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root/cebix/BasiliskII/src/Unix/configure.in

Comparing BasiliskII/src/Unix/configure.in (file contents):
Revision 1.21 by cebix, 2000-07-22T18:12:34Z vs.
Revision 1.63 by gbeauche, 2002-09-16T12:03:07Z

#	Line 1 | Line 1
1		dnl Process this file with autoconf to produce a configure script.
2	<	dnl Written in 1999 by Christian Bauer et al.
2	>	dnl Written in 2002 by Christian Bauer et al.
3
4		AC_INIT(main_unix.cpp)
5		AC_PREREQ(2.12)
#	Line 9 | Line 9 | dnl Options.
9		AC_ARG_ENABLE(xf86-dga,      [  --enable-xf86-dga       use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
10		AC_ARG_ENABLE(xf86-vidmode,  [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
11		AC_ARG_ENABLE(fbdev-dga,     [  --enable-fbdev-dga      use direct frame buffer access via /dev/fb [default=yes]], [WANT_FBDEV_DGA=$enableval], [WANT_FBDEV_DGA=yes])
12	+	AC_ARG_ENABLE(vosf,          [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
13	+
14	+	dnl FPU emulation core.
15	+	AC_ARG_ENABLE(fpe,
16	+	[  --enable-fpe=FPE        specify which fpu emulator to use [default=auto]],
17	+	[ case "$enableval" in
18	+	dnl default is always ieee, if architecture has this fp format
19	+	auto)       FPE_CORE_TEST_ORDER="ieee uae";;
20	+	ieee)       FPE_CORE_TEST_ORDER="ieee";;
21	+	uae)        FPE_CORE_TEST_ORDER="uae";;
22	+	x86)        FPE_CORE_TEST_ORDER="x86";;
23	+	*)              AC_MSG_ERROR([--enable-fpe takes only one of the following values: auto, x86, ieee, uae]);;
24	+	esac
25	+	],
26	+	[ FPE_CORE_TEST_ORDER="ieee uae"
27	+	])
28	+
29	+	dnl Addressing modes.
30	+	AC_ARG_ENABLE(addressing,
31	+	[  --enable-addressing=AM  specify the addressing mode to use [default=fastest]],
32	+	[ case "$enableval" in
33	+	real)       ADDRESSING_TEST_ORDER="real";;
34	+	direct)     ADDRESSING_TEST_ORDER="direct";;
35	+	banks)      ADDRESSING_TEST_ORDER="banks";;
36	+	fastest)ADDRESSING_TEST_ORDER="direct banks";;
37	+	*)          AC_MSG_ERROR([--enable-addressing takes only one of the following values: fastest, real, direct, banks]);;
38	+	esac
39	+	],
40	+	[ ADDRESSING_TEST_ORDER="direct banks"
41	+	])
42	+
43	+	dnl External packages.
44		AC_ARG_WITH(esd,             [  --with-esd              support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
45		AC_ARG_WITH(gtk,             [  --with-gtk              use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes])
46		AC_ARG_WITH(mon,             [  --with-mon              use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
47
48	+	dnl Canonical system information.
49	+	AC_CANONICAL_HOST
50	+	AC_CANONICAL_TARGET
51	+
52	+	dnl Target OS type (target is host if not cross-compiling).
53	+	case "$target_os" in
54	+	linux*)       OS_TYPE=linux;;
55	+	netbsd*)      OS_TYPE=netbsd;;
56	+	freebsd*)     OS_TYPE=freebsd;;
57	+	solaris*)     OS_TYPE=solaris;;
58	+	darwin*)      OS_TYPE=darwin;;
59	+	*)            OS_TYPE=`echo $target_os | sed -e 's/-/_/g' | sed -e 's/\./_/g'`;;
60	+	esac
61	+	DEFINES="$DEFINES -DOS_$OS_TYPE"
62	+
63	+	dnl Target CPU type.
64	+	HAVE_I386=no
65	+	HAVE_M68K=no
66	+	HAVE_SPARC=no
67	+	HAVE_POWERPC=no
68	+	case "$target_cpu" in
69	+	i386* | i486* | i586* | i686* | i786* ) CPU_TYPE=i386 HAVE_I386=yes;;
70	+	m68k* ) CPU_TYPE=m68k HAVE_M68K=yes;;
71	+	sparc* ) CPU_TYPE=sparc HAVE_SPARC=yes;;
72	+	powerpc* ) CPU_TYPE=powerpc HAVE_POWERPC=yes;;
73	+	*) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/g'`;;
74	+	esac
75	+	DEFINES="$DEFINES -DCPU_$CPU_TYPE"
76	+
77		dnl Checks for programs.
78		AC_PROG_CC
79	+	AC_PROG_CC_C_O
80		AC_PROG_CPP
81		AC_PROG_CXX
82		AC_PROG_MAKE_SET
83		AC_PROG_INSTALL
84
23	–	dnl Check for i386 target CPU.
24	–	HAVE_I386=no
25	–	AC_MSG_CHECKING(for x86 target CPU)
26	–	AC_EGREP_CPP(yes,
27	–	[
28	–	#ifdef __i386__
29	–	yes
30	–	#endif
31	–	], [AC_MSG_RESULT(yes); HAVE_I386=yes], AC_MSG_RESULT(no))
32	–
33	–	dnl Check for SPARC target CPU.
34	–	HAVE_SPARC=no
35	–	AC_MSG_CHECKING(for SPARC target CPU)
36	–	AC_EGREP_CPP(yes,
37	–	[
38	–	#ifdef __sparc__
39	–	yes
40	–	#endif
41	–	], [AC_MSG_RESULT(yes); HAVE_SPARC=yes], AC_MSG_RESULT(no))
42	–
43	–	dnl Check for m68k target CPU.
44	–	HAVE_M68K=no
45	–	AC_MSG_CHECKING(for m68k target CPU)
46	–	AC_EGREP_CPP(yes,
47	–	[
48	–	#ifdef __m68k__
49	–	yes
50	–	#endif
51	–	], [AC_MSG_RESULT(yes); HAVE_M68K=yes], AC_MSG_RESULT(no))
52	–
85		dnl We use mon if possible.
