task_self)
#	Line 312 | Line 383 | no:linux*)
383		;;
384		*:*)
385		AC_SEARCH_LIBS(clock_gettime, [rt posix4])
386	<	AC_CHECK_FUNCS(clock_gettime)
386	>	AC_CHECK_FUNCS(clock_gettime clock_nanosleep)
387		;;
388		esac
389
#	Line 391 | Line 462 | EXTFSSRC=extfs_unix.cpp
462		EXTRASYSSRCS=
463		case "$target_os" in
464		linux*)
465	<	ETHERSRC=Linux/ether_linux.cpp
465	>	ETHERSRC=ether_unix.cpp
466		AUDIOSRC=audio_oss_esd.cpp
467		SCSISRC=Linux/scsi_linux.cpp
468		if [[ "x$EMULATED_PPC" = "xno" ]]; then
469	<	EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
469	>	EXTRASYSSRCS="paranoia.cpp Linux/sheepthreads.c ppc_asm.S"
470	>	fi
471	>	;;
472	>	freebsd*)
473	>	ETHERSRC=ether_unix.cpp
474	>	;;
475	>	netbsd*)
476	>	ETHERSRC=ether_unix.cpp
477	>	if [[ "x$EMULATED_PPC" = "xno" ]]; then
478	>	EXTRASYSSRCS="paranoia.cpp NetBSD/sheepthreads.c ppc_asm.S"
479		fi
480		;;
481		darwin*)
482	+	ETHERSRC=ether_unix.cpp
483		if [[ "x$EMULATED_PPC" = "xno" ]]; then
484	<	EXTRASYSSRCS="Darwin/paranoia.cpp Linux/asm_linux.S"
484	>	EXTRASYSSRCS="paranoia.cpp ppc_asm.S"
485		fi
486		if [[ "x$ac_cv_framework_IOKit" = "xyes" ]]; then
487		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/sys_darwin.cpp"
#	Line 409 | Line 490 | darwin*)
490		EXTFSSRC=../MacOSX/extfs_macosx.mm
491		fi
492		;;
412	–	cygwin*)
413	–	SERIALSRC="../dummy/serial_dummy.cpp"
414	–	;;
493		esac
494
495	+	dnl Is the slirp library supported?
496	+	if [[ "x$ETHERSRC" = "xether_unix.cpp" ]]; then
497	+	AC_DEFINE(HAVE_SLIRP, 1, [Define if slirp library is supported])
498	+	SLIRP_SRCS="\
499	+	../slirp/bootp.c     ../slirp/ip_output.c  ../slirp/tcp_input.c  \
500	+	../slirp/cksum.c     ../slirp/mbuf.c       ../slirp/tcp_output.c \
501	+	../slirp/debug.c     ../slirp/misc.c       ../slirp/tcp_subr.c   \
502	+	../slirp/if.c        ../slirp/sbuf.c       ../slirp/tcp_timer.c  \
503	+	../slirp/ip_icmp.c   ../slirp/slirp.c      ../slirp/tftp.c       \
504	+	../slirp/ip_input.c  ../slirp/socket.c     ../slirp/udp.c"
505	+	fi
506	+	AC_SUBST(SLIRP_SRCS)
