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

Comparing SheepShaver/src/Unix/configure.ac (file contents):
Revision 1.27 by gbeauche, 2005-06-22T15:37:25Z vs.
Revision 1.70 by asvitkine, 2010-12-28T02:36:09Z

#	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)
8	+	AH_TOP(
9	+	#ifndef CONFIG_H
10	+	#define CONFIG_H
11	+	)
12	+	AH_BOTTOM(
13	+	#endif /* CONFIG_H */
14	+	)
15
16		dnl Canonical system information.
17		AC_CANONICAL_HOST
#	Line 14 | Line 21 | dnl Some systems do not put corefiles in
21		dnl cores for the configure tests since some are intended to dump core.
22		ulimit -c 0
23
24	+	dnl Invite Cygwin users to build within the Windows/ directory
25	+	case $target_os in
26	+	*cygwin* | *mingw32*)
27	+	AC_MSG_ERROR([You can only build the Windows version from its directory, Cygwin/X11 is not supported.])
28	+	;;
29	+	esac
30	+
31		dnl Options.
32		AC_ARG_ENABLE(jit,          [  --enable-jit            enable JIT compiler [default=yes]], [WANT_JIT=$enableval], [WANT_JIT=yes])
33		AC_ARG_ENABLE(ppc-emulator, [  --enable-ppc-emulator   use the selected PowerPC emulator [default=auto]], [WANT_EMULATED_PPC=$enableval], [WANT_EMULATED_PPC=auto])
#	Line 21 | Line 35 | AC_ARG_ENABLE(fbdev-dga,    [  --enable-
35		AC_ARG_ENABLE(xf86-dga,     [  --enable-xf86-dga       use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
36		AC_ARG_ENABLE(xf86-vidmode, [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
37		AC_ARG_ENABLE(vosf,         [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
38	+	AC_ARG_ENABLE(standalone-gui,[  --enable-standalone-gui enable a standalone GUI prefs editor [default=no]], [WANT_STANDALONE_GUI=$enableval], [WANT_STANDALONE_GUI=no])
39		AC_ARG_WITH(esd,            [  --with-esd              support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
40		AC_ARG_WITH(gtk,            [  --with-gtk              use GTK user interface [default=yes]],
41		[case "$withval" in
#	Line 33 | Line 48 | AC_ARG_WITH(gtk,            [  --with-gt
48		AC_ARG_WITH(mon,            [  --with-mon              use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
49		AC_ARG_WITH(dgcc,           [  --with-dgcc=COMPILER    use C++ COMPILER to compile synthetic opcodes], [DYNGEN_CC=$withval])
50
51	+	AC_ARG_WITH(bincue,
52	+	AS_HELP_STRING([--with-bincue], [Allow cdrom image files in bin/cue mode]))
53	+
54	+	AC_ARG_WITH(libvhd,
55	+	AS_HELP_STRING([--with-libvhd], [Enable VHD disk images]))
56	+
57	+
58		dnl Addressing mode
59		AC_ARG_ENABLE(addressing,
60		[  --enable-addressing=AM  set the addressing mode to use [default=real]],
#	Line 48 | Line 70 | dnl SDL options.
70		AC_ARG_ENABLE(sdl-static,   [  --enable-sdl-static     use SDL static libraries for linking [default=no]], [WANT_SDL_STATIC=$enableval], [WANT_SDL_STATIC=no])
71		AC_ARG_ENABLE(sdl-video,    [  --enable-sdl-video      use SDL for video graphics [default=no]], [WANT_SDL_VIDEO=$enableval], [WANT_SDL_VIDEO=no])
72		AC_ARG_ENABLE(sdl-audio,    [  --enable-sdl-audio      use SDL for audio [default=no]], [WANT_SDL_AUDIO=$enableval], [WANT_SDL_AUDIO=no])
73	+	AC_ARG_ENABLE(sdl-framework,    [  --enable-sdl-framework  use SDL framework [default=no]], [WANT_SDL_FRAMEWORK=$enableval], [WANT_SDL_FRAMEWORK=no])
74	+	AC_ARG_ENABLE(sdl-framework-prefix,    [  --enable-sdl-framework-prefix=PFX    default=/Library/Frameworks], [SDL_FRAMEWORK="$enableval"], [SDL_FRAMEWORK=/Library/Frameworks])
75
76		dnl Checks for programs.
77		AC_PROG_CC
#	Line 98 | Line 122 | if [[ "x$WANT_MON" = "xyes" ]]; then
122		if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
123		AC_MSG_RESULT(yes)
124		AC_DEFINE(ENABLE_MON, 1, [Define if using "mon".])
125	<	MONSRCS="$mon_srcdir/mon.cpp $mon_srcdir/mon_6502.cpp $mon_srcdir/mon_z80.cpp $mon_srcdir/mon_cmd.cpp $mon_srcdir/mon_lowmem.cpp $mon_srcdir/mon_disass.cpp $mon_srcdir/mon_ppc.cpp $mon_srcdir/disass/floatformat.c $mon_srcdir/disass/i386-dis.c $mon_srcdir/disass/m68k-dis.c $mon_srcdir/disass/m68k-opc.c"
125	>	MONSRCS="$mon_srcdir/mon.cpp $mon_srcdir/mon_6502.cpp $mon_srcdir/mon_z80.cpp $mon_srcdir/mon_cmd.cpp $mon_srcdir/mon_lowmem.cpp $mon_srcdir/mon_disass.cpp $mon_srcdir/mon_ppc.cpp $mon_srcdir/disass/floatformat.c $mon_srcdir/disass/i386-dis.c $mon_srcdir/disass/m68k-dis.c $mon_srcdir/disass/m68k-opc.c $mon_srcdir/disass/mips-dis.c $mon_srcdir/disass/mips-opc.c $mon_srcdir/disass/mips16-opc.c"
126		CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
127		AC_CHECK_LIB(ncurses, tgetent, ,
128	<	AC_CHECK_LIB(termcap, tgetent, ,
129	<	AC_CHECK_LIB(termlib, tgetent, ,
130	<	AC_CHECK_LIB(terminfo, tgetent, ,
131	<	AC_CHECK_LIB(Hcurses, tgetent, ,
132	<	AC_CHECK_LIB(curses, tgetent))))))
128	>	[AC_CHECK_LIB(termcap, tgetent, ,
129	>	[AC_CHECK_LIB(termlib, tgetent, ,
130	>	[AC_CHECK_LIB(terminfo, tgetent, ,
131	>	[AC_CHECK_LIB(Hcurses, tgetent, ,
132	>	[AC_CHECK_LIB(curses, tgetent)])])])])])
133		AC_CHECK_LIB(readline, readline)
134		AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
135		else
#	Line 118 | Line 142 | AC_SUBST(MONSRCS)
142
143		dnl Checks for libraries.