86		MONSRCS=
87		if [[ "x$WANT_MON" = "xyes" ]]; then
88		AC_MSG_CHECKING(for mon)
89	<	if grep mon_init ../../../mon/src/mon.h >/dev/null 2>/dev/null; then
89	>	mon_srcdir=../../../mon/src
90	>	if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
91		AC_MSG_RESULT(yes)
92		AC_DEFINE(ENABLE_MON)
93	<	MONSRCS="../../../mon/src/mon.cpp ../../../mon/src/mon_6502.cpp ../../../mon/src/mon_68k.cpp ../../../mon/src/mon_8080.cpp ../../../mon/src/mon_cmd.cpp ../../../mon/src/mon_ppc.cpp ../../../mon/src/mon_x86.cpp"
94	<	CXXFLAGS="$CXXFLAGS -I../../../mon/src"
93	>	MONSRCS="$mon_srcdir/mon.cpp $mon_srcdir/mon_6502.cpp $mon_srcdir/mon_z80.cpp $mon_srcdir/mon_cmd.cpp $mon_srcdir/mon_disass.cpp $mon_srcdir/mon_ppc.cpp $mon_srcdir/mon_lowmem.cpp $mon_srcdir/disass/floatformat.c $mon_srcdir/disass/i386-dis.c $mon_srcdir/disass/m68k-dis.c $mon_srcdir/disass/m68k-opc.c"
94	>	CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
95	>	AC_CHECK_LIB(ncurses, tgetent, ,
96	>	AC_CHECK_LIB(termcap, tgetent, ,
97	>	AC_CHECK_LIB(termlib, tgetent, ,
98	>	AC_CHECK_LIB(terminfo, tgetent, ,
99	>	AC_CHECK_LIB(Hcurses, tgetent, ,
100	>	AC_CHECK_LIB(curses, tgetent))))))
101		AC_CHECK_LIB(readline, readline)
63	–	AC_CHECK_LIB(termcap, tputs)
102		AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
103		else
104		AC_MSG_RESULT(no)
#	Line 71 | Line 109 | fi
109
110		dnl Checks for libraries.
111		AC_CHECK_LIB(posix4, sem_init)
112	+	AC_CHECK_LIB(rt, timer_create)
113
114		dnl We need X11.
115		AC_PATH_XTRA
#	Line 94 | Line 133 | if [[ "x$HAVE_PTHREADS" = "xyes" ]]; the
133		AC_DEFINE(HAVE_PTHREADS)
134		fi
135		AC_CHECK_FUNCS(pthread_cancel)
136	+	AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
137	+	AC_CHECK_FUNCS(pthread_mutexattr_settype)
138
139		dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
140		SEMSRC=
141		AC_CHECK_FUNCS(sem_init, , [
142	<	if [ "x$HAVE_PTHREADS" = "xyes" ]; then
142	>	if test "x$HAVE_PTHREADS" = "xyes"; then
143		SEMSRC=posix_sem.cpp
144		fi
145		])
#	Line 137 | Line 178 | UISRCS=../dummy/prefs_editor_dummy.cpp
178		if [[ "x$WANT_GTK" = "xyes" ]]; then
179		AM_PATH_GTK(1.2.0, [
180		AC_DEFINE(ENABLE_GTK)
140	–	CFLAGS="$CFLAGS $GTK_CFLAGS"
181		CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
182		LIBS="$LIBS $GTK_LIBS"
183		UISRCS=prefs_editor_gtk.cpp
184	+	B2_PATH_GNOMEUI([
185	+	AC_DEFINE(HAVE_GNOMEUI)
186	+	CXXFLAGS="$CXXFLAGS $GNOMEUI_CFLAGS"
187	+	LIBS="$LIBS $GNOMEUI_LIBS"
188	+	], [])
189		], [
190		AC_MSG_WARN([Could not find GTK+, disabling user interface.])
191		WANT_GTK=no
#	Line 160 | Line 205 | if [[ "x$WANT_ESD" = "xyes" ]]; then
205		])
206		fi
207
208	+	dnl We use 64-bit file size support if possible.
209	+	dnl FIXME: Use AC_SYS_LARGEFILE from autoconf 2.5+
210	+	if [[ "x$OS_TYPE" = "xlinux" ]]; then
211	+	AC_DEFINE(_USE_LARGEFILE_SOURCE, 1, [Get more functions for correct standard I/O])
212	+	AC_DEFINE(_FILE_OFFSET_BITS, 64, [Get 64-bit file size support])
213	+	fi
214	+
215		dnl Checks for header files.
216		AC_HEADER_STDC
217	<	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h)
217	>	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h)
218
219		dnl Checks for typedefs, structures, and compiler characteristics.
220		AC_C_BIGENDIAN
#	Line 172 | Line 224 | AC_CHECK_SIZEOF(short, 2)
224		AC_CHECK_SIZEOF(int, 4)
225		AC_CHECK_SIZEOF(long, 4)
226		AC_CHECK_SIZEOF(long long, 8)
227	+	AC_CHECK_SIZEOF(float, 4)
228	+	AC_CHECK_SIZEOF(double, 8)
229	+	AC_CHECK_SIZEOF(long double, 12)
230	+	AC_CHECK_SIZEOF(void *, 4)
231		AC_TYPE_OFF_T
232		AC_CHECK_TYPE(loff_t, off_t)
233	+	AC_CHECK_TYPE(caddr_t, [char *])
234		AC_TYPE_SIZE_T
235	+	AC_TYPE_SIGNAL
236		AC_HEADER_TIME
237		AC_STRUCT_TM
238
239	+	dnl Check whether sys/socket.h defines type socklen_t.
240	+	dnl (extracted from ac-archive/Miscellaneous)
241	+	AC_CACHE_CHECK("for socklen_t",
242	+	ac_cv_type_socklen_t, [
243	+	AC_TRY_COMPILE([
244	+	#include <sys/types.h>
245	+	#include <sys/socket.h>
246	+	], [socklen_t len = 42; return 0;],
247	+	ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
248	+	dnl When cross-compiling, do not assume anything.
249	+	ac_cv_type_socklen_t="guessing no"
250	+	)
251	+	])
252	+	if [[ "x$ac_cv_type_socklen_t" != "xyes" ]]; then
253	+	AC_DEFINE(socklen_t, int)
254	+	fi
255	+
256		dnl Checks for library functions.
257		AC_CHECK_FUNCS(strdup cfmakeraw)
258		AC_CHECK_FUNCS(clock_gettime timer_create)
259	+	AC_CHECK_FUNCS(sigaction signal)
260	+	AC_CHECK_FUNCS(mmap mprotect munmap)
261	+	AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
262	+
263	+	dnl Darwin seems to define mach_task_self() instead of task_self().
