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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 1.54 by gbeauche, 2002-03-16T10:12:49Z

#	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)
6		AC_CONFIG_HEADER(config.h)
7
8	+	dnl These defines are necessary to get 64-bit file size support.
9	+	AC_DEFINE(_USE_LARGEFILE_SOURCE, 1, [Get more functions for correct standard I/O])
10	+	AC_DEFINE(_FILE_OFFSET_BITS, 64, [Get 64-bit file size support])
11	+
12		dnl Options.
13		AC_ARG_ENABLE(xf86-dga,      [  --enable-xf86-dga       use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
14		AC_ARG_ENABLE(xf86-vidmode,  [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
15		AC_ARG_ENABLE(fbdev-dga,     [  --enable-fbdev-dga      use direct frame buffer access via /dev/fb [default=yes]], [WANT_FBDEV_DGA=$enableval], [WANT_FBDEV_DGA=yes])
16	<	AC_ARG_ENABLE(vosf,          [  --enable-vosf           enable video on SEGV signals [default=no]], [WANT_VOSF=$enableval], [WANT_VOSF=no])
16	>	AC_ARG_ENABLE(vosf,          [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
17	>
18	>	dnl FPU emulation core.
19	>	AC_ARG_ENABLE(fpe,
20	>	[  --enable-fpe=which      specify which fpu emulator to use [default=opt]],
21	>	[ case "$enableval" in
22	>	default)    FPE_CORE="default";; dnl fpu_x86.cpp if i386 architecture, fpu_uae.cpp otherwise
23	>	uae)            FPE_CORE="uae";;
24	>	*)                      AC_MSG_ERROR([--enable-fpe takes only one of the following values: default, uae]);;
25	>	esac
26	>	],
27	>	[ FPE_CORE="default"
28	>	])
29
30		dnl Addressing modes.
31		AC_ARG_ENABLE(addressing,
#	Line 40 | Line 56 | case "$target_os" in
56		netbsd*)      OS_TYPE=netbsd;;
57		freebsd*)     OS_TYPE=freebsd;;
58		solaris*)     OS_TYPE=solaris;;
59	<	*)            OS_TYPE=`echo $target_os | sed -e 's/-/_/' | sed -e 's/\./_/'`;;
59	>	darwin*)      OS_TYPE=darwin;;
60	>	*)            OS_TYPE=`echo $target_os | sed -e 's/-/_/g' | sed -e 's/\./_/g'`;;
61		esac
62		DEFINES="$DEFINES -DOS_$OS_TYPE"
63
#	Line 54 | Line 71 | case "$target_cpu" in
71		m68k* ) CPU_TYPE=m68k HAVE_M68K=yes;;
72		sparc* ) CPU_TYPE=sparc HAVE_SPARC=yes;;
73		powerpc* ) CPU_TYPE=powerpc HAVE_POWERPC=yes;;
74	<	*) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/'`;;
74	>	*) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/g'`;;
75		esac
76		DEFINES="$DEFINES -DCPU_$CPU_TYPE"
77
#	Line 74 | Line 91 | if [[ "x$WANT_MON" = "xyes" ]]; then
91		if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
92		AC_MSG_RESULT(yes)
93		AC_DEFINE(ENABLE_MON)
94	<	MONSRCS="$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 $mon_srcdir/disass/m68k-opc.c"
94	>	MONSRCS="$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 $mon_srcdir/disass/m68k-opc.c"
95		CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
96		AC_CHECK_LIB(readline, readline)
97		AC_CHECK_LIB(termcap, tputs)
#	Line 88 | Line 105 | fi
105
106		dnl Checks for libraries.
107		AC_CHECK_LIB(posix4, sem_init)
108	+	AC_CHECK_LIB(rt, timer_create)
109
110		dnl We need X11.
