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

Comparing SheepShaver/src/Unix/configure.ac (file contents):
Revision 1.8 by gbeauche, 2004-11-13T14:09:15Z vs.
Revision 1.31 by gbeauche, 2005-07-01T06:16:00Z

#	Line 17 | Line 17 | ulimit -c 0
17		dnl Options.
18		AC_ARG_ENABLE(jit,          [  --enable-jit            enable JIT compiler [default=yes]], [WANT_JIT=$enableval], [WANT_JIT=yes])
19		AC_ARG_ENABLE(ppc-emulator, [  --enable-ppc-emulator   use the selected PowerPC emulator [default=auto]], [WANT_EMULATED_PPC=$enableval], [WANT_EMULATED_PPC=auto])
20	+	AC_ARG_ENABLE(fbdev-dga,    [  --enable-fbdev-dga      use direct frame buffer access via /dev/fb0 [default=yes]], [WANT_FBDEV_DGA=$enableval], [WANT_FBDEV_DGA=yes])
21		AC_ARG_ENABLE(xf86-dga,     [  --enable-xf86-dga       use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
22	<	AC_ARG_ENABLE(xf86-vidmode, [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=no]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=no])
22	>	AC_ARG_ENABLE(xf86-vidmode, [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
23		AC_ARG_ENABLE(vosf,         [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
24		AC_ARG_WITH(esd,            [  --with-esd              support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
25	<	AC_ARG_WITH(gtk,            [  --with-gtk              use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes])
25	>	AC_ARG_WITH(gtk,            [  --with-gtk              use GTK user interface [default=yes]],
26	>	[case "$withval" in
27	>	gtk1)      WANT_GTK="gtk";;
28	>	gtk|gtk2)  WANT_GTK="$withval";;
29	>	yes)       WANT_GTK="gtk2 gtk";;
30	>	*)         WANT_GTK="no";;
31	>	esac],
32	>	[WANT_GTK="gtk2 gtk"])
33		AC_ARG_WITH(mon,            [  --with-mon              use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
34		AC_ARG_WITH(dgcc,           [  --with-dgcc=COMPILER    use C++ COMPILER to compile synthetic opcodes], [DYNGEN_CC=$withval])
35
#	Line 31 | Line 39 | AC_ARG_ENABLE(addressing,
39		[case "$enableval" in
40		real)        WANT_ADDRESSING_MODE="real";;
41		direct)      WANT_ADDRESSING_MODE="direct";;
42	<	direct,0x*)  WANT_ADDRESSING_MODE="direct"; NATMEM_OFFSET=`echo "$enableval" | sed -n '/direct,\(0[[xX]][[0-9A-Fa-f]]*\)/s//\1/p'`;;
42	>	direct,0x*)  WANT_ADDRESSING_MODE="direct"; NATMEM_OFFSET=`echo "$enableval" | sed -n '/direct,\(0[[xX]][[0-9A-Fa-f]]*\([[UuLl]]\{1,2\}\)\?\)$/s//\1/p'`;;
43		esac],
44		[WANT_ADDRESSING_MODE="real"]
45		)
#	Line 48 | Line 56 | AC_PROG_CXX
56		AC_PROG_MAKE_SET
57		AC_PROG_INSTALL
58		AC_PROG_EGREP
59	+	AC_PATH_PROGS(FILE, [file false])
60	+	AC_PATH_PROG(PERL, [perl])
61
62		dnl Check for PowerPC target CPU.
63		HAVE_PPC=no
#	Line 104 | Line 114 | if [[ "x$WANT_MON" = "xyes" ]]; then
114		WANT_MON=no
115		fi
116		fi
117	+	AC_SUBST(MONSRCS)
118
119		dnl Checks for libraries.
