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

Comparing SheepShaver/src/Unix/configure.ac (file contents):
Revision 1.15 by gbeauche, 2005-01-19T20:26:01Z vs.
Revision 1.57 by gbeauche, 2007-06-13T12:09:05Z

#	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_ENABLE(standalone-gui,[  --enable-standalone-gui enable a standalone GUI prefs editor [default=no]], [WANT_STANDALONE_GUI=$enableval], [WANT_STANDALONE_GUI=no])
32		AC_ARG_WITH(esd,            [  --with-esd              support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
33	<	AC_ARG_WITH(gtk,            [  --with-gtk              use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes])
33	>	AC_ARG_WITH(gtk,            [  --with-gtk              use GTK user interface [default=yes]],
34	>	[case "$withval" in
35	>	gtk1)      WANT_GTK="gtk";;
36	>	gtk|gtk2)  WANT_GTK="$withval";;
37	>	yes)       WANT_GTK="gtk2 gtk";;
38	>	*)         WANT_GTK="no";;
39	>	esac],
40	>	[WANT_GTK="gtk2 gtk"])
41		AC_ARG_WITH(mon,            [  --with-mon              use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
42		AC_ARG_WITH(dgcc,           [  --with-dgcc=COMPILER    use C++ COMPILER to compile synthetic opcodes], [DYNGEN_CC=$withval])
43
#	Line 48 | Line 64 | AC_PROG_CXX
64		AC_PROG_MAKE_SET
65		AC_PROG_INSTALL
66		AC_PROG_EGREP
67	<	AC_CHECK_PROGS(FILE, [file false])
67	>	AC_PATH_PROGS(FILE, [file false])
68	>	AC_PATH_PROG(PERL, [perl])
69
70		dnl Check for PowerPC target CPU.
71		HAVE_PPC=no
#	Line 109 | Line 126 | AC_SUBST(MONSRCS)
126
127		dnl Checks for libraries.
128		AC_CHECK_LIB(posix4, sem_init)
129	+	AC_CHECK_LIB(m, cos)
130
131		dnl Do we need SDL?
132		WANT_SDL=no
#	Line 126 | Line 144 | fi
144		if [[ "x$WANT_SDL" = "xyes" ]]; then
145		AC_PATH_PROG(sdl_config, "sdl-config")
146		if [[ -n "$sdl_config" ]]; then
147	<	case $target_os in
148	<	# Special treatment for Cygwin so that we can still use the POSIX layer
149	<	*cygwin*)
150	<	sdl_cflags="-I`$sdl_config --prefix`/include/SDL"
151	<	sdl_libs="-L`$sdl_config --exec-prefix`/lib -lSDL"
152	<	;;
135	<	*)
136	<	sdl_cflags=`$sdl_config --cflags`
137	<	if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
138	<	sdl_libs=`$sdl_config --static-libs`
139	<	else
140	<	sdl_libs=`$sdl_config --libs`
141	<	fi
142	<	;;
143	<	esac
147	>	sdl_cflags=`$sdl_config --cflags`
148	>	if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
149	>	sdl_libs=`$sdl_config --static-libs`
150	>	else
151	>	sdl_libs=`$sdl_config --libs`
152	>	fi
153		CFLAGS="$CFLAGS $sdl_cflags"
154		CXXFLAGS="$CXXFLAGS $sdl_cflags"
155		LIBS="$LIBS $sdl_libs"
#	Line 168 | 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 176 | 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 pthread_testcancel)
196		AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
197		AC_CHECK_FUNCS(pthread_mutexattr_settype)
198		AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
187	–	if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
188	–	AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
189	–	fi
199		dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
200		SEMSRC=
201		AC_CHECK_FUNCS(sem_init, , [
#	Line 196 | Line 205 | no:linux*)
205		])
206		;;
207		esac
208	+	if [[ "x$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 221 | 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	>	WANT_GTK=no
249	>	AM_PATH_GTK_2_0(1.3.15, [
250	>	GUI_CFLAGS="$GTK_CFLAGS"
251	>	GUI_LIBS="$GTK_LIBS"
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	>	WANT_GTK=no
269		AM_PATH_GTK(1.2.0, [
270	<	AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
271	<	CFLAGS="$CFLAGS $GTK_CFLAGS"
272	<	CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
229	<	LIBS="$LIBS $GTK_LIBS"
230	<	UISRCS=prefs_editor_gtk.cpp
270	>	GUI_CFLAGS="$GTK_CFLAGS"
271	>	GUI_LIBS="$GTK_LIBS"
272	>	WANT_GTK=gtk
273		], [
274		AC_MSG_WARN([Could not find GTK+, disabling user interface.])
233	–	WANT_GTK=no
275		])
276		fi
277	+	if [[ "x$WANT_GTK" != "xno" -a "x$WANT_STANDALONE_GUI" = "xno" ]]; then
278	+	AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
279	+	UISRCS=prefs_editor_gtk.cpp
280	+	fi
281	+	AC_SUBST(GUI_CFLAGS)
282	+	AC_SUBST(GUI_LIBS)
283	+
284	+	dnl Build external GUI if requested.