144		AC_CHECK_LIB(posix4, sem_init)
145	+	AC_CHECK_LIB(m, cos)
146	+
147	+	dnl AC_CHECK_SDLFRAMEWORK($1=NAME, $2=INCLUDES)
148	+	dnl AC_TRY_LINK uses main() but SDL needs main to take args,
149	+	dnl therefore main is undefined with #undef.
150	+	dnl Framework can be in an custom location.
151	+	AC_DEFUN([AC_CHECK_SDLFRAMEWORK], [
152	+	AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])
153	+	AC_CACHE_CHECK([whether compiler supports framework $1],
154	+	ac_Framework, [
155	+	saved_LIBS="$LIBS"
156	+	LIBS="$LIBS -framework $1"
157	+	if [[ "x$SDL_FRAMEWORK" != "x/Library/Frameworks" ]]; then
158	+	if [[ "x$SDL_FRAMEWORK" != "x/System/Library/Frameworks" ]]; then
159	+	LIBS="$saved_LIBS -F$SDL_FRAMEWORK -framework $1"
160	+	fi
161	+	fi
162	+	saved_CPPFLAGS="$CPPFLAGS"
163	+	CPPFLAGS="$CPPFLAGS -I$SDL_FRAMEWORK/SDL.framework/Headers"
164	+	AC_TRY_LINK(
165	+	[$2
166	+	#undef main], [],
167	+	[AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no);
168	+	LIBS="$saved_LIBS"; CPPFLAGS="$saved_CPPFLAGS"]
169	+	)
170	+	])
171	+	AS_IF([test AS_VAR_GET(ac_Framework) = yes],
172	+	[AC_DEFINE(AS_TR_CPP(HAVE_FRAMEWORK_$1), 1, [Define if framework $1 is available.])]
173	+	)
174	+	AS_VAR_POPDEF([ac_Framework])
175	+	])
176
177		dnl Do we need SDL?
178		WANT_SDL=no
#	Line 133 | Line 188 | if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; th
188		SDL_SUPPORT="$SDL_SUPPORT audio"
189		fi
190		if [[ "x$WANT_SDL" = "xyes" ]]; then
191	<	AC_PATH_PROG(sdl_config, "sdl-config")
192	<	if [[ -n "$sdl_config" ]]; then
193	<	case $target_os in
194	<	# Special treatment for Cygwin so that we can still use the POSIX layer
195	<	*cygwin*)
196	<	sdl_cflags="-I`$sdl_config --prefix`/include/SDL"
197	<	sdl_libs="-L`$sdl_config --exec-prefix`/lib -lSDL"
198	<	;;
144	<	*)
191	>	if [[ "x$WANT_SDL_FRAMEWORK" = "xyes" ]]; then
192	>	AC_CHECK_SDLFRAMEWORK(SDL, [#include <SDL.h>])
193	>	else
194	>	ac_cv_framework_SDL=no
195	>	fi
196	>	if [[ "x$ac_cv_framework_SDL" = "xno" ]]; then
197	>	AC_PATH_PROG(sdl_config, "sdl-config")
198	>	if [[ -n "$sdl_config" ]]; then
199		sdl_cflags=`$sdl_config --cflags`
200		if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
201		sdl_libs=`$sdl_config --static-libs`
202		else
203		sdl_libs=`$sdl_config --libs`
204		fi
205	<	;;
206	<	esac
207	<	CFLAGS="$CFLAGS $sdl_cflags"
208	<	CXXFLAGS="$CXXFLAGS $sdl_cflags"
209	<	LIBS="$LIBS $sdl_libs"
210	<	else
211	<	WANT_SDL=no
212	<	WANT_SDL_VIDEO=no
159	<	WANT_SDL_AUDIO=no
205	>	CFLAGS="$CFLAGS $sdl_cflags"
206	>	CXXFLAGS="$CXXFLAGS $sdl_cflags"
207	>	LIBS="$LIBS $sdl_libs"
208	>	else
209	>	WANT_SDL=no
210	>	WANT_SDL_VIDEO=no
211	>	WANT_SDL_AUDIO=no
212	>	fi
213		fi
214		SDL_SUPPORT=`echo "$SDL_SUPPORT" | sed -e "s/^ //"`
215		else
#	Line 174 | Line 227 | if [[ "x$WANT_SDL_VIDEO" != "xyes" ]]; t
227		LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS"
228		fi
229
230	+
231	+
232		dnl We need pthreads on non-PowerPC systems. Try libpthread first, then libc_r (FreeBSD), then PTL.
233		HAVE_PTHREADS=yes
234		case $EMULATED_PPC:$target_os in
#	Line 185 | Line 240 | no:linux*|no:netbsd*)
240		AC_CHECK_LIB(pthread, pthread_create, , [
241		AC_CHECK_LIB(c_r, pthread_create, , [
242		AC_CHECK_LIB(PTL, pthread_create, , [
243	<	AC_MSG_ERROR([You need pthreads to run Basilisk II.])