264	+	AC_CHECK_FUNCS(mach_task_self task_self)
265	+
266	+	dnl Check for headers and functions related to pty support (sshpty.c)
267	+	dnl From openssh-3.2.2p1 configure.ac
268	+
269	+	AC_CHECK_HEADERS(strings.h login.h sys/bsdtty.h sys/stat.h util.h pty.h)
270	+	AC_CHECK_FUNCS(_getpty vhangup strlcpy)
271	+
272	+	case "$host" in
273	+	*-*-hpux10.26)
274	+	disable_ptmx_check=yes
275	+	;;
276	+	*-*-linux*)
277	+	no_dev_ptmx=1
278	+	;;
279	+	mips-sony-bsd|mips-sony-newsos4)
280	+	AC_DEFINE(HAVE_NEWS4)
281	+	;;
282	+	*-*-sco3.2v4*)
283	+	no_dev_ptmx=1
284	+	;;
285	+	*-*-sco3.2v5*)
286	+	no_dev_ptmx=1
287	+	;;
288	+	esac
289	+
290	+	if test -z "$no_dev_ptmx" ; then
291	+	if test "x$disable_ptmx_check" != "xyes" ; then
292	+	AC_CHECK_FILE("/dev/ptmx",
293	+	[
294	+	AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX)
295	+	have_dev_ptmx=1
296	+	]
297	+	)
298	+	fi
299	+	fi
300	+	AC_CHECK_FILE("/dev/ptc",
301	+	[
302	+	AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC)
303	+	have_dev_ptc=1
304	+	]
305	+	)
306	+
307	+	dnl (end of code from openssh-3.2.2p1 configure.ac)
308	+
309
310		dnl Select system-dependant source files.
311		SERIALSRC=serial_unix.cpp
#	Line 188 | Line 313 | ETHERSRC=../dummy/ether_dummy.cpp
313		SCSISRC=../dummy/scsi_dummy.cpp
314		AUDIOSRC=../dummy/audio_dummy.cpp
315		EXTRASYSSRCS=
316	<	SUPPORTS_NATIVE_M68K=no
317	<	if MACHINE=`uname -s 2>/dev/null`; then
318	<	case "$MACHINE" in
319	<	Linux*)
320	<	ETHERSRC=Linux/ether_linux.cpp
321	<	SCSISRC=Linux/scsi_linux.cpp
322	<	AUDIOSRC=audio_oss_esd.cpp
323	<	;;
324	<	FreeBSD*3.*)
325	<	AUDIOSRC=audio_oss_esd.cpp
326	<	DEFINES="$DEFINES -DBSD_COMP"
327	<	dnl Check for the CAM library
328	<	AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
329	<	if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
330	<	AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
331	<	else
332	<	dnl Check for the sys kernel includes
333	<	AC_CHECK_HEADER(/sys/cam/cam.h)
334	<	if [[ "x$ac_cv_header__sys_cam_cam_h" = "xno" ]]; then
335	<	dnl In this case I should fix this thing including a "patch"
336	<	dnl to access directly to the functions in the kernel :) --Orlando
337	<	AC_MSG_WARN([Cannot find kernel includes for CAM library, disabling SCSI support.])
338	<	else
214	<	SCSISRC=FreeBSD/scsi_freebsd.cpp
215	<	CXXFLAGS="$CXXFLAGS -I/sys"
216	<	CFLAGS="$CFLAGS -I/sys"
217	<	LIBS="$LIBS -lcam"
218	<	DEFINES="$DEFINES -DCAM"
219	<	fi
220	<	fi
221	<	;;
222	<	FreeBSD*)
223	<	DEFINES="$DEFINES -DBSD_COMP"
224	<	dnl Check for the SCSI library
225	<	AC_CHECK_LIB(scsi, scsi_open, HAVE_LIBSCSI=yes, HAVE_LIBSCSI=no)
226	<	if [[ "x$HAVE_LIBSCSI" = "xno" ]]; then
227	<	AC_MSG_WARN([Cannot find libscsi for SCSI management, disabling SCSI support.])
316	>	CAN_NATIVE_M68K=no
317	>	case "$target_os" in
318	>	linux*)
319	>	ETHERSRC=ether_unix.cpp
320	>	AUDIOSRC=audio_oss_esd.cpp
321	>	SCSISRC=Linux/scsi_linux.cpp
322	>	;;
323	>	freebsd*)
324	>	ETHERSRC=ether_unix.cpp
325	>	AUDIOSRC=audio_oss_esd.cpp
326	>	DEFINES="$DEFINES -DBSD_COMP"
327	>	CXXFLAGS="$CXXFLAGS -fpermissive"
328	>	dnl Check for the CAM library
329	>	AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
330	>	if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
331	>	AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
332	>	else
333	>	dnl Check for the sys kernel includes
334	>	AC_CHECK_HEADER(camlib.h)
335	>	if [[ "x$ac_cv_header_camlib_h" = "xno" ]]; then
336	>	dnl In this case I should fix this thing including a "patch"
337	>	dnl to access directly to the functions in the kernel :) --Orlando
338	>	AC_MSG_WARN([Cannot find includes for CAM library, disabling SCSI support.])
339		else
340	<	dnl Check for the sys kernel includes
341	<	AC_CHECK_HEADER(scsi.h sys/scsiio.h)
342	<	if [[ "x$ac_cv_header_scsi_h" = "xno" ]]; then
232	<	AC_MSG_WARN([Cannot find includes for the SCSI library, disabling SCSI support.])