111		AC_PATH_XTRA
#	Line 111 | Line 129 | if [[ "x$HAVE_PTHREADS" = "xyes" ]]; the
129		AC_DEFINE(HAVE_PTHREADS)
130		fi
131		AC_CHECK_FUNCS(pthread_cancel)
132	+	AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
133	+	AC_CHECK_FUNCS(pthread_mutexattr_settype)
134
135		dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
136		SEMSRC=
#	Line 154 | Line 174 | UISRCS=../dummy/prefs_editor_dummy.cpp
174		if [[ "x$WANT_GTK" = "xyes" ]]; then
175		AM_PATH_GTK(1.2.0, [
176		AC_DEFINE(ENABLE_GTK)
157	–	CFLAGS="$CFLAGS $GTK_CFLAGS"
177		CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
178		LIBS="$LIBS $GTK_LIBS"
179		UISRCS=prefs_editor_gtk.cpp
180	+	B2_PATH_GNOMEUI([
181	+	AC_DEFINE(HAVE_GNOMEUI)
182	+	CXXFLAGS="$CXXFLAGS $GNOMEUI_CFLAGS"
183	+	LIBS="$LIBS $GNOMEUI_LIBS"
184	+	], [])
185		], [
186		AC_MSG_WARN([Could not find GTK+, disabling user interface.])
187		WANT_GTK=no
#	Line 179 | Line 203 | fi
203
204		dnl Checks for header files.
205		AC_HEADER_STDC
206	<	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h)
206	>	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h)
207
208		dnl Checks for typedefs, structures, and compiler characteristics.
209		AC_C_BIGENDIAN
#	Line 197 | Line 221 | AC_TYPE_SIGNAL
221		AC_HEADER_TIME
222		AC_STRUCT_TM
223
224	+	dnl Check whether sys/socket.h defines type socklen_t.
225	+	dnl (extracted from ac-archive/Miscellaneous)
226	+	AC_CACHE_CHECK("for socklen_t",
227	+	ac_cv_type_socklen_t, [
228	+	AC_TRY_COMPILE([
229	+	#include <sys/types.h>
230	+	#include <sys/socket.h>
231	+	], [socklen_t len = 42; return 0;],
232	+	ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
233	+	dnl When cross-compiling, do not assume anything.
234	+	ac_cv_type_socklen_t="guessing no"
235	+	)
236	+	])
237	+	if [[ "x$ac_cv_type_socklen_t" != "xyes" ]]; then
238	+	AC_DEFINE(socklen_t, int)
239	+	fi
240	+
241		dnl Checks for library functions.
242		AC_CHECK_FUNCS(strdup cfmakeraw)
243		AC_CHECK_FUNCS(clock_gettime timer_create)
244	+	AC_CHECK_FUNCS(sigaction signal)
245	+	AC_CHECK_FUNCS(mmap mprotect munmap)
246	+	AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
247	+
248	+	dnl Darwin seems to define mach_task_self() instead of task_self().
249	+	AC_CHECK_FUNCS(mach_task_self task_self)
250
251		dnl Select system-dependant source files.
252		SERIALSRC=serial_unix.cpp
#	Line 210 | Line 257 | EXTRASYSSRCS=
257		CAN_NATIVE_M68K=no
258		case "$target_os" in
259		linux*)
260	<	ETHERSRC=Linux/ether_linux.cpp
214	<	SCSISRC=Linux/scsi_linux.cpp
260	>	ETHERSRC=ether_unix.cpp
261		AUDIOSRC=audio_oss_esd.cpp
262	+	SCSISRC=Linux/scsi_linux.cpp
263		;;
264	<	freebsd*3.*)
264	>	freebsd*)
265	>	ETHERSRC=ether_unix.cpp
266		AUDIOSRC=audio_oss_esd.cpp
267		DEFINES="$DEFINES -DBSD_COMP"
268	+	CXXFLAGS="$CXXFLAGS -fpermissive"
269		dnl Check for the CAM library
270		AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
271		if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
272		AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
273		else
274		dnl Check for the sys kernel includes
275	<	AC_CHECK_HEADER(/sys/cam/cam.h)
276	<	if [[ "x$ac_cv_header__sys_cam_cam_h" = "xno" ]]; then
275	>	AC_CHECK_HEADER(camlib.h)
276	>	if [[ "x$ac_cv_header_camlib_h" = "xno" ]]; then
277		dnl In this case I should fix this thing including a "patch"
278		dnl to access directly to the functions in the kernel :) --Orlando
279	<	AC_MSG_WARN([Cannot find kernel includes for CAM library, disabling SCSI support.])
