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

Comparing SheepShaver/src/Unix/configure.ac (file contents):
Revision 1.20 by gbeauche, 2005-03-19T09:59:30Z vs.
Revision 1.53 by gbeauche, 2006-07-06T00:07:47Z

#	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]],
34		[case "$withval" in
#	Line 117 | Line 126 | AC_SUBST(MONSRCS)
126
127		dnl Checks for libraries.
128		AC_CHECK_LIB(posix4, sem_init)
129	+	AC_CHECK_LIB(m, cos)
130
131		dnl Do we need SDL?
132		WANT_SDL=no
#	Line 134 | Line 144 | fi
144		if [[ "x$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`$sdl_config --exec-prefix`/lib -lSDL"
152	<	;;
143	<	*)
144	<	sdl_cflags=`$sdl_config --cflags`
145	<	if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
146	<	sdl_libs=`$sdl_config --static-libs`
147	<	else
148	<	sdl_libs=`$sdl_config --libs`
149	<	fi
150	<	;;
151	<	esac
147	>	sdl_cflags=`$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 $sdl_libs"
#	Line 184 | Line 185 | no:linux*|no:netbsd*)
185		AC_CHECK_LIB(pthread, pthread_create, , [
186		AC_CHECK_LIB(c_r, pthread_create, , [
187		AC_CHECK_LIB(PTL, pthread_create, , [
188	<	AC_MSG_ERROR([You need pthreads to run Basilisk II.])
188	>	dnl XXX remove when no pthreads case is merged
189	>	AC_MSG_ERROR([You need pthreads to run SheepShaver.])
190	>	HAVE_PTHREADS=no
191		])
192		])
193		])
194		AC_CHECK_FUNCS(pthread_cancel)
195	+	AC_CHECK_FUNCS(pthread_cond_init pthread_testcancel)
196		AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
197		AC_CHECK_FUNCS(pthread_mutexattr_settype)
198		AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
195	–	if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
196	–	AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
197	–	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 204 | Line 205 | no:linux*|no:netbsd*)
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$WANT_XF86_DGA" = "xyes" ]]; then
#	Line 232 | Line 246 | UISRCS=../dummy/prefs_editor_dummy.cpp
246		case "x$WANT_GTK" in
247		xgtk2*)
248		AM_PATH_GTK_2_0(1.3.15, [
249	<	AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
250	<	CFLAGS="$CFLAGS $GTK_CFLAGS"
237	<	CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
238	<	LIBS="$LIBS $GTK_LIBS"
239	<	UISRCS=prefs_editor_gtk.cpp
249	>	GUI_CFLAGS="$GTK_CFLAGS"
250	>	GUI_LIBS="$GTK_LIBS"
251		WANT_GTK=gtk2
252		], [
253		case "x${WANT_GTK}x" in
#	Line 254 | Line 265 | xgtk2*)
265		esac
266		if [[ "x$WANT_GTK" = "xgtk" ]]; then
267		AM_PATH_GTK(1.2.0, [
268	<	AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
269	<	CFLAGS="$CFLAGS $GTK_CFLAGS"
259	<	CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
260	<	LIBS="$LIBS $GTK_LIBS"
261	<	UISRCS=prefs_editor_gtk.cpp
268	>	GUI_CFLAGS="$GTK_CFLAGS"
269	>	GUI_LIBS="$GTK_LIBS"
270		], [
271		AC_MSG_WARN([Could not find GTK+, disabling user interface.])
272		WANT_GTK=no
273		])
274		fi
275	+	if [[ "x$WANT_GTK" != "xno" -a "x$WANT_STANDALONE_GUI" = "xno" ]]; then
276	+	AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
277	+	UISRCS=prefs_editor_gtk.cpp
278	+	fi
279	+	AC_SUBST(GUI_CFLAGS)
280	+	AC_SUBST(GUI_LIBS)
281	+
282	+	dnl Build external GUI if requested.
283	+	if [[ "$WANT_STANDALONE_GUI" != "yes" ]]; then
284	+	WANT_STANDALONE_GUI=no
285	+	fi
286	+	if [[ "$WANT_GTK" = "no" ]]; then
287	+	WANT_STANDALONE_GUI=no
288	+	fi
289	+	AC_SUBST(STANDALONE_GUI, [$WANT_STANDALONE_GUI])
290
291		dnl We use ESD if possible.
292		if [[ "x$WANT_ESD" = "xyes" ]]; then
#	Line 284 | Line 307 | AC_SYS_LARGEFILE
307		dnl Checks for header files.