285	+	if [[ "$WANT_STANDALONE_GUI" != "yes" ]]; then
286	+	WANT_STANDALONE_GUI=no
287	+	fi
288	+	if [[ "$WANT_GTK" = "no" ]]; then
289	+	WANT_STANDALONE_GUI=no
290	+	fi
291	+	AC_SUBST(STANDALONE_GUI, [$WANT_STANDALONE_GUI])
292
293		dnl We use ESD if possible.
294		if [[ "x$WANT_ESD" = "xyes" ]]; then
295	+	WANT_ESD=no
296		AM_PATH_ESD(0.2.8, [
297		AC_DEFINE(ENABLE_ESD, 1, [Define is using ESD.])
298		CFLAGS="$CFLAGS $ESD_CFLAGS"
299		CXXFLAGS="$CXXFLAGS $ESD_CFLAGS"
300		LIBS="$LIBS $ESD_LIBS"
301	+	WANT_ESD=yes
302		], [
303		AC_MSG_WARN([Could not find ESD, disabling ESD support.])
246	–	WANT_ESD=no
304		])
305		fi
306
#	Line 253 | Line 310 | AC_SYS_LARGEFILE
310		dnl Checks for header files.
311		AC_HEADER_STDC
312		AC_HEADER_SYS_WAIT
313	<	AC_CHECK_HEADERS(malloc.h)
313	>	AC_CHECK_HEADERS(malloc.h stdint.h)
314		AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h)
258	–	AC_CHECK_HEADERS(sys/time.h sys/times.h sys/socket.h)
315		AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h dirent.h)
316	<	AC_CHECK_HEADERS(linux/if.h, [], [], [
317	<	#if HAVE_SYS_SOCKET_H
318	<	# include <sys/socket.h>
316	>	AC_CHECK_HEADERS(sys/socket.h sys/ioctl.h sys/filio.h sys/bitypes.h sys/wait.h)
317	>	AC_CHECK_HEADERS(sys/time.h sys/poll.h sys/select.h arpa/inet.h)
318	>	AC_CHECK_HEADERS(linux/if.h linux/if_tun.h net/if.h net/if_tun.h, [], [], [
319	>	#ifdef HAVE_SYS_TYPES_H
320	>	#include <sys/types.h>
321	>	#endif
322	>	#ifdef HAVE_SYS_SOCKET_H
323	>	#include <sys/socket.h>
324		#endif
325		])
326	<	AC_CHECK_HEADERS(linux/if_tun.h net/if.h net/if_tun.h)
326	>	AC_CHECK_HEADERS(AvailabilityMacros.h)
327	>	AC_CHECK_HEADERS(IOKit/storage/IOBlockStorageDevice.h)
328		AC_CHECK_HEADERS(fenv.h)
329
330		dnl Checks for typedefs, structures, and compiler characteristics.
#	Line 283 | Line 345 | AC_TYPE_SIGNAL
345		AC_HEADER_TIME
346		AC_STRUCT_TM
347
348	+	dnl Check whether sys/socket.h defines type socklen_t.
349	+	dnl (extracted from ac-archive/Miscellaneous)
350	+	AC_CACHE_CHECK([for socklen_t],
351	+	ac_cv_type_socklen_t, [
352	+	AC_TRY_COMPILE([
353	+	#include <sys/types.h>
354	+	#include <sys/socket.h>
355	+	], [socklen_t len = 42; return 0;],
356	+	ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
357	+	dnl When cross-compiling, do not assume anything.
358	+	ac_cv_type_socklen_t="guessing no"
359	+	)
360	+	])
361	+	if [[ "x$ac_cv_type_socklen_t" != "xyes" ]]; then
362	+	AC_DEFINE(socklen_t, int, [Define to 'int' if <sys/types.h> doesn't define.])
363	+	fi
364	+
365		dnl Check whether struct sigaction has sa_restorer member.
366		AC_CACHE_CHECK([whether struct sigaction has sa_restorer],
367		ac_cv_signal_sa_restorer, [
#	Line 299 | Line 378 | if [[ "x$ac_cv_signal_sa_restorer" = "xy
378		fi
379
380		dnl Checks for library functions.
381	<	AC_CHECK_FUNCS(strdup strlcpy cfmakeraw)
381	>	AC_CHECK_FUNCS(strdup strerror strlcpy cfmakeraw)
382		AC_CHECK_FUNCS(nanosleep)
383		AC_CHECK_FUNCS(sigaction signal)
384		AC_CHECK_FUNCS(mmap mprotect munmap)
385		AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
307	–	AC_CHECK_FUNCS(posix_memalign memalign valloc)
386		AC_CHECK_FUNCS(exp2f log2f exp2 log2)
387	+	AC_CHECK_FUNCS(floorf roundf ceilf truncf floor round ceil trunc)
388	+	AC_CHECK_FUNCS(poll inet_aton)
389
390		dnl Darwin seems to define mach_task_self() instead of task_self().