279	>	AC_MSG_WARN([Cannot find includes for CAM library, disabling SCSI support.])
280		else
281		SCSISRC=FreeBSD/scsi_freebsd.cpp
233	–	CXXFLAGS="$CXXFLAGS -I/sys"
234	–	CFLAGS="$CFLAGS -I/sys"
282		LIBS="$LIBS -lcam"
283		DEFINES="$DEFINES -DCAM"
284		fi
285		fi
286		;;
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	–	;;
287		netbsd*)
288		CAN_NATIVE_M68K=yes
289		;;
#	Line 262 | Line 292 | solaris*)
292		DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
293		;;
294		irix*)
295	+	ETHERSRC=ether_unix.cpp
296		AUDIOSRC=Irix/audio_irix.cpp
297		EXTRASYSSRCS=Irix/unaligned.c
298		dnl IRIX headers work fine, but somehow don't define or use "STDC_HEADERS"
299		DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200 -DSTDC_HEADERS"
300		LIBS="$LIBS -laudio"
301	+	WANT_ESD=no
302	+
303	+	dnl Check if our compiler supports -Ofast (MIPSPro)
304	+	HAVE_OFAST=no
305	+	ocflags="$CFLAGS"
306	+	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / -Ofast /;s/^-g /-Ofast /;s/-g$/ -Ofast/;s/^-g$/-Ofast/'`
307	+	AC_MSG_CHECKING(if "-Ofast" works)
308	+	dnl Do a test compile of an empty function
309	+	AC_TRY_COMPILE(,, [AC_MSG_RESULT(yes); HAVE_OFAST=yes], AC_MSG_RESULT(no))
310	+	CFLAGS="$ocflags"
311	+
312		;;
313		esac
314
#	Line 291 | Line 333 | dnl to be put into the config.h file
333		dnl $1 -- the macro to define
334		dnl $2 -- the value to translate
335		AC_DEFUN(AC_TRANSLATE_DEFINE, [
336	<	if [[ "x$2" = "xyes" ]]; then
336	>	if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
337		AC_DEFINE($1)
338		fi
339		])
340
341	+	dnl Various checks if the system supports vm_allocate() and the like functions.
342	+	have_mach_vm=no
343	+	if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
344	+	"x$ac_cv_func_vm_protect" = "xyes" ]]; then
345	+	have_mach_vm=yes
346	+	fi
347	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
348	+
349	+	dnl Check that vm_allocate(), vm_protect() work
350	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
351	+
352	+	AC_CACHE_CHECK("whether vm_protect works",
353	+	ac_cv_vm_protect_works, [
354	+	AC_LANG_SAVE
355	+	AC_LANG_CPLUSPLUS
356	+	ac_cv_vm_protect_works=yes
357	+	dnl First the tests that should segfault
358	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
359	+	AC_TRY_RUN([
360	+	#define CONFIGURE_TEST_VM_MAP
361	+	#define TEST_VM_PROT_$test_def
362	+	#include "vm_alloc.cpp"
363	+	], ac_cv_vm_protect_works=no, rm -f core,
364	+	dnl When cross-compiling, do not assume anything
365	+	ac_cv_vm_protect_works="guessing no"
366	+	)
367	+	done
368	+	AC_TRY_RUN([
369	+	#define CONFIGURE_TEST_VM_MAP
370	+	#define TEST_VM_PROT_RDWR_WRITE
371	+	#include "vm_alloc.cpp"
372	+	], , ac_cv_vm_protect_works=no,
373	+	dnl When cross-compiling, do not assume anything
374	+	ac_cv_vm_protect_works="guessing no"
375	+	)
376	+	AC_LANG_RESTORE
377	+	]
378	+	)
379	+
380	+	dnl Remove support for vm_allocate() if vm_protect() does not work
381	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
382	+	case $ac_cv_vm_protect_works in
383	+	*yes) have_mach_vm=yes;;
384	+	*no) have_mach_vm=no;;
385	+	esac
386	+	fi
387	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
388	+
389	+	fi dnl HAVE_MACH_VM
390	+
391	+	dnl Various checks if the system supports mmap() and the like functions.
