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

Comparing BasiliskII/src/Unix/configure.in (file contents):
Revision 1.33 by cebix, 2001-02-10T15:29:01Z vs.
Revision 1.45 by cebix, 2001-07-01T14:38:02Z

#	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])
12	>	AC_ARG_ENABLE(vosf,          [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
13	>
14	>	dnl FPU emulation core.
15	>	AC_ARG_ENABLE(fpe,
16	>	[  --enable-fpe=which      specify which fpu emulator to use [default=opt]],
17	>	[ case "$enableval" in
18	>	default)    FPE_CORE="default";; dnl fpu_x86.cpp if i386 architecture, fpu_uae.cpp otherwise
19	>	uae)            FPE_CORE="uae";;
20	>	*)                      AC_MSG_ERROR([--enable-fpe takes only one of the following values: default, uae]);;
21	>	esac
22	>	],
23	>	[ FPE_CORE="default"
24	>	])
25
26		dnl Addressing modes.
27		AC_ARG_ENABLE(addressing,
#	Line 40 | Line 52 | case "$target_os" in
52		netbsd*)      OS_TYPE=netbsd;;
53		freebsd*)     OS_TYPE=freebsd;;
54		solaris*)     OS_TYPE=solaris;;
55	<	*)            OS_TYPE=`echo $target_os | sed -e 's/-/_/' | sed -e 's/\./_/'`;;
55	>	darwin*)      OS_TYPE=darwin;;
56	>	*)            OS_TYPE=`echo $target_os | sed -e 's/-/_/g' | sed -e 's/\./_/g'`;;
57		esac
58		DEFINES="$DEFINES -DOS_$OS_TYPE"
59
#	Line 54 | Line 67 | case "$target_cpu" in
67		m68k* ) CPU_TYPE=m68k HAVE_M68K=yes;;
68		sparc* ) CPU_TYPE=sparc HAVE_SPARC=yes;;
69		powerpc* ) CPU_TYPE=powerpc HAVE_POWERPC=yes;;
70	<	*) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/'`;;
70	>	*) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/g'`;;
71		esac
72		DEFINES="$DEFINES -DCPU_$CPU_TYPE"
73
#	Line 88 | Line 101 | fi
101
102		dnl Checks for libraries.
103		AC_CHECK_LIB(posix4, sem_init)
104	+	AC_CHECK_LIB(rt, timer_create)
105
106		dnl We need X11.
107		AC_PATH_XTRA
#	Line 179 | Line 193 | fi
193
194		dnl Checks for header files.
195		AC_HEADER_STDC
196	<	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h)
196	>	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h)
197
198		dnl Checks for typedefs, structures, and compiler characteristics.
199		AC_C_BIGENDIAN
#	Line 200 | Line 214 | AC_STRUCT_TM
214		dnl Checks for library functions.
215		AC_CHECK_FUNCS(strdup cfmakeraw)
216		AC_CHECK_FUNCS(clock_gettime timer_create)
217	+	AC_CHECK_FUNCS(sigaction signal)
218	+	AC_CHECK_FUNCS(mmap mprotect munmap)
219	+	AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
220	+
221	+	dnl Darwin seems to define mach_task_self() instead of task_self().
222	+	AC_CHECK_FUNCS(mach_task_self task_self)
223
224		dnl Select system-dependant source files.