507	+
508		dnl SDL overrides
509		if [[ "x$WANT_SDL" = "xyes" ]]; then
510		AC_DEFINE(USE_SDL, 1, [Define to enble SDL support.])
#	Line 425 | Line 516 | if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; th
516		if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
517		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
518		else
519	<	case "$target_os" in
429	<	cygwin*)
430	<	EXTRASYSSRCS="$EXTRASYSSRCS ../Windows/clip_windows.cpp"
431	<	;;
432	<	*)
433	<	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
434	<	;;
435	<	esac
519	>	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
520		fi
521		else
522		VIDEOSRCS="video_x.cpp"
#	Line 444 | Line 528 | if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; th
528		AUDIOSRC="../SDL/audio_sdl.cpp"
529		fi
530
531	<	SYSSRCS="$VIDEOSRCS $EXTFSSRC $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
531	>	SYSSRCS="$VIDEOSRCS $EXTFSSRC $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $EXTRASYSSRCS"
532
533		dnl Define a macro that translates a yesno-variable into a C macro definition
534		dnl to be put into the config.h file
#	Line 860 | Line 944 | fi
944
945		dnl Check addressing mode to use
946		AC_MSG_CHECKING([for addressing mode to use])
863	–	case "$os_target" in
864	–	cygwin*)
865	–	WANT_ADDRESSING_MODE="direct,cygwin-hack"
866	–	NATMEM_OFFSET=
867	–	;;
868	–	esac
947		if [[ "$EMULATED_PPC" != "yes" ]]; then
948		if [[ "$WANT_ADDRESSING_MODE" != "real" ]]; then
949		AC_MSG_WARN([Running in native PowerPC mode, force use of Real Addressing.])
#	Line 916 | Line 994 | int main(void)
994		memset(m, 0, ranges[[i]].size);
995		vm_release(m, ranges[[i]].size);
996		if (i == n_ranges - 1) {
997	<	printf("0x%08x\n", ofs);
997	>	if (sizeof(void *) == 8 && ofs > 0xffffffff)
998	>	printf("0x%lxul\n", ofs);
999	>	else
1000	>	printf("0x%08x\n", ofs);
1001		return 0;
1002		}
1003		}
#	Line 944 | Line 1025 | EOF
1025		fi
1026		AC_MSG_RESULT($WANT_ADDRESSING_MODE)
1027
1028	+	dnl Utility macro used by next two tests.
1029	+	dnl AC_EXAMINE_OBJECT(C source code,
1030	+	dnl     commands examining object file,
1031	+	dnl     [commands to run if compile failed]):
1032	+	dnl
1033	+	dnl Compile the source code to an object file; then convert it into a
1034	+	dnl printable representation.  All unprintable characters and
1035	+	dnl asterisks (*) are replaced by dots (.).  All white space is
1036	+	dnl deleted.  Newlines (ASCII 0x10) in the input are preserved in the
1037	+	dnl output, but runs of newlines are compressed to a single newline.
1038	+	dnl Finally, line breaks are forcibly inserted so that no line is
1039	+	dnl longer than 80 columns and the file ends with a newline.  The
1040	+	dnl result of all this processing is in the file conftest.dmp, which
1041	+	dnl may be examined by the commands in the second argument.
1042	+	dnl
1043	+	AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
1044	+	[AC_LANG_SAVE
1045	+	AC_LANG_C
1046	+	dnl Next bit cribbed from AC_TRY_COMPILE.
1047	+	cat > conftest.$ac_ext <<EOF
1048	+	[#line __oline__ "configure"
1049	+	#include "confdefs.h"
1050	+	$1
1051	+	]EOF
1052	+	if AC_TRY_EVAL(ac_compile); then
1053	+	od -c conftest.o |
1054	+	sed ['s/^[0-7]*[    ]*/ /
1055	+	s/\*/./g
1056	+	s/ \\n/*/g
1057	+	s/ [0-9][0-9][0-9]/./g
1058	+	s/  \\[^ ]/./g'] |
1059	+	tr -d '
1060	+	' | tr -s '*' '
1061	+	' | fold | sed '$a\
1062	+	' > conftest.dmp
1063	+	$2
1064	+	ifelse($3, , , else
1065	+	$3
1066	+	)dnl
1067	+	fi
1068	+	rm -rf conftest*
1069	+	AC_LANG_RESTORE])
1070	+
1071	+	dnl Floating point format probe.
1072	+	dnl The basic concept is the same as the above: grep the object
1073	+	dnl file for an interesting string.  We have to watch out for
1074	+	dnl rounding changing the values in the object, however; this is
1075	+	dnl handled by ignoring the least significant byte of the float.
1076	+	dnl
1077	+	dnl Does not know about VAX G-float or C4x idiosyncratic format.