392	+	dnl ... and Mach memory allocators are not supported
393	+	have_mmap_vm=no
394	+	if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
395	+	"x$ac_cv_func_mprotect" = "xyes" ]]; then
396	+	if [[ "x$have_mach_vm" = "xno" ]]; then
397	+	have_mmap_vm=yes
398	+	fi
399	+	fi
400	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm")
401	+
402	+	dnl Check that mmap() and associated functions work.
403	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
404	+
405	+	dnl Check if we have a working anonymous mmap()
406	+	AC_CACHE_CHECK("whether mmap supports MAP_ANON",
407	+	ac_cv_mmap_anon, [
408	+	AC_LANG_SAVE
409	+	AC_LANG_CPLUSPLUS
410	+	AC_TRY_RUN([
411	+	#define HAVE_MMAP_ANON
412	+	#define CONFIGURE_TEST_VM_MAP
413	+	#define TEST_VM_MMAP_ANON
414	+	#include "vm_alloc.cpp"
415	+	], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
416	+	dnl When cross-compiling, do not assume anything.
417	+	ac_cv_mmap_anon="guessing no"
418	+	)
419	+	AC_LANG_RESTORE
420	+	]
421	+	)
422	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon")
423	+
424	+	AC_CACHE_CHECK("whether mmap supports MAP_ANONYMOUS",
425	+	ac_cv_mmap_anonymous, [
426	+	AC_LANG_SAVE
427	+	AC_LANG_CPLUSPLUS
428	+	AC_TRY_RUN([
429	+	#define HAVE_MMAP_ANONYMOUS
430	+	#define CONFIGURE_TEST_VM_MAP
431	+	#define TEST_VM_MMAP_ANON
432	+	#include "vm_alloc.cpp"
433	+	], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
434	+	dnl When cross-compiling, do not assume anything.
435	+	ac_cv_mmap_anonymous="guessing no"
436	+	)
437	+	AC_LANG_RESTORE
438	+	]
439	+	)
440	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous")
441	+
442	+	AC_CACHE_CHECK("whether mprotect works",
443	+	ac_cv_mprotect_works, [
444	+	AC_LANG_SAVE
445	+	AC_LANG_CPLUSPLUS
446	+	ac_cv_mprotect_works=yes
447	+	dnl First the tests that should segfault
448	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
449	+	AC_TRY_RUN([
450	+	#define CONFIGURE_TEST_VM_MAP
451	+	#define TEST_VM_PROT_$test_def
452	+	#include "vm_alloc.cpp"
453	+	], ac_cv_mprotect_works=no, rm -f core,
454	+	dnl When cross-compiling, do not assume anything
455	+	ac_cv_mprotect_works="guessing no"
456	+	)
457	+	done
458	+	AC_TRY_RUN([
459	+	#define CONFIGURE_TEST_VM_MAP
460	+	#define TEST_VM_PROT_RDWR_WRITE
461	+	#include "vm_alloc.cpp"
462	+	], , ac_cv_mprotect_works=no,
463	+	dnl When cross-compiling, do not assume anything
464	+	ac_cv_mprotect_works="guessing no"
465	+	)
466	+	AC_LANG_RESTORE
467	+	]
468	+	)
469	+
470	+	dnl Remove support for mmap() if mprotect() does not work
471	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
472	+	case $ac_cv_mprotect_works in
473	+	*yes) have_mmap_vm=yes;;
474	+	*no) have_mmap_vm=no;;
475	+	esac
476	+	fi
477	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm)
478	+
479	+	fi dnl HAVE_MMAP_VM
480	+
481		dnl Check if we can mmap 0x2000 bytes from 0x0000
482		AC_CACHE_CHECK("whether we can map Low Memory area 0x0000-0x2000",
483		ac_cv_can_map_lm, [
484		AC_LANG_SAVE
485		AC_LANG_CPLUSPLUS
486		AC_TRY_RUN([
487	<	#include <unistd.h>
488	<	#include <fcntl.h>
489	<	#include <sys/mman.h>
490	<
491	<	int main()
492	<	{ int zero_fd; char * lm;
493	<	if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
494	<	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);
487	>	#include "vm_alloc.cpp"
488	>	int main(void) { /* returns 0 if we could map the lowmem globals */
489	>	volatile char * lm;