391		AC_CHECK_FUNCS(mach_task_self task_self)
#	Line 317 | Line 397 | no:linux*)
397		;;
398		*:*)
399		AC_SEARCH_LIBS(clock_gettime, [rt posix4])
400	<	AC_CHECK_FUNCS(clock_gettime)
400	>	AC_CHECK_FUNCS(clock_gettime clock_nanosleep)
401		;;
402		esac
403
#	Line 365 | Line 445 | AC_CHECK_FILE([/dev/ptc],
445		)
446		dnl (end of code from openssh-3.2.2p1 configure.ac)
447
448	+	dnl Check for systems where POSIX-style non-blocking I/O (O_NONBLOCK)
449	+	dnl doesn't work or is unimplemented. On these systems (mostly older
450	+	dnl ones), use the old BSD-style FIONBIO approach instead. [tcl.m4]
451	+	AC_CACHE_CHECK([FIONBIO vs. O_NONBLOCK for non-blocking I/O],
452	+	ac_cv_nonblocking_io, [
453	+	case "$host" in
454	+	*-*-osf*)
455	+	ac_cv_nonblocking_io=FIONBIO
456	+	;;
457	+	*-*-sunos4*)
458	+	ac_cv_nonblocking_io=FIONBIO
459	+	;;
460	+	*-*-ultrix*)
461	+	ac_cv_nonblocking_io=FIONBIO
462	+	;;
463	+	*)
464	+	ac_cv_nonblocking_io=O_NONBLOCK
465	+	;;
466	+	esac
467	+	])
468	+	if [[ "$ac_cv_nonblocking_io" = "FIONBIO" ]]; then
469	+	AC_DEFINE(USE_FIONBIO, 1, [Define if BSD-style non-blocking I/O is to be used])
470	+	fi
471	+
472	+	dnl Check whether compiler supports byte bit-fields
473	+	AC_CACHE_CHECK([whether compiler supports byte bit-fields],
474	+	ac_cv_have_byte_bitfields, [
475	+	AC_LANG_SAVE
476	+	AC_LANG_CPLUSPLUS
477	+	AC_TRY_RUN([
478	+	struct A {
479	+	unsigned char b1:4;
480	+	unsigned char b2:4;
481	+	unsigned char c;
482	+	unsigned short s;
483	+	unsigned char a[4];
484	+	};
485	+
486	+	int main(void) {
487	+	A a;
488	+	return ! (sizeof(A) == 8 && &a.c == ((unsigned char *)&a + 1));
489	+	}],
490	+	[ac_cv_have_byte_bitfields=yes],
491	+	[ac_cv_have_byte_bitfields=no],
492	+	dnl When cross-compiling, assume only GCC supports this
493	+	[if [[ "$GCC" = "yes" ]]; then
494	+	ac_cv_have_byte_bitfields="guessing yes"
495	+	else
496	+	ac_cv_have_byte_bitfields="guessing no"
497	+	fi]
498	+	)
499	+	AC_LANG_RESTORE
500	+	])
501	+
502		dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES)
503	<	AC_DEFUN(AC_CHECK_FRAMEWORK, [
503	>	AC_DEFUN([AC_CHECK_FRAMEWORK], [
504		AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl
505		AC_CACHE_CHECK([whether compiler supports framework $1],
506		ac_Framework, [
507		saved_LIBS="$LIBS"
508		LIBS="$LIBS -framework $1"
509		AC_TRY_LINK(
510	<	[$2], [int main(void) { return 0; }],
510	>	[$2], [],
511		[AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"]
512		)
513		])
#	Line 386 | Line 520 | AC_DEFUN(AC_CHECK_FRAMEWORK, [
520		dnl Check for some MacOS X frameworks
521		AC_CHECK_FRAMEWORK(Carbon, [#include <Carbon/Carbon.h>])
522		AC_CHECK_FRAMEWORK(IOKit, [#include <IOKit/IOKitLib.h>])
523	+	AC_CHECK_FRAMEWORK(CoreFoundation, [#include <CoreFoundation/CoreFoundation.h>])
524
525		dnl Select system-dependant sources.