308		AC_HEADER_STDC
309		AC_HEADER_SYS_WAIT
310	<	AC_CHECK_HEADERS(malloc.h)
310	>	AC_CHECK_HEADERS(malloc.h stdint.h)
311		AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h)
289	–	AC_CHECK_HEADERS(sys/time.h sys/times.h sys/socket.h)
312		AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h dirent.h)
313	<	AC_CHECK_HEADERS(linux/if.h, [], [], [
314	<	#if HAVE_SYS_SOCKET_H
315	<	# include <sys/socket.h>
313	>	AC_CHECK_HEADERS(sys/socket.h sys/ioctl.h sys/filio.h sys/bitypes.h sys/wait.h)
314	>	AC_CHECK_HEADERS(sys/time.h sys/poll.h sys/select.h arpa/inet.h)
315	>	AC_CHECK_HEADERS(linux/if.h linux/if_tun.h net/if.h net/if_tun.h, [], [], [
316	>	#ifdef HAVE_SYS_TYPES_H
317	>	#include <sys/types.h>
318	>	#endif
319	>	#ifdef HAVE_SYS_SOCKET_H
320	>	#include <sys/socket.h>
321		#endif
322		])
323	<	AC_CHECK_HEADERS(linux/if_tun.h net/if.h net/if_tun.h)
323	>	AC_CHECK_HEADERS(AvailabilityMacros.h)
324	>	AC_CHECK_HEADERS(IOKit/storage/IOBlockStorageDevice.h)
325		AC_CHECK_HEADERS(fenv.h)
326
327		dnl Checks for typedefs, structures, and compiler characteristics.
#	Line 314 | Line 342 | AC_TYPE_SIGNAL
342		AC_HEADER_TIME
343		AC_STRUCT_TM
344
345	+	dnl Check whether sys/socket.h defines type socklen_t.
346	+	dnl (extracted from ac-archive/Miscellaneous)
347	+	AC_CACHE_CHECK([for socklen_t],
348	+	ac_cv_type_socklen_t, [
349	+	AC_TRY_COMPILE([
350	+	#include <sys/types.h>
351	+	#include <sys/socket.h>
352	+	], [socklen_t len = 42; return 0;],
353	+	ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
354	+	dnl When cross-compiling, do not assume anything.
355	+	ac_cv_type_socklen_t="guessing no"
356	+	)
357	+	])
358	+	if [[ "x$ac_cv_type_socklen_t" != "xyes" ]]; then
359	+	AC_DEFINE(socklen_t, int, [Define to 'int' if <sys/types.h> doesn't define.])
360	+	fi
361	+
362		dnl Check whether struct sigaction has sa_restorer member.
363		AC_CACHE_CHECK([whether struct sigaction has sa_restorer],
364		ac_cv_signal_sa_restorer, [
#	Line 330 | Line 375 | if [[ "x$ac_cv_signal_sa_restorer" = "xy
375		fi
376
377		dnl Checks for library functions.
378	<	AC_CHECK_FUNCS(strdup strlcpy cfmakeraw)
378	>	AC_CHECK_FUNCS(strdup strerror strlcpy cfmakeraw)
379		AC_CHECK_FUNCS(nanosleep)
380		AC_CHECK_FUNCS(sigaction signal)
381		AC_CHECK_FUNCS(mmap mprotect munmap)
382		AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
383	<	AC_CHECK_FUNCS(posix_memalign memalign valloc)
384	<	AC_CHECK_FUNCS(exp2f log2f exp2 log2 trunc)
383	>	AC_CHECK_FUNCS(exp2f log2f exp2 log2)
384	>	AC_CHECK_FUNCS(floorf roundf ceilf truncf floor round ceil trunc)
385	>	AC_CHECK_FUNCS(poll inet_aton)
386
387		dnl Darwin seems to define mach_task_self() instead of task_self().