233	<	else
234	<	SCSISRC=FreeBSD/scsi_freebsd.cpp
235	<	LIBS="$LIBS -lscsi"
236	<	fi
340	>	SCSISRC=FreeBSD/scsi_freebsd.cpp
341	>	LIBS="$LIBS -lcam"
342	>	DEFINES="$DEFINES -DCAM"
343		fi
344	<	;;
345	<	NetBSD*)
346	<	SUPPORTS_NATIVE_M68K=yes
347	<	;;
348	<	SunOS*)
349	<	AUDIOSRC=Solaris/audio_solaris.cpp
350	<	DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
351	<	;;
352	<	IRIX*)
353	<	EXTRASYSSRCS=Irix/unaligned.c
354	<	DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200"
355	<	LIBS="$LIBS -lm"
356	<	;;
357	<	esac
344	>	fi
345	>	;;
346	>	netbsd*)
347	>	CAN_NATIVE_M68K=yes
348	>	;;
349	>	solaris*)
350	>	AUDIOSRC=Solaris/audio_solaris.cpp
351	>	DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
352	>	;;
353	>	irix*)
354	>	ETHERSRC=ether_unix.cpp
355	>	AUDIOSRC=Irix/audio_irix.cpp
356	>	EXTRASYSSRCS=Irix/unaligned.c
357	>	dnl IRIX headers work fine, but somehow don't define or use "STDC_HEADERS"
358	>	DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200 -DSTDC_HEADERS"
359	>	LIBS="$LIBS -laudio"
360	>	WANT_ESD=no
361	>
362	>	dnl Check if our compiler supports -Ofast (MIPSPro)
363	>	HAVE_OFAST=no
364	>	ocflags="$CFLAGS"
365	>	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / -Ofast /;s/^-g /-Ofast /;s/-g$/ -Ofast/;s/^-g$/-Ofast/'`
366	>	AC_MSG_CHECKING(if "-Ofast" works)
367	>	dnl Do a test compile of an empty function
368	>	AC_TRY_COMPILE(,, [AC_MSG_RESULT(yes); HAVE_OFAST=yes], AC_MSG_RESULT(no))
369	>	CFLAGS="$ocflags"
370	>
371	>	;;
372	>	esac
373	>
374	>	dnl Use 68k CPU natively?
375	>	WANT_NATIVE_M68K=no
376	>	if [[ "x$HAVE_M68K" = "xyes" -a "x$CAN_NATIVE_M68K" = "xyes" ]]; then
377	>	AC_DEFINE(ENABLE_NATIVE_M68K)
378	>	WANT_NATIVE_M68K=yes
379		fi
380	+
381		if [[ "x$HAVE_PTHREADS" = "xno" ]]; then
382		dnl Serial, ethernet and audio support needs pthreads
383		AC_MSG_WARN([You don't have pthreads, disabling serial, ethernet and audio support.])
#	Line 259 | Line 387 | if [[ "x$HAVE_PTHREADS" = "xno" ]]; then
387		fi
388		SYSSRCS="$SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
389
390	+	dnl Define a macro that translates a yesno-variable into a C macro definition
391	+	dnl to be put into the config.h file
392	+	dnl $1 -- the macro to define
393	+	dnl $2 -- the value to translate
394	+	AC_DEFUN(AC_TRANSLATE_DEFINE, [
395	+	if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
396	+	AC_DEFINE($1)
397	+	fi
398	+	])
399	+
400	+	dnl Various checks if the system supports vm_allocate() and the like functions.
401	+	have_mach_vm=no
402	+	if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
403	+	"x$ac_cv_func_vm_protect" = "xyes" ]]; then
404	+	have_mach_vm=yes
405	+	fi
406	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
407	+
408	+	dnl Check that vm_allocate(), vm_protect() work
409	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
410	+
411	+	AC_CACHE_CHECK("whether vm_protect works",
412	+	ac_cv_vm_protect_works, [
413	+	AC_LANG_SAVE
414	+	AC_LANG_CPLUSPLUS
415	+	ac_cv_vm_protect_works=yes
416	+	dnl First the tests that should segfault
417	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
418	+	AC_TRY_RUN([
419	+	#define CONFIGURE_TEST_VM_MAP
420	+	#define TEST_VM_PROT_$test_def
421	+	#include "vm_alloc.cpp"
422	+	], ac_cv_vm_protect_works=no, rm -f core,
423	+	dnl When cross-compiling, do not assume anything
424	+	ac_cv_vm_protect_works="guessing no"
425	+	)
426	+	done
427	+	AC_TRY_RUN([
428	+	#define CONFIGURE_TEST_VM_MAP
429	+	#define TEST_VM_PROT_RDWR_WRITE
430	+	#include "vm_alloc.cpp"
431	+	], , ac_cv_vm_protect_works=no,
432	+	dnl When cross-compiling, do not assume anything
433	+	ac_cv_vm_protect_works="guessing no"
434	+	)
435	+	AC_LANG_RESTORE
436	+	]
437	+	)
438	+
439	+	dnl Remove support for vm_allocate() if vm_protect() does not work
440	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
441	+	case $ac_cv_vm_protect_works in
442	+	*yes) have_mach_vm=yes;;
443	+	*no) have_mach_vm=no;;
444	+	esac
445	+	fi
446	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
447	+
448	+	fi dnl HAVE_MACH_VM
449	+
450	+	dnl Various checks if the system supports mmap() and the like functions.
451	+	dnl ... and Mach memory allocators are not supported
452	+	have_mmap_vm=no
453	+	if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
454	+	"x$ac_cv_func_mprotect" = "xyes" ]]; then
455	+	if [[ "x$have_mach_vm" = "xno" ]]; then
456	+	have_mmap_vm=yes
457	+	fi
458	+	fi
459	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm")
460	+
461	+	dnl Check that mmap() and associated functions work.
462	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
463	+
464	+	dnl Check if we have a working anonymous mmap()
465	+	AC_CACHE_CHECK("whether mmap supports MAP_ANON",
466	+	ac_cv_mmap_anon, [
467	+	AC_LANG_SAVE
468	+	AC_LANG_CPLUSPLUS
469	+	AC_TRY_RUN([
470	+	#define HAVE_MMAP_ANON
471	+	#define CONFIGURE_TEST_VM_MAP
472	+	#define TEST_VM_MMAP_ANON
473	+	#include "vm_alloc.cpp"
474	+	], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
475	+	dnl When cross-compiling, do not assume anything.
476	+	ac_cv_mmap_anon="guessing no"
477	+	)
478	+	AC_LANG_RESTORE
479	+	]
480	+	)
481	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon")
482	+
483	+	AC_CACHE_CHECK("whether mmap supports MAP_ANONYMOUS",
484	+	ac_cv_mmap_anonymous, [
485	+	AC_LANG_SAVE
486	+	AC_LANG_CPLUSPLUS
487	+	AC_TRY_RUN([
488	+	#define HAVE_MMAP_ANONYMOUS
489	+	#define CONFIGURE_TEST_VM_MAP
490	+	#define TEST_VM_MMAP_ANON
491	+	#include "vm_alloc.cpp"
492	+	], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
493	+	dnl When cross-compiling, do not assume anything.
