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

Comparing SheepShaver/src/Unix/configure.ac (file contents):
Revision 1.18 by gbeauche, 2005-03-05T19:07:35Z vs.
Revision 1.40 by gbeauche, 2005-11-30T00:02:25Z

#	Line 1 | Line 1
1		dnl Process this file with autoconf to produce a configure script.
2		dnl Written in 2002 by Christian Bauer
3
4	<	AC_INIT([SheepShaver], 2.2, [Christian.Bauer@uni-mainz.de], SheepShaver)
4	>	AC_INIT([SheepShaver], 2.3, [Christian.Bauer@uni-mainz.de], SheepShaver)
5		AC_CONFIG_SRCDIR(main_unix.cpp)
6		AC_PREREQ(2.52)
7		AC_CONFIG_HEADER(config.h)
#	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 127 | 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`$sdl_config --exec-prefix`/lib -lSDL"
150	<	;;
136	<	*)
137	<	sdl_cflags=`$sdl_config --cflags`
138	<	if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
139	<	sdl_libs=`$sdl_config --static-libs`
140	<	else
141	<	sdl_libs=`$sdl_config --libs`
142	<	fi
143	<	;;
144	<	esac
145	>	sdl_cflags=`$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 $sdl_libs"
#	Line 177 | Line 183 | no:linux*|no:netbsd*)
183		AC_CHECK_LIB(pthread, pthread_create, , [
184		AC_CHECK_LIB(c_r, pthread_create, , [
185		AC_CHECK_LIB(PTL, pthread_create, , [
186	<	AC_MSG_ERROR([You need pthreads to run Basilisk II.])
186	>	dnl XXX remove when no pthreads case is merged
187	>	AC_MSG_ERROR([You need pthreads to run SheepShaver.])
188	>	HAVE_PTHREADS=no
189		])
190		])
191		])
192		AC_CHECK_FUNCS(pthread_cancel)
193	+	AC_CHECK_FUNCS(pthread_cond_init pthread_testcancel)
194		AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
195		AC_CHECK_FUNCS(pthread_mutexattr_settype)
196		AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
188	–	if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
189	–	AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
190	–	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 197 | Line 203 | no:linux*|no:netbsd*)
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$WANT_XF86_DGA" = "xyes" ]]; then
#	Line 222 | Line 241 | fi
241
242		dnl We use GTK+ if possible.
243		UISRCS=../dummy/prefs_editor_dummy.cpp
244	<	if [[ "x$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 $GTK_CFLAGS"
#	Line 254 | Line 296 | AC_SYS_LARGEFILE
296		dnl Checks for header files.
297		AC_HEADER_STDC
298		AC_HEADER_SYS_WAIT
299	<	AC_CHECK_HEADERS(malloc.h)
299	>	AC_CHECK_HEADERS(malloc.h stdint.h)
300		AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h)
259	–	AC_CHECK_HEADERS(sys/time.h sys/times.h sys/socket.h)
301		AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h dirent.h)
302	<	AC_CHECK_HEADERS(linux/if.h, [], [], [
303	<	#if HAVE_SYS_SOCKET_H
304	<	# include <sys/socket.h>
302	>	AC_CHECK_HEADERS(sys/socket.h sys/ioctl.h sys/filio.h sys/bitypes.h sys/wait.h)
303	>	AC_CHECK_HEADERS(sys/time.h sys/poll.h sys/select.h arpa/inet.h)
304	>	AC_CHECK_HEADERS(linux/if.h linux/if_tun.h net/if.h net/if_tun.h, [], [], [
305	>	#ifdef HAVE_SYS_TYPES_H
306	>	#include <sys/types.h>
307	>	#endif
308	>	#ifdef HAVE_SYS_SOCKET_H
309	>	#include <sys/socket.h>
310		#endif
311		])
312	<	AC_CHECK_HEADERS(linux/if_tun.h net/if.h net/if_tun.h)
312	>	AC_CHECK_HEADERS(AvailabilityMacros.h)
313	>	AC_CHECK_HEADERS(IOKit/storage/IOBlockStorageDevice.h)
314		AC_CHECK_HEADERS(fenv.h)
315
316		dnl Checks for typedefs, structures, and compiler characteristics.
