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

Comparing SheepShaver/src/Unix/configure.ac (file contents):
Revision 1.1 by gbeauche, 2004-06-30T08:45:14Z vs.
Revision 1.63 by asvitkine, 2009-02-11T19:22:16Z

#	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 10 | Line 10 | dnl Canonical system information.
10		AC_CANONICAL_HOST
11		AC_CANONICAL_TARGET
12
13	+	dnl Some systems do not put corefiles in the currect directory, avoid saving
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=$withval])
43
44	+	dnl Addressing mode
45	+	AC_ARG_ENABLE(addressing,
46	+	[  --enable-addressing=AM  set the addressing mode to use [default=real]],
47	+	[case "$enableval" in
48	+	real)        WANT_ADDRESSING_MODE="real";;
49	+	direct)      WANT_ADDRESSING_MODE="direct";;
50	+	direct,0x*)  WANT_ADDRESSING_MODE="direct"; NATMEM_OFFSET=`echo "$enableval" | sed -n '/direct,\(0[[xX]][[0-9A-Fa-f]]*\([[UuLl]]\{1,2\}\)\?\)$/s//\1/p'`;;
51	+	esac],
52	+	[WANT_ADDRESSING_MODE="real"]
53	+	)
54	+
55		dnl SDL options.
56		AC_ARG_ENABLE(sdl-static,   [  --enable-sdl-static     use SDL static libraries for linking [default=no]], [WANT_SDL_STATIC=$enableval], [WANT_SDL_STATIC=no])
57		AC_ARG_ENABLE(sdl-video,    [  --enable-sdl-video      use SDL for video graphics [default=no]], [WANT_SDL_VIDEO=$enableval], [WANT_SDL_VIDEO=no])
58	+	AC_ARG_ENABLE(sdl-audio,    [  --enable-sdl-audio      use SDL for audio [default=no]], [WANT_SDL_AUDIO=$enableval], [WANT_SDL_AUDIO=no])
59
60		dnl Checks for programs.
61		AC_PROG_CC
#	Line 31 | Line 63 | AC_PROG_CPP
63		AC_PROG_CXX
64		AC_PROG_MAKE_SET
65		AC_PROG_INSTALL
66	+	AC_PROG_EGREP
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 71 | Line 106 | if [[ "x$WANT_MON" = "xyes" ]]; then
106		if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
107		AC_MSG_RESULT(yes)
108		AC_DEFINE(ENABLE_MON, 1, [Define if using "mon".])
109	<	MONSRCS="$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 $mon_srcdir/disass/m68k-opc.c"
109	>	MONSRCS="$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 $mon_srcdir/disass/mips16-opc.c"
110		CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
111		AC_CHECK_LIB(ncurses, tgetent, ,
112		AC_CHECK_LIB(termcap, tgetent, ,
#	Line 87 | Line 122 | if [[ "x$WANT_MON" = "xyes" ]]; then
122		WANT_MON=no
123		fi
124		fi
125	+	AC_SUBST(MONSRCS)
126
127		dnl Checks for libraries.
128		AC_CHECK_LIB(posix4, sem_init)
129	+	AC_CHECK_LIB(m, cos)
130
131		dnl Do we need SDL?
132		WANT_SDL=no
96	–	SDL_SUPPORT="none"
133		if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
134		WANT_SDL=yes
135		WANT_XF86_DGA=no
136		WANT_XF86_VIDMODE=no
137		WANT_FBDEV_DGA=no
138	<	SDL_SUPPORT="video"
138	>	SDL_SUPPORT="$SDL_SUPPORT video"
139	>	fi
140	>	if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; then
141	>	WANT_SDL=yes
142	>	SDL_SUPPORT="$SDL_SUPPORT audio"
143		fi
144		if [[ "x$WANT_SDL" = "xyes" ]]; then
145		AC_PATH_PROG(sdl_config, "sdl-config")
#	Line 115 | Line 155 | if [[ "x$WANT_SDL" = "xyes" ]]; then
155		LIBS="$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
163	+	SDL_SUPPORT="none"
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 132 | 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 140 | 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)
151	–	if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
152	–	AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
153	–	fi
199		dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
200		SEMSRC=
201		AC_CHECK_FUNCS(sem_init, , [
#	Line 160 | Line 205 | no:linux*)
205		])
206		;;
207		esac
208	+	if [[ "x$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 185 | 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 $GTK_CFLAGS"
193	<	LIBS="$LIBS $GTK_LIBS"
194	<	UISRCS=prefs_editor_gtk.cpp
270	>	GUI_CFLAGS="$GTK_CFLAGS"
271	>	GUI_LIBS="$GTK_LIBS"
272	>	WANT_GTK=gtk
273		], [
274		AC_MSG_WARN([Could not find GTK+, disabling user interface.])
197	–	WANT_GTK=no
275		])
276		fi
277	+	if [[ "x$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 $ESD_LIBS"
301	+	WANT_ESD=yes
302		], [
303		AC_MSG_WARN([Could not find ESD, disabling ESD support.])
210	–	WANT_ESD=no
304		])
305		fi
306
307	+	dnl We use 64-bit file size support if possible.
308	+	AC_SYS_LARGEFILE
309	+
310		dnl Checks for header files.
311		AC_HEADER_STDC
312		AC_HEADER_SYS_WAIT
313	+	AC_CHECK_HEADERS(malloc.h stdint.h)
314		AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h)
315	<	AC_CHECK_HEADERS(sys/time.h sys/times.h sys/socket.h)
316	<	AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h)
317	<	AC_CHECK_HEADERS(linux/if.h, [], [], [
318	<	#if HAVE_SYS_SOCKET_H
319	<	# include <sys/socket.h>
315	>	AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h dirent.h)
316	>	AC_CHECK_HEADERS(sys/socket.h sys/ioctl.h sys/filio.h sys/bitypes.h sys/wait.h)
317	>	AC_CHECK_HEADERS(sys/time.h sys/poll.h sys/select.h arpa/inet.h)
318	>	AC_CHECK_HEADERS(linux/if.h linux/if_tun.h net/if.h net/if_tun.h, [], [], [
319	>	#ifdef HAVE_SYS_TYPES_H
320	>	#include <sys/types.h>
321	>	#endif
322	>	#ifdef HAVE_SYS_SOCKET_H
323	>	#include <sys/socket.h>
324		#endif
325		])
326	<	AC_CHECK_HEADERS(linux/if_tun.h net/if.h net/if_tun.h)
326	>	AC_CHECK_HEADERS(AvailabilityMacros.h)
327	>	AC_CHECK_HEADERS(IOKit/storage/IOBlockStorageDevice.h)
328	>	AC_CHECK_HEADERS(fenv.h)
329
330		dnl Checks for typedefs, structures, and compiler characteristics.