243	>	dnl XXX remove when no pthreads case is merged
244	>	AC_MSG_ERROR([You need pthreads to run SheepShaver.])
245	>	HAVE_PTHREADS=no
246		])
247		])
248		])
249		AC_CHECK_FUNCS(pthread_cancel)
250	+	AC_CHECK_FUNCS(pthread_cond_init pthread_testcancel)
251		AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
252		AC_CHECK_FUNCS(pthread_mutexattr_settype)
253		AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
196	–	if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
197	–	AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
198	–	fi
254		dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
255		SEMSRC=
256		AC_CHECK_FUNCS(sem_init, , [
#	Line 205 | Line 260 | no:linux*|no:netbsd*)
260		])
261		;;
262		esac
263	+	if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
264	+	AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
265	+	fi
266
267		dnl We use FBDev DGA if possible.
268		if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
#	Line 242 | Line 300 | dnl We use GTK+ if possible.
300		UISRCS=../dummy/prefs_editor_dummy.cpp
301		case "x$WANT_GTK" in
302		xgtk2*)
303	+	WANT_GTK=no
304		AM_PATH_GTK_2_0(1.3.15, [
305	<	AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
306	<	CFLAGS="$CFLAGS $GTK_CFLAGS"
248	<	CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
249	<	LIBS="$LIBS $GTK_LIBS"
250	<	UISRCS=prefs_editor_gtk.cpp
305	>	GUI_CFLAGS="$GTK_CFLAGS"
306	>	GUI_LIBS="$GTK_LIBS"
307		WANT_GTK=gtk2
308		], [
309		case "x${WANT_GTK}x" in
#	Line 258 | Line 314 | xgtk2*)
314		*)
315		AC_MSG_WARN([Could not find GTK+, disabling user interface.])
316		WANT_GTK=no
317	<	;;
317	>	;;
318		esac
319		])
320		;;
321		esac
322		if [[ "x$WANT_GTK" = "xgtk" ]]; then
323	+	WANT_GTK=no
324		AM_PATH_GTK(1.2.0, [
325	<	AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
326	<	CFLAGS="$CFLAGS $GTK_CFLAGS"
327	<	CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
271	<	LIBS="$LIBS $GTK_LIBS"
272	<	UISRCS=prefs_editor_gtk.cpp
325	>	GUI_CFLAGS="$GTK_CFLAGS"
326	>	GUI_LIBS="$GTK_LIBS"
327	>	WANT_GTK=gtk
328		], [
329		AC_MSG_WARN([Could not find GTK+, disabling user interface.])
275	–	WANT_GTK=no
330		])
331		fi
332	+	if [[ "x$WANT_GTK" != "xno" -a "x$WANT_STANDALONE_GUI" = "xno" ]]; then
333	+	AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
334	+	UISRCS=prefs_editor_gtk.cpp
335	+	fi
336	+	AC_SUBST(GUI_CFLAGS)
337	+	AC_SUBST(GUI_LIBS)
338	+
339	+	dnl Build external GUI if requested.
340	+	if [[ "$WANT_STANDALONE_GUI" != "yes" ]]; then
341	+	WANT_STANDALONE_GUI=no
342	+	fi
343	+	if [[ "$WANT_GTK" = "no" ]]; then
344	+	WANT_STANDALONE_GUI=no
345	+	fi
346	+	AC_SUBST(STANDALONE_GUI, [$WANT_STANDALONE_GUI])
347
348		dnl We use ESD if possible.
349		if [[ "x$WANT_ESD" = "xyes" ]]; then
350	+	WANT_ESD=no
351		AM_PATH_ESD(0.2.8, [
352		AC_DEFINE(ENABLE_ESD, 1, [Define is using ESD.])
353		CFLAGS="$CFLAGS $ESD_CFLAGS"
354		CXXFLAGS="$CXXFLAGS $ESD_CFLAGS"
355		LIBS="$LIBS $ESD_LIBS"
356	+	WANT_ESD=yes
357		], [
358		AC_MSG_WARN([Could not find ESD, disabling ESD support.])
288	–	WANT_ESD=no
359		])
360		fi
361
#	Line 295 | Line 365 | AC_SYS_LARGEFILE
365		dnl Checks for header files.
366		AC_HEADER_STDC
367		AC_HEADER_SYS_WAIT
368	<	AC_CHECK_HEADERS(malloc.h)
368	>	AC_CHECK_HEADERS(malloc.h stdint.h)
369		AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h)
300	–	AC_CHECK_HEADERS(sys/time.h sys/times.h sys/socket.h)
370		AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h dirent.h)
371	<	AC_CHECK_HEADERS(linux/if.h, [], [], [
372	<	#if HAVE_SYS_SOCKET_H
373	<	# include <sys/socket.h>
371	>	AC_CHECK_HEADERS(sys/socket.h sys/ioctl.h sys/filio.h sys/bitypes.h sys/wait.h)
372	>	AC_CHECK_HEADERS(sys/time.h sys/poll.h sys/select.h arpa/inet.h)
373	>	AC_CHECK_HEADERS(linux/if.h linux/if_tun.h net/if.h net/if_tun.h, [], [], [
374	>	#ifdef HAVE_SYS_TYPES_H
375	>	#include <sys/types.h>
376	>	#endif
377	>	#ifdef HAVE_SYS_SOCKET_H
378	>	#include <sys/socket.h>
379		#endif
380		])
381	<	AC_CHECK_HEADERS(linux/if_tun.h net/if.h net/if_tun.h)
381	>	AC_CHECK_HEADERS(AvailabilityMacros.h)
382	>	AC_CHECK_HEADERS(IOKit/storage/IOBlockStorageDevice.h)
383		AC_CHECK_HEADERS(fenv.h)
384
385		dnl Checks for typedefs, structures, and compiler characteristics.