490	>	if (vm_init() < 0) exit(1);
491	>	if ((lm = (volatile char *)vm_acquire_fixed(0, 0x2000)) == VM_MAP_FAILED) exit(1);
492	>	lm[0] = 'z';
493	>	if (vm_release((char *)lm, 0x2000) < 0) exit(1);
494	>	vm_exit(); exit(0);
495		}
496	<	],
497	<	[ac_cv_can_map_lm=yes],
498	<	[ac_cv_can_map_lm=no]
496	>	], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
497	>	dnl When cross-compiling, do not assume anything.
498	>	ac_cv_can_map_lm="guessing no"
499		)
500		AC_LANG_RESTORE
501		]
502		)
503
504	<	dnl Check if extended signals are supported.
505	<	AC_CACHE_CHECK("whether your system supports extended signal handlers",
506	<	ac_cv_have_extended_signals, [
504	>	dnl Check signal handlers need to be reinstalled
505	>	AC_CACHE_CHECK("whether signal handlers need to be reinstalled",
506	>	ac_cv_signal_need_reinstall, [
507		AC_LANG_SAVE
508		AC_LANG_CPLUSPLUS
509		AC_TRY_RUN([
332	–	#include <unistd.h>
510		#include <stdlib.h>
511	+	#ifdef HAVE_UNISTD_H
512	+	#include <unistd.h>
513	+	#endif
514		#include <signal.h>
515	<	#include <fcntl.h>
516	<	#include <sys/mman.h>
517	<
518	<	static volatile caddr_t mem = 0;
519	<	static int zero_fd = -1;
515	>	static int handled_signal = 0;
516	>	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
517	>	int main(void) { /* returns 0 if signals need not to be reinstalled */
518	>	signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
519	>	exit(handled_signal == 2);
520	>	}
521	>	], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
522	>	dnl When cross-compiling, do not assume anything.
523	>	ac_cv_signal_need_reinstall="guessing yes"
524	>	)
525	>	AC_LANG_RESTORE
526	>	]
527	>	)
528	>	AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall")
529
530	<	static RETSIGTYPE segfault_handler(int, siginfo_t * sip, void *)
531	<	{ if ((caddr_t)(sip->si_addr) != mem) exit(1);
532	<	munmap(mem, getpagesize()); close(zero_fd); exit(0); }
533	<
534	<	int main()
535	<	{ if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
536	<	if ((mem = (caddr_t)mmap(0, getpagesize(), PROT_READ, MAP_PRIVATE, zero_fd, 0)) == (caddr_t)MAP_FAILED) exit(1);
537	<	struct sigaction sa; sa.sa_sigaction = segfault_handler; sa.sa_flags = SA_SIGINFO;
538	<	sigaction(SIGSEGV, &sa, 0);
539	<	mem[0] = 0;
540	<	exit(1); // should not be reached
530	>	dnl Check if sigaction handlers need to be reinstalled
531	>	AC_CACHE_CHECK("whether sigaction handlers need to be reinstalled",
532	>	ac_cv_sigaction_need_reinstall, [
533	>	AC_LANG_SAVE
534	>	AC_LANG_CPLUSPLUS
535	>	AC_TRY_RUN([
536	>	#include <stdlib.h>
537	>	#ifdef HAVE_UNISTD_H
538	>	#include <unistd.h>
539	>	#endif
540	>	#include <signal.h>
541	>	static int handled_signal = 0;
542	>	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
543	>	typedef RETSIGTYPE (*signal_handler)(int);
544	>	static signal_handler mysignal(int sig, signal_handler handler) {
545	>	struct sigaction old_sa;
546	>	struct sigaction new_sa;
547	>	new_sa.sa_handler = handler;
548	>	return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
549		}
550	<	],
551	<	[ac_cv_have_extended_signals=yes],
552	<	[ac_cv_have_extended_signals=no]
550	>	int main(void) { /* returns 0 if signals need not to be reinstalled */
551	>	mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
552	>	exit(handled_signal == 2);
553	>	}
554	>	], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
555	>	dnl When cross-compiling, do not assume anything.