#	Line 284 | Line 331 | AC_TYPE_SIGNAL
331		AC_HEADER_TIME
332		AC_STRUCT_TM
333
334	+	dnl Check whether sys/socket.h defines type socklen_t.
335	+	dnl (extracted from ac-archive/Miscellaneous)
336	+	AC_CACHE_CHECK([for socklen_t],
337	+	ac_cv_type_socklen_t, [
338	+	AC_TRY_COMPILE([
339	+	#include <sys/types.h>
340	+	#include <sys/socket.h>
341	+	], [socklen_t len = 42; return 0;],
342	+	ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
343	+	dnl When cross-compiling, do not assume anything.
344	+	ac_cv_type_socklen_t="guessing no"
345	+	)
346	+	])
347	+	if [[ "x$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 300 | Line 364 | if [[ "x$ac_cv_signal_sa_restorer" = "xy
364		fi
365
366		dnl Checks for library functions.
367	<	AC_CHECK_FUNCS(strdup strlcpy cfmakeraw)
367	>	AC_CHECK_FUNCS(strdup strerror strlcpy cfmakeraw)
368		AC_CHECK_FUNCS(nanosleep)
369		AC_CHECK_FUNCS(sigaction signal)
370		AC_CHECK_FUNCS(mmap mprotect munmap)
371		AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
372	<	AC_CHECK_FUNCS(posix_memalign memalign valloc)
373	<	AC_CHECK_FUNCS(exp2f log2f exp2 log2 trunc)
372	>	AC_CHECK_FUNCS(exp2f log2f exp2 log2)
373	>	AC_CHECK_FUNCS(floorf roundf ceilf truncf floor round ceil trunc)
374	>	AC_CHECK_FUNCS(poll inet_aton)
375
376		dnl Darwin seems to define mach_task_self() instead of task_self().
377		AC_CHECK_FUNCS(mach_task_self task_self)
#	Line 387 | Line 452 | AC_DEFUN(AC_CHECK_FRAMEWORK, [
452		dnl Check for some MacOS X frameworks
453		AC_CHECK_FRAMEWORK(Carbon, [#include <Carbon/Carbon.h>])
454		AC_CHECK_FRAMEWORK(IOKit, [#include <IOKit/IOKitLib.h>])
455	+	AC_CHECK_FRAMEWORK(CoreFoundation, [#include <CoreFoundation/CoreFoundation.h>])
456
457		dnl Select system-dependant sources.
458		SERIALSRC=serial_unix.cpp
#	Line 397 | Line 463 | EXTFSSRC=extfs_unix.cpp
463		EXTRASYSSRCS=
464		case "$target_os" in
465		linux*)
466	<	ETHERSRC=Linux/ether_linux.cpp
466	>	ETHERSRC=ether_unix.cpp
467		AUDIOSRC=audio_oss_esd.cpp
468		SCSISRC=Linux/scsi_linux.cpp
469		if [[ "x$EMULATED_PPC" = "xno" ]]; then
470	<	EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c ppc_asm.S"
470	>	EXTRASYSSRCS="paranoia.cpp Linux/sheepthreads.c ppc_asm.S"
471		fi
472		;;
473	+	freebsd*)
474	+	ETHERSRC=ether_unix.cpp
475	+	;;
476		netbsd*)
477	+	ETHERSRC=ether_unix.cpp
478		if [[ "x$EMULATED_PPC" = "xno" ]]; then
479	<	EXTRASYSSRCS="NetBSD/paranoia.cpp NetBSD/sheepthreads.c ppc_asm.S"
479	>	EXTRASYSSRCS="paranoia.cpp NetBSD/sheepthreads.c ppc_asm.S"
480		fi
481		;;
482		darwin*)
483	+	ETHERSRC=ether_unix.cpp
484		if [[ "x$EMULATED_PPC" = "xno" ]]; then
485	<	EXTRASYSSRCS="Darwin/paranoia.cpp ppc_asm.S"
485	>	EXTRASYSSRCS="paranoia.cpp ppc_asm.S"
486		fi
487	<	if [[ "x$ac_cv_framework_IOKit" = "xyes" ]]; then
487	>	if [[ "x$ac_cv_framework_IOKit" = "xyes" -a "x$ac_cv_framework_CoreFoundation" = "xyes" ]]; then
488		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/sys_darwin.cpp"
489		fi
490		if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
491		EXTFSSRC=../MacOSX/extfs_macosx.mm
492		fi
493		;;
423	–	cygwin*)
424	–	SERIALSRC="../dummy/serial_dummy.cpp"
425	–	;;
494		esac
495
496	+	dnl Is the slirp library supported?