#	Line 325 | Line 400 | AC_TYPE_SIGNAL
400		AC_HEADER_TIME
401		AC_STRUCT_TM
402
403	+	dnl Check whether sys/socket.h defines type socklen_t.
404	+	dnl (extracted from ac-archive/Miscellaneous)
405	+	AC_CACHE_CHECK([for socklen_t],
406	+	ac_cv_type_socklen_t, [
407	+	AC_TRY_COMPILE([
408	+	#include <sys/types.h>
409	+	#include <sys/socket.h>
410	+	], [socklen_t len = 42; return 0;],
411	+	ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
412	+	dnl When cross-compiling, do not assume anything.
413	+	ac_cv_type_socklen_t="guessing no"
414	+	)
415	+	])
416	+	if [[ "x$ac_cv_type_socklen_t" != "xyes" ]]; then
417	+	AC_DEFINE(socklen_t, int, [Define to 'int' if <sys/types.h> doesn't define.])
418	+	fi
419	+
420		dnl Check whether struct sigaction has sa_restorer member.
421		AC_CACHE_CHECK([whether struct sigaction has sa_restorer],
422		ac_cv_signal_sa_restorer, [
#	Line 341 | Line 433 | if [[ "x$ac_cv_signal_sa_restorer" = "xy
433		fi
434
435		dnl Checks for library functions.
436	<	AC_CHECK_FUNCS(strdup strlcpy cfmakeraw)
436	>	AC_CHECK_FUNCS(strdup strerror strlcpy cfmakeraw)
437		AC_CHECK_FUNCS(nanosleep)
438		AC_CHECK_FUNCS(sigaction signal)
439		AC_CHECK_FUNCS(mmap mprotect munmap)
440		AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
349	–	AC_CHECK_FUNCS(posix_memalign memalign valloc)
441		AC_CHECK_FUNCS(exp2f log2f exp2 log2)
442		AC_CHECK_FUNCS(floorf roundf ceilf truncf floor round ceil trunc)
443	+	AC_CHECK_FUNCS(poll inet_aton)
444
445		dnl Darwin seems to define mach_task_self() instead of task_self().
446		AC_CHECK_FUNCS(mach_task_self task_self)
#	Line 388 | Line 480 | mips-sony-bsd|mips-sony-newsos4)
480		*-*-cygwin*)
481		no_dev_ptmx=1
482		;;
483	+	*-*-darwin*)
484	+	no_dev_ptmx=1
485	+	;;
486		esac
487
488		if test -z "$no_dev_ptmx" ; then
#	Line 408 | Line 503 | AC_CHECK_FILE([/dev/ptc],
503		)
504		dnl (end of code from openssh-3.2.2p1 configure.ac)
505
506	+	dnl Check for systems where POSIX-style non-blocking I/O (O_NONBLOCK)
507	+	dnl doesn't work or is unimplemented. On these systems (mostly older
508	+	dnl ones), use the old BSD-style FIONBIO approach instead. [tcl.m4]
509	+	AC_CACHE_CHECK([FIONBIO vs. O_NONBLOCK for non-blocking I/O],
510	+	ac_cv_nonblocking_io, [
511	+	case "$host" in
512	+	*-*-osf*)
513	+	ac_cv_nonblocking_io=FIONBIO
514	+	;;
515	+	*-*-sunos4*)
516	+	ac_cv_nonblocking_io=FIONBIO
517	+	;;
518	+	*-*-ultrix*)
519	+	ac_cv_nonblocking_io=FIONBIO
520	+	;;
521	+	*)
522	+	ac_cv_nonblocking_io=O_NONBLOCK
523	+	;;
524	+	esac
525	+	])
526	+	if [[ "$ac_cv_nonblocking_io" = "FIONBIO" ]]; then
527	+	AC_DEFINE(USE_FIONBIO, 1, [Define if BSD-style non-blocking I/O is to be used])
528	+	fi
529	+
530	+	dnl Check whether compiler supports byte bit-fields
531	+	AC_CACHE_CHECK([whether compiler supports byte bit-fields],
532	+	ac_cv_have_byte_bitfields, [
533	+	AC_LANG_SAVE
534	+	AC_LANG_CPLUSPLUS
535	+	AC_TRY_RUN([
536	+	struct A {
537	+	unsigned char b1:4;
538	+	unsigned char b2:4;
539	+	unsigned char c;
540	+	unsigned short s;
541	+	unsigned char a[4];
542	+	};
543	+
544	+	int main(void) {
545	+	A a;
546	+	return ! (sizeof(A) == 8 && &a.c == ((unsigned char *)&a + 1));
547	+	}],
548	+	[ac_cv_have_byte_bitfields=yes],
549	+	[ac_cv_have_byte_bitfields=no],
550	+	dnl When cross-compiling, assume only GCC supports this
551	+	[if [[ "$GCC" = "yes" ]]; then
552	+	ac_cv_have_byte_bitfields="guessing yes"
553	+	else
554	+	ac_cv_have_byte_bitfields="guessing no"
555	+	fi]
556	+	)
557	+	AC_LANG_RESTORE
558	+	])
559	+
560		dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES)
561	<	AC_DEFUN(AC_CHECK_FRAMEWORK, [
561	>	AC_DEFUN([AC_CHECK_FRAMEWORK], [
562		AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl
563		AC_CACHE_CHECK([whether compiler supports framework $1],
564		ac_Framework, [
565		saved_LIBS="$LIBS"
566		LIBS="$LIBS -framework $1"
567		AC_TRY_LINK(
568	<	[$2], [int main(void) { return 0; }],
568	>	[$2], [],
569		[AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"]
570		)
571		])
#	Line 429 | Line 578 | AC_DEFUN(AC_CHECK_FRAMEWORK, [
578		dnl Check for some MacOS X frameworks
579		AC_CHECK_FRAMEWORK(Carbon, [#include <Carbon/Carbon.h>])
580		AC_CHECK_FRAMEWORK(IOKit, [#include <IOKit/IOKitLib.h>])
581	+	AC_CHECK_FRAMEWORK(CoreFoundation, [#include <CoreFoundation/CoreFoundation.h>])
582	+	AC_CHECK_FRAMEWORK(CoreAudio, [#include <CoreAudio/CoreAudio.h>])
583	+	AC_CHECK_FRAMEWORK(AudioUnit, [#include <AudioUnit/AudioUnit.h>])
584	+	AC_CHECK_FRAMEWORK(AudioToolbox, [#include <AudioToolbox/AudioToolbox.h>])
585	+	AC_CHECK_FRAMEWORK(AppKit, [])
586
587		dnl Select system-dependant sources.