388		AC_CHECK_FUNCS(mach_task_self task_self)
#	Line 396 | Line 442 | AC_CHECK_FILE([/dev/ptc],
442		)
443		dnl (end of code from openssh-3.2.2p1 configure.ac)
444
445	+	dnl Check for systems where POSIX-style non-blocking I/O (O_NONBLOCK)
446	+	dnl doesn't work or is unimplemented. On these systems (mostly older
447	+	dnl ones), use the old BSD-style FIONBIO approach instead. [tcl.m4]
448	+	AC_CACHE_CHECK([FIONBIO vs. O_NONBLOCK for non-blocking I/O],
449	+	ac_cv_nonblocking_io, [
450	+	case "$host" in
451	+	*-*-osf*)
452	+	ac_cv_nonblocking_io=FIONBIO
453	+	;;
454	+	*-*-sunos4*)
455	+	ac_cv_nonblocking_io=FIONBIO
456	+	;;
457	+	*-*-ultrix*)
458	+	ac_cv_nonblocking_io=FIONBIO
459	+	;;
460	+	*)
461	+	ac_cv_nonblocking_io=O_NONBLOCK
462	+	;;
463	+	esac
464	+	])
465	+	if [[ "$ac_cv_nonblocking_io" = "FIONBIO" ]]; then
466	+	AC_DEFINE(USE_FIONBIO, 1, [Define if BSD-style non-blocking I/O is to be used])
467	+	fi
468	+
469	+	dnl Check whether compiler supports byte bit-fields
470	+	AC_CACHE_CHECK([whether compiler supports byte bit-fields],
471	+	ac_cv_have_byte_bitfields, [
472	+	AC_LANG_SAVE
473	+	AC_LANG_CPLUSPLUS
474	+	AC_TRY_RUN([
475	+	struct A {
476	+	unsigned char b1:4;
477	+	unsigned char b2:4;
478	+	unsigned char c;
479	+	unsigned short s;
480	+	unsigned char a[4];
481	+	};
482	+
483	+	int main(void) {
484	+	A a;
485	+	return ! (sizeof(A) == 8 && &a.c == ((unsigned char *)&a + 1));
486	+	}],
487	+	[ac_cv_have_byte_bitfields=yes],
488	+	[ac_cv_have_byte_bitfields=no],
489	+	dnl When cross-compiling, assume only GCC supports this
490	+	[if [[ "$GCC" = "yes" ]]; then
491	+	ac_cv_have_byte_bitfields="guessing yes"
492	+	else
493	+	ac_cv_have_byte_bitfields="guessing no"
494	+	fi]
495	+	)
496	+	AC_LANG_RESTORE
497	+	])
498	+
499		dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES)
500	<	AC_DEFUN(AC_CHECK_FRAMEWORK, [
500	>	AC_DEFUN([AC_CHECK_FRAMEWORK], [
501		AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl
502		AC_CACHE_CHECK([whether compiler supports framework $1],
503		ac_Framework, [
504		saved_LIBS="$LIBS"
505		LIBS="$LIBS -framework $1"
506		AC_TRY_LINK(
507	<	[$2], [int main(void) { return 0; }],
507	>	[$2], [],
508		[AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"]
509		)
510		])
#	Line 417 | Line 517 | AC_DEFUN(AC_CHECK_FRAMEWORK, [
517		dnl Check for some MacOS X frameworks
518		AC_CHECK_FRAMEWORK(Carbon, [#include <Carbon/Carbon.h>])
519		AC_CHECK_FRAMEWORK(IOKit, [#include <IOKit/IOKitLib.h>])
520	+	AC_CHECK_FRAMEWORK(CoreFoundation, [#include <CoreFoundation/CoreFoundation.h>])
521
522		dnl Select system-dependant sources.
523		SERIALSRC=serial_unix.cpp
#	Line 427 | Line 528 | EXTFSSRC=extfs_unix.cpp
528		EXTRASYSSRCS=
529		case "$target_os" in
530		linux*)
531	<	ETHERSRC=Linux/ether_linux.cpp
531	>	ETHERSRC=ether_unix.cpp
532		AUDIOSRC=audio_oss_esd.cpp
533		SCSISRC=Linux/scsi_linux.cpp
534		if [[ "x$EMULATED_PPC" = "xno" ]]; then
535	<	EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c ppc_asm.S"
535	>	EXTRASYSSRCS="paranoia.cpp Linux/sheepthreads.c ppc_asm.S"
536		fi
537		;;
538	+	freebsd*)
539	+	ETHERSRC=ether_unix.cpp
540	+	;;
541		netbsd*)
542	+	ETHERSRC=ether_unix.cpp
543		if [[ "x$EMULATED_PPC" = "xno" ]]; then
544	<	EXTRASYSSRCS="NetBSD/paranoia.cpp NetBSD/sheepthreads.c ppc_asm.S"
544	>	EXTRASYSSRCS="paranoia.cpp NetBSD/sheepthreads.c ppc_asm.S"
545		fi
546		;;
547		darwin*)
548	+	ETHERSRC=ether_unix.cpp