331		AC_C_BIGENDIAN
#	Line 242 | Line 345 | AC_TYPE_SIGNAL
345		AC_HEADER_TIME
346		AC_STRUCT_TM
347
348	+	dnl Check whether sys/socket.h defines type socklen_t.
349	+	dnl (extracted from ac-archive/Miscellaneous)
350	+	AC_CACHE_CHECK([for socklen_t],
351	+	ac_cv_type_socklen_t, [
352	+	AC_TRY_COMPILE([
353	+	#include <sys/types.h>
354	+	#include <sys/socket.h>
355	+	], [socklen_t len = 42; return 0;],
356	+	ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
357	+	dnl When cross-compiling, do not assume anything.
358	+	ac_cv_type_socklen_t="guessing no"
359	+	)
360	+	])
361	+	if [[ "x$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 258 | Line 378 | if [[ "x$ac_cv_signal_sa_restorer" = "xy
378		fi
379
380		dnl Checks for library functions.
381	<	AC_CHECK_FUNCS(strdup strlcpy cfmakeraw)
381	>	AC_CHECK_FUNCS(strdup strerror strlcpy cfmakeraw)
382		AC_CHECK_FUNCS(nanosleep)
383		AC_CHECK_FUNCS(sigaction signal)
384		AC_CHECK_FUNCS(mmap mprotect munmap)
385		AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
386	<	AC_CHECK_FUNCS(posix_memalign memalign valloc)
386	>	AC_CHECK_FUNCS(exp2f log2f exp2 log2)
387	>	AC_CHECK_FUNCS(floorf roundf ceilf truncf floor round ceil trunc)
388	>	AC_CHECK_FUNCS(poll inet_aton)
389
390		dnl Darwin seems to define mach_task_self() instead of task_self().
391		AC_CHECK_FUNCS(mach_task_self task_self)
#	Line 275 | Line 397 | no:linux*)
397		;;
398		*:*)
399		AC_SEARCH_LIBS(clock_gettime, [rt posix4])
400	<	AC_CHECK_FUNCS(clock_gettime)
400	>	AC_CHECK_FUNCS(clock_gettime clock_nanosleep)
401		;;
402		esac
403
404	+	dnl Check for headers and functions related to pty support (sshpty.c)
405	+	dnl From openssh-3.2.2p1 configure.ac
406	+	AC_CHECK_HEADERS(strings.h login.h sys/bsdtty.h sys/stat.h util.h pty.h)
407	+	AC_CHECK_FUNCS(_getpty vhangup strlcpy)
408	+
409	+	case "$host" in
410	+	*-*-hpux10.26)
411	+	disable_ptmx_check=yes
412	+	;;
413	+	*-*-linux*)
414	+	no_dev_ptmx=1
415	+	;;
416	+	mips-sony-bsd|mips-sony-newsos4)
417	+	AC_DEFINE(HAVE_NEWS4, 1, [Define if you are on NEWS-OS (additions from openssh-3.2.2p1, for sshpty.c).])
418	+	;;
419	+	*-*-sco3.2v4*)
420	+	no_dev_ptmx=1
421	+	;;
422	+	*-*-sco3.2v5*)
423	+	no_dev_ptmx=1
424	+	;;
425	+	*-*-cygwin*)
426	+	no_dev_ptmx=1
427	+	;;
428	+	*-*-darwin*)
429	+	no_dev_ptmx=1
430	+	;;
431	+	esac
432	+
433	+	if test -z "$no_dev_ptmx" ; then
434	+	if test "x$disable_ptmx_check" != "xyes" ; then
435	+	AC_CHECK_FILE([/dev/ptmx],
436	+	[
437	+	AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX, 1, [Define if you have /dev/ptmx.])
438	+	have_dev_ptmx=1
439	+	]
440	+	)
441	+	fi
442	+	fi
443	+	AC_CHECK_FILE([/dev/ptc],
444	+	[
445	+	AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC, 1, [Define if you have /dev/ptc.])