494	+	ac_cv_mmap_anonymous="guessing no"
495	+	)
496	+	AC_LANG_RESTORE
497	+	]
498	+	)
499	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous")
500	+
501	+	AC_CACHE_CHECK("whether mprotect works",
502	+	ac_cv_mprotect_works, [
503	+	AC_LANG_SAVE
504	+	AC_LANG_CPLUSPLUS
505	+	ac_cv_mprotect_works=yes
506	+	dnl First the tests that should segfault
507	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
508	+	AC_TRY_RUN([
509	+	#define CONFIGURE_TEST_VM_MAP
510	+	#define TEST_VM_PROT_$test_def
511	+	#include "vm_alloc.cpp"
512	+	], ac_cv_mprotect_works=no, rm -f core,
513	+	dnl When cross-compiling, do not assume anything
514	+	ac_cv_mprotect_works="guessing no"
515	+	)
516	+	done
517	+	AC_TRY_RUN([
518	+	#define CONFIGURE_TEST_VM_MAP
519	+	#define TEST_VM_PROT_RDWR_WRITE
520	+	#include "vm_alloc.cpp"
521	+	], , ac_cv_mprotect_works=no,
522	+	dnl When cross-compiling, do not assume anything
523	+	ac_cv_mprotect_works="guessing no"
524	+	)
525	+	AC_LANG_RESTORE
526	+	]
527	+	)
528	+
529	+	dnl Remove support for mmap() if mprotect() does not work
530	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
531	+	case $ac_cv_mprotect_works in
532	+	*yes) have_mmap_vm=yes;;
533	+	*no) have_mmap_vm=no;;
534	+	esac
535	+	fi
536	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm)
537	+
538	+	fi dnl HAVE_MMAP_VM
539	+
540	+	dnl Check if we can mmap 0x2000 bytes from 0x0000
541	+	AC_CACHE_CHECK("whether we can map Low Memory area 0x0000-0x2000",
542	+	ac_cv_can_map_lm, [
543	+	AC_LANG_SAVE
544	+	AC_LANG_CPLUSPLUS
545	+	AC_TRY_RUN([
546	+	#include "vm_alloc.cpp"
547	+	int main(void) { /* returns 0 if we could map the lowmem globals */
548	+	volatile char * lm;
549	+	if (vm_init() < 0) exit(1);
550	+	if ((lm = (volatile char *)vm_acquire_fixed(0, 0x2000)) == VM_MAP_FAILED) exit(1);
551	+	lm[0] = 'z';
552	+	if (vm_release((char *)lm, 0x2000) < 0) exit(1);
553	+	vm_exit(); exit(0);
554	+	}
555	+	], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
556	+	dnl When cross-compiling, do not assume anything.
557	+	ac_cv_can_map_lm="guessing no"
558	+	)
559	+	AC_LANG_RESTORE
560	+	]
561	+	)
562	+
563	+	dnl Check signal handlers need to be reinstalled
564	+	AC_CACHE_CHECK("whether signal handlers need to be reinstalled",
565	+	ac_cv_signal_need_reinstall, [
566	+	AC_LANG_SAVE
567	+	AC_LANG_CPLUSPLUS
568	+	AC_TRY_RUN([
569	+	#include <stdlib.h>
570	+	#ifdef HAVE_UNISTD_H
571	+	#include <unistd.h>
572	+	#endif
573	+	#include <signal.h>
574	+	static int handled_signal = 0;
575	+	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
576	+	int main(void) { /* returns 0 if signals need not to be reinstalled */
577	+	signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
578	+	exit(handled_signal == 2);
579	+	}
580	+	], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
581	+	dnl When cross-compiling, do not assume anything.
582	+	ac_cv_signal_need_reinstall="guessing yes"
583	+	)
584	+	AC_LANG_RESTORE
585	+	]
586	+	)
587	+	AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall")
588	+
589	+	dnl Check if sigaction handlers need to be reinstalled
590	+	AC_CACHE_CHECK("whether sigaction handlers need to be reinstalled",
591	+	ac_cv_sigaction_need_reinstall, [
592	+	AC_LANG_SAVE
593	+	AC_LANG_CPLUSPLUS
594	+	AC_TRY_RUN([
595	+	#include <stdlib.h>
596	+	#ifdef HAVE_UNISTD_H
597	+	#include <unistd.h>
598	+	#endif
599	+	#include <signal.h>
600	+	static int handled_signal = 0;
601	+	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
602	+	typedef RETSIGTYPE (*signal_handler)(int);
603	+	static signal_handler mysignal(int sig, signal_handler handler) {
604	+	struct sigaction old_sa;
605	+	struct sigaction new_sa;
606	+	new_sa.sa_handler = handler;
607	+	return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
608	+	}
609	+	int main(void) { /* returns 0 if signals need not to be reinstalled */
610	+	mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
611	+	exit(handled_signal == 2);
612	+	}
613	+	], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
614	+	dnl When cross-compiling, do not assume anything.
615	+	ac_cv_sigaction_need_reinstall="guessing yes"
616	+	)
617	+	AC_LANG_RESTORE
618	+	]
619	+	)
620	+	AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall")
621	+
622	+	dnl Check if extended signals are supported.
623	+	AC_CACHE_CHECK("whether your system supports extended signal handlers",
624	+	ac_cv_have_extended_signals, [
625	+	AC_LANG_SAVE
626	+	AC_LANG_CPLUSPLUS
627	+	AC_TRY_RUN([
628	+	#define HAVE_SIGINFO_T 1
629	+	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
630	+	#include "vm_alloc.cpp"
631	+	#include "sigsegv.cpp"
632	+	], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
633	+	dnl When cross-compiling, do not assume anything.
634	+	ac_cv_have_extended_signals=no
635	+	)
636	+	AC_LANG_RESTORE
637	+	]
638	+	)
639	+	AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals")
640	+
641	+	dnl Otherwise, check for subterfuges.
642	+	if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
643	+	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
644	+	ac_cv_have_sigcontext_hack, [
645	+	AC_LANG_SAVE
646	+	AC_LANG_CPLUSPLUS
647	+	AC_TRY_RUN([
648	+	#define HAVE_SIGCONTEXT_SUBTERFUGE 1
649	+	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
650	+	#include "vm_alloc.cpp"
651	+	#include "sigsegv.cpp"
652	+	], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
653	+	dnl When cross-compiling, do not assume anything.