120		AC_CHECK_LIB(posix4, sem_init)
#	Line 124 | Line 135 | fi
135		if [[ "x$WANT_SDL" = "xyes" ]]; then
136		AC_PATH_PROG(sdl_config, "sdl-config")
137		if [[ -n "$sdl_config" ]]; then
138	<	sdl_cflags=`$sdl_config --cflags`
139	<	if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
140	<	sdl_libs=`$sdl_config --static-libs`
141	<	else
142	<	sdl_libs=`$sdl_config --libs`
143	<	fi
138	>	case $target_os in
139	>	# Special treatment for Cygwin so that we can still use the POSIX layer
140	>	*cygwin*)
141	>	sdl_cflags="-I`$sdl_config --prefix`/include/SDL"
142	>	sdl_libs="-L`$sdl_config --exec-prefix`/lib -lSDL"
143	>	;;
144	>	*)
145	>	sdl_cflags=`$sdl_config --cflags`
146	>	if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
147	>	sdl_libs=`$sdl_config --static-libs`
148	>	else
149	>	sdl_libs=`$sdl_config --libs`
150	>	fi
151	>	;;
152	>	esac
153		CFLAGS="$CFLAGS $sdl_cflags"
154		CXXFLAGS="$CXXFLAGS $sdl_cflags"
155		LIBS="$LIBS $sdl_libs"
156		else
157		WANT_SDL=no
158	+	WANT_SDL_VIDEO=no
159	+	WANT_SDL_AUDIO=no
160		fi
161		SDL_SUPPORT=`echo "$SDL_SUPPORT" | sed -e "s/^ //"`
162		else
#	Line 142 | Line 164 | else
164		fi
165
166		dnl We need X11, if not using SDL.
167	<	if [[ "x$WANT_SDL" = "xno" ]]; then
167	>	if [[ "x$WANT_SDL_VIDEO" != "xyes" ]]; then
168		AC_PATH_XTRA
169		if [[ "x$no_x" = "xyes" ]]; then
170		AC_MSG_ERROR([You need X11 to run SheepShaver.])
#	Line 155 | Line 177 | fi
177		dnl We need pthreads on non-PowerPC systems. Try libpthread first, then libc_r (FreeBSD), then PTL.
178		HAVE_PTHREADS=yes
179		case $EMULATED_PPC:$target_os in
180	<	no:linux*)
180	>	no:linux*|no:netbsd*)
181		dnl We do have our own pthread_cancel() implementation
182		AC_DEFINE(HAVE_PTHREAD_CANCEL, 1, [Define if you have the pthread_cancel function.])
183		;;
#	Line 163 | Line 185 | no:linux*)
185		AC_CHECK_LIB(pthread, pthread_create, , [
186		AC_CHECK_LIB(c_r, pthread_create, , [
187		AC_CHECK_LIB(PTL, pthread_create, , [
188	<	AC_MSG_ERROR([You need pthreads to run Basilisk II.])
188	>	dnl XXX remove when no pthreads case is merged
189	>	AC_MSG_ERROR([You need pthreads to run SheepShaver.])
190	>	HAVE_PTHREADS=no
191		])
192		])
193		])
194		AC_CHECK_FUNCS(pthread_cancel)
195	+	AC_CHECK_FUNCS(pthread_cond_init)
196		AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
197		AC_CHECK_FUNCS(pthread_mutexattr_settype)
198		AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
174	–	if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
175	–	AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
176	–	fi
199		dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
200		SEMSRC=
201		AC_CHECK_FUNCS(sem_init, , [
#	Line 183 | Line 205 | no:linux*)
205		])
206		;;
207		esac
208	+	if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
209	+	AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
210	+	fi
211	+
212	+	dnl We use FBDev DGA if possible.
213	+	if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
214	+	AC_CHECK_HEADER(linux/fb.h, [
215	+	AC_DEFINE(ENABLE_FBDEV_DGA, 1, [Define if using Linux fbdev extension.])
216	+	], [
217	+	AC_MSG_WARN([Could not find Linux FBDev extension, ignoring --enable-fbdev-dga.])
218	+	WANT_FBDEV_DGA=no
219	+	])
220	+	fi
221
222		dnl We use XFree86 DGA if possible.
223		if [[ "x$WANT_XF86_DGA" = "xyes" ]]; then
#	Line 208 | Line 243 | fi
243
244		dnl We use GTK+ if possible.