446	+	have_dev_ptc=1
447	+	]
448	+	)
449	+	dnl (end of code from openssh-3.2.2p1 configure.ac)
450	+
451	+	dnl Check for systems where POSIX-style non-blocking I/O (O_NONBLOCK)
452	+	dnl doesn't work or is unimplemented. On these systems (mostly older
453	+	dnl ones), use the old BSD-style FIONBIO approach instead. [tcl.m4]
454	+	AC_CACHE_CHECK([FIONBIO vs. O_NONBLOCK for non-blocking I/O],
455	+	ac_cv_nonblocking_io, [
456	+	case "$host" in
457	+	*-*-osf*)
458	+	ac_cv_nonblocking_io=FIONBIO
459	+	;;
460	+	*-*-sunos4*)
461	+	ac_cv_nonblocking_io=FIONBIO
462	+	;;
463	+	*-*-ultrix*)
464	+	ac_cv_nonblocking_io=FIONBIO
465	+	;;
466	+	*)
467	+	ac_cv_nonblocking_io=O_NONBLOCK
468	+	;;
469	+	esac
470	+	])
471	+	if [[ "$ac_cv_nonblocking_io" = "FIONBIO" ]]; then
472	+	AC_DEFINE(USE_FIONBIO, 1, [Define if BSD-style non-blocking I/O is to be used])
473	+	fi
474	+
475	+	dnl Check whether compiler supports byte bit-fields
476	+	AC_CACHE_CHECK([whether compiler supports byte bit-fields],
477	+	ac_cv_have_byte_bitfields, [
478	+	AC_LANG_SAVE
479	+	AC_LANG_CPLUSPLUS
480	+	AC_TRY_RUN([
481	+	struct A {
482	+	unsigned char b1:4;
483	+	unsigned char b2:4;
484	+	unsigned char c;
485	+	unsigned short s;
486	+	unsigned char a[4];
487	+	};
488	+
489	+	int main(void) {
490	+	A a;
491	+	return ! (sizeof(A) == 8 && &a.c == ((unsigned char *)&a + 1));
492	+	}],
493	+	[ac_cv_have_byte_bitfields=yes],
494	+	[ac_cv_have_byte_bitfields=no],
495	+	dnl When cross-compiling, assume only GCC supports this
496	+	[if [[ "$GCC" = "yes" ]]; then
497	+	ac_cv_have_byte_bitfields="guessing yes"
498	+	else
499	+	ac_cv_have_byte_bitfields="guessing no"
500	+	fi]
501	+	)
502	+	AC_LANG_RESTORE
503	+	])
504	+
505		dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES)
506	<	AC_DEFUN(AC_CHECK_FRAMEWORK, [
506	>	AC_DEFUN([AC_CHECK_FRAMEWORK], [
507		AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl
508		AC_CACHE_CHECK([whether compiler supports framework $1],
509		ac_Framework, [
510		saved_LIBS="$LIBS"
511		LIBS="$LIBS -framework $1"
512		AC_TRY_LINK(
513	<	[$2], [int main(void) { return 0; }],
513	>	[$2], [],
514		[AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"]
515		)
516		])
#	Line 300 | Line 523 | AC_DEFUN(AC_CHECK_FRAMEWORK, [
523		dnl Check for some MacOS X frameworks
524		AC_CHECK_FRAMEWORK(Carbon, [#include <Carbon/Carbon.h>])
525		AC_CHECK_FRAMEWORK(IOKit, [#include <IOKit/IOKitLib.h>])
526	+	AC_CHECK_FRAMEWORK(CoreFoundation, [#include <CoreFoundation/CoreFoundation.h>])
527	+	AC_CHECK_FRAMEWORK(CoreAudio, [#include <CoreAudio/CoreAudio.h>])
528	+	AC_CHECK_FRAMEWORK(AudioUnit, [#include <AudioUnit/AudioUnit.h>])
529	+	AC_CHECK_FRAMEWORK(AudioToolbox, [#include <AudioToolbox/AudioToolbox.h>])
530	+	AC_CHECK_FRAMEWORK(AppKit, [])
531
532		dnl Select system-dependant sources.
533		SERIALSRC=serial_unix.cpp
534		ETHERSRC=../dummy/ether_dummy.cpp
535		SCSISRC=../dummy/scsi_dummy.cpp
536		AUDIOSRC=../dummy/audio_dummy.cpp
537	+	PREFSSRC=../dummy/prefs_dummy.cpp
538	+	EXTFSSRC=extfs_unix.cpp
539		EXTRASYSSRCS=
540		case "$target_os" in
541		linux*)
542	<	ETHERSRC=Linux/ether_linux.cpp
542	>	ETHERSRC=ether_unix.cpp
543		AUDIOSRC=audio_oss_esd.cpp
544		SCSISRC=Linux/scsi_linux.cpp
545		if [[ "x$EMULATED_PPC" = "xno" ]]; then
546	<	EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
546	>	EXTRASYSSRCS="paranoia.cpp Linux/sheepthreads.c ppc_asm.S"
547	>	fi
548	>	;;
549	>	freebsd*)
550	>	ETHERSRC=ether_unix.cpp
551	>	;;
552	>	netbsd*)
553	>	ETHERSRC=ether_unix.cpp
554	>	if [[ "x$EMULATED_PPC" = "xno" ]]; then
555	>	EXTRASYSSRCS="paranoia.cpp NetBSD/sheepthreads.c ppc_asm.S"
556		fi
557		;;
558		darwin*)
559	+	ETHERSRC=ether_unix.cpp
560		if [[ "x$EMULATED_PPC" = "xno" ]]; then
561	<	EXTRASYSSRCS="Darwin/paranoia.cpp Linux/asm_linux.S"
561	>	EXTRASYSSRCS="paranoia.cpp ppc_asm.S"
562		fi
563	<	if [[ "x$ac_cv_framework_IOKit" = "xyes" ]]; then
563	>	if [[ "x$ac_cv_framework_IOKit" = "xyes" -a "x$ac_cv_framework_CoreFoundation" = "xyes" ]]; then
564		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/sys_darwin.cpp"
565		fi
566	+	if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
567	+	EXTFSSRC=../MacOSX/extfs_macosx.cpp
568	+	if [[ "x$ac_cv_framework_AppKit" = "xyes" ]]; then
569	+	PREFSSRC="../MacOSX/prefs_macosx.mm ../MacOSX/PrefsEditor/PrefsEditor.mm"
570	+	CPPFLAGS="$CPPFLAGS -I../MacOSX/PrefsEditor"
571	+	fi
572	+	fi
573	+	if [[ "x$ac_cv_framework_CoreAudio" = "xyes" -a "x$WANT_SDL_AUDIO" = "xno" ]]; then
574	+	AUDIOSRC="../MacOSX/audio_macosx.cpp ../MacOSX/AudioBackEnd.cpp ../MacOSX/AudioDevice.cpp ../MacOSX/MacOSX_sound_if.cpp"
575	+	fi
576	+	;;
577	+	irix*)
578	+	AUDIOSRC=Irix/audio_irix.cpp
579	+	LIBS="$LIBS -laudio"
580	+	WANT_ESD=no
581	+
582	+	dnl Check if our compiler supports -IPA (MIPSPro)
583	+	HAVE_IPA=no
584	+	ocflags="$CFLAGS"
585	+	CFLAGS=`echo " $CFLAGS -IPA" | sed -e "s/ -g //g"`
586	+	AC_MSG_CHECKING(if "-IPA" works)
587	+	dnl Do a test compile of an empty function
588	+	AC_TRY_COMPILE([#if defined __GNUC__
589	+	# error GCC does not support IPA yet
590	+	#endif],, [AC_MSG_RESULT(yes); HAVE_IPA=yes], AC_MSG_RESULT(no))
591	+	CFLAGS="$ocflags"
592		;;
593		esac
594
595	+	dnl Is the slirp library supported?