549		if [[ "x$EMULATED_PPC" = "xno" ]]; then
550	<	EXTRASYSSRCS="Darwin/paranoia.cpp ppc_asm.S"
550	>	EXTRASYSSRCS="paranoia.cpp ppc_asm.S"
551		fi
552	<	if [[ "x$ac_cv_framework_IOKit" = "xyes" ]]; then
552	>	if [[ "x$ac_cv_framework_IOKit" = "xyes" -a "x$ac_cv_framework_CoreFoundation" = "xyes" ]]; then
553		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/sys_darwin.cpp"
554		fi
555		if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
556		EXTFSSRC=../MacOSX/extfs_macosx.mm
557		fi
558		;;
559	<	cygwin*)
560	<	SERIALSRC="../dummy/serial_dummy.cpp"
559	>	irix*)
560	>	AUDIOSRC=Irix/audio_irix.cpp
561	>	LIBS="$LIBS -laudio"
562	>	WANT_ESD=no
563	>
564	>	dnl Check if our compiler supports -IPA (MIPSPro)
565	>	HAVE_IPA=no
566	>	ocflags="$CFLAGS"
567	>	CFLAGS=`echo " $CFLAGS -IPA" | sed -e "s/ -g //g"`
568	>	AC_MSG_CHECKING(if "-IPA" works)
569	>	dnl Do a test compile of an empty function
570	>	AC_TRY_COMPILE([#if defined __GNUC__
571	>	# error GCC does not support IPA yet
572	>	#endif],, [AC_MSG_RESULT(yes); HAVE_IPA=yes], AC_MSG_RESULT(no))
573	>	CFLAGS="$ocflags"
574		;;
575		esac
576
577	+	dnl Is the slirp library supported?
578	+	case "$ac_cv_have_byte_bitfields" in
579	+	yes|"guessing yes")
580	+	CAN_SLIRP=yes
581	+	ETHERSRC=ether_unix.cpp
582	+	;;
583	+	esac
584	+	if [[ -n "$CAN_SLIRP" ]]; then
585	+	AC_DEFINE(HAVE_SLIRP, 1, [Define if slirp library is supported])
586	+	SLIRP_SRCS="\
587	+	../slirp/bootp.c     ../slirp/ip_output.c  ../slirp/tcp_input.c  \
588	+	../slirp/cksum.c     ../slirp/mbuf.c       ../slirp/tcp_output.c \
589	+	../slirp/debug.c     ../slirp/misc.c       ../slirp/tcp_subr.c   \
590	+	../slirp/if.c        ../slirp/sbuf.c       ../slirp/tcp_timer.c  \
591	+	../slirp/ip_icmp.c   ../slirp/slirp.c      ../slirp/tftp.c       \
592	+	../slirp/ip_input.c  ../slirp/socket.c     ../slirp/udp.c"
593	+	fi
594	+	AC_SUBST(SLIRP_SRCS)
595	+
596		dnl SDL overrides
597		if [[ "x$WANT_SDL" = "xyes" ]]; then
598		AC_DEFINE(USE_SDL, 1, [Define to enble SDL support.])
#	Line 466 | Line 604 | if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; th
604		if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
605		EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
606		else
607	<	case "$target_os" in
470	<	cygwin*)
471	<	EXTRASYSSRCS="$EXTRASYSSRCS ../Windows/clip_windows.cpp"
472	<	;;
473	<	*)
474	<	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
475	<	;;
476	<	esac
607	>	EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
608		fi
609		else
610		VIDEOSRCS="video_x.cpp"
#	Line 492 | Line 623 | dnl to be put into the config.h file
623		dnl $1 -- the macro to define
624		dnl $2 -- the value to translate
625		dnl $3 -- template name
626	<	AC_DEFUN(AC_TRANSLATE_DEFINE, [
626	>	AC_DEFUN([AC_TRANSLATE_DEFINE], [
627		if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
628		AC_DEFINE($1, 1, $3)
629		fi
#	Line 901 | Line 1032 | fi
1032
1033		dnl Check addressing mode to use
1034		AC_MSG_CHECKING([for addressing mode to use])
904	–	case "$os_target" in
905	–	cygwin*)
906	–	WANT_ADDRESSING_MODE="direct,cygwin-hack"
907	–	NATMEM_OFFSET=
908	–	;;
909	–	esac
1035		if [[ "$EMULATED_PPC" != "yes" ]]; then
1036		if [[ "$WANT_ADDRESSING_MODE" != "real" ]]; then
1037		AC_MSG_WARN([Running in native PowerPC mode, force use of Real Addressing.])
#	Line 988 | Line 1113 | EOF
1113		fi
1114		AC_MSG_RESULT($WANT_ADDRESSING_MODE)
1115
1116	+	dnl Utility macro used by next two tests.