245		UISRCS=../dummy/prefs_editor_dummy.cpp
246	<	if [[ "x$WANT_GTK" = "xyes" ]]; then
246	>	case "x$WANT_GTK" in
247	>	xgtk2*)
248	>	AM_PATH_GTK_2_0(1.3.15, [
249	>	AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
250	>	CFLAGS="$CFLAGS $GTK_CFLAGS"
251	>	CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
252	>	LIBS="$LIBS $GTK_LIBS"
253	>	UISRCS=prefs_editor_gtk.cpp
254	>	WANT_GTK=gtk2
255	>	], [
256	>	case "x${WANT_GTK}x" in
257	>	*gtkx)
258	>	AC_MSG_WARN([Could not find GTK+ 2.0, trying with GTK+ 1.2.])
259	>	WANT_GTK=gtk
260	>	;;
261	>	*)
262	>	AC_MSG_WARN([Could not find GTK+, disabling user interface.])
263	>	WANT_GTK=no
264	>	;;
265	>	esac
266	>	])
267	>	;;
268	>	esac
269	>	if [[ "x$WANT_GTK" = "xgtk" ]]; then
270		AM_PATH_GTK(1.2.0, [
271		AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
272		CFLAGS="$CFLAGS $GTK_CFLAGS"
#	Line 240 | Line 298 | AC_SYS_LARGEFILE
298		dnl Checks for header files.
299		AC_HEADER_STDC
300		AC_HEADER_SYS_WAIT
301	+	AC_CHECK_HEADERS(malloc.h stdint.h)
302		AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h)
303		AC_CHECK_HEADERS(sys/time.h sys/times.h sys/socket.h)
304		AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h dirent.h)
#	Line 249 | Line 308 | AC_CHECK_HEADERS(linux/if.h, [], [], [
308		#endif
309		])
310		AC_CHECK_HEADERS(linux/if_tun.h net/if.h net/if_tun.h)
311	+	AC_CHECK_HEADERS(fenv.h)
312
313		dnl Checks for typedefs, structures, and compiler characteristics.
314		AC_C_BIGENDIAN
#	Line 289 | Line 349 | AC_CHECK_FUNCS(nanosleep)
349		AC_CHECK_FUNCS(sigaction signal)
350		AC_CHECK_FUNCS(mmap mprotect munmap)
351		AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
352	<	AC_CHECK_FUNCS(posix_memalign memalign valloc)
352	>	AC_CHECK_FUNCS(exp2f log2f exp2 log2)
353	>	AC_CHECK_FUNCS(floorf roundf ceilf truncf floor round ceil trunc)
354
355		dnl Darwin seems to define mach_task_self() instead of task_self().
356		AC_CHECK_FUNCS(mach_task_self task_self)
#	Line 301 | Line 362 | no:linux*)
362		;;
363		*:*)
364		AC_SEARCH_LIBS(clock_gettime, [rt posix4])
365	<	AC_CHECK_FUNCS(clock_gettime)
365	>	AC_CHECK_FUNCS(clock_gettime clock_nanosleep)
366		;;
367		esac
368
369	+	dnl Check for headers and functions related to pty support (sshpty.c)
370	+	dnl From openssh-3.2.2p1 configure.ac
371	+	AC_CHECK_HEADERS(strings.h login.h sys/bsdtty.h sys/stat.h util.h pty.h)
372	+	AC_CHECK_FUNCS(_getpty vhangup strlcpy)
373	+
374	+	case "$host" in
375	+	*-*-hpux10.26)
376	+	disable_ptmx_check=yes
377	+	;;
378	+	*-*-linux*)
379	+	no_dev_ptmx=1
380	+	;;
381	+	mips-sony-bsd|mips-sony-newsos4)
382	+	AC_DEFINE(HAVE_NEWS4, 1, [Define if you are on NEWS-OS (additions from openssh-3.2.2p1, for sshpty.c).])
383	+	;;
384	+	*-*-sco3.2v4*)
385	+	no_dev_ptmx=1
386	+	;;
387	+	*-*-sco3.2v5*)
388	+	no_dev_ptmx=1
389	+	;;
390	+	*-*-cygwin*)
391	+	no_dev_ptmx=1
392	+	;;
393	+	esac
394	+
395	+	if test -z "$no_dev_ptmx" ; then
396	+	if test "x$disable_ptmx_check" != "xyes" ; then
397	+	AC_CHECK_FILE([/dev/ptmx],
398	+	[
399	+	AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX, 1, [Define if you have /dev/ptmx.])