497	+	if [[ "x$ETHERSRC" = "xether_unix.cpp" ]]; then
498	+	AC_DEFINE(HAVE_SLIRP, 1, [Define if slirp library is supported])
499	+	SLIRP_SRCS="\
500	+	../slirp/bootp.c     ../slirp/ip_output.c  ../slirp/tcp_input.c  \
501	+	../slirp/cksum.c     ../slirp/mbuf.c       ../slirp/tcp_output.c \
502	+	../slirp/debug.c     ../slirp/misc.c       ../slirp/tcp_subr.c   \
503	+	../slirp/if.c        ../slirp/sbuf.c       ../slirp/tcp_timer.c  \
504	+	../slirp/ip_icmp.c   ../slirp/slirp.c      ../slirp/tftp.c       \
505	+	../slirp/ip_input.c  ../slirp/socket.c     ../slirp/udp.c"
506	+	fi
507	+	AC_SUBST(SLIRP_SRCS)
508	+
509		dnl SDL overrides
510		if [[ "x$WANT_SDL" = "xyes" ]]; then
511		AC_DEFINE(USE_SDL, 1, [Define to enble SDL support.])
#	Line 436 | Line 517 | if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; th
517		if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
518		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
519		else
520	<	case "$target_os" in
440	<	cygwin*)
441	<	EXTRASYSSRCS="$EXTRASYSSRCS ../Windows/clip_windows.cpp"
442	<	;;
443	<	*)
444	<	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
445	<	;;
446	<	esac
520	>	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
521		fi
522		else
523		VIDEOSRCS="video_x.cpp"
#	Line 871 | Line 945 | fi
945
946		dnl Check addressing mode to use
947		AC_MSG_CHECKING([for addressing mode to use])
874	–	case "$os_target" in
875	–	cygwin*)
876	–	WANT_ADDRESSING_MODE="direct,cygwin-hack"
877	–	NATMEM_OFFSET=
878	–	;;
879	–	esac
948		if [[ "$EMULATED_PPC" != "yes" ]]; then
949		if [[ "$WANT_ADDRESSING_MODE" != "real" ]]; then
950		AC_MSG_WARN([Running in native PowerPC mode, force use of Real Addressing.])
#	Line 958 | Line 1026 | EOF
1026		fi
1027		AC_MSG_RESULT($WANT_ADDRESSING_MODE)
1028
1029	+	dnl Utility macro used by next two tests.
1030	+	dnl AC_EXAMINE_OBJECT(C source code,
1031	+	dnl     commands examining object file,
1032	+	dnl     [commands to run if compile failed]):
1033	+	dnl
1034	+	dnl Compile the source code to an object file; then convert it into a
1035	+	dnl printable representation.  All unprintable characters and
1036	+	dnl asterisks (*) are replaced by dots (.).  All white space is
1037	+	dnl deleted.  Newlines (ASCII 0x10) in the input are preserved in the
1038	+	dnl output, but runs of newlines are compressed to a single newline.
1039	+	dnl Finally, line breaks are forcibly inserted so that no line is
1040	+	dnl longer than 80 columns and the file ends with a newline.  The
1041	+	dnl result of all this processing is in the file conftest.dmp, which
1042	+	dnl may be examined by the commands in the second argument.
1043	+	dnl
1044	+	AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
1045	+	[AC_LANG_SAVE
1046	+	AC_LANG_C
1047	+	dnl Next bit cribbed from AC_TRY_COMPILE.