1117	+	dnl AC_EXAMINE_OBJECT(C source code,
1118	+	dnl     commands examining object file,
1119	+	dnl     [commands to run if compile failed]):
1120	+	dnl
1121	+	dnl Compile the source code to an object file; then convert it into a
1122	+	dnl printable representation.  All unprintable characters and
1123	+	dnl asterisks (*) are replaced by dots (.).  All white space is
1124	+	dnl deleted.  Newlines (ASCII 0x10) in the input are preserved in the
1125	+	dnl output, but runs of newlines are compressed to a single newline.
1126	+	dnl Finally, line breaks are forcibly inserted so that no line is
1127	+	dnl longer than 80 columns and the file ends with a newline.  The
1128	+	dnl result of all this processing is in the file conftest.dmp, which
1129	+	dnl may be examined by the commands in the second argument.
1130	+	dnl
1131	+	AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
1132	+	[AC_LANG_SAVE
1133	+	AC_LANG_C
1134	+	dnl Next bit cribbed from AC_TRY_COMPILE.
1135	+	cat > conftest.$ac_ext <<EOF
1136	+	[#line __oline__ "configure"
1137	+	#include "confdefs.h"
1138	+	$1
1139	+	]EOF
1140	+	if AC_TRY_EVAL(ac_compile); then
1141	+	od -c conftest.o |
1142	+	sed ['s/^[0-7]*[    ]*/ /
1143	+	s/\*/./g
1144	+	s/ \\n/*/g
1145	+	s/ [0-9][0-9][0-9]/./g
1146	+	s/  \\[^ ]/./g'] |
1147	+	tr -d '
1148	+	' | tr -s '*' '
1149	+	' | fold | sed '$a\
1150	+	' > conftest.dmp
1151	+	$2
1152	+	ifelse($3, , , else
1153	+	$3
1154	+	)dnl
1155	+	fi
1156	+	rm -rf conftest*
1157	+	AC_LANG_RESTORE])
1158	+
1159	+	dnl Floating point format probe.
1160	+	dnl The basic concept is the same as the above: grep the object
1161	+	dnl file for an interesting string.  We have to watch out for
1162	+	dnl rounding changing the values in the object, however; this is
1163	+	dnl handled by ignoring the least significant byte of the float.
1164	+	dnl
1165	+	dnl Does not know about VAX G-float or C4x idiosyncratic format.
1166	+	dnl It does know about PDP-10 idiosyncratic format, but this is
1167	+	dnl not presently supported by GCC.  S/390 "binary floating point"
1168	+	dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
1169	+	dnl as ASCII?)
1170	+	dnl
1171	+	AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
1172	+	[AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
1173	+	[gcc_AC_EXAMINE_OBJECT(
1174	+	[/* This will not work unless sizeof(double) == 8.  */
1175	+	extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
1176	+
1177	+	/* This structure must have no internal padding.  */
1178	+	struct possibility {
1179	+	char prefix[8];
1180	+	double candidate;
1181	+	char postfix[8];
1182	+	};
1183	+
1184	+	#define C(cand) { "\nformat:", cand, ":tamrof\n" }
1185	+	struct possibility table [] =
1186	+	{
1187	+	C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
1188	+	C( 3.53802595280598432000e+18), /* D__float - VAX */
1189	+	C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
1190	+	C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
1191	+	C(-5.22995989424860458374e+10)  /* IBMHEXFP - s/390 format, EBCDIC */
1192	+	};],
1193	+	[if   grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1194	+	ac_cv_c_float_format='IEEE (big-endian)'
1195	+	elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
1196	+	ac_cv_c_float_format='IEEE (big-endian)'
1197	+	elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
1198	+	ac_cv_c_float_format='IEEE (little-endian)'
1199	+	elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
1200	+	ac_cv_c_float_format='IEEE (little-endian)'
1201	+	elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
1202	+	ac_cv_c_float_format='VAX D-float'
1203	+	elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
1204	+	ac_cv_c_float_format='PDP-10'
1205	+	elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
1206	+	ac_cv_c_float_format='IBM 370 hex'
1207	+	else
1208	+	AC_MSG_ERROR(Unknown floating point format)
1209	+	fi],
1210	+	[AC_MSG_ERROR(compile failed)])
1211	+	])
1212	+	# IEEE is the default format.  If the float endianness isn't the same
1213	+	# as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
1214	+	# (which is a tristate: yes, no, default).  This is only an issue with
1215	+	# IEEE; the other formats are only supported by a few machines each,
1216	+	# all with the same endianness.