225		SERIALSRC=serial_unix.cpp
#	Line 210 | Line 230 | EXTRASYSSRCS=
230		CAN_NATIVE_M68K=no
231		case "$target_os" in
232		linux*)
233	<	ETHERSRC=Linux/ether_linux.cpp
214	<	SCSISRC=Linux/scsi_linux.cpp
233	>	ETHERSRC=ether_unix.cpp
234		AUDIOSRC=audio_oss_esd.cpp
235	+	SCSISRC=Linux/scsi_linux.cpp
236		;;
237	<	freebsd*3.*)
237	>	freebsd*)
238	>	ETHERSRC=ether_unix.cpp
239		AUDIOSRC=audio_oss_esd.cpp
240		DEFINES="$DEFINES -DBSD_COMP"
241	+	CXXFLAGS="$CXXFLAGS -fpermissive"
242		dnl Check for the CAM library
243		AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
244		if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
245		AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
246		else
247		dnl Check for the sys kernel includes
248	<	AC_CHECK_HEADER(/sys/cam/cam.h)
249	<	if [[ "x$ac_cv_header__sys_cam_cam_h" = "xno" ]]; then
248	>	AC_CHECK_HEADER(camlib.h)
249	>	if [[ "x$ac_cv_header_camlib_h" = "xno" ]]; then
250		dnl In this case I should fix this thing including a "patch"
251		dnl to access directly to the functions in the kernel :) --Orlando
252	<	AC_MSG_WARN([Cannot find kernel includes for CAM library, disabling SCSI support.])
252	>	AC_MSG_WARN([Cannot find includes for CAM library, disabling SCSI support.])
253		else
254		SCSISRC=FreeBSD/scsi_freebsd.cpp
233	–	CXXFLAGS="$CXXFLAGS -I/sys"
234	–	CFLAGS="$CFLAGS -I/sys"
255		LIBS="$LIBS -lcam"
256		DEFINES="$DEFINES -DCAM"
257		fi
258		fi
259		;;
240	–	freebsd*)
241	–	DEFINES="$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	–	SCSISRC=FreeBSD/scsi_freebsd.cpp
253	–	LIBS="$LIBS -lscsi"
254	–	fi
255	–	fi
256	–	;;
260		netbsd*)
261		CAN_NATIVE_M68K=yes
262		;;
#	Line 267 | Line 270 | irix*)
270		dnl IRIX headers work fine, but somehow don't define or use "STDC_HEADERS"
271		DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200 -DSTDC_HEADERS"
272		LIBS="$LIBS -laudio"
273	+
274	+	dnl Check if our compiler supports -Ofast (MIPSPro)
275	+	HAVE_OFAST=no
276	+	ocflags="$CFLAGS"
277	+	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / -Ofast /;s/^-g /-Ofast /;s/-g$/ -Ofast/;s/^-g$/-Ofast/'`
278	+	AC_MSG_CHECKING(if "-Ofast" works)
279	+	dnl Do a test compile of an empty function
280	+	AC_TRY_COMPILE(,, [AC_MSG_RESULT(yes); HAVE_OFAST=yes], AC_MSG_RESULT(no))
281	+	CFLAGS="$ocflags"
282	+
283		;;
284		esac
285
#	Line 291 | Line 304 | dnl to be put into the config.h file
304		dnl $1 -- the macro to define
305		dnl $2 -- the value to translate
306		AC_DEFUN(AC_TRANSLATE_DEFINE, [
307	<	if [[ "x$2" = "xyes" ]]; then
307	>	if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
308		AC_DEFINE($1)
309		fi
310		])
311
312	+	dnl Various checks if the system supports vm_allocate() and the like functions.
313	+	have_mach_vm=no
314	+	if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
315	+	"x$ac_cv_func_vm_protect" = "xyes" ]]; then
316	+	have_mach_vm=yes
317	+	fi
318	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
319	+
320	+	dnl Check that vm_allocate(), vm_protect() work
321	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
322	+
323	+	AC_CACHE_CHECK("whether vm_protect works",
324	+	ac_cv_vm_protect_works, [
325	+	AC_LANG_SAVE
326	+	AC_LANG_CPLUSPLUS
327	+	ac_cv_vm_protect_works=yes
328	+	dnl First the tests that should segfault
329	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
330	+	AC_TRY_RUN([
331	+	#define CONFIGURE_TEST_VM_MAP
332	+	#define TEST_VM_PROT_$test_def
333	+	#include "vm_alloc.cpp"
334	+	], ac_cv_vm_protect_works=no, rm -f core,
335	+	dnl When cross-compiling, do not assume anything
336	+	ac_cv_vm_protect_works="guessing no"
337	+	)
338	+	done
339	+	AC_TRY_RUN([
340	+	#define CONFIGURE_TEST_VM_MAP
341	+	#define TEST_VM_PROT_RDWR_WRITE
342	+	#include "vm_alloc.cpp"
343	+	], , ac_cv_vm_protect_works=no,
344	+	dnl When cross-compiling, do not assume anything
345	+	ac_cv_vm_protect_works="guessing no"
346	+	)
347	+	AC_LANG_RESTORE
348	+	]
349	+	)
350	+
351	+	dnl Remove support for vm_allocate() if vm_protect() does not work
352	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
353	+	case $ac_cv_vm_protect_works in
354	+	*yes) have_mach_vm=yes;;
355	+	*no) have_mach_vm=no;;
356	+	esac
357	+	fi
358	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
359	+
360	+	fi dnl HAVE_MACH_VM
361	+
362	+	dnl Various checks if the system supports mmap() and the like functions.