556	>	ac_cv_sigaction_need_reinstall="guessing yes"
557	>	)
558	>	AC_LANG_RESTORE
559	>	]
560	>	)
561	>	AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall")
562	>
563	>	dnl Check if extended signals are supported.
564	>	AC_CACHE_CHECK("whether your system supports extended signal handlers",
565	>	ac_cv_have_extended_signals, [
566	>	AC_LANG_SAVE
567	>	AC_LANG_CPLUSPLUS
568	>	AC_TRY_RUN([
569	>	#define HAVE_SIGINFO_T 1
570	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
571	>	#include "vm_alloc.cpp"
572	>	#include "sigsegv.cpp"
573	>	], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
574	>	dnl When cross-compiling, do not assume anything.
575	>	ac_cv_have_extended_signals=no
576		)
577		AC_LANG_RESTORE
578		]
#	Line 361 | Line 581 | AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac
581
582		dnl Otherwise, check for subterfuges.
583		if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
584	<	case "$target_os" in
585	<	linux*)
586	<	if [[ "x$HAVE_I386" = "xyes" ]]; then
587	<	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
588	<	ac_cv_have_sigcontext_hack, [
589	<	AC_LANG_SAVE
590	<	AC_LANG_CPLUSPLUS
591	<	AC_TRY_RUN([
592	<	#include <unistd.h>
593	<	#include <signal.h>
594	<	#include <fcntl.h>
595	<	#include <sys/mman.h>
596	<
597	<	static volatile caddr_t mem = 0;
598	<	static int zero_fd = -1;
599	<
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, $ac_cv_have_sigcontext_hack)
471	<	fi
472	<	;;
473	<	esac
584	>	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
585	>	ac_cv_have_sigcontext_hack, [
586	>	AC_LANG_SAVE
587	>	AC_LANG_CPLUSPLUS
588	>	AC_TRY_RUN([
589	>	#define HAVE_SIGCONTEXT_SUBTERFUGE 1
590	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
591	>	#include "vm_alloc.cpp"
592	>	#include "sigsegv.cpp"
593	>	], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
594	>	dnl When cross-compiling, do not assume anything.
595	>	ac_cv_have_sigcontext_hack=no
596	>	)
597	>	AC_LANG_RESTORE
598	>	])
599	>	AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack")
600		fi
601
602		dnl Can we do Video on SEGV Signals ?
#	Line 553 | Line 679 | AC_EGREP_CPP(yes,
679		#endif
680		], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
681
682	+	dnl Check for GCC 3.0 or higher.
683	+	HAVE_GCC30=no
684	+	AC_MSG_CHECKING(for GCC 3.0 or higher)
685	+	AC_EGREP_CPP(yes,
686	+	[#if __GNUC__ >= 3
687	+	yes
688	+	#endif
689	+	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
690	+
691		dnl Set "-fomit-frame-pointer" on i386 GCC 2.7 or higher.
692	+	dnl Also set "-fno-exceptions" for C++ because exception handling requires
693	+	dnl the frame pointer.