588		SERIALSRC=serial_unix.cpp
589		ETHERSRC=../dummy/ether_dummy.cpp
590		SCSISRC=../dummy/scsi_dummy.cpp
591		AUDIOSRC=../dummy/audio_dummy.cpp
592	+	PREFSSRC=../dummy/prefs_dummy.cpp
593		EXTFSSRC=extfs_unix.cpp
594		EXTRASYSSRCS=
595		case "$target_os" in
596		linux*)
597	<	ETHERSRC=Linux/ether_linux.cpp
597	>	ETHERSRC=ether_unix.cpp
598		AUDIOSRC=audio_oss_esd.cpp
599		SCSISRC=Linux/scsi_linux.cpp
600		if [[ "x$EMULATED_PPC" = "xno" ]]; then
601	<	EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c ppc_asm.S"
601	>	EXTRASYSSRCS="paranoia.cpp Linux/sheepthreads.c ppc_asm.S"
602		fi
603		;;
604	+	freebsd*)
605	+	ETHERSRC=ether_unix.cpp
606	+	;;
607		netbsd*)
608	+	ETHERSRC=ether_unix.cpp
609		if [[ "x$EMULATED_PPC" = "xno" ]]; then
610	<	EXTRASYSSRCS="NetBSD/paranoia.cpp NetBSD/sheepthreads.c ppc_asm.S"
610	>	EXTRASYSSRCS="paranoia.cpp NetBSD/sheepthreads.c ppc_asm.S"
611		fi
612		;;
613		darwin*)
614	+	ETHERSRC=ether_unix.cpp
615		if [[ "x$EMULATED_PPC" = "xno" ]]; then
616	<	EXTRASYSSRCS="Darwin/paranoia.cpp ppc_asm.S"
616	>	EXTRASYSSRCS="paranoia.cpp ppc_asm.S"
617		fi
618	<	if [[ "x$ac_cv_framework_IOKit" = "xyes" ]]; then
618	>	if [[ "x$ac_cv_framework_IOKit" = "xyes" -a "x$ac_cv_framework_CoreFoundation" = "xyes" ]]; then
619		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/sys_darwin.cpp"
620		fi
621		if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
622	<	EXTFSSRC=../MacOSX/extfs_macosx.mm
622	>	EXTFSSRC=../MacOSX/extfs_macosx.cpp
623	>	if [[ "x$ac_cv_framework_AppKit" = "xyes" -a "x$WANT_GTK" = "xno" ]]; then
624	>	PREFSSRC="../MacOSX/prefs_macosx.mm ../MacOSX/Launcher/VMSettingsController.mm"
625	>	CPPFLAGS="$CPPFLAGS -I../MacOSX/Launcher"
626	>	fi
627	>	fi
628	>	if [[ "x$WANT_ESD" = "xno" -a "x$ac_cv_framework_CoreAudio" = "xyes" -a "x$WANT_SDL_AUDIO" = "xno" ]]; then
629	>	AUDIOSRC="../MacOSX/audio_macosx.cpp ../MacOSX/AudioBackEnd.cpp ../MacOSX/AudioDevice.cpp ../MacOSX/MacOSX_sound_if.cpp"
630	>	OSX_CORE_AUDIO="-DOSX_CORE_AUDIO"
631		fi
632		;;
633	<	cygwin*)
634	<	SERIALSRC="../dummy/serial_dummy.cpp"
633	>	irix*)
634	>	AUDIOSRC=Irix/audio_irix.cpp
635	>	LIBS="$LIBS -laudio"
636	>	WANT_ESD=no
637	>
638	>	dnl Check if our compiler supports -IPA (MIPSPro)
639	>	HAVE_IPA=no
640	>	ocflags="$CFLAGS"
641	>	CFLAGS=`echo " $CFLAGS -IPA" | sed -e "s/ -g //g"`
642	>	AC_MSG_CHECKING(if "-IPA" works)
643	>	dnl Do a test compile of an empty function
644	>	AC_TRY_COMPILE([#if defined __GNUC__
645	>	# error GCC does not support IPA yet
646	>	#endif],, [AC_MSG_RESULT(yes); HAVE_IPA=yes], AC_MSG_RESULT(no))
647	>	CFLAGS="$ocflags"
648	>	;;
649	>	esac
650	>
651	>	dnl BINCUE
652	>	AS_IF([test  "x$with_bincue" = "xyes" ], [have_bincue=yes], [have_bincue=no])
653	>	AS_IF([test  "x$have_bincue" = "xyes" ], [
654	>	if [[ "xOSX_CORE_AUDIO" = "xno"  -a "x$WANT_SDL_AUDIO"="xno"]]; then
655	>	AC_MSG_ERROR([You need SDL or OSX Core Audio to use BINCUE support.])