400	+	have_dev_ptmx=1
401	+	]
402	+	)
403	+	fi
404	+	fi
405	+	AC_CHECK_FILE([/dev/ptc],
406	+	[
407	+	AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC, 1, [Define if you have /dev/ptc.])
408	+	have_dev_ptc=1
409	+	]
410	+	)
411	+	dnl (end of code from openssh-3.2.2p1 configure.ac)
412	+
413		dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES)
414		AC_DEFUN(AC_CHECK_FRAMEWORK, [
415		AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl
#	Line 340 | Line 445 | linux*)
445		AUDIOSRC=audio_oss_esd.cpp
446		SCSISRC=Linux/scsi_linux.cpp
447		if [[ "x$EMULATED_PPC" = "xno" ]]; then
448	<	EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
448	>	EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c ppc_asm.S"
449	>	fi
450	>	;;
451	>	netbsd*)
452	>	if [[ "x$EMULATED_PPC" = "xno" ]]; then
453	>	EXTRASYSSRCS="NetBSD/paranoia.cpp NetBSD/sheepthreads.c ppc_asm.S"
454		fi
455		;;
456		darwin*)
457		if [[ "x$EMULATED_PPC" = "xno" ]]; then
458	<	EXTRASYSSRCS="Darwin/paranoia.cpp Linux/asm_linux.S"
458	>	EXTRASYSSRCS="Darwin/paranoia.cpp ppc_asm.S"
459		fi
460		if [[ "x$ac_cv_framework_IOKit" = "xyes" ]]; then
461		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/sys_darwin.cpp"
#	Line 354 | Line 464 | darwin*)
464		EXTFSSRC=../MacOSX/extfs_macosx.mm
465		fi
466		;;
467	+	cygwin*)
468	+	SERIALSRC="../dummy/serial_dummy.cpp"
469	+	;;
470		esac
471
472		dnl SDL overrides
#	Line 367 | Line 480 | if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; th
480		if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
481		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
482		else
483	<	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
483	>	case "$target_os" in
484	>	cygwin*)
485	>	EXTRASYSSRCS="$EXTRASYSSRCS ../Windows/clip_windows.cpp"
486	>	;;
487	>	*)
488	>	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
489	>	;;
490	>	esac
491		fi
492		else
493		VIDEOSRCS="video_x.cpp"
#	Line 379 | Line 499 | if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; th
499		AUDIOSRC="../SDL/audio_sdl.cpp"
500		fi
501
502	<	SYSSRCS="$VIDEOSRCS $EXTFSSRC $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
502	>	SYSSRCS="$VIDEOSRCS $EXTFSSRC $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $EXTRASYSSRCS"
503
504		dnl Define a macro that translates a yesno-variable into a C macro definition
505		dnl to be put into the config.h file
#	Line 683 | Line 803 | fi
803		AC_TRANSLATE_DEFINE(HAVE_MACH_EXCEPTIONS, "$ac_cv_have_mach_exceptions",
804		[Define if your system supports Mach exceptions.])
805
806	+	dnl Check if Windows exceptions are supported.
807	+	AC_CACHE_CHECK([whether your system supports Windows exceptions],
808	+	ac_cv_have_win32_exceptions, [
809	+	AC_LANG_SAVE
810	+	AC_LANG_CPLUSPLUS
811	+	AC_TRY_RUN([
812	+	#define HAVE_WIN32_EXCEPTIONS 1
813	+	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
814	+	#include "vm_alloc.cpp"
815	+	#include "sigsegv.cpp"
816	+	], [
817	+	sigsegv_recovery=win32
818	+	ac_cv_have_win32_exceptions=yes
819	+	],
820	+	ac_cv_have_win32_exceptions=no,
821	+	dnl When cross-compiling, do not assume anything.