1078	+	dnl It does know about PDP-10 idiosyncratic format, but this is
1079	+	dnl not presently supported by GCC.  S/390 "binary floating point"
1080	+	dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
1081	+	dnl as ASCII?)
1082	+	dnl
1083	+	AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
1084	+	[AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
1085	+	[gcc_AC_EXAMINE_OBJECT(
1086	+	[/* This will not work unless sizeof(double) == 8.  */
1087	+	extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
1088	+
1089	+	/* This structure must have no internal padding.  */
1090	+	struct possibility {
1091	+	char prefix[8];
1092	+	double candidate;
1093	+	char postfix[8];
1094	+	};
1095	+
1096	+	#define C(cand) { "\nformat:", cand, ":tamrof\n" }
1097	+	struct possibility table [] =
1098	+	{
1099	+	C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
1100	+	C( 3.53802595280598432000e+18), /* D__float - VAX */
1101	+	C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
1102	+	C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
1103	+	C(-5.22995989424860458374e+10)  /* IBMHEXFP - s/390 format, EBCDIC */
1104	+	};],
1105	+	[if   grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1106	+	ac_cv_c_float_format='IEEE (big-endian)'
1107	+	elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
1108	+	ac_cv_c_float_format='IEEE (big-endian)'
1109	+	elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
1110	+	ac_cv_c_float_format='IEEE (little-endian)'
1111	+	elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
1112	+	ac_cv_c_float_format='IEEE (little-endian)'
1113	+	elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
1114	+	ac_cv_c_float_format='VAX D-float'
1115	+	elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
1116	+	ac_cv_c_float_format='PDP-10'
1117	+	elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1118	+	ac_cv_c_float_format='IBM 370 hex'
1119	+	else
1120	+	AC_MSG_ERROR(Unknown floating point format)
1121	+	fi],
1122	+	[AC_MSG_ERROR(compile failed)])
1123	+	])
1124	+	# IEEE is the default format.  If the float endianness isn't the same
1125	+	# as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
1126	+	# (which is a tristate: yes, no, default).  This is only an issue with
1127	+	# IEEE; the other formats are only supported by a few machines each,
1128	+	# all with the same endianness.
1129	+	format=IEEE_FLOAT_FORMAT
1130	+	fbigend=
1131	+	case $ac_cv_c_float_format in
1132	+	'IEEE (big-endian)' )
1133	+	if test $ac_cv_c_bigendian = no; then
1134	+	fbigend=1
1135	+	fi
1136	+	;;
1137	+	'IEEE (little-endian)' )
1138	+	if test $ac_cv_c_bigendian = yes; then
1139	+	fbigend=0
1140	+	fi
1141	+	;;
1142	+	'VAX D-float' )
1143	+	format=VAX_FLOAT_FORMAT
1144	+	;;
1145	+	'PDP-10' )
1146	+	format=PDP10_FLOAT_FORMAT
1147	+	;;
1148	+	'IBM 370 hex' )
1149	+	format=IBM_FLOAT_FORMAT
1150	+	;;
1151	+	esac
1152	+	AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
1153	+	[Define to the floating point format of the host machine.])
1154	+	if test -n "$fbigend"; then
1155	+	AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
1156	+	[Define to 1 if the host machine stores floating point numbers in
1157	+	memory with the word containing the sign bit at the lowest address,
1158	+	or to 0 if it does it the other way around.
1159	+
1160	+	This macro should not be defined if the ordering is the same as for
1161	+	multi-word integers.])
1162	+	fi
1163	+	])
1164	+
1165	+	dnl Check for host float format
1166	+	gcc_AC_C_FLOAT_FORMAT
1167	+
1168		dnl Platform specific binary postprocessor
1169		AC_PATH_PROG(BLESS, "true")
1170		if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
#	Line 954 | Line 1175 | fi
1175		dnl Check for GCC 2.7 or higher.