656	>	else
657	>	CPPFLAGS="$CPPFLAGS -DBINCUE $OSX_CORE_AUDIO"
658	>	fi
659	>	])
660	>
661	>	dnl LIBVHD
662	>	AS_IF([test  "x$with_libvhd" = "xyes" ], [have_libvhd=yes], [have_libvhd=no])
663	>	AS_IF([test  "x$have_libvhd" = "xyes" ], [
664	>	CPPFLAGS="$CPPFLAGS -DHAVE_LIBVHD"
665	>	LIBS="$LIBS -lvhd"
666	>	case $target_os in
667	>	linux*)
668	>	LIBS="$LIBS -luuid"
669	>	esac
670	>	AC_CHECK_LIB(vhd, vhd_open)
671	>	AC_CHECK_LIB(vhd, vhd_io_read)
672	>	AC_CHECK_LIB(vhd, vhd_io_write)
673	>	AC_CHECK_LIB(vhd, vhd_close)
674	>	])
675	>
676	>
677	>
678	>
679	>	dnl Is the slirp library supported?
680	>	case "$ac_cv_have_byte_bitfields" in
681	>	yes|"guessing yes")
682	>	CAN_SLIRP=yes
683	>	ETHERSRC=ether_unix.cpp
684		;;
685		esac
686	+	if [[ -n "$CAN_SLIRP" ]]; then
687	+	AC_DEFINE(HAVE_SLIRP, 1, [Define if slirp library is supported])
688	+	SLIRP_SRCS="\
689	+	../slirp/bootp.c     ../slirp/ip_output.c  ../slirp/tcp_input.c  \
690	+	../slirp/cksum.c     ../slirp/mbuf.c       ../slirp/tcp_output.c \
691	+	../slirp/debug.c     ../slirp/misc.c       ../slirp/tcp_subr.c   \
692	+	../slirp/if.c        ../slirp/sbuf.c       ../slirp/tcp_timer.c  \
693	+	../slirp/ip_icmp.c   ../slirp/slirp.c      ../slirp/tftp.c       \
694	+	../slirp/ip_input.c  ../slirp/socket.c     ../slirp/udp.c"
695	+	fi
696	+	AC_SUBST(SLIRP_SRCS)
697
698		dnl SDL overrides
699		if [[ "x$WANT_SDL" = "xyes" ]]; then
700		AC_DEFINE(USE_SDL, 1, [Define to enble SDL support.])
701	+	if [[ "x$WANT_SDL_FRAMEWORK" = "xyes" ]]; then
702	+	EXTRASYSSRCS="$EXTRASYSSRCS ../SDL/SDLMain.m"
703	+	fi
704		fi
705		if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
706		AC_DEFINE(USE_SDL_VIDEO, 1, [Define to enable SDL video graphics support.])
#	Line 478 | Line 709 | if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; th
709		if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
710		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
711		else
712	<	case "$target_os" in
482	<	cygwin*)
483	<	EXTRASYSSRCS="$EXTRASYSSRCS ../Windows/clip_windows.cpp"
484	<	;;
485	<	*)
486	<	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
487	<	;;
488	<	esac
712	>	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
713		fi
714		else
715		VIDEOSRCS="video_x.cpp"
#	Line 497 | Line 721 | if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; th
721		AUDIOSRC="../SDL/audio_sdl.cpp"
722		fi
723
724	<	SYSSRCS="$VIDEOSRCS $EXTFSSRC $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $EXTRASYSSRCS"
724	>	dnl BINCUE overrides
725	>
726	>	if [[ "x$have_bincue" = "xyes" ]]; then
727	>	EXTRASYSSRCS="$EXTRASYSSRCS bincue_unix.cpp"
728	>	fi
729	>
730	>	dnl libvhd overrides
731	>
732	>	if [[ "x$have_libvhd" = "xyes" ]]; then
733	>	EXTRASYSSRCS="$EXTRASYSSRCS vhd_unix.cpp"
734	>	fi
735	>
736	>
737	>	SYSSRCS="$VIDEOSRCS $EXTFSSRC $PREFSSRC $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $EXTRASYSSRCS"
738
739		dnl Define a macro that translates a yesno-variable into a C macro definition
740		dnl to be put into the config.h file
741		dnl $1 -- the macro to define
742		dnl $2 -- the value to translate
743		dnl $3 -- template name
744	<	AC_DEFUN(AC_TRANSLATE_DEFINE, [
744	>	AC_DEFUN([AC_TRANSLATE_DEFINE], [
745		if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
746		AC_DEFINE($1, 1, $3)
747		fi
#	Line 913 | Line 1150 | fi
1150
1151		dnl Check addressing mode to use
1152		AC_MSG_CHECKING([for addressing mode to use])
916	–	case "$os_target" in
917	–	cygwin*)
918	–	WANT_ADDRESSING_MODE="direct,cygwin-hack"
919	–	NATMEM_OFFSET=
920	–	;;
921	–	esac
1153		if [[ "$EMULATED_PPC" != "yes" ]]; then
1154		if [[ "$WANT_ADDRESSING_MODE" != "real" ]]; then
1155		AC_MSG_WARN([Running in native PowerPC mode, force use of Real Addressing.])
#	Line 1150 | Line 1381 | fi
1381		dnl Check for GCC 2.7 or higher.
1382		HAVE_GCC27=no
1383		AC_MSG_CHECKING(for GCC 2.7 or higher)
1384	<	AC_EGREP_CPP(xyes,
1385	<	[#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
1386	<	xyes
1387	<	#endif
1388	<	], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
1384	>	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5)
1385	>	# error gcc < 2.7
1386	>	typedef syntax error;
1387	>	#endif
1388	>	]])],
1389	>	[AC_MSG_RESULT(yes); HAVE_GCC27=yes],
1390	>	[AC_MSG_RESULT(no)])
1391
1392		dnl Check for GCC 3.0 or higher.
