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

Comparing BasiliskII/src/Unix/configure.in (file contents):
Revision 1.20 by cebix, 2000-07-13T16:12:31Z vs.
Revision 1.33 by cebix, 2001-02-10T15:29:01Z

#	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=$enableval], [WANT_FBDEV_DGA=yes])
12	+	AC_ARG_ENABLE(vosf,          [  --enable-vosf           enable video on SEGV signals [default=no]], [WANT_VOSF=$enableval], [WANT_VOSF=no])
13	+
14	+	dnl Addressing modes.
15	+	AC_ARG_ENABLE(addressing,
16	+	[  --enable-addressing=AM  specify the addressing mode to use [default=fastest]],
17	+	[ case "$enableval" in
18	+	real)       ADDRESSING_TEST_ORDER="real";;
19	+	direct)     ADDRESSING_TEST_ORDER="direct";;
20	+	banks)      ADDRESSING_TEST_ORDER="banks";;
21	+	fastest)ADDRESSING_TEST_ORDER="direct banks";;
22	+	*)          AC_MSG_ERROR([--enable-addressing takes only one of the following values: fastest, real, direct, banks]);;
23	+	esac
24	+	],
25	+	[ ADDRESSING_TEST_ORDER="direct banks"
26	+	])
27	+
28	+	dnl External packages.
29		AC_ARG_WITH(esd,             [  --with-esd              support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
30		AC_ARG_WITH(gtk,             [  --with-gtk              use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes])
31		AC_ARG_WITH(mon,             [  --with-mon              use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
32
33	+	dnl Canonical system information.
34	+	AC_CANONICAL_HOST
35	+	AC_CANONICAL_TARGET
36	+
37	+	dnl Target OS type (target is host if not cross-compiling).
38	+	case "$target_os" in
39	+	linux*)       OS_TYPE=linux;;
40	+	netbsd*)      OS_TYPE=netbsd;;
41	+	freebsd*)     OS_TYPE=freebsd;;
42	+	solaris*)     OS_TYPE=solaris;;
43	+	*)            OS_TYPE=`echo $target_os | sed -e 's/-/_/' | sed -e 's/\./_/'`;;
44	+	esac
45	+	DEFINES="$DEFINES -DOS_$OS_TYPE"
46	+
47	+	dnl Target CPU type.
48	+	HAVE_I386=no
49	+	HAVE_M68K=no
50	+	HAVE_SPARC=no
51	+	HAVE_POWERPC=no
52	+	case "$target_cpu" in
53	+	i386* | i486* | i586* | i686* | i786* ) CPU_TYPE=i386 HAVE_I386=yes;;
54	+	m68k* ) CPU_TYPE=m68k HAVE_M68K=yes;;
55	+	sparc* ) CPU_TYPE=sparc HAVE_SPARC=yes;;
56	+	powerpc* ) CPU_TYPE=powerpc HAVE_POWERPC=yes;;
57	+	*) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/'`;;
58	+	esac
59	+	DEFINES="$DEFINES -DCPU_$CPU_TYPE"
60	+
61		dnl Checks for programs.
62		AC_PROG_CC
63	+	AC_PROG_CC_C_O
64		AC_PROG_CPP
65		AC_PROG_CXX
66		AC_PROG_MAKE_SET
67		AC_PROG_INSTALL
68
23	–	dnl Check for i386 target CPU.
24	–	HAVE_I386=no
25	–	AC_MSG_CHECKING(for x86 target CPU)
26	–	AC_EGREP_CPP(yes,
27	–	[
28	–	#ifdef __i386__
29	–	yes
30	–	#endif
31	–	], [AC_MSG_RESULT(yes); HAVE_I386=yes], AC_MSG_RESULT(no))
32	–
33	–	dnl Check for SPARC target CPU.
34	–	HAVE_SPARC=no
35	–	AC_MSG_CHECKING(for SPARC target CPU)
36	–	AC_EGREP_CPP(yes,
37	–	[
38	–	#ifdef __sparc__
39	–	yes
40	–	#endif
41	–	], [AC_MSG_RESULT(yes); HAVE_SPARC=yes], AC_MSG_RESULT(no))
42	–
43	–	dnl Check for m68k target CPU.