363	+	dnl ... and Mach memory allocators are not supported
364	+	have_mmap_vm=no
365	+	if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
366	+	"x$ac_cv_func_mprotect" = "xyes" ]]; then
367	+	if [[ "x$have_mach_vm" = "xno" ]]; then
368	+	have_mmap_vm=yes
369	+	fi
370	+	fi
371	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm")
372	+
373	+	dnl Check that mmap() and associated functions work.
374	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
375	+
376	+	dnl Check if we have a working anonymous mmap()
377	+	AC_CACHE_CHECK("whether mmap supports MAP_ANON",
378	+	ac_cv_mmap_anon, [
379	+	AC_LANG_SAVE
380	+	AC_LANG_CPLUSPLUS
381	+	AC_TRY_RUN([
382	+	#define HAVE_MMAP_ANON
383	+	#define CONFIGURE_TEST_VM_MAP
384	+	#define TEST_VM_MMAP_ANON
385	+	#include "vm_alloc.cpp"
386	+	], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
387	+	dnl When cross-compiling, do not assume anything.
388	+	ac_cv_mmap_anon="guessing no"
389	+	)
390	+	AC_LANG_RESTORE
391	+	]
392	+	)
393	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon")
394	+
395	+	AC_CACHE_CHECK("whether mmap supports MAP_ANONYMOUS",
396	+	ac_cv_mmap_anonymous, [
397	+	AC_LANG_SAVE
398	+	AC_LANG_CPLUSPLUS
399	+	AC_TRY_RUN([
400	+	#define HAVE_MMAP_ANONYMOUS
401	+	#define CONFIGURE_TEST_VM_MAP
402	+	#define TEST_VM_MMAP_ANON
403	+	#include "vm_alloc.cpp"
404	+	], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
405	+	dnl When cross-compiling, do not assume anything.
406	+	ac_cv_mmap_anonymous="guessing no"
407	+	)
408	+	AC_LANG_RESTORE
409	+	]
410	+	)
411	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous")
412	+
413	+	AC_CACHE_CHECK("whether mprotect works",
414	+	ac_cv_mprotect_works, [
415	+	AC_LANG_SAVE
416	+	AC_LANG_CPLUSPLUS
417	+	ac_cv_mprotect_works=yes
418	+	dnl First the tests that should segfault
419	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
420	+	AC_TRY_RUN([
421	+	#define CONFIGURE_TEST_VM_MAP
422	+	#define TEST_VM_PROT_$test_def
423	+	#include "vm_alloc.cpp"
424	+	], ac_cv_mprotect_works=no, rm -f core,
425	+	dnl When cross-compiling, do not assume anything
426	+	ac_cv_mprotect_works="guessing no"
427	+	)
428	+	done
429	+	AC_TRY_RUN([
430	+	#define CONFIGURE_TEST_VM_MAP
431	+	#define TEST_VM_PROT_RDWR_WRITE
432	+	#include "vm_alloc.cpp"
433	+	], , ac_cv_mprotect_works=no,
434	+	dnl When cross-compiling, do not assume anything
435	+	ac_cv_mprotect_works="guessing no"
436	+	)
437	+	AC_LANG_RESTORE
438	+	]
439	+	)
440	+
441	+	dnl Remove support for mmap() if mprotect() does not work
442	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
443	+	case $ac_cv_mprotect_works in
444	+	*yes) have_mmap_vm=yes;;
445	+	*no) have_mmap_vm=no;;
446	+	esac
447	+	fi
448	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm)
449	+
450	+	fi dnl HAVE_MMAP_VM
451	+
452		dnl Check if we can mmap 0x2000 bytes from 0x0000
453		AC_CACHE_CHECK("whether we can map Low Memory area 0x0000-0x2000",
454		ac_cv_can_map_lm, [
455		AC_LANG_SAVE
456		AC_LANG_CPLUSPLUS
457		AC_TRY_RUN([
458	<	#include <unistd.h>
459	<	#include <fcntl.h>
460	<	#include <sys/mman.h>
461	<
462	<	int main()
463	<	{ int zero_fd; char * lm;
464	<	if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
465	<	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);
458	>	#include "vm_alloc.cpp"
459	>	int main(void) { /* returns 0 if we could map the lowmem globals */
460	>	volatile char * lm;