1393		HAVE_GCC30=no
1394		AC_MSG_CHECKING(for GCC 3.0 or higher)
1395	<	AC_EGREP_CPP(xyes,
1396	<	[#if __GNUC__ >= 3
1397	<	xyes
1398	<	#endif
1399	<	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
1395	>	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ >= 3)
1396	>	# error gcc < 3
1397	>	typedef syntax error;
1398	>	#endif
1399	>	]])],
1400	>	[AC_MSG_RESULT(yes); HAVE_GCC30=yes],
1401	>	[AC_MSG_RESULT(no)])
1402
1403		dnl Check for ICC.
1404		AC_MSG_CHECKING(for ICC)
#	Line 1194 | Line 1429 | AC_CACHE_CHECK([the format of compiler g
1429		rm -rf conftest*
1430		])
1431
1432	+	dnl Add -fno-strict-aliasing for slirp sources
1433	+	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1434	+	SAVED_CFLAGS="$CFLAGS"
1435	+	CFLAGS="$CFLAGS -fno-strict-aliasing"
1436	+	AC_CACHE_CHECK([whether the compiler supports -fno-strict-aliasing],
1437	+	ac_cv_gcc_no_strict_aliasing, [
1438	+	AC_TRY_COMPILE([],[],
1439	+	[ac_cv_gcc_no_strict_aliasing=yes; AC_SUBST(SLIRP_CFLAGS, "-fno-strict-aliasing")],
1440	+	[ac_cv_gcc_no_strict_aliasing=no])
1441	+	])
1442	+	CFLAGS="$SAVED_CFLAGS"
1443	+	fi
1444	+
1445	+	dnl Add -mdynamic-no-pic for MacOS X (XXX icc10 will support MacOS X)
1446	+	if [[ "x$HAVE_GCC30" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1447	+	SAVED_CFLAGS="$CFLAGS"
1448	+	CFLAGS="$CFLAGS -mdynamic-no-pic"
1449	+	AC_CACHE_CHECK([whether the compiler supports -mdynamic-no-pic],
1450	+	ac_cv_gcc_mdynamic_no_pic, [
1451	+	AC_TRY_COMPILE([],[],[ac_cv_gcc_mdynamic_no_pic=yes],[ac_cv_gcc_mdynamic_no_pic=no])
1452	+	])
1453	+	if [[ "x$ac_cv_gcc_mdynamic_no_pic" = "xyes" ]]; then
1454	+	CXXFLAGS="$CXXFLAGS -mdynamic-no-pic"
1455	+	else
1456	+	CFLAGS="$SAVED_CFLAGS"
1457	+	fi
1458	+	fi
1459	+
1460		dnl CPU emulator sources
1461		if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1462		CPUSRCS="\
#	Line 1202 | Line 1465 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1465		../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
1466		../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
1467		../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
1468	<	../kpx_cpu/src/cpu/ppc/ppc-translate.cpp"
1468	>	../kpx_cpu/src/cpu/ppc/ppc-translate.cpp \
1469	>	../kpx_cpu/src/utils/utils-cpuinfo.cpp"
1470		CPPFLAGS="$CPPFLAGS -I../kpx_cpu/include -I../kpx_cpu/src"
1471
1472		dnl Enable JIT compiler, if possible
#	Line 1219 | Line 1483 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1483		i?86:elf)
1484		ac_cv_use_dyngen=yes
1485		;;
1486	+	mips:elf)
1487	+	ac_cv_use_dyngen=yes
1488	+	;;
1489		powerpc:mach)
1490		ac_cv_use_dyngen=yes
1491		;;
1492	+	i?86:mach)
1493	+	ac_cv_use_dyngen=yes
1494	+	;;
1495		*:*)
1496		ac_cv_use_dyngen=no
1497		;;
#	Line 1231 | Line 1501 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1501		if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1502		DYNGEN_CC=$CXX
1503		else
1504	<	for p in /usr/bin /usr/local/bin; do
1504	>	for p in /usr/bin /usr/local/bin /usr/freeware/bin; do
1505		gxx="$p/g++"
1506		if [[ -x "$gxx" ]]; then
1507		DYNGEN_CC="$gxx"
#	Line 1246 | Line 1516 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1516		if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
1517		case $host_cpu in
1518		i?86)
1519	<	DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
1519	>	DYNGEN_OP_FLAGS="-fomit-frame-pointer"
1520	>	;;
1521	>	mips)
1522	>	DYNGEN_OP_FLAGS="-fno-delayed-branch -mno-abicalls"
1523		;;
1524		powerpc)
1525		if [[ "x$ac_cv_object_format" = "xmach" ]]; then
#	Line 1254 | Line 1527 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1527		fi
1528		;;
1529		esac
1530	<	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1531	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
1530	>	have_dyngen_gcc3=no
1531	>	case "x`$DYNGEN_CC -dumpversion`" in
1532	>	x[12].*) ;;
1533	>	x*) have_dyngen_gcc3=yes ;;
1534	>	esac
1535	>	if [[ "x$have_dyngen_gcc3" = "xyes" ]]; then
1536	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-align-functions"
1537		else
1538		DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1539		fi
1540	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000 -fno-exceptions -g0"
1541	<	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1540	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-functions -finline-limit=10000 -fno-exceptions -g0"
1541	>	if [[ "x$have_dyngen_gcc3" = "xyes" ]]; then
1542		DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
1543		fi
1544	+	if [[ "x$DYNGEN_CC" != "x$CXX" ]]; then