1217	+	format=IEEE_FLOAT_FORMAT
1218	+	fbigend=
1219	+	case $ac_cv_c_float_format in
1220	+	'IEEE (big-endian)' )
1221	+	if test $ac_cv_c_bigendian = no; then
1222	+	fbigend=1
1223	+	fi
1224	+	;;
1225	+	'IEEE (little-endian)' )
1226	+	if test $ac_cv_c_bigendian = yes; then
1227	+	fbigend=0
1228	+	fi
1229	+	;;
1230	+	'VAX D-float' )
1231	+	format=VAX_FLOAT_FORMAT
1232	+	;;
1233	+	'PDP-10' )
1234	+	format=PDP10_FLOAT_FORMAT
1235	+	;;
1236	+	'IBM 370 hex' )
1237	+	format=IBM_FLOAT_FORMAT
1238	+	;;
1239	+	esac
1240	+	AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
1241	+	[Define to the floating point format of the host machine.])
1242	+	if test -n "$fbigend"; then
1243	+	AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
1244	+	[Define to 1 if the host machine stores floating point numbers in
1245	+	memory with the word containing the sign bit at the lowest address,
1246	+	or to 0 if it does it the other way around.
1247	+
1248	+	This macro should not be defined if the ordering is the same as for
1249	+	multi-word integers.])
1250	+	fi
1251	+	])
1252	+
1253	+	dnl Check for host float format
1254	+	gcc_AC_C_FLOAT_FORMAT
1255	+
1256		dnl Platform specific binary postprocessor
1257		AC_PATH_PROG(BLESS, "true")
1258		if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
#	Line 998 | Line 1263 | fi
1263		dnl Check for GCC 2.7 or higher.
1264		HAVE_GCC27=no
1265		AC_MSG_CHECKING(for GCC 2.7 or higher)
1266	<	AC_EGREP_CPP(xyes,
1267	<	[#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
1268	<	xyes
1269	<	#endif
1270	<	], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
1266	>	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5)
1267	>	# error gcc < 2.7
1268	>	typedef syntax error;
1269	>	#endif
1270	>	]])],
1271	>	[AC_MSG_RESULT(yes); HAVE_GCC27=yes],
1272	>	[AC_MSG_RESULT(no)])
1273
1274		dnl Check for GCC 3.0 or higher.
1275		HAVE_GCC30=no
1276		AC_MSG_CHECKING(for GCC 3.0 or higher)
1277	<	AC_EGREP_CPP(xyes,
1278	<	[#if __GNUC__ >= 3
1279	<	xyes
1280	<	#endif
1281	<	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
1277	>	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ >= 3)
1278	>	# error gcc < 3
1279	>	typedef syntax error;
1280	>	#endif
1281	>	]])],
1282	>	[AC_MSG_RESULT(yes); HAVE_GCC30=yes],
1283	>	[AC_MSG_RESULT(no)])
1284
1285		dnl Check for ICC.
1286		AC_MSG_CHECKING(for ICC)
#	Line 1022 | Line 1291 | fi
1291		AC_MSG_RESULT($HAVE_ICC)
1292
1293		dnl Determine the generated object format
1294	<	AC_CACHE_CHECK([whether the compiler can generate ELF objects],
1294	>	AC_CACHE_CHECK([the format of compiler generated objects],
1295		ac_cv_object_format, [
1296		echo 'int i;' > conftest.$ac_ext
1297		ac_cv_object_format=no
#	Line 1031 | Line 1300 | AC_CACHE_CHECK([whether the compiler can
1300		*"ELF"*)
1301		ac_cv_object_format=elf
1302		;;
1303	+	*"Mach-O"*)
1304	+	ac_cv_object_format=mach
1305	+	;;
1306		*)
1307		ac_cv_object_format=unknown
1308		;;
#	Line 1039 | Line 1311 | AC_CACHE_CHECK([whether the compiler can
1311		rm -rf conftest*
1312		])
1313
1314	+	dnl Add -fno-strict-aliasing for slirp sources
1315	+	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1316	+	SAVED_CFLAGS="$CFLAGS"
1317	+	CFLAGS="$CFLAGS -fno-strict-aliasing"
1318	+	AC_CACHE_CHECK([whether the compiler supports -fno-strict-aliasing],
1319	+	ac_cv_gcc_no_strict_aliasing, [
1320	+	AC_TRY_COMPILE([],[],
1321	+	[ac_cv_gcc_no_strict_aliasing=yes; AC_SUBST(SLIRP_CFLAGS, "-fno-strict-aliasing")],