44	–	HAVE_M68K=no
45	–	AC_MSG_CHECKING(for m68k target CPU)
46	–	AC_EGREP_CPP(yes,
47	–	[
48	–	#ifdef __m68k__
49	–	yes
50	–	#endif
51	–	], [AC_MSG_RESULT(yes); HAVE_M68K=yes], AC_MSG_RESULT(no))
52	–
69		dnl We use mon if possible.
70		MONSRCS=
71		if [[ "x$WANT_MON" = "xyes" ]]; then
72		AC_MSG_CHECKING(for mon)
73	<	if grep mon_init ../../../mon/src/mon.h >/dev/null 2>/dev/null; then
73	>	mon_srcdir=../../../mon/src
74	>	if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
75		AC_MSG_RESULT(yes)
76		AC_DEFINE(ENABLE_MON)
77	<	MONSRCS="../../../mon/src/mon.cpp ../../../mon/src/mon_6502.cpp ../../../mon/src/mon_68k.cpp ../../../mon/src/mon_8080.cpp ../../../mon/src/mon_cmd.cpp ../../../mon/src/mon_ppc.cpp ../../../mon/src/mon_x86.cpp"
78	<	CXXFLAGS="$CXXFLAGS -I../../../mon/src"
77	>	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/disass/floatformat.c $mon_srcdir/disass/i386-dis.c $mon_srcdir/disass/m68k-dis.c $mon_srcdir/disass/m68k-opc.c"
78	>	CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
79		AC_CHECK_LIB(readline, readline)
80		AC_CHECK_LIB(termcap, tputs)
81		AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
#	Line 98 | Line 115 | AC_CHECK_FUNCS(pthread_cancel)
115		dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
116		SEMSRC=
117		AC_CHECK_FUNCS(sem_init, , [
118	<	if [ "x$HAVE_PTHREADS" = "xyes" ]; then
118	>	if test "x$HAVE_PTHREADS" = "xyes"; then
119		SEMSRC=posix_sem.cpp
120		fi
121		])
#	Line 172 | Line 189 | AC_CHECK_SIZEOF(short, 2)
189		AC_CHECK_SIZEOF(int, 4)
190		AC_CHECK_SIZEOF(long, 4)
191		AC_CHECK_SIZEOF(long long, 8)
192	+	AC_CHECK_SIZEOF(void *, 4)
193		AC_TYPE_OFF_T
194		AC_CHECK_TYPE(loff_t, off_t)
195		AC_TYPE_SIZE_T
196	+	AC_TYPE_SIGNAL
197		AC_HEADER_TIME
198		AC_STRUCT_TM
199
200		dnl Checks for library functions.
201		AC_CHECK_FUNCS(strdup cfmakeraw)
202	<	AC_CHECK_FUNCS(nanosleep clock_gettime timer_create)
202	>	AC_CHECK_FUNCS(clock_gettime timer_create)
203
204		dnl Select system-dependant source files.
205		SERIALSRC=serial_unix.cpp
#	Line 188 | Line 207 | ETHERSRC=../dummy/ether_dummy.cpp
207		SCSISRC=../dummy/scsi_dummy.cpp
208		AUDIOSRC=../dummy/audio_dummy.cpp
209		EXTRASYSSRCS=
210	<	SUPPORTS_NATIVE_M68K=no
211	<	if MACHINE=`uname -s 2>/dev/null`; then
212	<	case "$MACHINE" in
213	<	Linux*)
214	<	ETHERSRC=Linux/ether_linux.cpp
215	<	SCSISRC=Linux/scsi_linux.cpp
216	<	AUDIOSRC=audio_oss_esd.cpp
217	<	;;
218	<	FreeBSD*3.*)
219	<	AUDIOSRC=audio_oss_esd.cpp
220	<	DEFINES="$DEFINES -DBSD_COMP"
221	<	dnl Check for the CAM library
222	<	AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
223	<	if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
224	<	AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
210	>	CAN_NATIVE_M68K=no
211	>	case "$target_os" in
212	>	linux*)
213	>	ETHERSRC=Linux/ether_linux.cpp
214	>	SCSISRC=Linux/scsi_linux.cpp
215	>	AUDIOSRC=audio_oss_esd.cpp
216	>	;;
217	>	freebsd*3.*)
218	>	AUDIOSRC=audio_oss_esd.cpp
219	>	DEFINES="$DEFINES -DBSD_COMP"
220	>	dnl Check for the CAM library
221	>	AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
222	>	if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
223	>	AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
224	>	else
225	>	dnl Check for the sys kernel includes
226	>	AC_CHECK_HEADER(/sys/cam/cam.h)
227	>	if [[ "x$ac_cv_header__sys_cam_cam_h" = "xno" ]]; then
228	>	dnl In this case I should fix this thing including a "patch"
229	>	dnl to access directly to the functions in the kernel :) --Orlando
230	>	AC_MSG_WARN([Cannot find kernel includes for CAM library, disabling SCSI support.])