1545	+	DYNGEN_CFLAGS="-O2 $CFLAGS"
1546	+	DYNGEN_CXXFLAGS="-O2 $CXXFLAGS"
1547	+	else
1548	+	DYNGEN_CFLAGS="\$(CFLAGS)"
1549	+	DYNGEN_CXXFLAGS="\$(CXXFLAGS)"
1550	+	fi
1551		else
1552		WANT_JIT=no
1553		fi
#	Line 1274 | Line 1559 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1559		CPUSRCS="\
1560		../kpx_cpu/src/cpu/jit/jit-cache.cpp \
1561		../kpx_cpu/src/cpu/jit/basic-dyngen.cpp \
1562	<	../kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp $CPUSRCS"
1562	>	../kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp \
1563	>	../kpx_cpu/src/cpu/ppc/ppc-jit.cpp $CPUSRCS"
1564		fi
1565		fi
1566		CPUSRCS="$CPUSRCS ../kpx_cpu/sheepshaver_glue.cpp"
1567		else
1568		WANT_JIT=no
1569		fi
1284	–	if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
1285	–	AC_CACHE_CHECK([whether static data regions are executable],
1286	–	ac_cv_have_static_data_exec, [
1287	–	AC_TRY_RUN([int main(void) {
1288	–	#if defined(__powerpc__) || defined(__ppc__)
1289	–	static unsigned int p[8] = {0x4e800020,};
1290	–	asm volatile("dcbst 0,%0" : : "r" (p) : "memory");
1291	–	asm volatile("sync" : : : "memory");
1292	–	asm volatile("icbi 0,%0" : : "r" (p) : "memory");
1293	–	asm volatile("sync" : : : "memory");
1294	–	asm volatile("isync" : : : "memory");
1295	–	((void (*)(void))p)();
1296	–	return 0;
1297	–	#endif
1298	–	return 1;
1299	–	}], ac_cv_have_static_data_exec=yes, ac_cv_have_static_data_exec=no,
1300	–	dnl When cross-compiling, do not assume anything.
1301	–	ac_cv_have_static_data_exec=no
1302	–	)
1303	–	])
1304	–	else
1305	–	ac_cv_use_dyngen=no
1306	–	fi
1307	–	AC_TRANSLATE_DEFINE(HAVE_STATIC_DATA_EXEC, "$ac_cv_have_static_data_exec",
1308	–	[Define if your system marks static data pages as executable.])
1309	–
1570		if [[ "x$WANT_JIT" = "xyes" ]]; then
1571		CPPFLAGS="$CPPFLAGS -DUSE_JIT"
1572		fi
1573
1574	+	dnl Higher level optimizations with MIPSPro compilers are possible
1575	+	if [[ "x$HAVE_IPA" = "xyes" ]]; then
1576	+	CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1577	+	CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1578	+	CXXFLAGS="-LANG:std $CXXFLAGS"
1579	+	LDFLAGS="$LDFLAGS -O3 -OPT:Olimit=0 -IPA"
1580	+	fi
1581	+
1582	+	dnl Check for linker script support
1583	+	case $target_os:$target_cpu in
1584	+	linux*:i?86)    LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";;
1585	+	linux*:x86_64)  LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-x86_64.ld";;
1586	+	linux*:powerpc) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-ppc.ld";;
1587	+	netbsd*:i?86)   LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";;
1588	+	freebsd*:i?86)  LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/freebsd-i386.ld";;
1589	+	darwin*:*)      LINKER_SCRIPT_FLAGS="-Wl,-seg1addr,0x78048000";;
1590	+	esac
1591	+	if [[ -n "$LINKER_SCRIPT_FLAGS" ]]; then
1592	+	AC_CACHE_CHECK([whether linker script is usable],
1593	+	ac_cv_linker_script_works, [
1594	+	AC_LANG_SAVE
1595	+	AC_LANG_CPLUSPLUS
1596	+	saved_LDFLAGS="$LDFLAGS"
1597	+	LDFLAGS="$LDFLAGS $LINKER_SCRIPT_FLAGS"
1598	+	AC_TRY_RUN(
1599	+	[int main() {if ((char *)&main < (char *)0x70000000) return 1;}],
1600	+	[ac_cv_linker_script_works=yes],
1601	+	[ac_cv_linker_script_works=no],
1602	+	dnl When cross-compiling, assume it works
1603	+	[ac_cv_linker_script_works="guessing yes"]
1604	+	)
1605	+	AC_LANG_RESTORE
1606	+	if [[ "$ac_cv_linker_script_works" = "no" ]]; then
1607	+	LDFLAGS="$saved_LDFLAGS"
1608	+	LINKER_SCRIPT_FLAGS=""
1609	+	fi
1610	+	])
1611	+	fi
1612	+	AC_TRANSLATE_DEFINE(HAVE_LINKER_SCRIPT, "$ac_cv_linker_script_works",
1613	+	[Define if there is a linker script to relocate the executable above 0x70000000.])
1614	+
1615		dnl Generate Makefile.
1616		AC_SUBST(PERL)
1617		AC_SUBST(USE_DYNGEN, [$ac_cv_use_dyngen])
1618		AC_SUBST(DYNGENSRCS)
1619		AC_SUBST(DYNGEN_CC)
1620	+	AC_SUBST(DYNGEN_CFLAGS)
1621	+	AC_SUBST(DYNGEN_CXXFLAGS)
1622		AC_SUBST(DYNGEN_OP_FLAGS)
1623		AC_SUBST(SYSSRCS)
1624		AC_SUBST(CPUSRCS)
#	Line 1331 | Line 1634 | echo
1634		echo SheepShaver configuration summary:
1635		echo
1636		echo SDL support ...................... : $SDL_SUPPORT
1637	+	echo BINCUE support ................... : $have_bincue
1638	+	echo LIBVHD support ................... : $have_libvhd
1639		echo FBDev DGA support ................ : $WANT_FBDEV_DGA
1640		echo XFree86 DGA support .............. : $WANT_XF86_DGA
1641		echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE

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