1176		HAVE_GCC27=no
1177		AC_MSG_CHECKING(for GCC 2.7 or higher)
1178	<	AC_EGREP_CPP(xyes,
1179	<	[#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
1180	<	xyes
1181	<	#endif
1182	<	], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
1178	>	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5)
1179	>	# error gcc < 2.7
1180	>	#endif
1181	>	]])],
1182	>	[AC_MSG_RESULT(yes); HAVE_GCC27=yes],
1183	>	[AC_MSG_RESULT(no)])
1184
1185		dnl Check for GCC 3.0 or higher.
1186		HAVE_GCC30=no
1187		AC_MSG_CHECKING(for GCC 3.0 or higher)
1188	<	AC_EGREP_CPP(xyes,
1189	<	[#if __GNUC__ >= 3
1190	<	xyes
1191	<	#endif
1192	<	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
1188	>	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ >= 3)
1189	>	# error gcc < 3
1190	>	#endif
1191	>	]])],
1192	>	[AC_MSG_RESULT(yes); HAVE_GCC30=yes],
1193	>	[AC_MSG_RESULT(no)])
1194
1195		dnl Check for ICC.
1196		AC_MSG_CHECKING(for ICC)
#	Line 978 | Line 1201 | fi
1201		AC_MSG_RESULT($HAVE_ICC)
1202
1203		dnl Determine the generated object format
1204	<	AC_CACHE_CHECK([whether the compiler can generate ELF objects],
1204	>	AC_CACHE_CHECK([the format of compiler generated objects],
1205		ac_cv_object_format, [
1206		echo 'int i;' > conftest.$ac_ext
1207		ac_cv_object_format=no
#	Line 987 | Line 1210 | AC_CACHE_CHECK([whether the compiler can
1210		*"ELF"*)
1211		ac_cv_object_format=elf
1212		;;
1213	+	*"Mach-O"*)
1214	+	ac_cv_object_format=mach
1215	+	;;
1216		*)
1217		ac_cv_object_format=unknown
1218		;;
#	Line 995 | Line 1221 | AC_CACHE_CHECK([whether the compiler can
1221		rm -rf conftest*
1222		])
1223
1224	+	dnl Add -fno-strict-aliasing for slirp sources
1225	+	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1226	+	SAVED_CFLAGS="$CFLAGS"
1227	+	CFLAGS="$CFLAGS -fno-strict-aliasing"
1228	+	AC_CACHE_CHECK([whether the compiler supports -fno-strict-aliasing],
1229	+	ac_cv_gcc_no_strict_aliasing, [
1230	+	AC_TRY_COMPILE([],[],
1231	+	[ac_cv_gcc_no_strict_aliasing=yes; AC_SUBST(SLIRP_CFLAGS, "-fno-strict-aliasing")],
1232	+	[ac_cv_gcc_no_strict_aliasing=no])
1233	+	])
1234	+	CFLAGS="$SAVED_CFLAGS"
1235	+	fi
1236	+
1237	+	dnl Add -mdynamic-no-pic for MacOS X
1238	+	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1239	+	SAVED_CFLAGS="$CFLAGS"
1240	+	CFLAGS="$CFLAGS -mdynamic-no-pic"
1241	+	AC_CACHE_CHECK([whether the compiler supports -mdynamic-no-pic],
1242	+	ac_cv_gcc_mdynamic_no_pic, [
1243	+	AC_TRY_COMPILE([],[],[ac_cv_gcc_mdynamic_no_pic=yes],[ac_cv_gcc_mdynamic_no_pic=no])
1244	+	])
1245	+	if [[ "x$ac_cv_gcc_mdynamic_no_pic" = "xyes" ]]; then
1246	+	CXXFLAGS="$CXXFLAGS -mdynamic-no-pic"
1247	+	else
1248	+	CFLAGS="$SAVED_CFLAGS"
1249	+	fi
1250	+	fi
1251	+
1252		dnl CPU emulator sources
1253		if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1254		CPUSRCS="\
1255		../kpx_cpu/src/mathlib/ieeefp.cpp \
1256	+	../kpx_cpu/src/mathlib/mathlib.cpp \
1257		../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
1258		../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
1259		../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
#	Line 1019 | Line 1274 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1274		i?86:elf)
1275		ac_cv_use_dyngen=yes
1276		;;
1277	+	powerpc:mach)
1278	+	ac_cv_use_dyngen=yes
1279	+	;;
1280		*:*)
1281		ac_cv_use_dyngen=no
1282		;;