231		else
232	<	dnl Check for the sys kernel includes
233	<	AC_CHECK_HEADER(/sys/cam/cam.h)
234	<	if [[ "x$ac_cv_header__sys_cam_cam_h" = "xno" ]]; then
235	<	dnl In this case I should fix this thing including a "patch"
236	<	dnl to access directly to the functions in the kernel :) --Orlando
212	<	AC_MSG_WARN([Cannot find kernel includes for CAM library, disabling SCSI support.])
213	<	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
232	>	SCSISRC=FreeBSD/scsi_freebsd.cpp
233	>	CXXFLAGS="$CXXFLAGS -I/sys"
234	>	CFLAGS="$CFLAGS -I/sys"
235	>	LIBS="$LIBS -lcam"
236	>	DEFINES="$DEFINES -DCAM"
237		fi
238	<	;;
239	<	FreeBSD*)
240	<	DEFINES="$DEFINES -DBSD_COMP"
241	<	dnl Check for the SCSI library
242	<	AC_CHECK_LIB(scsi, scsi_open, HAVE_LIBSCSI=yes, HAVE_LIBSCSI=no)
243	<	if [[ "x$HAVE_LIBSCSI" = "xno" ]]; then
244	<	AC_MSG_WARN([Cannot find libscsi for SCSI management, disabling SCSI support.])
238	>	fi
239	>	;;
240	>	freebsd*)
241	>	DEFINES="$DEFINES -DBSD_COMP"
242	>	dnl Check for the SCSI library
243	>	AC_CHECK_LIB(scsi, scsi_open, HAVE_LIBSCSI=yes, HAVE_LIBSCSI=no)
244	>	if [[ "x$HAVE_LIBSCSI" = "xno" ]]; then
245	>	AC_MSG_WARN([Cannot find libscsi for SCSI management, disabling SCSI support.])
246	>	else
247	>	dnl Check for the sys kernel includes
248	>	AC_CHECK_HEADER(scsi.h sys/scsiio.h)
249	>	if [[ "x$ac_cv_header_scsi_h" = "xno" ]]; then
250	>	AC_MSG_WARN([Cannot find includes for the SCSI library, disabling SCSI support.])
251		else
252	<	dnl Check for the sys kernel includes
253	<	AC_CHECK_HEADER(scsi.h sys/scsiio.h)
231	<	if [[ "x$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="$LIBS -lscsi"
236	<	fi
252	>	SCSISRC=FreeBSD/scsi_freebsd.cpp
253	>	LIBS="$LIBS -lscsi"
254		fi
255	<	;;
256	<	NetBSD*)
257	<	SUPPORTS_NATIVE_M68K=yes
258	<	;;
259	<	SunOS*)
260	<	AUDIOSRC=Solaris/audio_solaris.cpp
261	<	DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
262	<	;;
263	<	IRIX*)
264	<	EXTRASYSSRCS=Irix/unaligned.c
265	<	DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200"
266	<	LIBS="$LIBS -lm"
267	<	;;
268	<	esac
255	>	fi
256	>	;;
257	>	netbsd*)
258	>	CAN_NATIVE_M68K=yes
259	>	;;
260	>	solaris*)
261	>	AUDIOSRC=Solaris/audio_solaris.cpp
262	>	DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
263	>	;;
264	>	irix*)
265	>	AUDIOSRC=Irix/audio_irix.cpp
266	>	EXTRASYSSRCS=Irix/unaligned.c
267	>	dnl IRIX headers work fine, but somehow don't define or use "STDC_HEADERS"
268	>	DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200 -DSTDC_HEADERS"
269	>	LIBS="$LIBS -laudio"
270	>	;;
271	>	esac
272	>
273	>	dnl Use 68k CPU natively?