596	+	case "$ac_cv_have_byte_bitfields" in
597	+	yes|"guessing yes")
598	+	CAN_SLIRP=yes
599	+	ETHERSRC=ether_unix.cpp
600	+	;;
601	+	esac
602	+	if [[ -n "$CAN_SLIRP" ]]; then
603	+	AC_DEFINE(HAVE_SLIRP, 1, [Define if slirp library is supported])
604	+	SLIRP_SRCS="\
605	+	../slirp/bootp.c     ../slirp/ip_output.c  ../slirp/tcp_input.c  \
606	+	../slirp/cksum.c     ../slirp/mbuf.c       ../slirp/tcp_output.c \
607	+	../slirp/debug.c     ../slirp/misc.c       ../slirp/tcp_subr.c   \
608	+	../slirp/if.c        ../slirp/sbuf.c       ../slirp/tcp_timer.c  \
609	+	../slirp/ip_icmp.c   ../slirp/slirp.c      ../slirp/tftp.c       \
610	+	../slirp/ip_input.c  ../slirp/socket.c     ../slirp/udp.c"
611	+	fi
612	+	AC_SUBST(SLIRP_SRCS)
613	+
614		dnl SDL overrides
615		if [[ "x$WANT_SDL" = "xyes" ]]; then
616		AC_DEFINE(USE_SDL, 1, [Define to enble SDL support.])
617		fi
618		if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
334	–	VIDEOSRCS="../SDL/video_sdl.cpp"
619		AC_DEFINE(USE_SDL_VIDEO, 1, [Define to enable SDL video graphics support.])
620	+	VIDEOSRCS="../SDL/video_sdl.cpp"
621		KEYCODES="../SDL/keycodes"
622		if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
623		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
#	Line 344 | Line 629 | else
629		KEYCODES="keycodes"
630		EXTRASYSSRCS="$EXTRASYSSRCS clip_unix.cpp"
631		fi
632	+	if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; then
633	+	AC_DEFINE(USE_SDL_AUDIO, 1, [Define to enable SDL audio support])
634	+	AUDIOSRC="../SDL/audio_sdl.cpp"
635	+	fi
636
637	<	SYSSRCS="$VIDEOSRCS $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
637	>	SYSSRCS="$VIDEOSRCS $EXTFSSRC $PREFSSRC $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $EXTRASYSSRCS"
638
639		dnl Define a macro that translates a yesno-variable into a C macro definition
640		dnl to be put into the config.h file
641		dnl $1 -- the macro to define
642		dnl $2 -- the value to translate
643		dnl $3 -- template name
644	<	AC_DEFUN(AC_TRANSLATE_DEFINE, [
644	>	AC_DEFUN([AC_TRANSLATE_DEFINE], [
645		if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
646		AC_DEFINE($1, 1, $3)
647		fi
#	Line 649 | Line 938 | fi
938		AC_TRANSLATE_DEFINE(HAVE_MACH_EXCEPTIONS, "$ac_cv_have_mach_exceptions",
939		[Define if your system supports Mach exceptions.])
940
941	+	dnl Check if Windows exceptions are supported.
942	+	AC_CACHE_CHECK([whether your system supports Windows exceptions],
943	+	ac_cv_have_win32_exceptions, [
944	+	AC_LANG_SAVE
945	+	AC_LANG_CPLUSPLUS
946	+	AC_TRY_RUN([
947	+	#define HAVE_WIN32_EXCEPTIONS 1
948	+	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
949	+	#include "vm_alloc.cpp"
950	+	#include "sigsegv.cpp"
951	+	], [
952	+	sigsegv_recovery=win32
953	+	ac_cv_have_win32_exceptions=yes
954	+	],
955	+	ac_cv_have_win32_exceptions=no,
956	+	dnl When cross-compiling, do not assume anything.
957	+	ac_cv_have_win32_exceptions=no
958	+	)
959	+	AC_LANG_RESTORE
960	+	]
961	+	)
962	+	AC_TRANSLATE_DEFINE(HAVE_WIN32_EXCEPTIONS, "$ac_cv_have_win32_exceptions",
963	+	[Define if your system supports Windows exceptions.])
964	+
965		dnl Otherwise, check if extended signals are supported.
966		if [[ -z "$sigsegv_recovery" ]]; then
967		AC_CACHE_CHECK([whether your system supports extended signal handlers],
#	Line 735 | Line 1048 | else
1048		WANT_VOSF=no
1049		fi
1050
1051	+	dnl Check addressing mode to use
1052	+	AC_MSG_CHECKING([for addressing mode to use])
1053	+	if [[ "$EMULATED_PPC" != "yes" ]]; then
1054	+	if [[ "$WANT_ADDRESSING_MODE" != "real" ]]; then
1055	+	AC_MSG_WARN([Running in native PowerPC mode, force use of Real Addressing.])