1322	+	[ac_cv_gcc_no_strict_aliasing=no])
1323	+	])
1324	+	CFLAGS="$SAVED_CFLAGS"
1325	+	fi
1326	+
1327	+	dnl Add -mdynamic-no-pic for MacOS X (XXX icc10 will support MacOS X)
1328	+	if [[ "x$HAVE_GCC30" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1329	+	SAVED_CFLAGS="$CFLAGS"
1330	+	CFLAGS="$CFLAGS -mdynamic-no-pic"
1331	+	AC_CACHE_CHECK([whether the compiler supports -mdynamic-no-pic],
1332	+	ac_cv_gcc_mdynamic_no_pic, [
1333	+	AC_TRY_COMPILE([],[],[ac_cv_gcc_mdynamic_no_pic=yes],[ac_cv_gcc_mdynamic_no_pic=no])
1334	+	])
1335	+	if [[ "x$ac_cv_gcc_mdynamic_no_pic" = "xyes" ]]; then
1336	+	CXXFLAGS="$CXXFLAGS -mdynamic-no-pic"
1337	+	else
1338	+	CFLAGS="$SAVED_CFLAGS"
1339	+	fi
1340	+	fi
1341	+
1342		dnl CPU emulator sources
1343		if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1344		CPUSRCS="\
1345		../kpx_cpu/src/mathlib/ieeefp.cpp \
1346	+	../kpx_cpu/src/mathlib/mathlib.cpp \
1347		../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
1348		../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
1349		../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
#	Line 1063 | Line 1364 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1364		i?86:elf)
1365		ac_cv_use_dyngen=yes
1366		;;
1367	+	mips:elf)
1368	+	ac_cv_use_dyngen=yes
1369	+	;;
1370	+	powerpc:mach)
1371	+	ac_cv_use_dyngen=yes
1372	+	;;
1373	+	i?86:mach)
1374	+	ac_cv_use_dyngen=yes
1375	+	;;
1376		*:*)
1377		ac_cv_use_dyngen=no
1378		;;
#	Line 1072 | Line 1382 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1382		if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
1383		DYNGEN_CC=$CXX
1384		else
1385	<	for p in /usr/bin /usr/local/bin; do
1385	>	for p in /usr/bin /usr/local/bin /usr/freeware/bin; do
1386		gxx="$p/g++"
1387		if [[ -x "$gxx" ]]; then
1388		DYNGEN_CC="$gxx"
#	Line 1080 | Line 1390 | if [[ "x$EMULATED_PPC" = "xyes" ]]; then
1390		done
1391		fi
1392		fi
1393	<	if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include <limits>' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then
1393	>	if [[ -z "$DYNGEN_CC" ]]; then
1394		ac_cv_use_dyngen=no
1395		fi
1396		])
1397		if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
1398		case $host_cpu in
1399		i?86)
1400	<	DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
1401	<	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1402	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
1403	<	else
1404	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1400	>	DYNGEN_OP_FLAGS="-fomit-frame-pointer"
1401	>	;;
1402	>	mips)
1403	>	DYNGEN_OP_FLAGS="-fno-delayed-branch -mno-abicalls"
1404	>	;;
1405	>	powerpc)
1406	>	if [[ "x$ac_cv_object_format" = "xmach" ]]; then
1407	>	DYNGEN_OP_FLAGS="-mdynamic-no-pic"
1408		fi
1409		;;
1410		esac
1411	<	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000 -g0"
1412	<	if [[ "x$HAVE_GCC30" = "xyes" ]]; then
1411	>	have_dyngen_gcc3=no
1412	>	case "x`$DYNGEN_CC -dumpversion`" in
1413	>	x[12].*) ;;
1414	>	x*) have_dyngen_gcc3=yes ;;
1415	>	esac
1416	>	if [[ "x$have_dyngen_gcc3" = "xyes" ]]; then
1417	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-align-functions"
1418	>	else
1419	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
1420	>	fi
1421	>	DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-functions -finline-limit=10000 -fno-exceptions -g0"
1422	>	if [[ "x$have_dyngen_gcc3" = "xyes" ]]; then
1423		DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