274	>	WANT_NATIVE_M68K=no
275	>	if [[ "x$HAVE_M68K" = "xyes" -a "x$CAN_NATIVE_M68K" = "xyes" ]]; then
276	>	AC_DEFINE(ENABLE_NATIVE_M68K)
277	>	WANT_NATIVE_M68K=yes
278		fi
279	+
280		if [[ "x$HAVE_PTHREADS" = "xno" ]]; then
281		dnl Serial, ethernet and audio support needs pthreads
282		AC_MSG_WARN([You don't have pthreads, disabling serial, ethernet and audio support.])
#	Line 259 | Line 286 | if [[ "x$HAVE_PTHREADS" = "xno" ]]; then
286		fi
287		SYSSRCS="$SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
288
289	+	dnl Define a macro that translates a yesno-variable into a C macro definition
290	+	dnl to be put into the config.h file
291	+	dnl $1 -- the macro to define
292	+	dnl $2 -- the value to translate
293	+	AC_DEFUN(AC_TRANSLATE_DEFINE, [
294	+	if [[ "x$2" = "xyes" ]]; then
295	+	AC_DEFINE($1)
296	+	fi
297	+	])
298	+
299	+	dnl Check if we can mmap 0x2000 bytes from 0x0000
300	+	AC_CACHE_CHECK("whether we can map Low Memory area 0x0000-0x2000",
301	+	ac_cv_can_map_lm, [
302	+	AC_LANG_SAVE
303	+	AC_LANG_CPLUSPLUS
304	+	AC_TRY_RUN([
305	+	#include <unistd.h>
306	+	#include <fcntl.h>
307	+	#include <sys/mman.h>
308	+
309	+	int main()
310	+	{ int zero_fd; char * lm;
311	+	if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
312	+	if ((lm = (char *)mmap((caddr_t)0x0000, 0x2000, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, zero_fd, 0)) == MAP_FAILED) exit(1);
313	+	lm[0] = 0x12;
314	+	munmap(lm, 0x2000);
315	+	close(zero_fd);
316	+	exit(0);
317	+	}
318	+	],
319	+	[ac_cv_can_map_lm=yes],
320	+	[ac_cv_can_map_lm=no]
321	+	)
322	+	AC_LANG_RESTORE
323	+	]
324	+	)
325	+
326	+	dnl Check if extended signals are supported.
327	+	AC_CACHE_CHECK("whether your system supports extended signal handlers",
328	+	ac_cv_have_extended_signals, [
329	+	AC_LANG_SAVE
330	+	AC_LANG_CPLUSPLUS
331	+	AC_TRY_RUN([
332	+	#include <unistd.h>
333	+	#include <stdlib.h>
334	+	#include <signal.h>
335	+	#include <fcntl.h>
336	+	#include <sys/mman.h>
337	+
338	+	static volatile caddr_t mem = 0;
339	+	static int zero_fd = -1;
340	+
341	+	static RETSIGTYPE segfault_handler(int, siginfo_t * sip, void *)
342	+	{ if ((caddr_t)(sip->si_addr) != mem) exit(1);
343	+	munmap(mem, getpagesize()); close(zero_fd); exit(0); }
344	+
345	+	int main()
346	+	{ if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
347	+	if ((mem = (caddr_t)mmap(0, getpagesize(), PROT_READ, MAP_PRIVATE, zero_fd, 0)) == (caddr_t)MAP_FAILED) exit(1);
348	+	struct sigaction sa; sa.sa_sigaction = segfault_handler; sa.sa_flags = SA_SIGINFO;
349	+	sigaction(SIGSEGV, &sa, 0);
350	+	mem[0] = 0;
351	+	exit(1); // should not be reached
352	+	}
353	+	],
354	+	[ac_cv_have_extended_signals=yes],
355	+	[ac_cv_have_extended_signals=no]
356	+	)
357	+	AC_LANG_RESTORE
358	+	]
359	+	)
360	+	AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals")
361	+
362	+	dnl Otherwise, check for subterfuges.