822	+	ac_cv_have_win32_exceptions=no
823	+	)
824	+	AC_LANG_RESTORE
825	+	]
826	+	)
827	+	AC_TRANSLATE_DEFINE(HAVE_WIN32_EXCEPTIONS, "$ac_cv_have_win32_exceptions",
828	+	[Define if your system supports Windows exceptions.])
829	+
830		dnl Otherwise, check if extended signals are supported.
831		if [[ -z "$sigsegv_recovery" ]]; then
832		AC_CACHE_CHECK([whether your system supports extended signal handlers],
#	Line 771 | Line 915 | fi
915
916		dnl Check addressing mode to use
917		AC_MSG_CHECKING([for addressing mode to use])
918	+	case "$os_target" in
919	+	cygwin*)
920	+	WANT_ADDRESSING_MODE="direct,cygwin-hack"
921	+	NATMEM_OFFSET=
922	+	;;
923	+	esac
924		if [[ "$EMULATED_PPC" != "yes" ]]; then
925		if [[ "$WANT_ADDRESSING_MODE" != "real" ]]; then
926		AC_MSG_WARN([Running in native PowerPC mode, force use of Real Addressing.])
#	Line 821 | Line 971 | int main(void)
971		memset(m, 0, ranges[[i]].size);
972		vm_release(m, ranges[[i]].size);
973		if (i == n_ranges - 1) {
974	<	printf("0x%08x\n", ofs);
974	>	if (sizeof(void *) == 8 && ofs > 0xffffffff)
975	>	printf("0x%lxul\n", ofs);
976	>	else
977	>	printf("0x%08x\n", ofs);
978		return 0;
979		}
980		}
#	Line 833 | Line 986 | EOF
986		doit='$CXX conftest.$ac_ext -o conftest.$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS $LIBS $NATMEM_OFFSET_DEF >& AS_MESSAGE_LOG_FD'
987		if AC_TRY_EVAL(doit); then
988		NATMEM_OFFSET=`./conftest.$ac_exeext`
989	<	if [[ -z "$NATMEM_OFFSET" ]]; then
990	<	AC_MSG_ERROR([could not determine a sensible NATMEM_OFFSET value])
838	<	else
839	<	WANT_ADDRESSING_MODE="direct,$NATMEM_OFFSET"
840	<	fi
989	>	else
990	>	NATMEM_OFFSET=
991		fi
992		rm -f conftest*
993		AC_LANG_RESTORE
994	+
995	+	if [[ -z "$NATMEM_OFFSET" ]]; then
996	+	AC_MSG_ERROR([could not determine a sensible NATMEM_OFFSET value])
997	+	else
998	+	WANT_ADDRESSING_MODE="direct,$NATMEM_OFFSET"
999	+	AC_DEFINE_UNQUOTED(NATMEM_OFFSET, $NATMEM_OFFSET,
1000	+	[Define constant offset for Mac address translation])
1001	+	fi
1002		fi
1003		AC_MSG_RESULT($WANT_ADDRESSING_MODE)
1004
1005	<	if [[ -z "$NATMEM_OFFSET" ]]; then
1006	<	NATMEM_OFFSET=0
1005	>	dnl Utility macro used by next two tests.
1006	>	dnl AC_EXAMINE_OBJECT(C source code,
1007	>	dnl     commands examining object file,
1008	>	dnl     [commands to run if compile failed]):
1009	>	dnl
1010	>	dnl Compile the source code to an object file; then convert it into a
1011	>	dnl printable representation.  All unprintable characters and
1012	>	dnl asterisks (*) are replaced by dots (.).  All white space is
1013	>	dnl deleted.  Newlines (ASCII 0x10) in the input are preserved in the
1014	>	dnl output, but runs of newlines are compressed to a single newline.
1015	>	dnl Finally, line breaks are forcibly inserted so that no line is
1016	>	dnl longer than 80 columns and the file ends with a newline.  The
1017	>	dnl result of all this processing is in the file conftest.dmp, which
1018	>	dnl may be examined by the commands in the second argument.
1019	>	dnl
1020	>	AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
1021	>	[AC_LANG_SAVE
1022	>	AC_LANG_C
1023	>	dnl Next bit cribbed from AC_TRY_COMPILE.