1056	+	WANT_ADDRESSING_MODE="real"
1057	+	fi
1058	+	fi
1059	+	if [[ "$WANT_ADDRESSING_MODE" = "direct" ]]; then
1060	+	if [[ -n "$NATMEM_OFFSET" ]]; then
1061	+	NATMEM_OFFSET_DEF="-DNATMEM_OFFSET=$NATMEM_OFFSET"
1062	+	fi
1063	+	AC_LANG_SAVE
1064	+	AC_LANG_CPLUSPLUS
1065	+	cat confdefs.h > conftest.$ac_ext
1066	+	cat >> conftest.$ac_ext << EOF
1067	+	#include <stdio.h>
1068	+	#include <string.h>
1069	+	#include "vm_alloc.cpp"
1070	+
1071	+	int main(void)
1072	+	{
1073	+	if (vm_init() < 0)
1074	+	return 1;
1075	+
1076	+	static const struct {
1077	+	unsigned long base;
1078	+	unsigned int size;
1079	+	} ranges[[]] = {
1080	+	{ 0x00000000, 0x0003000 },
1081	+	{ 0x10000000, 0x2000000 },
1082	+	{ 0x40800000, 0x0400000 },
1083	+	{ 0x68070000, 0x0010000 },
1084	+	{ 0x69000000, 0x0080000 },
1085	+	{ 0x68ffe000, 0x0002000 },
1086	+	{ 0x5fffe000, 0x0002000 },
1087	+	{ 0x60000000, 0x0040000 },
1088	+	};
1089	+	const int n_ranges = sizeof(ranges)/ sizeof(ranges[[0]]);
1090	+
1091	+	#ifdef NATMEM_OFFSET
1092	+	unsigned long ofs = NATMEM_OFFSET;
1093	+	#else
1094	+	for (unsigned long ofs = 0x10000000; ofs <= 0x90000000; ofs += 0x10000000)
1095	+	#endif
1096	+	for (int i = 0; i < n_ranges; i++) {
1097	+	char *m = (char *)(ranges[[i]].base + ofs);
1098	+	if (vm_acquire_fixed(m, ranges[[i]].size) != 0)
1099	+	break;
1100	+	memset(m, 0, ranges[[i]].size);
1101	+	vm_release(m, ranges[[i]].size);
1102	+	if (i == n_ranges - 1) {
1103	+	if (sizeof(void *) == 8 && ofs > 0xffffffff)
1104	+	printf("0x%lxul\n", ofs);
1105	+	else
1106	+	printf("0x%08x\n", ofs);
1107	+	return 0;
1108	+	}
1109	+	}
1110	+
1111	+	vm_exit();
1112	+	return 1;
1113	+	}
1114	+	EOF
1115	+	doit='$CXX conftest.$ac_ext -o conftest.$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS $LIBS $NATMEM_OFFSET_DEF >& AS_MESSAGE_LOG_FD'
1116	+	if AC_TRY_EVAL(doit); then
1117	+	NATMEM_OFFSET=`./conftest.$ac_exeext`
1118	+	else
1119	+	NATMEM_OFFSET=
1120	+	fi
1121	+	rm -f conftest*
1122	+	AC_LANG_RESTORE
1123	+
1124	+	if [[ -z "$NATMEM_OFFSET" ]]; then
1125	+	AC_MSG_ERROR([could not determine a sensible NATMEM_OFFSET value])
1126	+	else
1127	+	WANT_ADDRESSING_MODE="direct,$NATMEM_OFFSET"
1128	+	AC_DEFINE_UNQUOTED(NATMEM_OFFSET, $NATMEM_OFFSET,
1129	+	[Define constant offset for Mac address translation])
1130	+	fi
1131	+	fi
1132	+	AC_MSG_RESULT($WANT_ADDRESSING_MODE)
1133	+
1134	+	dnl Utility macro used by next two tests.
1135	+	dnl AC_EXAMINE_OBJECT(C source code,
1136	+	dnl     commands examining object file,
1137	+	dnl     [commands to run if compile failed]):
1138	+	dnl
1139	+	dnl Compile the source code to an object file; then convert it into a
1140	+	dnl printable representation.  All unprintable characters and
1141	+	dnl asterisks (*) are replaced by dots (.).  All white space is
1142	+	dnl deleted.  Newlines (ASCII 0x10) in the input are preserved in the
1143	+	dnl output, but runs of newlines are compressed to a single newline.
1144	+	dnl Finally, line breaks are forcibly inserted so that no line is
1145	+	dnl longer than 80 columns and the file ends with a newline.  The
1146	+	dnl result of all this processing is in the file conftest.dmp, which
1147	+	dnl may be examined by the commands in the second argument.
1148	+	dnl
1149	+	AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
1150	+	[AC_LANG_SAVE
1151	+	AC_LANG_C
1152	+	dnl Next bit cribbed from AC_TRY_COMPILE.
1153	+	cat > conftest.$ac_ext <<EOF
1154	+	[#line __oline__ "configure"
1155	+	#include "confdefs.h"
1156	+	$1
1157	+	]EOF
1158	+	if AC_TRY_EVAL(ac_compile); then
1159	+	od -c conftest.o |
1160	+	sed ['s/^[0-7]*[    ]*/ /
1161	+	s/\*/./g
1162	+	s/ \\n/*/g
1163	+	s/ [0-9][0-9][0-9]/./g
1164	+	s/  \\[^ ]/./g'] |
1165	+	tr -d '
1166	+	' | tr -s '*' '
1167	+	' | fold | sed '$a\
1168	+	' > conftest.dmp
1169	+	$2
1170	+	ifelse($3, , , else
1171	+	$3
1172	+	)dnl
1173	+	fi
1174	+	rm -rf conftest*
1175	+	AC_LANG_RESTORE])
1176	+
1177	+	dnl Floating point format probe.
1178	+	dnl The basic concept is the same as the above: grep the object
1179	+	dnl file for an interesting string.  We have to watch out for
1180	+	dnl rounding changing the values in the object, however; this is
1181	+	dnl handled by ignoring the least significant byte of the float.
1182	+	dnl
1183	+	dnl Does not know about VAX G-float or C4x idiosyncratic format.
1184	+	dnl It does know about PDP-10 idiosyncratic format, but this is
1185	+	dnl not presently supported by GCC.  S/390 "binary floating point"
1186	+	dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
1187	+	dnl as ASCII?)