363	+	if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
364	+	case "$target_os" in
365	+	linux*)
366	+	if [[ "x$HAVE_I386" = "xyes" ]]; then
367	+	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
368	+	ac_cv_have_sigcontext_hack, [
369	+	AC_LANG_SAVE
370	+	AC_LANG_CPLUSPLUS
371	+	AC_TRY_RUN([
372	+	#include <unistd.h>
373	+	#include <signal.h>
374	+	#include <fcntl.h>
375	+	#include <sys/mman.h>
376	+
377	+	static volatile caddr_t mem = 0;
378	+	static int zero_fd = -1;
379	+
380	+	static RETSIGTYPE segfault_handler(int, struct sigcontext scs)
381	+	{ if ((caddr_t)(scs.cr2) != mem) exit(1);
382	+	munmap(mem, getpagesize()); close(zero_fd); exit(0); }
383	+
384	+	int main()
385	+	{ if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
386	+	if ((mem = (caddr_t)mmap(0, getpagesize(), PROT_READ, MAP_PRIVATE, zero_fd, 0)) == (caddr_t)MAP_FAILED) exit(1);
387	+	struct sigaction sa; sa.sa_flags = 0;
388	+	sa.sa_handler = (RETSIGTYPE (*)(int))segfault_handler;
389	+	sigaction(SIGSEGV, &sa, 0);
390	+	mem[0] = 0;
391	+	exit(1); // should not be reached
392	+	}
393	+	],
394	+	[ac_cv_have_sigcontext_hack=yes],
395	+	[ac_cv_have_sigcontext_hack=no]
396	+	)
397	+	AC_LANG_RESTORE
398	+	])
399	+	AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, $ac_cv_have_sigcontext_hack)
400	+	elif [[ "x$HAVE_POWERPC" = "xyes" ]]; then
401	+	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
402	+	ac_cv_have_sigcontext_hack, [
403	+	AC_LANG_SAVE
404	+	AC_LANG_CPLUSPLUS
405	+	AC_TRY_RUN([
406	+	#include <unistd.h>
407	+	#include <signal.h>
408	+	#include <fcntl.h>
409	+	#include <sys/mman.h>
410	+
411	+	static volatile caddr_t mem = 0;
412	+	static int zero_fd = -1;
413	+
414	+	static RETSIGTYPE segfault_handler(int, struct sigcontext_struct *scs)
415	+	{ if ((caddr_t)(scs->regs->dar) != mem) exit(1);
416	+	munmap(mem, getpagesize()); close(zero_fd); exit(0); }
417	+
418	+	int main()
419	+	{ if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
420	+	if ((mem = (caddr_t)mmap(0, getpagesize(), PROT_READ, MAP_PRIVATE, zero_fd, 0)) == (caddr_t)MAP_FAILED) exit(1);
421	+	struct sigaction sa; sa.sa_flags = 0;
422	+	sa.sa_handler = (RETSIGTYPE (*)(int))segfault_handler;
423	+	sigaction(SIGSEGV, &sa, 0);
424	+	mem[0] = 0;
425	+	exit(1); // should not be reached
426	+	}
427	+	],
428	+	[ac_cv_have_sigcontext_hack=yes],
429	+	[ac_cv_have_sigcontext_hack=no]
430	+	)
431	+	AC_LANG_RESTORE
432	+	])
433	+	AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, $ac_cv_have_sigcontext_hack)
434	+	fi
435	+	;;
436	+	netbsd*)
437	+	if [[ "x$HAVE_M68K" = "xyes" ]]; then
438	+	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
439	+	ac_cv_have_sigcontext_hack, [
440	+	AC_LANG_SAVE
441	+	AC_LANG_CPLUSPLUS
442	+	AC_TRY_RUN([
443	+	#include <unistd.h>
444	+	#include <signal.h>
445	+	#include <fcntl.h>
446	+	#include <sys/mman.h>
447	+
448	+	static volatile caddr_t mem = 0;
449	+	static int zero_fd = -1;
450	+
451	+	static RETSIGTYPE segfault_handler(int, int code)
452	+	{ if ((caddr_t)code != mem) exit(1);
453	+	munmap(mem, getpagesize()); close(zero_fd); exit(0); }
454	+
455	+	int main()
456	+	{ if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
457	+	if ((mem = (caddr_t)mmap(0, getpagesize(), PROT_READ, MAP_PRIVATE, zero_fd, 0)) == (caddr_t)MAP_FAILED) exit(1);
458	+	struct sigaction sa; sa.sa_flags = 0;
459	+	sa.sa_handler = (RETSIGTYPE (*)(int))segfault_handler;
460	+	sigaction(SIGSEGV, &sa, 0);
461	+	mem[0] = 0;
462	+	exit(1); // should not be reached
463	+	}
464	+	],
465	+	[ac_cv_have_sigcontext_hack=yes],
466	+	[ac_cv_have_sigcontext_hack=no]
467	+	)
468	+	AC_LANG_RESTORE
469	+	])
470	+	AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, $ac_cv_have_sigcontext_hack)
471	+	fi
472	+	;;
473	+	esac
474	+	fi
475	+
476	+	dnl Can we do Video on SEGV Signals ?