1048	+	cat > conftest.$ac_ext <<EOF
1049	+	[#line __oline__ "configure"
1050	+	#include "confdefs.h"
1051	+	$1
1052	+	]EOF
1053	+	if AC_TRY_EVAL(ac_compile); then
1054	+	od -c conftest.o |
1055	+	sed ['s/^[0-7]*[    ]*/ /
1056	+	s/\*/./g
1057	+	s/ \\n/*/g
1058	+	s/ [0-9][0-9][0-9]/./g
1059	+	s/  \\[^ ]/./g'] |
1060	+	tr -d '
1061	+	' | tr -s '*' '
1062	+	' | fold | sed '$a\
1063	+	' > conftest.dmp
1064	+	$2
1065	+	ifelse($3, , , else
1066	+	$3
1067	+	)dnl
1068	+	fi
1069	+	rm -rf conftest*
1070	+	AC_LANG_RESTORE])
1071	+
1072	+	dnl Floating point format probe.
1073	+	dnl The basic concept is the same as the above: grep the object
1074	+	dnl file for an interesting string.  We have to watch out for
1075	+	dnl rounding changing the values in the object, however; this is
1076	+	dnl handled by ignoring the least significant byte of the float.
1077	+	dnl
1078	+	dnl Does not know about VAX G-float or C4x idiosyncratic format.
1079	+	dnl It does know about PDP-10 idiosyncratic format, but this is
1080	+	dnl not presently supported by GCC.  S/390 "binary floating point"
1081	+	dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
1082	+	dnl as ASCII?)
1083	+	dnl
1084	+	AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
1085	+	[AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
1086	+	[gcc_AC_EXAMINE_OBJECT(
1087	+	[/* This will not work unless sizeof(double) == 8.  */
1088	+	extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
1089	+
1090	+	/* This structure must have no internal padding.  */
1091	+	struct possibility {
1092	+	char prefix[8];
1093	+	double candidate;
1094	+	char postfix[8];
1095	+	};
1096	+
1097	+	#define C(cand) { "\nformat:", cand, ":tamrof\n" }
1098	+	struct possibility table [] =
1099	+	{
1100	+	C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
1101	+	C( 3.53802595280598432000e+18), /* D__float - VAX */
1102	+	C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
1103	+	C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
1104	+	C(-5.22995989424860458374e+10)  /* IBMHEXFP - s/390 format, EBCDIC */
1105	+	};],
1106	+	[if   grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1107	+	ac_cv_c_float_format='IEEE (big-endian)'
1108	+	elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
1109	+	ac_cv_c_float_format='IEEE (big-endian)'
1110	+	elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
1111	+	ac_cv_c_float_format='IEEE (little-endian)'
1112	+	elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
1113	+	ac_cv_c_float_format='IEEE (little-endian)'
1114	+	elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
1115	+	ac_cv_c_float_format='VAX D-float'
1116	+	elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
1117	+	ac_cv_c_float_format='PDP-10'
1118	+	elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1119	+	ac_cv_c_float_format='IBM 370 hex'
1120	+	else
1121	+	AC_MSG_ERROR(Unknown floating point format)
1122	+	fi],
1123	+	[AC_MSG_ERROR(compile failed)])
1124	+	])
1125	+	# IEEE is the default format.  If the float endianness isn't the same
1126	+	# as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
1127	+	# (which is a tristate: yes, no, default).  This is only an issue with
1128	+	# IEEE; the other formats are only supported by a few machines each,
1129	+	# all with the same endianness.
1130	+	format=IEEE_FLOAT_FORMAT
1131	+	fbigend=
1132	+	case $ac_cv_c_float_format in
1133	+	'IEEE (big-endian)' )
1134	+	if test $ac_cv_c_bigendian = no; then
1135	+	fbigend=1
1136	+	fi
1137	+	;;
1138	+	'IEEE (little-endian)' )
1139	+	if test $ac_cv_c_bigendian = yes; then
1140	+	fbigend=0
1141	+	fi
1142	+	;;
1143	+	'VAX D-float' )
1144	+	format=VAX_FLOAT_FORMAT
1145	+	;;
1146	+	'PDP-10' )
1147	+	format=PDP10_FLOAT_FORMAT
1148	+	;;
1149	+	'IBM 370 hex' )
1150	+	format=IBM_FLOAT_FORMAT
1151	+	;;
1152	+	esac
1153	+	AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
1154	+	[Define to the floating point format of the host machine.])