1024	>	cat > conftest.$ac_ext <<EOF
1025	>	[#line __oline__ "configure"
1026	>	#include "confdefs.h"
1027	>	$1
1028	>	]EOF
1029	>	if AC_TRY_EVAL(ac_compile); then
1030	>	od -c conftest.o |
1031	>	sed ['s/^[0-7]*[    ]*/ /
1032	>	s/\*/./g
1033	>	s/ \\n/*/g
1034	>	s/ [0-9][0-9][0-9]/./g
1035	>	s/  \\[^ ]/./g'] |
1036	>	tr -d '
1037	>	' | tr -s '*' '
1038	>	' | fold | sed '$a\
1039	>	' > conftest.dmp
1040	>	$2
1041	>	ifelse($3, , , else
1042	>	$3
1043	>	)dnl
1044	>	fi
1045	>	rm -rf conftest*
1046	>	AC_LANG_RESTORE])
1047	>
1048	>	dnl Floating point format probe.
1049	>	dnl The basic concept is the same as the above: grep the object
1050	>	dnl file for an interesting string.  We have to watch out for
1051	>	dnl rounding changing the values in the object, however; this is
1052	>	dnl handled by ignoring the least significant byte of the float.
1053	>	dnl
1054	>	dnl Does not know about VAX G-float or C4x idiosyncratic format.
1055	>	dnl It does know about PDP-10 idiosyncratic format, but this is
1056	>	dnl not presently supported by GCC.  S/390 "binary floating point"
1057	>	dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
1058	>	dnl as ASCII?)
1059	>	dnl
1060	>	AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
1061	>	[AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
1062	>	[gcc_AC_EXAMINE_OBJECT(
1063	>	[/* This will not work unless sizeof(double) == 8.  */
1064	>	extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
1065	>
1066	>	/* This structure must have no internal padding.  */
1067	>	struct possibility {
1068	>	char prefix[8];
1069	>	double candidate;
1070	>	char postfix[8];
1071	>	};
1072	>
1073	>	#define C(cand) { "\nformat:", cand, ":tamrof\n" }
1074	>	struct possibility table [] =
1075	>	{
1076	>	C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
1077	>	C( 3.53802595280598432000e+18), /* D__float - VAX */
1078	>	C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
1079	>	C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
1080	>	C(-5.22995989424860458374e+10)  /* IBMHEXFP - s/390 format, EBCDIC */
1081	>	};],
1082	>	[if   grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1083	>	ac_cv_c_float_format='IEEE (big-endian)'
1084	>	elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
1085	>	ac_cv_c_float_format='IEEE (big-endian)'
1086	>	elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
1087	>	ac_cv_c_float_format='IEEE (little-endian)'
1088	>	elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
1089	>	ac_cv_c_float_format='IEEE (little-endian)'
1090	>	elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
1091	>	ac_cv_c_float_format='VAX D-float'
1092	>	elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
1093	>	ac_cv_c_float_format='PDP-10'
1094	>	elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1095	>	ac_cv_c_float_format='IBM 370 hex'
1096	>	else
1097	>	AC_MSG_ERROR(Unknown floating point format)
1098	>	fi],
1099	>	[AC_MSG_ERROR(compile failed)])
1100	>	])
1101	>	# IEEE is the default format.  If the float endianness isn't the same
1102	>	# as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
1103	>	# (which is a tristate: yes, no, default).  This is only an issue with
1104	>	# IEEE; the other formats are only supported by a few machines each,
1105	>	# all with the same endianness.
1106	>	format=IEEE_FLOAT_FORMAT
1107	>	fbigend=
1108	>	case $ac_cv_c_float_format in
1109	>	'IEEE (big-endian)' )
1110	>	if test $ac_cv_c_bigendian = no; then
1111	>	fbigend=1
1112	>	fi
1113	>	;;
1114	>	'IEEE (little-endian)' )
1115	>	if test $ac_cv_c_bigendian = yes; then
1116	>	fbigend=0
1117	>	fi
1118	>	;;
1119	>	'VAX D-float' )
1120	>	format=VAX_FLOAT_FORMAT
1121	>	;;
1122	>	'PDP-10' )
1123	>	format=PDP10_FLOAT_FORMAT
1124	>	;;
1125	>	'IBM 370 hex' )
1126	>	format=IBM_FLOAT_FORMAT
1127	>	;;
1128	>	esac
1129	>	AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
1130	>	[Define to the floating point format of the host machine.])