654	+	ac_cv_have_sigcontext_hack=no
655	+	)
656	+	AC_LANG_RESTORE
657	+	])
658	+	AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack")
659	+	fi
660	+
661	+	dnl Check if we can ignore the fault (instruction skipping in SIGSEGV handler)
662	+	AC_CACHE_CHECK("whether we can skip instruction in SIGSEGV handler",
663	+	ac_cv_have_skip_instruction, [
664	+	AC_LANG_SAVE
665	+	AC_LANG_CPLUSPLUS
666	+	AC_TRY_RUN([
667	+	#define HAVE_SIGSEGV_SKIP_INSTRUCTION 1
668	+	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
669	+	#include "vm_alloc.cpp"
670	+	#include "sigsegv.cpp"
671	+	], ac_cv_have_skip_instruction=yes, ac_cv_have_skip_instruction=no,
672	+	dnl When cross-compiling, do not assume anything.
673	+	ac_cv_have_skip_instruction=no
674	+	)
675	+	AC_LANG_RESTORE
676	+	]
677	+	)
678	+	AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$ac_cv_have_skip_instruction")
679	+
680	+	dnl Can we do Video on SEGV Signals ?
681	+	CAN_VOSF=no
682	+	if [[ "$ac_cv_have_extended_signals" = "yes" -o "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
683	+	CAN_VOSF=yes
684	+	fi
685	+
686	+	dnl Determine the addressing mode to use
687	+	if [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
688	+	ADDRESSING_MODE="real"
689	+	else
690	+	ADDRESSING_MODE=""
691	+	AC_MSG_CHECKING([for the addressing mode to use])
692	+	for am in $ADDRESSING_TEST_ORDER; do
693	+	case $am in
694	+	real)
695	+	dnl Requires ability to mmap() Low Memory globals
696	+	if [[ "x$ac_cv_can_map_lm" = "xno" ]]; then
697	+	continue
698	+	fi
699	+	dnl Requires VOSF screen updates
700	+	if [[ "x$CAN_VOSF" = "xno" ]]; then
701	+	continue
702	+	fi
703	+	dnl Real addressing will probably work.
704	+	ADDRESSING_MODE="real"
705	+	WANT_VOSF=yes dnl we can use VOSF and we need it actually
706	+	DEFINES="$DEFINES -DREAL_ADDRESSING"
707	+	break
708	+	;;
709	+	direct)
710	+	dnl Requires VOSF screen updates
711	+	if [[ "x$CAN_VOSF" = "xyes" ]]; then
712	+	ADDRESSING_MODE="direct"
713	+	WANT_VOSF=yes dnl we can use VOSF and we need it actually
714	+	DEFINES="$DEFINES -DDIRECT_ADDRESSING"
715	+	break
716	+	fi
717	+	;;
718	+	banks)
719	+	dnl Default addressing mode
720	+	ADDRESSING_MODE="memory banks"
721	+	break
722	+	;;
723	+	*)
724	+	AC_MSG_ERROR([Internal configure.in script error for $am addressing mode])
725	+	esac
726	+	done
727	+	AC_MSG_RESULT($ADDRESSING_MODE)
728	+	if [[ "x$ADDRESSING_MODE" = "x" ]]; then
729	+	AC_MSG_WARN([Sorry, no suitable addressing mode in $ADDRESSING_TEST_ORDER])
730	+	ADDRESSING_MODE="memory banks"
731	+	fi
732	+	fi
733	+
734	+	dnl Enable VOSF screen updates with this feature is requested and feasible
735	+	if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then
736	+	AC_DEFINE(ENABLE_VOSF)
737	+	else
738	+	WANT_VOSF=no
739	+	fi
740	+
741		dnl Check for GAS.
742		HAVE_GAS=no
743		AC_MSG_CHECKING(for GAS .p2align feature)
#	Line 278 | Line 757 | AC_EGREP_CPP(yes,
757		#endif
758		], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
759
760	+	dnl Check for GCC 3.0 or higher.
761	+	HAVE_GCC30=no
762	+	AC_MSG_CHECKING(for GCC 3.0 or higher)
763	+	AC_EGREP_CPP(yes,
764	+	[#if __GNUC__ >= 3
765	+	yes
766	+	#endif
767	+	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
768	+
769		dnl Set "-fomit-frame-pointer" on i386 GCC 2.7 or higher.
770	+	dnl Also set "-fno-exceptions" for C++ because exception handling requires
771	+	dnl the frame pointer.
772		if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
773		CFLAGS="$CFLAGS -fomit-frame-pointer"
774	<	CXXFLAGS="$CXXFLAGS -fomit-frame-pointer"
774	>	CXXFLAGS="$CXXFLAGS -fomit-frame-pointer -fno-exceptions"
775	>	fi
776	>
777	>	dnl (gb) Do not merge constants since it breaks fpu/fpu_x86.cpp.
778	>	dnl As of 2001/08/02, this affects the following compilers:
779	>	dnl Official: probably gcc-3.1 (mainline CVS)
780	>	dnl Mandrake: gcc-2.96 >= 0.59mdk, gcc-3.0.1 >= 0.1mdk
781	>	dnl Red Hat : gcc-2.96 >= 89, gcc-3.0 >= 1
782	>	if [[ "x$HAVE_GCC27" = "xyes" ]]; then
783	>	SAVED_CXXFLAGS="$CXXFLAGS"
784	>	CXXFLAGS="$CXXFLAGS -fno-merge-constants"
785	>	AC_CACHE_CHECK([whether GCC supports constants merging], ac_cv_gcc_constants_merging, [
786	>	AC_LANG_SAVE
787	>	AC_LANG_CPLUSPLUS
788	>	AC_TRY_COMPILE([],[],[ac_cv_gcc_constants_merging=yes],[ac_cv_gcc_constants_merging=no])
789	>	AC_LANG_RESTORE
790	>	])
791	>	if [[ "x$ac_cv_gcc_constants_merging" != "xyes" ]]; then
792	>	CXXFLAGS="$SAVED_CXXFLAGS"
793	>	fi
794		fi
795
796		dnl Select appropriate CPU source and REGPARAM define.