526		SERIALSRC=serial_unix.cpp
#	Line 396 | Line 531 | EXTFSSRC=extfs_unix.cpp
531		EXTRASYSSRCS=
532		case "$target_os" in
533		linux*)
534	<	ETHERSRC=Linux/ether_linux.cpp
534	>	ETHERSRC=ether_unix.cpp
535		AUDIOSRC=audio_oss_esd.cpp
536		SCSISRC=Linux/scsi_linux.cpp
537		if [[ "x$EMULATED_PPC" = "xno" ]]; then
538	<	EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
538	>	EXTRASYSSRCS="paranoia.cpp Linux/sheepthreads.c ppc_asm.S"
539	>	fi
540	>	;;
541	>	freebsd*)
542	>	ETHERSRC=ether_unix.cpp
543	>	;;
544	>	netbsd*)
545	>	ETHERSRC=ether_unix.cpp
546	>	if [[ "x$EMULATED_PPC" = "xno" ]]; then
547	>	EXTRASYSSRCS="paranoia.cpp NetBSD/sheepthreads.c ppc_asm.S"
548		fi
549		;;
550		darwin*)
551	+	ETHERSRC=ether_unix.cpp
552		if [[ "x$EMULATED_PPC" = "xno" ]]; then
553	<	EXTRASYSSRCS="Darwin/paranoia.cpp Linux/asm_linux.S"
553	>	EXTRASYSSRCS="paranoia.cpp ppc_asm.S"
554		fi
555	<	if [[ "x$ac_cv_framework_IOKit" = "xyes" ]]; then
555	>	if [[ "x$ac_cv_framework_IOKit" = "xyes" -a "x$ac_cv_framework_CoreFoundation" = "xyes" ]]; then
556		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/sys_darwin.cpp"
557		fi
558		if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
559		EXTFSSRC=../MacOSX/extfs_macosx.mm
560		fi
561		;;
562	<	cygwin*)
563	<	SERIALSRC="../dummy/serial_dummy.cpp"
562	>	irix*)
563	>	AUDIOSRC=Irix/audio_irix.cpp
564	>	LIBS="$LIBS -laudio"
565	>	WANT_ESD=no
566	>
567	>	dnl Check if our compiler supports -IPA (MIPSPro)
568	>	HAVE_IPA=no
569	>	ocflags="$CFLAGS"
570	>	CFLAGS=`echo " $CFLAGS -IPA" | sed -e "s/ -g //g"`
571	>	AC_MSG_CHECKING(if "-IPA" works)
572	>	dnl Do a test compile of an empty function
573	>	AC_TRY_COMPILE([#if defined __GNUC__
574	>	# error GCC does not support IPA yet
575	>	#endif],, [AC_MSG_RESULT(yes); HAVE_IPA=yes], AC_MSG_RESULT(no))
576	>	CFLAGS="$ocflags"
577		;;
578		esac
579
580	+	dnl Is the slirp library supported?
581	+	case "$ac_cv_have_byte_bitfields" in
582	+	yes|"guessing yes")
583	+	CAN_SLIRP=yes
584	+	ETHERSRC=ether_unix.cpp
585	+	;;
586	+	esac
587	+	if [[ -n "$CAN_SLIRP" ]]; then
588	+	AC_DEFINE(HAVE_SLIRP, 1, [Define if slirp library is supported])
589	+	SLIRP_SRCS="\
590	+	../slirp/bootp.c     ../slirp/ip_output.c  ../slirp/tcp_input.c  \
591	+	../slirp/cksum.c     ../slirp/mbuf.c       ../slirp/tcp_output.c \
592	+	../slirp/debug.c     ../slirp/misc.c       ../slirp/tcp_subr.c   \
593	+	../slirp/if.c        ../slirp/sbuf.c       ../slirp/tcp_timer.c  \
594	+	../slirp/ip_icmp.c   ../slirp/slirp.c      ../slirp/tftp.c       \
595	+	../slirp/ip_input.c  ../slirp/socket.c     ../slirp/udp.c"
596	+	fi
597	+	AC_SUBST(SLIRP_SRCS)
598	+
599		dnl SDL overrides
600		if [[ "x$WANT_SDL" = "xyes" ]]; then
601		AC_DEFINE(USE_SDL, 1, [Define to enble SDL support.])
#	Line 430 | Line 607 | if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; th
607		if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
608		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
609		else
610	<	case "$target_os" in
434	<	cygwin*)
435	<	EXTRASYSSRCS="$EXTRASYSSRCS ../Windows/clip_windows.cpp"
436	<	;;
437	<	*)
438	<	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
439	<	;;
440	<	esac
610	>	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
611		fi
612		else
613		VIDEOSRCS="video_x.cpp"
#	Line 456 | Line 626 | dnl to be put into the config.h file
626		dnl $1 -- the macro to define
627		dnl $2 -- the value to translate
628		dnl $3 -- template name
629	<	AC_DEFUN(AC_TRANSLATE_DEFINE, [
629	>	AC_DEFUN([AC_TRANSLATE_DEFINE], [
630		if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
631		AC_DEFINE($1, 1, $3)
632		fi
#	Line 865 | Line 1035 | fi
1035
1036		dnl Check addressing mode to use
1037		AC_MSG_CHECKING([for addressing mode to use])
868	–	case "$os_target" in
869	–	cygwin*)
870	–	WANT_ADDRESSING_MODE="direct,cygwin-hack"
871	–	NATMEM_OFFSET=
872	–	;;
873	–	esac
1038		if [[ "$EMULATED_PPC" != "yes" ]]; then
1039		if [[ "$WANT_ADDRESSING_MODE" != "real" ]]; then
1040		AC_MSG_WARN([Running in native PowerPC mode, force use of Real Addressing.])
#	Line 952 | Line 1116 | EOF
1116		fi
1117		AC_MSG_RESULT($WANT_ADDRESSING_MODE)
1118
1119	+	dnl Utility macro used by next two tests.