1424		fi
1425	+	if [[ "x$DYNGEN_CC" != "x$CXX" ]]; then
1426	+	DYNGEN_CFLAGS="-O2 $CFLAGS"
1427	+	DYNGEN_CXXFLAGS="-O2 $CXXFLAGS"
1428	+	else
1429	+	DYNGEN_CFLAGS="\$(CFLAGS)"
1430	+	DYNGEN_CXXFLAGS="\$(CXXFLAGS)"
1431	+	fi
1432		else
1433		WANT_JIT=no
1434		fi
#	Line 1121 | Line 1451 | if [[ "x$ac_cv_use_dyngen" = "xyes" ]];
1451		AC_CACHE_CHECK([whether static data regions are executable],
1452		ac_cv_have_static_data_exec, [
1453		AC_TRY_RUN([int main(void) {
1454	<	#if defined(__powerpc__)
1454	>	#if defined(__powerpc__) || defined(__ppc__)
1455		static unsigned int p[8] = {0x4e800020,};
1456		asm volatile("dcbst 0,%0" : : "r" (p) : "memory");
1457		asm volatile("sync" : : : "memory");
#	Line 1147 | Line 1477 | if [[ "x$WANT_JIT" = "xyes" ]]; then
1477		CPPFLAGS="$CPPFLAGS -DUSE_JIT"
1478		fi
1479
1480	+	dnl Higher level optimizations with MIPSPro compilers are possible
1481	+	if [[ "x$HAVE_IPA" = "xyes" ]]; then
1482	+	CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1483	+	CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
1484	+	CXXFLAGS="-LANG:std $CXXFLAGS"
1485	+	LDFLAGS="$LDFLAGS -O3 -OPT:Olimit=0 -IPA"
1486	+	fi
1487	+
1488	+	dnl Check for linker script support
1489	+	case $target_os:$target_cpu in
1490	+	linux*:i?86)    LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";;
1491	+	linux*:x86_64)  LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-x86_64.ld";;
1492	+	linux*:powerpc) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-ppc.ld";;
1493	+	netbsd*:i?86)   LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";;
1494	+	freebsd*:i?86)  LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/freebsd-i386.ld";;
1495	+	darwin*:*)      LINKER_SCRIPT_FLAGS="-Wl,-seg1addr,0x78048000";;
1496	+	esac
1497	+	if [[ -n "$LINKER_SCRIPT_FLAGS" ]]; then
1498	+	AC_CACHE_CHECK([whether linker script is usable],
1499	+	ac_cv_linker_script_works, [
1500	+	AC_LANG_SAVE
1501	+	AC_LANG_CPLUSPLUS
1502	+	saved_LDFLAGS="$LDFLAGS"
1503	+	LDFLAGS="$LDFLAGS $LINKER_SCRIPT_FLAGS"
1504	+	AC_TRY_RUN(
1505	+	[int main() {if ((char *)&main < (char *)0x70000000) return 1;}],
1506	+	[ac_cv_linker_script_works=yes],
1507	+	[ac_cv_linker_script_works=no],
1508	+	dnl When cross-compiling, assume it works
1509	+	[ac_cv_linker_script_works="guessing yes"]
1510	+	)
1511	+	AC_LANG_RESTORE
1512	+	if [[ "$ac_cv_linker_script_works" = "no" ]]; then
1513	+	LDFLAGS="$saved_LDFLAGS"
1514	+	LINKER_SCRIPT_FLAGS=""
1515	+	fi
1516	+	])
1517	+	fi
1518	+	AC_TRANSLATE_DEFINE(HAVE_LINKER_SCRIPT, "$ac_cv_linker_script_works",
1519	+	[Define if there is a linker script to relocate the executable above 0x70000000.])
1520	+
1521		dnl Generate Makefile.
1522		AC_SUBST(PERL)
1523		AC_SUBST(USE_DYNGEN, [$ac_cv_use_dyngen])
1524		AC_SUBST(DYNGENSRCS)
1525		AC_SUBST(DYNGEN_CC)
1526	+	AC_SUBST(DYNGEN_CFLAGS)
1527	+	AC_SUBST(DYNGEN_CXXFLAGS)
1528		AC_SUBST(DYNGEN_OP_FLAGS)
1529		AC_SUBST(SYSSRCS)
1530		AC_SUBST(CPUSRCS)
#	Line 1167 | Line 1540 | echo
1540		echo SheepShaver configuration summary:
1541		echo
1542		echo SDL support ...................... : $SDL_SUPPORT
1543	+	echo FBDev DGA support ................ : $WANT_FBDEV_DGA
1544		echo XFree86 DGA support .............. : $WANT_XF86_DGA
1545		echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
1546		echo Using PowerPC emulator ........... : $EMULATED_PPC

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