#	Line 1036 | Line 1294 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1294		done
1295		fi
1296		fi
1297	<	if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include <limits>' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then
1297	>	if [[ -z "$DYNGEN_CC" ]]; then
1298		ac_cv_use_dyngen=no
1299		fi
1300		])
#	Line 1044 | Line 1302 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1302		case $host_cpu in
1303		i?86)
1304		DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
1047	–	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1048	–	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
1049	–	else
1050	–	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1051	–	fi
1052	–	saved_CPPFLAGS=$CPPFLAGS
1053	–	CPPFLAGS="$CPPFLAGS -mmmx"
1054	–	AC_CHECK_HEADERS(mmintrin.h,  [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -mmmx"])
1055	–	CPPFLAGS="$CPPFLAGS -msse"
1056	–	AC_CHECK_HEADERS(xmmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse"])
1057	–	CPPFLAGS="$CPPFLAGS -msse2"
1058	–	AC_CHECK_HEADERS(emmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse2"])
1059	–	CPPFLAGS=$saved_CPPFLAGS
1305		;;
1306	<	x86_64)
1307	<	AC_CHECK_HEADERS(mmintrin.h xmmintrin.h emmintrin.h)
1306	>	powerpc)
1307	>	if [[ "x$ac_cv_object_format" = "xmach" ]]; then
1308	>	DYNGEN_OP_FLAGS="-mdynamic-no-pic"
1309	>	fi
1310		;;
1311		esac
1312	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000"
1312	>	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1313	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
1314	>	else
1315	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1316	>	fi
1317	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000 -fno-exceptions -g0"
1318		if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1319		DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
1320		fi
#	Line 1088 | Line 1340 | if [[ "x$ac_cv_use_dyngen" = "xyes" ]];
1340		AC_CACHE_CHECK([whether static data regions are executable],
1341		ac_cv_have_static_data_exec, [
1342		AC_TRY_RUN([int main(void) {
1343	<	#if defined(__powerpc__)
1343	>	#if defined(__powerpc__) || defined(__ppc__)
1344		static unsigned int p[8] = {0x4e800020,};
1345		asm volatile("dcbst 0,%0" : : "r" (p) : "memory");
1346		asm volatile("sync" : : : "memory");
#	Line 1104 | Line 1356 | if [[ "x$ac_cv_use_dyngen" = "xyes" ]];
1356		ac_cv_have_static_data_exec=no
1357		)
1358		])
1359	+	else
1360	+	ac_cv_use_dyngen=no
1361		fi
1362		AC_TRANSLATE_DEFINE(HAVE_STATIC_DATA_EXEC, "$ac_cv_have_static_data_exec",
1363		[Define if your system marks static data pages as executable.])
#	Line 1113 | Line 1367 | if [[ "x$WANT_JIT" = "xyes" ]]; then
1367		fi
1368
1369		dnl Generate Makefile.
1370	+	AC_SUBST(PERL)
1371	+	AC_SUBST(USE_DYNGEN, [$ac_cv_use_dyngen])
1372		AC_SUBST(DYNGENSRCS)
1373		AC_SUBST(DYNGEN_CC)
1374		AC_SUBST(DYNGEN_OP_FLAGS)
#	Line 1130 | Line 1386 | echo
1386		echo SheepShaver configuration summary:
1387		echo
1388		echo SDL support ...................... : $SDL_SUPPORT
1389	+	echo FBDev DGA support ................ : $WANT_FBDEV_DGA
1390		echo XFree86 DGA support .............. : $WANT_XF86_DGA
1391		echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
1392		echo Using PowerPC emulator ........... : $EMULATED_PPC

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