1120	+	dnl AC_EXAMINE_OBJECT(C source code,
1121	+	dnl     commands examining object file,
1122	+	dnl     [commands to run if compile failed]):
1123	+	dnl
1124	+	dnl Compile the source code to an object file; then convert it into a
1125	+	dnl printable representation.  All unprintable characters and
1126	+	dnl asterisks (*) are replaced by dots (.).  All white space is
1127	+	dnl deleted.  Newlines (ASCII 0x10) in the input are preserved in the
1128	+	dnl output, but runs of newlines are compressed to a single newline.
1129	+	dnl Finally, line breaks are forcibly inserted so that no line is
1130	+	dnl longer than 80 columns and the file ends with a newline.  The
1131	+	dnl result of all this processing is in the file conftest.dmp, which
1132	+	dnl may be examined by the commands in the second argument.
1133	+	dnl
1134	+	AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
1135	+	[AC_LANG_SAVE
1136	+	AC_LANG_C
1137	+	dnl Next bit cribbed from AC_TRY_COMPILE.
1138	+	cat > conftest.$ac_ext <<EOF
1139	+	[#line __oline__ "configure"
1140	+	#include "confdefs.h"
1141	+	$1
1142	+	]EOF
1143	+	if AC_TRY_EVAL(ac_compile); then
1144	+	od -c conftest.o |
1145	+	sed ['s/^[0-7]*[    ]*/ /
1146	+	s/\*/./g
1147	+	s/ \\n/*/g
1148	+	s/ [0-9][0-9][0-9]/./g
1149	+	s/  \\[^ ]/./g'] |
1150	+	tr -d '
1151	+	' | tr -s '*' '
1152	+	' | fold | sed '$a\
1153	+	' > conftest.dmp
1154	+	$2
1155	+	ifelse($3, , , else
1156	+	$3
1157	+	)dnl
1158	+	fi
1159	+	rm -rf conftest*
1160	+	AC_LANG_RESTORE])
1161	+
1162	+	dnl Floating point format probe.
1163	+	dnl The basic concept is the same as the above: grep the object
1164	+	dnl file for an interesting string.  We have to watch out for
1165	+	dnl rounding changing the values in the object, however; this is
1166	+	dnl handled by ignoring the least significant byte of the float.
1167	+	dnl
1168	+	dnl Does not know about VAX G-float or C4x idiosyncratic format.
1169	+	dnl It does know about PDP-10 idiosyncratic format, but this is
1170	+	dnl not presently supported by GCC.  S/390 "binary floating point"
1171	+	dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
1172	+	dnl as ASCII?)
1173	+	dnl
1174	+	AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
1175	+	[AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
1176	+	[gcc_AC_EXAMINE_OBJECT(
1177	+	[/* This will not work unless sizeof(double) == 8.  */
1178	+	extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
1179	+
1180	+	/* This structure must have no internal padding.  */
1181	+	struct possibility {
1182	+	char prefix[8];
1183	+	double candidate;
1184	+	char postfix[8];
1185	+	};
1186	+
1187	+	#define C(cand) { "\nformat:", cand, ":tamrof\n" }
1188	+	struct possibility table [] =
1189	+	{
1190	+	C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
1191	+	C( 3.53802595280598432000e+18), /* D__float - VAX */
1192	+	C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
1193	+	C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
1194	+	C(-5.22995989424860458374e+10)  /* IBMHEXFP - s/390 format, EBCDIC */
1195	+	};],
1196	+	[if   grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1197	+	ac_cv_c_float_format='IEEE (big-endian)'
1198	+	elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
1199	+	ac_cv_c_float_format='IEEE (big-endian)'
1200	+	elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
1201	+	ac_cv_c_float_format='IEEE (little-endian)'
1202	+	elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
1203	+	ac_cv_c_float_format='IEEE (little-endian)'
1204	+	elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
1205	+	ac_cv_c_float_format='VAX D-float'
1206	+	elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
1207	+	ac_cv_c_float_format='PDP-10'
1208	+	elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1209	+	ac_cv_c_float_format='IBM 370 hex'
1210	+	else
1211	+	AC_MSG_ERROR(Unknown floating point format)
1212	+	fi],
1213	+	[AC_MSG_ERROR(compile failed)])
1214	+	])
1215	+	# IEEE is the default format.  If the float endianness isn't the same
1216	+	# as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
1217	+	# (which is a tristate: yes, no, default).  This is only an issue with
1218	+	# IEEE; the other formats are only supported by a few machines each,
1219	+	# all with the same endianness.
1220	+	format=IEEE_FLOAT_FORMAT
1221	+	fbigend=
1222	+	case $ac_cv_c_float_format in
1223	+	'IEEE (big-endian)' )
1224	+	if test $ac_cv_c_bigendian = no; then
1225	+	fbigend=1
1226	+	fi
1227	+	;;
1228	+	'IEEE (little-endian)' )
1229	+	if test $ac_cv_c_bigendian = yes; then
1230	+	fbigend=0
1231	+	fi
1232	+	;;
1233	+	'VAX D-float' )
1234	+	format=VAX_FLOAT_FORMAT
1235	+	;;
1236	+	'PDP-10' )
1237	+	format=PDP10_FLOAT_FORMAT
1238	+	;;
1239	+	'IBM 370 hex' )
1240	+	format=IBM_FLOAT_FORMAT
1241	+	;;
1242	+	esac
1243	+	AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
1244	+	[Define to the floating point format of the host machine.])