477	+	CAN_VOSF=no
478	+	if [[ "$ac_cv_have_extended_signals" = "yes" -o "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
479	+	CAN_VOSF=yes
480	+	fi
481	+
482	+	dnl Determine the addressing mode to use
483	+	if [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
484	+	ADDRESSING_MODE="real"
485	+	else
486	+	ADDRESSING_MODE=""
487	+	AC_MSG_CHECKING([for the addressing mode to use])
488	+	for am in $ADDRESSING_TEST_ORDER; do
489	+	case $am in
490	+	real)
491	+	dnl Requires ability to mmap() Low Memory globals
492	+	if [[ "x$ac_cv_can_map_lm" = "xno" ]]; then
493	+	continue
494	+	fi
495	+	dnl Requires VOSF screen updates
496	+	if [[ "x$CAN_VOSF" = "xno" ]]; then
497	+	continue
498	+	fi
499	+	dnl Real addressing will probably work.
500	+	ADDRESSING_MODE="real"
501	+	WANT_VOSF=yes dnl we can use VOSF and we need it actually
502	+	DEFINES="$DEFINES -DREAL_ADDRESSING"
503	+	break
504	+	;;
505	+	direct)
506	+	dnl Requires VOSF screen updates
507	+	if [[ "x$CAN_VOSF" = "xyes" ]]; then
508	+	ADDRESSING_MODE="direct"
509	+	WANT_VOSF=yes dnl we can use VOSF and we need it actually
510	+	DEFINES="$DEFINES -DDIRECT_ADDRESSING"
511	+	break
512	+	fi
513	+	;;
514	+	banks)
515	+	dnl Default addressing mode
516	+	ADDRESSING_MODE="memory banks"
517	+	break
518	+	;;
519	+	*)
520	+	AC_MSG_ERROR([Internal configure.in script error for $am addressing mode])
521	+	esac
522	+	done
523	+	AC_MSG_RESULT($ADDRESSING_MODE)
524	+	if [[ "x$ADDRESSING_MODE" = "x" ]]; then
525	+	AC_MSG_WARN([Sorry, no suitable addressing mode in $ADDRESSING_TEST_ORDER])
526	+	ADDRESSING_MODE="memory banks"
527	+	fi
528	+	fi
529	+
530	+	dnl Enable VOSF screen updates with this feature is requested and feasible
531	+	if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then
532	+	AC_DEFINE(ENABLE_VOSF)
533	+	else
534	+	WANT_VOSF=no
535	+	fi
536	+
537		dnl Check for GAS.
538		HAVE_GAS=no
539		AC_MSG_CHECKING(for GAS .p2align feature)
#	Line 285 | Line 560 | if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE
560		fi
561
562		dnl Select appropriate CPU source and REGPARAM define.