1188	+	dnl
1189	+	AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
1190	+	[AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
1191	+	[gcc_AC_EXAMINE_OBJECT(
1192	+	[/* This will not work unless sizeof(double) == 8.  */
1193	+	extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
1194	+
1195	+	/* This structure must have no internal padding.  */
1196	+	struct possibility {
1197	+	char prefix[8];
1198	+	double candidate;
1199	+	char postfix[8];
1200	+	};
1201	+
1202	+	#define C(cand) { "\nformat:", cand, ":tamrof\n" }
1203	+	struct possibility table [] =
1204	+	{
1205	+	C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
1206	+	C( 3.53802595280598432000e+18), /* D__float - VAX */
1207	+	C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
1208	+	C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
1209	+	C(-5.22995989424860458374e+10)  /* IBMHEXFP - s/390 format, EBCDIC */
1210	+	};],
1211	+	[if   grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1212	+	ac_cv_c_float_format='IEEE (big-endian)'
1213	+	elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
1214	+	ac_cv_c_float_format='IEEE (big-endian)'
1215	+	elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
1216	+	ac_cv_c_float_format='IEEE (little-endian)'
1217	+	elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
1218	+	ac_cv_c_float_format='IEEE (little-endian)'
1219	+	elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
1220	+	ac_cv_c_float_format='VAX D-float'
1221	+	elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
1222	+	ac_cv_c_float_format='PDP-10'
1223	+	elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1224	+	ac_cv_c_float_format='IBM 370 hex'
1225	+	else
1226	+	AC_MSG_ERROR(Unknown floating point format)
1227	+	fi],
1228	+	[AC_MSG_ERROR(compile failed)])
1229	+	])
1230	+	# IEEE is the default format.  If the float endianness isn't the same
1231	+	# as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
1232	+	# (which is a tristate: yes, no, default).  This is only an issue with
1233	+	# IEEE; the other formats are only supported by a few machines each,
1234	+	# all with the same endianness.
1235	+	format=IEEE_FLOAT_FORMAT
1236	+	fbigend=
1237	+	case $ac_cv_c_float_format in
1238	+	'IEEE (big-endian)' )
1239	+	if test $ac_cv_c_bigendian = no; then
1240	+	fbigend=1
1241	+	fi
1242	+	;;
1243	+	'IEEE (little-endian)' )
1244	+	if test $ac_cv_c_bigendian = yes; then
1245	+	fbigend=0
1246	+	fi
1247	+	;;
1248	+	'VAX D-float' )
1249	+	format=VAX_FLOAT_FORMAT
1250	+	;;
1251	+	'PDP-10' )
1252	+	format=PDP10_FLOAT_FORMAT
1253	+	;;
1254	+	'IBM 370 hex' )
1255	+	format=IBM_FLOAT_FORMAT
1256	+	;;
1257	+	esac
1258	+	AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
1259	+	[Define to the floating point format of the host machine.])
1260	+	if test -n "$fbigend"; then
1261	+	AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
1262	+	[Define to 1 if the host machine stores floating point numbers in
1263	+	memory with the word containing the sign bit at the lowest address,
1264	+	or to 0 if it does it the other way around.
1265	+
1266	+	This macro should not be defined if the ordering is the same as for
1267	+	multi-word integers.])
1268	+	fi
1269	+	])
1270	+
1271	+	dnl Check for host float format
1272	+	gcc_AC_C_FLOAT_FORMAT
1273	+
1274		dnl Platform specific binary postprocessor
1275		AC_PATH_PROG(BLESS, "true")
1276		if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
#	Line 745 | Line 1281 | fi
1281		dnl Check for GCC 2.7 or higher.
1282		HAVE_GCC27=no
1283		AC_MSG_CHECKING(for GCC 2.7 or higher)
1284	<	AC_EGREP_CPP(xyes,
1285	<	[#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
1286	<	xyes
1287	<	#endif
1288	<	], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
1284	>	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5)
1285	>	# error gcc < 2.7
1286	>	typedef syntax error;
1287	>	#endif
1288	>	]])],
1289	>	[AC_MSG_RESULT(yes); HAVE_GCC27=yes],
1290	>	[AC_MSG_RESULT(no)])
1291
1292		dnl Check for GCC 3.0 or higher.
1293		HAVE_GCC30=no
1294		AC_MSG_CHECKING(for GCC 3.0 or higher)
1295	<	AC_EGREP_CPP(xyes,
1296	<	[#if __GNUC__ >= 3
1297	<	xyes
1298	<	#endif
1299	<	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
1295	>	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ >= 3)
1296	>	# error gcc < 3
1297	>	typedef syntax error;
1298	>	#endif
1299	>	]])],
1300	>	[AC_MSG_RESULT(yes); HAVE_GCC30=yes],
1301	>	[AC_MSG_RESULT(no)])
1302
1303		dnl Check for ICC.
1304		AC_MSG_CHECKING(for ICC)
#	Line 768 | Line 1308 | if $CXX -V -v 2>&1 | grep -q "Intel(R) C
1308		fi
1309		AC_MSG_RESULT($HAVE_ICC)
1310
1311	<	# Test if the compiler can generate ELF objects
1312	<	AC_CACHE_CHECK([whether the compiler can generate ELF objects],
1313	<	ac_cv_elf_objects, [
1311	>	dnl Determine the generated object format
1312	>	AC_CACHE_CHECK([the format of compiler generated objects],
1313	>	ac_cv_object_format, [
1314		echo 'int i;' > conftest.$ac_ext
1315	<	ac_cv_elf_objects=no
1315	>	ac_cv_object_format=no
1316		if AC_TRY_EVAL(ac_compile); then
1317		case `/usr/bin/file conftest.$ac_objext` in
1318		*"ELF"*)
1319	<	ac_cv_elf_objects=yes
1319	>	ac_cv_object_format=elf
1320	>	;;
1321	>	*"Mach-O"*)
1322	>	ac_cv_object_format=mach
1323	>	;;
1324	>	*)
1325	>	ac_cv_object_format=unknown
1326		;;
1327		esac
1328		fi
1329		rm -rf conftest*
1330		])
1331	<	ELF_OBJECTS=$ac_cv_elf_objects
1331	>
1332	>	dnl Add -fno-strict-aliasing for slirp sources
1333	>	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1334	>	SAVED_CFLAGS="$CFLAGS"
1335	>	CFLAGS="$CFLAGS -fno-strict-aliasing"
1336	>	AC_CACHE_CHECK([whether the compiler supports -fno-strict-aliasing],
1337	>	ac_cv_gcc_no_strict_aliasing, [
1338	>	AC_TRY_COMPILE([],[],
1339	>	[ac_cv_gcc_no_strict_aliasing=yes; AC_SUBST(SLIRP_CFLAGS, "-fno-strict-aliasing")],
1340	>	[ac_cv_gcc_no_strict_aliasing=no])
1341	>	])
1342	>	CFLAGS="$SAVED_CFLAGS"