1245	+	if test -n "$fbigend"; then
1246	+	AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
1247	+	[Define to 1 if the host machine stores floating point numbers in
1248	+	memory with the word containing the sign bit at the lowest address,
1249	+	or to 0 if it does it the other way around.
1250	+
1251	+	This macro should not be defined if the ordering is the same as for
1252	+	multi-word integers.])
1253	+	fi
1254	+	])
1255	+
1256	+	dnl Check for host float format
1257	+	gcc_AC_C_FLOAT_FORMAT
1258	+
1259		dnl Platform specific binary postprocessor
1260		AC_PATH_PROG(BLESS, "true")
1261		if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
#	Line 962 | Line 1266 | fi
1266		dnl Check for GCC 2.7 or higher.
1267		HAVE_GCC27=no
1268		AC_MSG_CHECKING(for GCC 2.7 or higher)
1269	<	AC_EGREP_CPP(xyes,
1270	<	[#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
1271	<	xyes
1272	<	#endif
1273	<	], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
1269	>	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5)
1270	>	# error gcc < 2.7
1271	>	typedef syntax error;
1272	>	#endif
1273	>	]])],
1274	>	[AC_MSG_RESULT(yes); HAVE_GCC27=yes],
1275	>	[AC_MSG_RESULT(no)])
1276
1277		dnl Check for GCC 3.0 or higher.
1278		HAVE_GCC30=no
1279		AC_MSG_CHECKING(for GCC 3.0 or higher)
1280	<	AC_EGREP_CPP(xyes,
1281	<	[#if __GNUC__ >= 3
1282	<	xyes
1283	<	#endif
1284	<	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
1280	>	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ >= 3)
1281	>	# error gcc < 3
1282	>	typedef syntax error;
1283	>	#endif
1284	>	]])],
1285	>	[AC_MSG_RESULT(yes); HAVE_GCC30=yes],
1286	>	[AC_MSG_RESULT(no)])
1287
1288		dnl Check for ICC.
1289		AC_MSG_CHECKING(for ICC)
#	Line 986 | Line 1294 | fi
1294		AC_MSG_RESULT($HAVE_ICC)
1295
1296		dnl Determine the generated object format
1297	<	AC_CACHE_CHECK([whether the compiler can generate ELF objects],
1297	>	AC_CACHE_CHECK([the format of compiler generated objects],
1298		ac_cv_object_format, [
1299		echo 'int i;' > conftest.$ac_ext
1300		ac_cv_object_format=no
#	Line 995 | Line 1303 | AC_CACHE_CHECK([whether the compiler can
1303		*"ELF"*)
1304		ac_cv_object_format=elf
1305		;;
1306	+	*"Mach-O"*)
1307	+	ac_cv_object_format=mach
1308	+	;;
1309		*)
1310		ac_cv_object_format=unknown
1311		;;
#	Line 1003 | Line 1314 | AC_CACHE_CHECK([whether the compiler can
1314		rm -rf conftest*
1315		])
1316
1317	+	dnl Add -fno-strict-aliasing for slirp sources
1318	+	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1319	+	SAVED_CFLAGS="$CFLAGS"
1320	+	CFLAGS="$CFLAGS -fno-strict-aliasing"
1321	+	AC_CACHE_CHECK([whether the compiler supports -fno-strict-aliasing],
1322	+	ac_cv_gcc_no_strict_aliasing, [
1323	+	AC_TRY_COMPILE([],[],
1324	+	[ac_cv_gcc_no_strict_aliasing=yes; AC_SUBST(SLIRP_CFLAGS, "-fno-strict-aliasing")],
1325	+	[ac_cv_gcc_no_strict_aliasing=no])
1326	+	])
1327	+	CFLAGS="$SAVED_CFLAGS"
1328	+	fi
1329	+
1330	+	dnl Add -mdynamic-no-pic for MacOS X (XXX icc10 will support MacOS X)
1331	+	if [[ "x$HAVE_GCC30" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1332	+	SAVED_CFLAGS="$CFLAGS"
1333	+	CFLAGS="$CFLAGS -mdynamic-no-pic"
1334	+	AC_CACHE_CHECK([whether the compiler supports -mdynamic-no-pic],
1335	+	ac_cv_gcc_mdynamic_no_pic, [
1336	+	AC_TRY_COMPILE([],[],[ac_cv_gcc_mdynamic_no_pic=yes],[ac_cv_gcc_mdynamic_no_pic=no])
1337	+	])
1338	+	if [[ "x$ac_cv_gcc_mdynamic_no_pic" = "xyes" ]]; then
1339	+	CXXFLAGS="$CXXFLAGS -mdynamic-no-pic"
1340	+	else
1341	+	CFLAGS="$SAVED_CFLAGS"
1342	+	fi
1343	+	fi
1344	+
1345		dnl CPU emulator sources
1346		if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1347		CPUSRCS="\
1348		../kpx_cpu/src/mathlib/ieeefp.cpp \
1349	+	../kpx_cpu/src/mathlib/mathlib.cpp \
1350		../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
1351		../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
1352		../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
1353	<	../kpx_cpu/src/cpu/ppc/ppc-translate.cpp"
1353	>	../kpx_cpu/src/cpu/ppc/ppc-translate.cpp \
1354	>	../kpx_cpu/src/utils/utils-cpuinfo.cpp"
1355		CPPFLAGS="$CPPFLAGS -I../kpx_cpu/include -I../kpx_cpu/src"
1356
1357		dnl Enable JIT compiler, if possible
#	Line 1027 | Line 1368 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1368		i?86:elf)
1369		ac_cv_use_dyngen=yes