563	<	WANT_X86_ASSEMBLY=no
289	<	WANT_SPARC_V8_ASSEMBLY=no
290	<	WANT_SPARC_V9_ASSEMBLY=no
291	<	WANT_NATIVE_M68K=no
563	>	ASM_OPTIMIZATIONS=none
564		CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
565	+	FPUSRCS="../uae_cpu/fpp.cpp"
566		if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
567		dnl i386 CPU
568		DEFINES="$DEFINES -DREGPARAM=\"__attribute__((regparm(3)))\""
569		if [[ "x$HAVE_GAS" = "xyes" ]]; then
570	<	WANT_X86_ASSEMBLY=yes
571	<	DEFINES="$DEFINES -DX86_ASSEMBLY"
570	>	ASM_OPTIMIZATIONS=i386
571	>	DEFINES="$DEFINES -DX86_ASSEMBLY -DUNALIGNED_PROFITABLE -DOPTIMIZED_FLAGS"
572		CPUSRCS="../uae_cpu/compiler.cpp cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
573	+	FPUSRCS="../uae_cpu/fpu_x86.cpp"
574		fi
575		elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
576		dnl SPARC CPU
577	<	case "$MACHINE" in
578	<	SunOS*)
577	>	case "$target_os" in
578	>	solaris*)
579		AC_MSG_CHECKING(SPARC CPU architecture)
580		SPARC_TYPE=`Solaris/which_sparc`
581		AC_MSG_RESULT($SPARC_TYPE)
582		case "$SPARC_TYPE" in
583		SPARC_V8)
584	<	WANT_SPARC_V8_ASSEMBLY=yes
585	<	DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY"
584	>	ASM_OPTIMIZATIONS="SPARC V8 architecture"
585	>	DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
586		CFLAGS="$CFLAGS -Wa,-Av8"
587		CXXFLAGS="$CXXFLAGS -Wa,-Av8"
588		;;
589		SPARC_V9)
590	<	WANT_SPARC_V9_ASSEMBLY=yes
591	<	DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY"
590	>	ASM_OPTIMIZATIONS="SPARC V9 architecture"
591	>	DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
592		CFLAGS="$CFLAGS -Wa,-Av9"
593		CXXFLAGS="$CXXFLAGS -Wa,-Av9"
594		;;
595		esac
596		;;
597		esac
598	<	elif [[ "x$HAVE_M68K" = "xyes" -a "x$SUPPORTS_NATIVE_M68K" = "xyes" ]]; then
598	>	elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
599		dnl Native m68k, no emulation
600	<	CPUSRCS=""
601	<	AC_DEFINE(ENABLE_NATIVE_M68K)
328	<	WANT_NATIVE_M68K=yes
600	>	CPUINCLUDES="-I../native_cpu"
601	>	CPUSRCS="asm_support.s"
602		fi
603
604		dnl UAE CPU sources for all non-m68k-native architectures.
605		if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
606		CPUINCLUDES="-I../uae_cpu"
607	<	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"
608	<	else
609	<	CPUINCLUDES="-I../native_cpu"
610	<	CPUSRCS="asm_support.s"
607	>	CPUSRCS="../uae_cpu/basilisk_glue.cpp ../uae_cpu/memory.cpp ../uae_cpu/newcpu.cpp ../uae_cpu/readcpu.cpp $FPUSRCS cpustbl.cpp cpudefs.cpp $CPUSRCS"
608	>	fi
609	>
610	>	dnl Remove the "-g" option if set for GCC.
611	>	if [[ "x$HAVE_GCC27" = "xyes" ]]; then
612	>	dnl gb-- Probably not the cleanest way to take
613	>	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
614	>	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
615		fi
616
617		dnl Generate Makefile.
#	Line 351 | Line 628 | echo
628		echo XFree86 DGA support .............. : $WANT_XF86_DGA
629		echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
630		echo fbdev DGA support ................ : $WANT_FBDEV_DGA
631	+	echo Enable video on SEGV signals ..... : $WANT_VOSF
632		echo ESD sound support ................ : $WANT_ESD
633		echo GTK user interface ............... : $WANT_GTK
634		echo mon debugger support ............. : $WANT_MON
357	–	echo i386 assembly optimizations ...... : $WANT_X86_ASSEMBLY
358	–	echo SPARC V8 assembly optimizations .. : $WANT_SPARC_V8_ASSEMBLY
359	–	echo SPARC V9 assembly optimizations .. : $WANT_SPARC_V9_ASSEMBLY
635		echo Running m68k code natively ....... : $WANT_NATIVE_M68K
636	+	echo Assembly optimizations ........... : $ASM_OPTIMIZATIONS
637	+	echo Addressing mode .................. : $ADDRESSING_MODE
638		echo
639		echo "Configuration done. Now type \"make\" (or \"gmake\")."

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