461	>	if (vm_init() < 0) exit(1);
462	>	if ((lm = (volatile char *)vm_acquire_fixed(0, 0x2000)) == VM_MAP_FAILED) exit(1);
463	>	lm[0] = 'z';
464	>	if (vm_release((char *)lm, 0x2000) < 0) exit(1);
465	>	vm_exit(); exit(0);
466		}
467	<	],
468	<	[ac_cv_can_map_lm=yes],
469	<	[ac_cv_can_map_lm=no]
467	>	], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
468	>	dnl When cross-compiling, do not assume anything.
469	>	ac_cv_can_map_lm="guessing no"
470		)
471		AC_LANG_RESTORE
472		]
473		)
474
475	<	dnl Check if extended signals are supported.
476	<	AC_CACHE_CHECK("whether your system supports extended signal handlers",
477	<	ac_cv_have_extended_signals, [
475	>	dnl Check signal handlers need to be reinstalled
476	>	AC_CACHE_CHECK("whether signal handlers need to be reinstalled",
477	>	ac_cv_signal_need_reinstall, [
478		AC_LANG_SAVE
479		AC_LANG_CPLUSPLUS
480		AC_TRY_RUN([
332	–	#include <unistd.h>
481		#include <stdlib.h>
482	+	#ifdef HAVE_UNISTD_H
483	+	#include <unistd.h>
484	+	#endif
485		#include <signal.h>
486	<	#include <fcntl.h>
487	<	#include <sys/mman.h>
488	<
489	<	static volatile caddr_t mem = 0;
490	<	static int zero_fd = -1;
486	>	static int handled_signal = 0;
487	>	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
488	>	int main(void) { /* returns 0 if signals need not to be reinstalled */
489	>	signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
490	>	exit(handled_signal == 2);
491	>	}
492	>	], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
493	>	dnl When cross-compiling, do not assume anything.
494	>	ac_cv_signal_need_reinstall="guessing yes"
495	>	)
496	>	AC_LANG_RESTORE
497	>	]
498	>	)
499	>	AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall")
500
501	<	static RETSIGTYPE segfault_handler(int, siginfo_t * sip, void *)
502	<	{ if ((caddr_t)(sip->si_addr) != mem) exit(1);
503	<	munmap(mem, getpagesize()); close(zero_fd); exit(0); }
504	<
505	<	int main()
506	<	{ if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
507	<	if ((mem = (caddr_t)mmap(0, getpagesize(), PROT_READ, MAP_PRIVATE, zero_fd, 0)) == (caddr_t)MAP_FAILED) exit(1);
508	<	struct sigaction sa; sa.sa_sigaction = segfault_handler; sa.sa_flags = SA_SIGINFO;
509	<	sigaction(SIGSEGV, &sa, 0);
510	<	mem[0] = 0;
511	<	exit(1); // should not be reached
501	>	dnl Check if sigaction handlers need to be reinstalled
502	>	AC_CACHE_CHECK("whether sigaction handlers need to be reinstalled",
503	>	ac_cv_sigaction_need_reinstall, [
504	>	AC_LANG_SAVE
505	>	AC_LANG_CPLUSPLUS
506	>	AC_TRY_RUN([
507	>	#include <stdlib.h>
508	>	#ifdef HAVE_UNISTD_H
509	>	#include <unistd.h>
510	>	#endif
511	>	#include <signal.h>
512	>	static int handled_signal = 0;
513	>	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
514	>	typedef RETSIGTYPE (*signal_handler)(int);
515	>	static signal_handler mysignal(int sig, signal_handler handler) {
516	>	struct sigaction old_sa;
517	>	struct sigaction new_sa;
518	>	new_sa.sa_handler = handler;
519	>	return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
520	>	}
521	>	int main(void) { /* returns 0 if signals need not to be reinstalled */
522	>	mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
523	>	exit(handled_signal == 2);
524		}
525	<	],
526	<	[ac_cv_have_extended_signals=yes],
527	<	[ac_cv_have_extended_signals=no]
525	>	], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
526	>	dnl When cross-compiling, do not assume anything.