1370		;;
1371	+	mips:elf)
1372	+	ac_cv_use_dyngen=yes
1373	+	;;
1374	+	powerpc:mach)
1375	+	ac_cv_use_dyngen=yes
1376	+	;;
1377	+	i?86:mach)
1378	+	ac_cv_use_dyngen=yes
1379	+	;;
1380		*:*)
1381		ac_cv_use_dyngen=no
1382		;;
#	Line 1036 | Line 1386 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1386		if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1387		DYNGEN_CC=$CXX
1388		else
1389	<	for p in /usr/bin /usr/local/bin; do
1389	>	for p in /usr/bin /usr/local/bin /usr/freeware/bin; do
1390		gxx="$p/g++"
1391		if [[ -x "$gxx" ]]; then
1392		DYNGEN_CC="$gxx"
#	Line 1044 | Line 1394 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1394		done
1395		fi
1396		fi
1397	<	if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include <limits>' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then
1397	>	if [[ -z "$DYNGEN_CC" ]]; then
1398		ac_cv_use_dyngen=no
1399		fi
1400		])
1401		if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
1402		case $host_cpu in
1403		i?86)
1404	<	DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
1055	<	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1056	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
1057	<	else
1058	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1059	<	fi
1060	<	saved_CPPFLAGS=$CPPFLAGS
1061	<	CPPFLAGS="$CPPFLAGS -mmmx"
1062	<	AC_CHECK_HEADERS(mmintrin.h,  [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -mmmx"])
1063	<	CPPFLAGS="$CPPFLAGS -msse"
1064	<	AC_CHECK_HEADERS(xmmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse"])
1065	<	CPPFLAGS="$CPPFLAGS -msse2"
1066	<	AC_CHECK_HEADERS(emmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse2"])
1067	<	CPPFLAGS=$saved_CPPFLAGS
1404	>	DYNGEN_OP_FLAGS="-fomit-frame-pointer"
1405		;;
1406	<	x86_64)
1407	<	AC_CHECK_HEADERS(mmintrin.h xmmintrin.h emmintrin.h)
1406	>	mips)
1407	>	DYNGEN_OP_FLAGS="-fno-delayed-branch -mno-abicalls"
1408		;;
1409	+	powerpc)
1410	+	if [[ "x$ac_cv_object_format" = "xmach" ]]; then
1411	+	DYNGEN_OP_FLAGS="-mdynamic-no-pic"
1412	+	fi
1413	+	;;
1414	+	esac
1415	+	have_dyngen_gcc3=no
1416	+	case "x`$DYNGEN_CC -dumpversion`" in
1417	+	x[12].*) ;;
1418	+	x*) have_dyngen_gcc3=yes ;;
1419		esac
1420	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000"
1421	<	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1420	>	if [[ "x$have_dyngen_gcc3" = "xyes" ]]; then
1421	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-align-functions"
1422	>	else
1423	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1424	>	fi
1425	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-functions -finline-limit=10000 -fno-exceptions -g0"
1426	>	if [[ "x$have_dyngen_gcc3" = "xyes" ]]; then
1427		DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
1428		fi
1429	+	if [[ "x$DYNGEN_CC" != "x$CXX" ]]; then
1430	+	DYNGEN_CFLAGS="-O2 $CFLAGS"
1431	+	DYNGEN_CXXFLAGS="-O2 $CXXFLAGS"
1432	+	else
1433	+	DYNGEN_CFLAGS="\$(CFLAGS)"
1434	+	DYNGEN_CXXFLAGS="\$(CXXFLAGS)"
1435	+	fi
1436		else
1437		WANT_JIT=no
1438		fi
#	Line 1085 | Line 1444 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1444		CPUSRCS="\
1445		../kpx_cpu/src/cpu/jit/jit-cache.cpp \
1446		../kpx_cpu/src/cpu/jit/basic-dyngen.cpp \
1447	<	../kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp $CPUSRCS"
1447	>	../kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp \
1448	>	../kpx_cpu/src/cpu/ppc/ppc-jit.cpp $CPUSRCS"
1449		fi
1450		fi
1451		CPUSRCS="$CPUSRCS ../kpx_cpu/sheepshaver_glue.cpp"
1452		else
1453		WANT_JIT=no
1454		fi
1095	–	if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
1096	–	AC_CACHE_CHECK([whether static data regions are executable],
1097	–	ac_cv_have_static_data_exec, [
1098	–	AC_TRY_RUN([int main(void) {
1099	–	#if defined(__powerpc__)
1100	–	static unsigned int p[8] = {0x4e800020,};
1101	–	asm volatile("dcbst 0,%0" : : "r" (p) : "memory");
1102	–	asm volatile("sync" : : : "memory");
1103	–	asm volatile("icbi 0,%0" : : "r" (p) : "memory");
1104	–	asm volatile("sync" : : : "memory");
1105	–	asm volatile("isync" : : : "memory");
1106	–	((void (*)(void))p)();
1107	–	return 0;
1108	–	#endif
1109	–	return 1;
1110	–	}], ac_cv_have_static_data_exec=yes, ac_cv_have_static_data_exec=no,
1111	–	dnl When cross-compiling, do not assume anything.