1131	>	if test -n "$fbigend"; then
1132	>	AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
1133	>	[Define to 1 if the host machine stores floating point numbers in
1134	>	memory with the word containing the sign bit at the lowest address,
1135	>	or to 0 if it does it the other way around.
1136	>
1137	>	This macro should not be defined if the ordering is the same as for
1138	>	multi-word integers.])
1139		fi
1140	<	AC_DEFINE_UNQUOTED(NATMEM_OFFSET, $NATMEM_OFFSET,
1141	<	[Define constant offset for Mac address translation])
1140	>	])
1141	>
1142	>	dnl Check for host float format
1143	>	gcc_AC_C_FLOAT_FORMAT
1144
1145		dnl Platform specific binary postprocessor
1146		AC_PATH_PROG(BLESS, "true")
#	Line 883 | Line 1175 | if $CXX -V -v 2>&1 | grep -q "Intel(R) C
1175		fi
1176		AC_MSG_RESULT($HAVE_ICC)
1177
1178	<	dnl Test if the compiler can generate ELF objects
1179	<	AC_CACHE_CHECK([whether the compiler can generate ELF objects],
1180	<	ac_cv_elf_objects, [
1178	>	dnl Determine the generated object format
1179	>	AC_CACHE_CHECK([the format of compiler generated objects],
1180	>	ac_cv_object_format, [
1181		echo 'int i;' > conftest.$ac_ext
1182	<	ac_cv_elf_objects=no
1182	>	ac_cv_object_format=no
1183		if AC_TRY_EVAL(ac_compile); then
1184		case `/usr/bin/file conftest.$ac_objext` in
1185		*"ELF"*)
1186	<	ac_cv_elf_objects=yes
1186	>	ac_cv_object_format=elf
1187	>	;;
1188	>	*"Mach-O"*)
1189	>	ac_cv_object_format=mach
1190	>	;;
1191	>	*)
1192	>	ac_cv_object_format=unknown
1193		;;
1194		esac
1195		fi
1196		rm -rf conftest*
1197		])
1198	<	ELF_OBJECTS=$ac_cv_elf_objects
1198	>
1199	>	dnl Add -mdynamic-no-pic for MacOS X
1200	>	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1201	>	SAVED_CFLAGS="$CFLAGS"
1202	>	CFLAGS="$CFLAGS -mdynamic-no-pic"
1203	>	AC_CACHE_CHECK([whether the compiler supports -mdynamic-no-pic],
1204	>	ac_cv_gcc_mdynamic_no_pic, [
1205	>	AC_TRY_COMPILE([],[],[ac_cv_gcc_mdynamic_no_pic=yes],[ac_cv_gcc_mdynamic_no_pic=no])
1206	>	])
1207	>	if [[ "x$ac_cv_gcc_mdynamic_no_pic" = "xyes" ]]; then
1208	>	CXXFLAGS="$CXXFLAGS -mdynamic-no-pic"
1209	>	else
1210	>	CFLAGS="$SAVED_CFLAGS"
1211	>	fi
1212	>	fi
1213
1214		dnl CPU emulator sources
1215		if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1216		CPUSRCS="\
1217	+	../kpx_cpu/src/mathlib/ieeefp.cpp \
1218	+	../kpx_cpu/src/mathlib/mathlib.cpp \
1219		../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
1220		../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
1221		../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
#	Line 912 | Line 1226 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1226		if [[ "x$WANT_JIT" = "xyes" ]]; then
1227		AC_CACHE_CHECK([whether dyngen can be used],
1228		ac_cv_use_dyngen, [
1229	<	case $host_cpu:$ELF_OBJECTS in
1230	<	powerpc:yes)
1229	>	case $host_cpu:$ac_cv_object_format in
1230	>	powerpc:elf)
1231	>	ac_cv_use_dyngen=yes
1232	>	;;
1233	>	x86_64:elf)
1234		ac_cv_use_dyngen=yes
1235		;;
1236	<	x86_64:yes)
1236	>	i?86:elf)
1237		ac_cv_use_dyngen=yes
1238		;;
1239	<	i?86:yes)
1239	>	powerpc:mach)
1240		ac_cv_use_dyngen=yes
1241		;;
1242		*:*)
#	Line 939 | Line 1256 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1256		done
1257		fi