1155	+	if test -n "$fbigend"; then
1156	+	AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
1157	+	[Define to 1 if the host machine stores floating point numbers in
1158	+	memory with the word containing the sign bit at the lowest address,
1159	+	or to 0 if it does it the other way around.
1160	+
1161	+	This macro should not be defined if the ordering is the same as for
1162	+	multi-word integers.])
1163	+	fi
1164	+	])
1165	+
1166	+	dnl Check for host float format
1167	+	gcc_AC_C_FLOAT_FORMAT
1168	+
1169		dnl Platform specific binary postprocessor
1170		AC_PATH_PROG(BLESS, "true")
1171		if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
#	Line 968 | Line 1176 | fi
1176		dnl Check for GCC 2.7 or higher.
1177		HAVE_GCC27=no
1178		AC_MSG_CHECKING(for GCC 2.7 or higher)
1179	<	AC_EGREP_CPP(xyes,
1180	<	[#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
1181	<	xyes
1182	<	#endif
1183	<	], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
1179	>	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5)
1180	>	# error gcc < 2.7
1181	>	#endif
1182	>	]])],
1183	>	[AC_MSG_RESULT(yes); HAVE_GCC27=yes],
1184	>	[AC_MSG_RESULT(no)])
1185
1186		dnl Check for GCC 3.0 or higher.
1187		HAVE_GCC30=no
1188		AC_MSG_CHECKING(for GCC 3.0 or higher)
1189	<	AC_EGREP_CPP(xyes,
1190	<	[#if __GNUC__ >= 3
1191	<	xyes
1192	<	#endif
1193	<	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
1189	>	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ >= 3)
1190	>	# error gcc < 3
1191	>	#endif
1192	>	]])],
1193	>	[AC_MSG_RESULT(yes); HAVE_GCC30=yes],
1194	>	[AC_MSG_RESULT(no)])
1195
1196		dnl Check for ICC.
1197		AC_MSG_CHECKING(for ICC)
#	Line 992 | Line 1202 | fi
1202		AC_MSG_RESULT($HAVE_ICC)
1203
1204		dnl Determine the generated object format
1205	<	AC_CACHE_CHECK([whether the compiler can generate ELF objects],
1205	>	AC_CACHE_CHECK([the format of compiler generated objects],
1206		ac_cv_object_format, [
1207		echo 'int i;' > conftest.$ac_ext
1208		ac_cv_object_format=no
#	Line 1001 | Line 1211 | AC_CACHE_CHECK([whether the compiler can
1211		*"ELF"*)
1212		ac_cv_object_format=elf
1213		;;
1214	+	*"Mach-O"*)
1215	+	ac_cv_object_format=mach
1216	+	;;
1217		*)
1218		ac_cv_object_format=unknown
1219		;;
#	Line 1009 | Line 1222 | AC_CACHE_CHECK([whether the compiler can
1222		rm -rf conftest*
1223		])
1224
1225	+	dnl Add -fno-strict-aliasing for slirp sources
1226	+	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1227	+	SAVED_CFLAGS="$CFLAGS"
1228	+	CFLAGS="$CFLAGS -fno-strict-aliasing"
1229	+	AC_CACHE_CHECK([whether the compiler supports -fno-strict-aliasing],
1230	+	ac_cv_gcc_no_strict_aliasing, [
1231	+	AC_TRY_COMPILE([],[],
1232	+	[ac_cv_gcc_no_strict_aliasing=yes; AC_SUBST(SLIRP_CFLAGS, "-fno-strict-aliasing")],
1233	+	[ac_cv_gcc_no_strict_aliasing=no])
1234	+	])
1235	+	CFLAGS="$SAVED_CFLAGS"
1236	+	fi
1237	+
1238	+	dnl Add -mdynamic-no-pic for MacOS X (XXX icc10 will support MacOS X)
1239	+	if [[ "x$HAVE_GCC30" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1240	+	SAVED_CFLAGS="$CFLAGS"
1241	+	CFLAGS="$CFLAGS -mdynamic-no-pic"
1242	+	AC_CACHE_CHECK([whether the compiler supports -mdynamic-no-pic],
1243	+	ac_cv_gcc_mdynamic_no_pic, [
1244	+	AC_TRY_COMPILE([],[],[ac_cv_gcc_mdynamic_no_pic=yes],[ac_cv_gcc_mdynamic_no_pic=no])
1245	+	])
1246	+	if [[ "x$ac_cv_gcc_mdynamic_no_pic" = "xyes" ]]; then
1247	+	CXXFLAGS="$CXXFLAGS -mdynamic-no-pic"
1248	+	else
1249	+	CFLAGS="$SAVED_CFLAGS"