1112	–	ac_cv_have_static_data_exec=no
1113	–	)
1114	–	])
1115	–	else
1116	–	ac_cv_use_dyngen=no
1117	–	fi
1118	–	AC_TRANSLATE_DEFINE(HAVE_STATIC_DATA_EXEC, "$ac_cv_have_static_data_exec",
1119	–	[Define if your system marks static data pages as executable.])
1120	–
1455		if [[ "x$WANT_JIT" = "xyes" ]]; then
1456		CPPFLAGS="$CPPFLAGS -DUSE_JIT"
1457		fi
1458
1459	+	dnl Higher level optimizations with MIPSPro compilers are possible
1460	+	if [[ "x$HAVE_IPA" = "xyes" ]]; then
1461	+	CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1462	+	CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1463	+	CXXFLAGS="-LANG:std $CXXFLAGS"
1464	+	LDFLAGS="$LDFLAGS -O3 -OPT:Olimit=0 -IPA"
1465	+	fi
1466	+
1467	+	dnl Check for linker script support
1468	+	case $target_os:$target_cpu in
1469	+	linux*:i?86)    LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";;
1470	+	linux*:x86_64)  LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-x86_64.ld";;
1471	+	linux*:powerpc) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-ppc.ld";;
1472	+	netbsd*:i?86)   LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";;
1473	+	freebsd*:i?86)  LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/freebsd-i386.ld";;
1474	+	darwin*:*)      LINKER_SCRIPT_FLAGS="-Wl,-seg1addr,0x78048000";;
1475	+	esac
1476	+	if [[ -n "$LINKER_SCRIPT_FLAGS" ]]; then
1477	+	AC_CACHE_CHECK([whether linker script is usable],
1478	+	ac_cv_linker_script_works, [
1479	+	AC_LANG_SAVE
1480	+	AC_LANG_CPLUSPLUS
1481	+	saved_LDFLAGS="$LDFLAGS"
1482	+	LDFLAGS="$LDFLAGS $LINKER_SCRIPT_FLAGS"
1483	+	AC_TRY_RUN(
1484	+	[int main() {if ((char *)&main < (char *)0x70000000) return 1;}],
1485	+	[ac_cv_linker_script_works=yes],
1486	+	[ac_cv_linker_script_works=no],
1487	+	dnl When cross-compiling, assume it works
1488	+	[ac_cv_linker_script_works="guessing yes"]
1489	+	)
1490	+	AC_LANG_RESTORE
1491	+	if [[ "$ac_cv_linker_script_works" = "no" ]]; then
1492	+	LDFLAGS="$saved_LDFLAGS"
1493	+	LINKER_SCRIPT_FLAGS=""
1494	+	fi
1495	+	])
1496	+	fi
1497	+	AC_TRANSLATE_DEFINE(HAVE_LINKER_SCRIPT, "$ac_cv_linker_script_works",
1498	+	[Define if there is a linker script to relocate the executable above 0x70000000.])
1499	+
1500		dnl Generate Makefile.
1501	+	AC_SUBST(PERL)
1502		AC_SUBST(USE_DYNGEN, [$ac_cv_use_dyngen])
1503		AC_SUBST(DYNGENSRCS)
1504		AC_SUBST(DYNGEN_CC)
1505	+	AC_SUBST(DYNGEN_CFLAGS)
1506	+	AC_SUBST(DYNGEN_CXXFLAGS)
1507		AC_SUBST(DYNGEN_OP_FLAGS)
1508		AC_SUBST(SYSSRCS)
1509		AC_SUBST(CPUSRCS)
#	Line 1141 | Line 1519 | echo
1519		echo SheepShaver configuration summary:
1520		echo
1521		echo SDL support ...................... : $SDL_SUPPORT
1522	+	echo FBDev DGA support ................ : $WANT_FBDEV_DGA
1523		echo XFree86 DGA support .............. : $WANT_XF86_DGA
1524		echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
1525		echo Using PowerPC emulator ........... : $EMULATED_PPC

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