1343	>	fi
1344	>
1345	>	dnl Add -mdynamic-no-pic for MacOS X (XXX icc10 will support MacOS X)
1346	>	if [[ "x$HAVE_GCC30" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1347	>	SAVED_CFLAGS="$CFLAGS"
1348	>	CFLAGS="$CFLAGS -mdynamic-no-pic"
1349	>	AC_CACHE_CHECK([whether the compiler supports -mdynamic-no-pic],
1350	>	ac_cv_gcc_mdynamic_no_pic, [
1351	>	AC_TRY_COMPILE([],[],[ac_cv_gcc_mdynamic_no_pic=yes],[ac_cv_gcc_mdynamic_no_pic=no])
1352	>	])
1353	>	if [[ "x$ac_cv_gcc_mdynamic_no_pic" = "xyes" ]]; then
1354	>	CXXFLAGS="$CXXFLAGS -mdynamic-no-pic"
1355	>	else
1356	>	CFLAGS="$SAVED_CFLAGS"
1357	>	fi
1358	>	fi
1359
1360		dnl CPU emulator sources
1361		if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1362		CPUSRCS="\
1363	+	../kpx_cpu/src/mathlib/ieeefp.cpp \
1364	+	../kpx_cpu/src/mathlib/mathlib.cpp \
1365		../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
1366		../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
1367		../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
1368	<	../kpx_cpu/src/cpu/ppc/ppc-translate.cpp"
1368	>	../kpx_cpu/src/cpu/ppc/ppc-translate.cpp \
1369	>	../kpx_cpu/src/utils/utils-cpuinfo.cpp"
1370		CPPFLAGS="$CPPFLAGS -I../kpx_cpu/include -I../kpx_cpu/src"
1371
1372		dnl Enable JIT compiler, if possible
1373		if [[ "x$WANT_JIT" = "xyes" ]]; then
1374		AC_CACHE_CHECK([whether dyngen can be used],
1375		ac_cv_use_dyngen, [
1376	<	case $host_cpu:$ELF_OBJECTS in
1377	<	powerpc:yes)
1376	>	case $host_cpu:$ac_cv_object_format in
1377	>	powerpc:elf)
1378	>	ac_cv_use_dyngen=yes
1379	>	;;
1380	>	x86_64:elf)
1381	>	ac_cv_use_dyngen=yes
1382	>	;;
1383	>	i?86:elf)
1384		ac_cv_use_dyngen=yes
1385		;;
1386	<	x86_64:yes)
1386	>	mips:elf)
1387		ac_cv_use_dyngen=yes
1388		;;
1389	<	i?86:yes)
1389	>	powerpc:mach)
1390	>	ac_cv_use_dyngen=yes
1391	>	;;
1392	>	i?86:mach)
1393		ac_cv_use_dyngen=yes
1394		;;
1395		*:*)
#	Line 816 | Line 1401 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1401		if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1402		DYNGEN_CC=$CXX
1403		else
1404	<	for p in /usr/bin /usr/local/bin; do
1404	>	for p in /usr/bin /usr/local/bin /usr/freeware/bin; do
1405		gxx="$p/g++"
1406		if [[ -x "$gxx" ]]; then
1407		DYNGEN_CC="$gxx"
#	Line 824 | Line 1409 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1409		done
1410		fi
1411		fi
1412	<	if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include <limits>' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then
1412	>	if [[ -z "$DYNGEN_CC" ]]; then
1413		ac_cv_use_dyngen=no
1414		fi
1415		])
1416		if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
1417		case $host_cpu in
1418		i?86)
1419	<	DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
835	<	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
836	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
837	<	else
838	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
839	<	fi
840	<	saved_CPPFLAGS=$CPPFLAGS
841	<	CPPFLAGS="$CPPFLAGS -mmmx"
842	<	AC_CHECK_HEADERS(mmintrin.h,  [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -mmmx"])
843	<	CPPFLAGS="$CPPFLAGS -msse"
844	<	AC_CHECK_HEADERS(xmmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse"])
845	<	CPPFLAGS="$CPPFLAGS -msse2"
846	<	AC_CHECK_HEADERS(emmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse2"])
847	<	CPPFLAGS=$saved_CPPFLAGS
1419	>	DYNGEN_OP_FLAGS="-fomit-frame-pointer"
1420		;;
1421	<	x86_64)
1422	<	AC_CHECK_HEADERS(mmintrin.h xmmintrin.h emmintrin.h)
1421	>	mips)
1422	>	DYNGEN_OP_FLAGS="-fno-delayed-branch -mno-abicalls"
1423	>	;;
1424	>	powerpc)
1425	>	if [[ "x$ac_cv_object_format" = "xmach" ]]; then
1426	>	DYNGEN_OP_FLAGS="-mdynamic-no-pic"
1427	>	fi
1428		;;
1429		esac
1430	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000"
1431	<	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1430	>	have_dyngen_gcc3=no
1431	>	case "x`$DYNGEN_CC -dumpversion`" in
1432	>	x[12].*) ;;
1433	>	x*) have_dyngen_gcc3=yes ;;
1434	>	esac
1435	>	if [[ "x$have_dyngen_gcc3" = "xyes" ]]; then
1436	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-align-functions"
1437	>	else
1438	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1439	>	fi
1440	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-functions -finline-limit=10000 -fno-exceptions -g0"
1441	>	if [[ "x$have_dyngen_gcc3" = "xyes" ]]; then
1442		DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
1443		fi
1444	+	if [[ "x$DYNGEN_CC" != "x$CXX" ]]; then
1445	+	DYNGEN_CFLAGS="-O2 $CFLAGS"
1446	+	DYNGEN_CXXFLAGS="-O2 $CXXFLAGS"
1447	+	else
1448	+	DYNGEN_CFLAGS="\$(CFLAGS)"
1449	+	DYNGEN_CXXFLAGS="\$(CXXFLAGS)"
1450	+	fi
1451		else
1452		WANT_JIT=no
1453		fi
#	Line 865 | Line 1459 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1459		CPUSRCS="\
1460		../kpx_cpu/src/cpu/jit/jit-cache.cpp \
1461		../kpx_cpu/src/cpu/jit/basic-dyngen.cpp \
1462	<	../kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp $CPUSRCS"
1462	>	../kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp \
1463	>	../kpx_cpu/src/cpu/ppc/ppc-jit.cpp $CPUSRCS"
1464		fi
1465		fi
1466		CPUSRCS="$CPUSRCS ../kpx_cpu/sheepshaver_glue.cpp"
1467		else
1468		WANT_JIT=no
1469		fi
875	–	if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
876	–	AC_CACHE_CHECK([whether static data regions are executable],
877	–	ac_cv_have_static_data_exec, [
878	–	AC_TRY_RUN([int main(void) {
879	–	#if defined(__powerpc__)
880	–	static unsigned int p[8] = {0x4e800020,};
881	–	asm volatile("dcbst 0,%0" : : "r" (p) : "memory");
882	–	asm volatile("sync" : : : "memory");
883	–	asm volatile("icbi 0,%0" : : "r" (p) : "memory");
884	–	asm volatile("sync" : : : "memory");
885	–	asm volatile("isync" : : : "memory");
886	–	((void (*)(void))p)();
887	–	return 0;
888	–	#endif
889	–	return 1;
890	–	}], ac_cv_have_static_data_exec=yes, ac_cv_have_static_data_exec=no,
891	–	dnl When cross-compiling, do not assume anything.