1250	+	fi
1251	+	fi
1252	+
1253		dnl CPU emulator sources
1254		if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1255		CPUSRCS="\
1256		../kpx_cpu/src/mathlib/ieeefp.cpp \
1257	+	../kpx_cpu/src/mathlib/mathlib.cpp \
1258		../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
1259		../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
1260		../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
#	Line 1033 | Line 1275 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1275		i?86:elf)
1276		ac_cv_use_dyngen=yes
1277		;;
1278	+	powerpc:mach)
1279	+	ac_cv_use_dyngen=yes
1280	+	;;
1281		*:*)
1282		ac_cv_use_dyngen=no
1283		;;
#	Line 1050 | Line 1295 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1295		done
1296		fi
1297		fi
1298	<	if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include <limits>' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then
1298	>	if [[ -z "$DYNGEN_CC" ]]; then
1299		ac_cv_use_dyngen=no
1300		fi
1301		])
#	Line 1058 | Line 1303 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1303		case $host_cpu in
1304		i?86)
1305		DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
1061	–	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1062	–	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
1063	–	else
1064	–	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1065	–	fi
1066	–	saved_CPPFLAGS=$CPPFLAGS
1067	–	CPPFLAGS="$CPPFLAGS -mmmx"
1068	–	AC_CHECK_HEADERS(mmintrin.h,  [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -mmmx"])
1069	–	CPPFLAGS="$CPPFLAGS -msse"
1070	–	AC_CHECK_HEADERS(xmmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse"])
1071	–	CPPFLAGS="$CPPFLAGS -msse2"
1072	–	AC_CHECK_HEADERS(emmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse2"])
1073	–	CPPFLAGS=$saved_CPPFLAGS
1306		;;
1307	<	x86_64)
1308	<	AC_CHECK_HEADERS(mmintrin.h xmmintrin.h emmintrin.h)
1307	>	powerpc)
1308	>	if [[ "x$ac_cv_object_format" = "xmach" ]]; then
1309	>	DYNGEN_OP_FLAGS="-mdynamic-no-pic"
1310	>	fi
1311		;;
1312		esac
1313	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000 -g0"
1313	>	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1314	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
1315	>	else
1316	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1317	>	fi
1318	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-functions -finline-limit=10000 -fno-exceptions -g0"
1319		if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1320		DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
1321		fi
#	Line 1102 | Line 1341 | if [[ "x$ac_cv_use_dyngen" = "xyes" ]];
1341		AC_CACHE_CHECK([whether static data regions are executable],
1342		ac_cv_have_static_data_exec, [
1343		AC_TRY_RUN([int main(void) {
1344	<	#if defined(__powerpc__)
1344	>	#if defined(__powerpc__) || defined(__ppc__)
1345		static unsigned int p[8] = {0x4e800020,};
1346		asm volatile("dcbst 0,%0" : : "r" (p) : "memory");
1347		asm volatile("sync" : : : "memory");
#	Line 1148 | Line 1387 | echo
1387		echo SheepShaver configuration summary:
1388		echo
1389		echo SDL support ...................... : $SDL_SUPPORT
1390	+	echo FBDev DGA support ................ : $WANT_FBDEV_DGA
1391		echo XFree86 DGA support .............. : $WANT_XF86_DGA
1392		echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
1393		echo Using PowerPC emulator ........... : $EMULATED_PPC

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