527	>	ac_cv_sigaction_need_reinstall="guessing yes"
528	>	)
529	>	AC_LANG_RESTORE
530	>	]
531	>	)
532	>	AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall")
533	>
534	>	dnl Check if extended signals are supported.
535	>	AC_CACHE_CHECK("whether your system supports extended signal handlers",
536	>	ac_cv_have_extended_signals, [
537	>	AC_LANG_SAVE
538	>	AC_LANG_CPLUSPLUS
539	>	AC_TRY_RUN([
540	>	#define HAVE_SIGINFO_T 1
541	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
542	>	#include "vm_alloc.cpp"
543	>	#include "sigsegv.cpp"
544	>	], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
545	>	dnl When cross-compiling, do not assume anything.
546	>	ac_cv_have_extended_signals=no
547		)
548		AC_LANG_RESTORE
549		]
#	Line 361 | Line 552 | AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac
552
553		dnl Otherwise, check for subterfuges.
554		if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
555	<	case "$target_os" in
556	<	linux*)
557	<	if [[ "x$HAVE_I386" = "xyes" ]]; then
558	<	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
559	<	ac_cv_have_sigcontext_hack, [
560	<	AC_LANG_SAVE
561	<	AC_LANG_CPLUSPLUS
562	<	AC_TRY_RUN([
563	<	#include <unistd.h>
564	<	#include <signal.h>
565	<	#include <fcntl.h>
566	<	#include <sys/mman.h>
567	<
568	<	static volatile caddr_t mem = 0;
569	<	static int zero_fd = -1;
570	<
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, $ac_cv_have_sigcontext_hack)
471	<	fi
472	<	;;
473	<	esac
555	>	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
556	>	ac_cv_have_sigcontext_hack, [
557	>	AC_LANG_SAVE
558	>	AC_LANG_CPLUSPLUS
559	>	AC_TRY_RUN([
560	>	#define HAVE_SIGCONTEXT_SUBTERFUGE 1
561	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
562	>	#include "vm_alloc.cpp"
563	>	#include "sigsegv.cpp"
564	>	], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
565	>	dnl When cross-compiling, do not assume anything.
566	>	ac_cv_have_sigcontext_hack=no
567	>	)
568	>	AC_LANG_RESTORE
569	>	])
570	>	AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack")
571		fi
572
573		dnl Can we do Video on SEGV Signals ?
#	Line 562 | Line 659 | fi
659		dnl Select appropriate CPU source and REGPARAM define.
660		ASM_OPTIMIZATIONS=none
661		CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
662	<	FPUSRCS="../uae_cpu/fpp.cpp"
663	<	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
662	>	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
663	>	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$OS_TYPE" != "xfreebsd" ]]; then
664		dnl i386 CPU
665		DEFINES="$DEFINES -DREGPARAM=\"__attribute__((regparm(3)))\""
666		if [[ "x$HAVE_GAS" = "xyes" ]]; then
667		ASM_OPTIMIZATIONS=i386
668		DEFINES="$DEFINES -DX86_ASSEMBLY -DUNALIGNED_PROFITABLE -DOPTIMIZED_FLAGS"
669	<	CPUSRCS="../uae_cpu/compiler.cpp cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
669	>	CPUSRCS="cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
670		FPUSRCS="../uae_cpu/fpu_x86.cpp"
671		fi
672		elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
#	Line 601 | Line 698 | elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]
698		CPUSRCS="asm_support.s"
699		fi
700
701	+	dnl Select appropriate FPU source.