1258		fi
1259	<	if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include <limits>' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then
1259	>	if [[ -z "$DYNGEN_CC" ]]; then
1260		ac_cv_use_dyngen=no
1261		fi
1262		])
#	Line 947 | Line 1264 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1264		case $host_cpu in
1265		i?86)
1266		DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
950	–	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
951	–	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
952	–	else
953	–	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
954	–	fi
955	–	saved_CPPFLAGS=$CPPFLAGS
956	–	CPPFLAGS="$CPPFLAGS -mmmx"
957	–	AC_CHECK_HEADERS(mmintrin.h,  [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -mmmx"])
958	–	CPPFLAGS="$CPPFLAGS -msse"
959	–	AC_CHECK_HEADERS(xmmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse"])
960	–	CPPFLAGS="$CPPFLAGS -msse2"
961	–	AC_CHECK_HEADERS(emmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse2"])
962	–	CPPFLAGS=$saved_CPPFLAGS
1267		;;
1268	<	x86_64)
1269	<	AC_CHECK_HEADERS(mmintrin.h xmmintrin.h emmintrin.h)
1268	>	powerpc)
1269	>	if [[ "x$ac_cv_object_format" = "xmach" ]]; then
1270	>	DYNGEN_OP_FLAGS="-mdynamic-no-pic"
1271	>	fi
1272		;;
1273		esac
1274	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000"
1274	>	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1275	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
1276	>	else
1277	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1278	>	fi
1279	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000 -fno-exceptions -g0"
1280		if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1281		DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
1282		fi
#	Line 991 | Line 1302 | if [[ "x$ac_cv_use_dyngen" = "xyes" ]];
1302		AC_CACHE_CHECK([whether static data regions are executable],
1303		ac_cv_have_static_data_exec, [
1304		AC_TRY_RUN([int main(void) {
1305	<	#if defined(__powerpc__)
1305	>	#if defined(__powerpc__) || defined(__ppc__)
1306		static unsigned int p[8] = {0x4e800020,};
1307		asm volatile("dcbst 0,%0" : : "r" (p) : "memory");
1308		asm volatile("sync" : : : "memory");
#	Line 1007 | Line 1318 | if [[ "x$ac_cv_use_dyngen" = "xyes" ]];
1318		ac_cv_have_static_data_exec=no
1319		)
1320		])
1321	+	else
1322	+	ac_cv_use_dyngen=no
1323		fi
1324		AC_TRANSLATE_DEFINE(HAVE_STATIC_DATA_EXEC, "$ac_cv_have_static_data_exec",
1325		[Define if your system marks static data pages as executable.])
#	Line 1016 | Line 1329 | if [[ "x$WANT_JIT" = "xyes" ]]; then
1329		fi
1330
1331		dnl Generate Makefile.
1332	+	AC_SUBST(PERL)
1333	+	AC_SUBST(USE_DYNGEN, [$ac_cv_use_dyngen])
1334		AC_SUBST(DYNGENSRCS)
1335		AC_SUBST(DYNGEN_CC)
1336		AC_SUBST(DYNGEN_OP_FLAGS)
#	Line 1033 | Line 1348 | echo
1348		echo SheepShaver configuration summary:
1349		echo
1350		echo SDL support ...................... : $SDL_SUPPORT
1351	+	echo FBDev DGA support ................ : $WANT_FBDEV_DGA
1352		echo XFree86 DGA support .............. : $WANT_XF86_DGA
1353		echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
1354		echo Using PowerPC emulator ........... : $EMULATED_PPC

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