797	<	WANT_X86_ASSEMBLY=no
289	<	WANT_SPARC_V8_ASSEMBLY=no
290	<	WANT_SPARC_V9_ASSEMBLY=no
291	<	WANT_NATIVE_M68K=no
797	>	ASM_OPTIMIZATIONS=none
798		CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
799	<	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
799	>	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$OS_TYPE" != "xfreebsd" ]]; then
800		dnl i386 CPU
801		DEFINES="$DEFINES -DREGPARAM=\"__attribute__((regparm(3)))\""
802		if [[ "x$HAVE_GAS" = "xyes" ]]; then
803	<	WANT_X86_ASSEMBLY=yes
804	<	DEFINES="$DEFINES -DX86_ASSEMBLY"
805	<	CPUSRCS="../uae_cpu/compiler.cpp cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
803	>	ASM_OPTIMIZATIONS=i386
804	>	DEFINES="$DEFINES -DX86_ASSEMBLY -DUNALIGNED_PROFITABLE -DOPTIMIZED_FLAGS"
805	>	CPUSRCS="cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
806		fi
807		elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
808		dnl SPARC CPU
809	<	case "$MACHINE" in
810	<	SunOS*)
809	>	case "$target_os" in
810	>	solaris*)
811		AC_MSG_CHECKING(SPARC CPU architecture)
812		SPARC_TYPE=`Solaris/which_sparc`
813		AC_MSG_RESULT($SPARC_TYPE)
814		case "$SPARC_TYPE" in
815		SPARC_V8)
816	<	WANT_SPARC_V8_ASSEMBLY=yes
817	<	DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY"
816	>	ASM_OPTIMIZATIONS="SPARC V8 architecture"
817	>	DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
818		CFLAGS="$CFLAGS -Wa,-Av8"
819		CXXFLAGS="$CXXFLAGS -Wa,-Av8"
820		;;
821		SPARC_V9)
822	<	WANT_SPARC_V9_ASSEMBLY=yes
823	<	DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY"
822	>	ASM_OPTIMIZATIONS="SPARC V9 architecture"
823	>	DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
824		CFLAGS="$CFLAGS -Wa,-Av9"
825		CXXFLAGS="$CXXFLAGS -Wa,-Av9"
826		;;
827		esac
828		;;
829		esac
830	<	elif [[ "x$HAVE_M68K" = "xyes" -a "x$SUPPORTS_NATIVE_M68K" = "xyes" ]]; then
830	>	elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
831		dnl Native m68k, no emulation
832	<	CPUSRCS=""
833	<	AC_DEFINE(ENABLE_NATIVE_M68K)
834	<	WANT_NATIVE_M68K=yes
832	>	CPUINCLUDES="-I../native_cpu"
833	>	CPUSRCS="asm_support.s"
834	>	fi
835	>
836	>	dnl Utility macro used by next two tests.
837	>	dnl AC_EXAMINE_OBJECT(C source code,
838	>	dnl     commands examining object file,
839	>	dnl     [commands to run if compile failed]):
840	>	dnl
841	>	dnl Compile the source code to an object file; then convert it into a
842	>	dnl printable representation.  All unprintable characters and
843	>	dnl asterisks (*) are replaced by dots (.).  All white space is
844	>	dnl deleted.  Newlines (ASCII 0x10) in the input are preserved in the
845	>	dnl output, but runs of newlines are compressed to a single newline.
846	>	dnl Finally, line breaks are forcibly inserted so that no line is
847	>	dnl longer than 80 columns and the file ends with a newline.  The
848	>	dnl result of all this processing is in the file conftest.dmp, which
849	>	dnl may be examined by the commands in the second argument.
850	>	dnl
851	>	AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
852	>	[AC_LANG_SAVE
853	>	AC_LANG_C
854	>	dnl Next bit cribbed from AC_TRY_COMPILE.
855	>	cat > conftest.$ac_ext <<EOF
856	>	[#line __oline__ "configure"
857	>	#include "confdefs.h"
858	>	$1
859	>	]EOF
860	>	if AC_TRY_EVAL(ac_compile); then
861	>	od -c conftest.o |
862	>	sed ['s/^[0-7]*[    ]*/ /
863	>	s/\*/./g
864	>	s/ \\n/*/g
865	>	s/ [0-9][0-9][0-9]/./g
866	>	s/  \\[^ ]/./g'] |
867	>	tr -d '
868	>	' | tr -s '*' '
869	>	' | fold | sed '$a\
870	>	' > conftest.dmp
871	>	$2
872	>	ifelse($3, , , else
873	>	$3
874	>	)dnl
875	>	fi
876	>	rm -rf conftest*
877	>	AC_LANG_RESTORE])
878	>
879	>	dnl Floating point format probe.
880	>	dnl The basic concept is the same as the above: grep the object
881	>	dnl file for an interesting string.  We have to watch out for
882	>	dnl rounding changing the values in the object, however; this is
883	>	dnl handled by ignoring the least significant byte of the float.
884	>	dnl
885	>	dnl Does not know about VAX G-float or C4x idiosyncratic format.
886	>	dnl It does know about PDP-10 idiosyncratic format, but this is
887	>	dnl not presently supported by GCC.  S/390 "binary floating point"
888	>	dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
889	>	dnl as ASCII?)
890	>	dnl
891	>	AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
892	>	[AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
893	>	[gcc_AC_EXAMINE_OBJECT(
894	>	[/* This will not work unless sizeof(double) == 8.  */
895	>	extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
896	>
897	>	/* This structure must have no internal padding.  */
898	>	struct possibility {
899	>	char prefix[8];
900	>	double candidate;
901	>	char postfix[8];
902	>	};
903	>
904	>	#define C(cand) { "\nformat:", cand, ":tamrof\n" }
905	>	struct possibility table [] =
906	>	{
907	>	C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
908	>	C( 3.53802595280598432000e+18), /* D__float - VAX */
909	>	C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
910	>	C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
911	>	C(-5.22995989424860458374e+10)  /* IBMHEXFP - s/390 format, EBCDIC */
912	>	};],
913	>	[if   grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
914	>	ac_cv_c_float_format='IEEE (big-endian)'
915	>	elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
916	>	ac_cv_c_float_format='IEEE (big-endian)'
917	>	elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
918	>	ac_cv_c_float_format='IEEE (little-endian)'
919	>	elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
920	>	ac_cv_c_float_format='IEEE (little-endian)'
921	>	elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
922	>	ac_cv_c_float_format='VAX D-float'
923	>	elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
924	>	ac_cv_c_float_format='PDP-10'
925	>	elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
926	>	ac_cv_c_float_format='IBM 370 hex'
927	>	else
928	>	AC_MSG_ERROR(Unknown floating point format)
929	>	fi],
930	>	[AC_MSG_ERROR(compile failed)])
931	>	])
932	>	# IEEE is the default format.  If the float endianness isn't the same
933	>	# as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
934	>	# (which is a tristate: yes, no, default).  This is only an issue with
935	>	# IEEE; the other formats are only supported by a few machines each,
936	>	# all with the same endianness.