702	+	dnl 1. Optimized X86 assembly core if target is i386 architecture
703	+	SAVED_DEFINES=$DEFINES
704	+	if [[ "x$FPE_CORE" = "xdefault" ]]; then
705	+	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
706	+	DEFINES="$DEFINES -DFPU_X86"
707	+	FPE_CORE_STR="i386 optimized core"
708	+	FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
709	+	else
710	+	FPE_CORE="uae"
711	+	fi
712	+	fi
713	+
714	+	dnl 2. JIT-FPU only supports IEEE-based implementation.
715	+	if [[ "x$WANT_JIT_FPU" = "xyes" -a "x$FPE_CORE" != "xieee" ]]; then
716	+	AC_MSG_WARN([Sorry, JIT-FPU supports only the "ieee" FPE implementation])
717	+	FPE_CORE="ieee"
718	+	dnl Restore previous variables. FPE_CORE_STR and FPUSRCS are overwritten
719	+	DEFINES=$SAVED_DEFINES
720	+	fi
721	+
722	+	dnl 3. Choose either IEEE-based implementation or the old UAE core
723	+	if [[ "x$FPE_CORE" = "xieee" ]]; then
724	+	AC_CHECK_HEADERS(fenv.h)
725	+	AC_CHECK_FUNCS(feclearexcept fegetexceptflag feraiseexcept fesetexceptflag fetestexcept)
726	+	AC_CHECK_FUNCS(fegetround fesetround)
727	+	DEFINES="$DEFINES -DFPU_IEEE"
728	+	FPE_CORE_STR="ieee-based fpu core"
729	+	FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
730	+	elif [[ "x$FPE_CORE" = "xuae" ]]; then
731	+	DEFINES="$DEFINES -DFPU_UAE"
732	+	FPE_CORE_STR="original uae core"
733	+	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
734	+	fi
735	+
736	+	dnl Check for certain math functions
737	+	AC_CHECK_FUNCS(atanh)
738	+	AC_CHECK_FUNCS(isnan isinf)             dnl C99
739	+	AC_CHECK_FUNCS(isnanl isinfl)   dnl IEEE ?
740	+
741		dnl UAE CPU sources for all non-m68k-native architectures.
742		if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
743		CPUINCLUDES="-I../uae_cpu"
#	Line 609 | Line 746 | fi
746
747		dnl Remove the "-g" option if set for GCC.
748		if [[ "x$HAVE_GCC27" = "xyes" ]]; then
749	<	dnl gb-- Probably not the cleanest way to take
750	<	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
751	<	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
749	>	CFLAGS=`echo $CFLAGS | sed -e 's/-g//g'`
750	>	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g//g'`
751	>	fi
752	>
753	>	dnl Or if we have -Ofast
754	>	if [[ "x$HAVE_OFAST" = "xyes" ]]; then
755	>	CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -Ofast"
756	>	CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -Ofast"
757	>	CXXFLAGS="-LANG:std $CXXFLAGS"
758	>	LDFLAGS="$LDFLAGS -Ofast"
759		fi
760
761		dnl Generate Makefile.
#	Line 633 | Line 777 | echo ESD sound support ................
777		echo GTK user interface ............... : $WANT_GTK
778		echo mon debugger support ............. : $WANT_MON
779		echo Running m68k code natively ....... : $WANT_NATIVE_M68K
780	+	echo Floating-Point emulation core .... : $FPE_CORE_STR
781		echo Assembly optimizations ........... : $ASM_OPTIMIZATIONS
782		echo Addressing mode .................. : $ADDRESSING_MODE
783		echo

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