892	–	ac_cv_have_static_data_exec=no
893	–	)
894	–	])
895	–	fi
896	–	AC_TRANSLATE_DEFINE(HAVE_STATIC_DATA_EXEC, "$ac_cv_have_static_data_exec",
897	–	[Define if your system marks static data pages as executable.])
898	–
1470		if [[ "x$WANT_JIT" = "xyes" ]]; then
1471		CPPFLAGS="$CPPFLAGS -DUSE_JIT"
1472		fi
1473
1474	+	dnl Higher level optimizations with MIPSPro compilers are possible
1475	+	if [[ "x$HAVE_IPA" = "xyes" ]]; then
1476	+	CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1477	+	CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1478	+	CXXFLAGS="-LANG:std $CXXFLAGS"
1479	+	LDFLAGS="$LDFLAGS -O3 -OPT:Olimit=0 -IPA"
1480	+	fi
1481	+
1482	+	dnl Check for linker script support
1483	+	case $target_os:$target_cpu in
1484	+	linux*:i?86)    LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";;
1485	+	linux*:x86_64)  LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-x86_64.ld";;
1486	+	linux*:powerpc) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-ppc.ld";;
1487	+	netbsd*:i?86)   LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";;
1488	+	freebsd*:i?86)  LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/freebsd-i386.ld";;
1489	+	darwin*:*)      LINKER_SCRIPT_FLAGS="-Wl,-seg1addr,0x78048000";;
1490	+	esac
1491	+	if [[ -n "$LINKER_SCRIPT_FLAGS" ]]; then
1492	+	AC_CACHE_CHECK([whether linker script is usable],
1493	+	ac_cv_linker_script_works, [
1494	+	AC_LANG_SAVE
1495	+	AC_LANG_CPLUSPLUS
1496	+	saved_LDFLAGS="$LDFLAGS"
1497	+	LDFLAGS="$LDFLAGS $LINKER_SCRIPT_FLAGS"
1498	+	AC_TRY_RUN(
1499	+	[int main() {if ((char *)&main < (char *)0x70000000) return 1;}],
1500	+	[ac_cv_linker_script_works=yes],
1501	+	[ac_cv_linker_script_works=no],
1502	+	dnl When cross-compiling, assume it works
1503	+	[ac_cv_linker_script_works="guessing yes"]
1504	+	)
1505	+	AC_LANG_RESTORE
1506	+	if [[ "$ac_cv_linker_script_works" = "no" ]]; then
1507	+	LDFLAGS="$saved_LDFLAGS"
1508	+	LINKER_SCRIPT_FLAGS=""
1509	+	fi
1510	+	])
1511	+	fi
1512	+	AC_TRANSLATE_DEFINE(HAVE_LINKER_SCRIPT, "$ac_cv_linker_script_works",
1513	+	[Define if there is a linker script to relocate the executable above 0x70000000.])
1514	+
1515		dnl Generate Makefile.
1516	+	AC_SUBST(PERL)
1517	+	AC_SUBST(USE_DYNGEN, [$ac_cv_use_dyngen])
1518		AC_SUBST(DYNGENSRCS)
1519		AC_SUBST(DYNGEN_CC)
1520	+	AC_SUBST(DYNGEN_CFLAGS)
1521	+	AC_SUBST(DYNGEN_CXXFLAGS)
1522		AC_SUBST(DYNGEN_OP_FLAGS)
1523		AC_SUBST(SYSSRCS)
1524		AC_SUBST(CPUSRCS)
1525		AC_SUBST(BLESS)
1526		AC_SUBST(KEYCODES)
1527	<	AC_OUTPUT(Makefile)
1527	>	AC_OUTPUT([
1528	>	Makefile
1529	>	../MacOSX/Info.plist
1530	>	])
1531
1532		dnl Print summary.
1533		echo
1534		echo SheepShaver configuration summary:
1535		echo
1536		echo SDL support ...................... : $SDL_SUPPORT
1537	+	echo FBDev DGA support ................ : $WANT_FBDEV_DGA
1538		echo XFree86 DGA support .............. : $WANT_XF86_DGA
1539		echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
1540		echo Using PowerPC emulator ........... : $EMULATED_PPC
#	Line 923 | Line 1543 | echo Enable video on SEGV signals .....
1543		echo ESD sound support ................ : $WANT_ESD
1544		echo GTK user interface ............... : $WANT_GTK
1545		echo mon debugger support ............. : $WANT_MON
1546	+	echo Addressing mode .................. : $WANT_ADDRESSING_MODE
1547		echo Bad memory access recovery type .. : $sigsegv_recovery
1548		echo
1549		echo "Configuration done. Now type \"make\"."

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