937	>	format=IEEE_FLOAT_FORMAT
938	>	fbigend=
939	>	case $ac_cv_c_float_format in
940	>	'IEEE (big-endian)' )
941	>	if test $ac_cv_c_bigendian = no; then
942	>	fbigend=1
943	>	fi
944	>	;;
945	>	'IEEE (little-endian)' )
946	>	if test $ac_cv_c_bigendian = yes; then
947	>	fbigend=0
948	>	fi
949	>	;;
950	>	'VAX D-float' )
951	>	format=VAX_FLOAT_FORMAT
952	>	;;
953	>	'PDP-10' )
954	>	format=PDP10_FLOAT_FORMAT
955	>	;;
956	>	'IBM 370 hex' )
957	>	format=IBM_FLOAT_FORMAT
958	>	;;
959	>	esac
960	>	AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
961	>	[Define to the floating point format of the host machine.])
962	>	if test -n "$fbigend"; then
963	>	AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
964	>	[Define to 1 if the host machine stores floating point numbers in
965	>	memory with the word containing the sign bit at the lowest address,
966	>	or to 0 if it does it the other way around.
967	>
968	>	This macro should not be defined if the ordering is the same as for
969	>	multi-word integers.])
970	>	fi
971	>	])
972	>
973	>	dnl Select appropriate FPU source.
974	>	gcc_AC_C_FLOAT_FORMAT
975	>	AC_CHECK_HEADERS(ieee754.h ieeefp.h floatingpoint.h nan.h)
976	>
977	>	for fpe in $FPE_CORE_TEST_ORDER; do
978	>	case $fpe in
979	>	ieee)
980	>	if echo "$ac_cv_c_float_format" | grep -q IEEE; then
981	>	FPE_CORE="IEEE fpu core"
982	>	DEFINES="$DEFINES -DFPU_IEEE"
983	>	FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
984	>	break
985	>	fi
986	>	;;
987	>	x86)
988	>	if [[ ":$HAVE_GCC27:$HAVE_I386:$HAVE_GAS:" = ":yes:yes:yes:" ]]; then
989	>	FPE_CORE="i387 fpu core"
990	>	DEFINES="$DEFINES -DFPU_X86"
991	>	FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
992	>	break
993	>	fi
994	>	;;
995	>	uae)
996	>	FPE_CORE="uae fpu core"
997	>	DEFINES="$DEFINES -DFPU_UAE"
998	>	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
999	>	break
1000	>	;;
1001	>	*)
1002	>	AC_MSG_ERROR([Internal configure.in script error for $fpe fpu core])
1003	>	;;
1004	>	esac
1005	>	done
1006	>	if [[ "x$FPE_CORE" = "x" ]]; then
1007	>	AC_MSG_ERROR([Sorry, no suitable FPU core found in $FPE_CORE_TEST_ORDER])
1008		fi
1009
1010	+	dnl Check for certain math functions
1011	+	AC_CHECK_FUNCS(atanh)
1012	+	AC_CHECK_FUNCS(isnan isinf)             dnl C99
1013	+	AC_CHECK_FUNCS(isnanl isinfl)   dnl IEEE ?
1014	+
1015		dnl UAE CPU sources for all non-m68k-native architectures.
1016		if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
1017		CPUINCLUDES="-I../uae_cpu"
1018	<	CPUSRCS="../uae_cpu/basilisk_glue.cpp ../uae_cpu/memory.cpp ../uae_cpu/newcpu.cpp ../uae_cpu/readcpu.cpp ../uae_cpu/fpp.cpp cpustbl.cpp cpudefs.cpp $CPUSRCS"
1019	<	else
1020	<	CPUINCLUDES="-I../native_cpu"
1021	<	CPUSRCS="asm_support.s"
1018	>	CPUSRCS="../uae_cpu/basilisk_glue.cpp ../uae_cpu/memory.cpp ../uae_cpu/newcpu.cpp ../uae_cpu/readcpu.cpp $FPUSRCS cpustbl.cpp cpudefs.cpp $CPUSRCS"
1019	>	fi
1020	>
1021	>	dnl Remove the "-g" option if set for GCC.
1022	>	if [[ "x$HAVE_GCC27" = "xyes" ]]; then
1023	>	CFLAGS=`echo $CFLAGS | sed -e 's/-g//g'`
1024	>	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g//g'`
1025	>	fi
1026	>
1027	>	dnl Or if we have -Ofast
1028	>	if [[ "x$HAVE_OFAST" = "xyes" ]]; then
1029	>	CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -Ofast"
1030	>	CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -Ofast"
1031	>	CXXFLAGS="-LANG:std $CXXFLAGS"
1032	>	LDFLAGS="$LDFLAGS -ipa"
1033		fi
1034
1035		dnl Generate Makefile.
#	Line 348 | Line 1043 | dnl Print summary.
1043		echo
1044		echo Basilisk II configuration summary:
1045		echo
1046	<	echo XFree86 DGA support .............. : $WANT_XF86_DGA
1047	<	echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
1048	<	echo fbdev DGA support ................ : $WANT_FBDEV_DGA
1049	<	echo ESD sound support ................ : $WANT_ESD
1050	<	echo GTK user interface ............... : $WANT_GTK
1051	<	echo mon debugger support ............. : $WANT_MON
1052	<	echo i386 assembly optimizations ...... : $WANT_X86_ASSEMBLY
1053	<	echo SPARC V8 assembly optimizations .. : $WANT_SPARC_V8_ASSEMBLY
1054	<	echo SPARC V9 assembly optimizations .. : $WANT_SPARC_V9_ASSEMBLY
1055	<	echo Running m68k code natively ....... : $WANT_NATIVE_M68K
1046	>	echo XFree86 DGA support .................... : $WANT_XF86_DGA
1047	>	echo XFree86 VidMode support ................ : $WANT_XF86_VIDMODE
1048	>	echo fbdev DGA support ...................... : $WANT_FBDEV_DGA
1049	>	echo Enable video on SEGV signals ........... : $WANT_VOSF
1050	>	echo ESD sound support ...................... : $WANT_ESD
1051	>	echo GTK user interface ..................... : $WANT_GTK
1052	>	echo mon debugger support ................... : $WANT_MON
1053	>	echo Running m68k code natively ............. : $WANT_NATIVE_M68K
1054	>	echo Floating-Point emulation core .......... : $FPE_CORE
1055	>	echo Assembly optimizations ................. : $ASM_OPTIMIZATIONS
1056	>	echo Addressing mode ........................ : $ADDRESSING_MODE
1057		echo
1058		echo "Configuration done. Now type \"make\" (or \"gmake\")."

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