694		if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
695		CFLAGS="$CFLAGS -fomit-frame-pointer"
696	<	CXXFLAGS="$CXXFLAGS -fomit-frame-pointer"
696	>	CXXFLAGS="$CXXFLAGS -fomit-frame-pointer -fno-exceptions"
697	>	fi
698	>
699	>	dnl (gb) Do not merge constants since it breaks fpu/fpu_x86.cpp.
700	>	dnl As of 2001/08/02, this affects the following compilers:
701	>	dnl Official: probably gcc-3.1 (mainline CVS)
702	>	dnl Mandrake: gcc-2.96 >= 0.59mdk, gcc-3.0.1 >= 0.1mdk
703	>	dnl Red Hat : gcc-2.96 >= 89, gcc-3.0 >= 1
704	>	if [[ "x$HAVE_GCC27" = "xyes" ]]; then
705	>	SAVED_CXXFLAGS="$CXXFLAGS"
706	>	CXXFLAGS="$CXXFLAGS -fno-merge-constants"
707	>	AC_CACHE_CHECK([whether GCC supports constants merging], ac_cv_gcc_constants_merging, [
708	>	AC_LANG_SAVE
709	>	AC_LANG_CPLUSPLUS
710	>	AC_TRY_COMPILE([],[],[ac_cv_gcc_constants_merging=yes],[ac_cv_gcc_constants_merging=no])
711	>	AC_LANG_RESTORE
712	>	])
713	>	if [[ "x$ac_cv_gcc_constants_merging" != "xyes" ]]; then
714	>	CXXFLAGS="$SAVED_CXXFLAGS"
715	>	fi
716		fi
717
718		dnl Select appropriate CPU source and REGPARAM define.
719		ASM_OPTIMIZATIONS=none
720		CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
721	<	FPUSRCS="../uae_cpu/fpp.cpp"
722	<	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
721	>	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
722	>	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$OS_TYPE" != "xfreebsd" ]]; then
723		dnl i386 CPU
724		DEFINES="$DEFINES -DREGPARAM=\"__attribute__((regparm(3)))\""
725		if [[ "x$HAVE_GAS" = "xyes" ]]; then
726		ASM_OPTIMIZATIONS=i386
727		DEFINES="$DEFINES -DX86_ASSEMBLY -DUNALIGNED_PROFITABLE -DOPTIMIZED_FLAGS"
728	<	CPUSRCS="../uae_cpu/compiler.cpp cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
728	>	CPUSRCS="cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
729		FPUSRCS="../uae_cpu/fpu_x86.cpp"
730		fi
731		elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
#	Line 601 | Line 757 | elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]
757		CPUSRCS="asm_support.s"
758		fi
759
760	+	dnl Select appropriate FPU source.
761	+	dnl 1. Optimized X86 assembly core if target is i386 architecture
762	+	SAVED_DEFINES=$DEFINES
763	+	if [[ "x$FPE_CORE" = "xdefault" ]]; then
764	+	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
765	+	DEFINES="$DEFINES -DFPU_X86"
766	+	FPE_CORE_STR="i386 optimized core"
767	+	FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
768	+	FPE_CORE="i386"
769	+	else
770	+	FPE_CORE="uae"
771	+	fi
772	+	fi
773	+
774	+	dnl 2. JIT-FPU only supports IEEE-based implementation.
775	+	if [[ "x$WANT_JIT_FPU" = "xyes" -a "x$FPE_CORE" != "xieee" ]]; then
776	+	AC_MSG_WARN([Sorry, JIT-FPU supports only the "ieee" FPE implementation])
777	+	FPE_CORE="ieee"
778	+	dnl Restore previous variables. FPE_CORE_STR and FPUSRCS are overwritten
779	+	DEFINES=$SAVED_DEFINES
780	+	fi
781	+
782	+	dnl 3. Choose either IEEE-based implementation or the old UAE core
783	+	if [[ "x$FPE_CORE" = "xieee" ]]; then
784	+	AC_CHECK_HEADERS(fenv.h)
785	+	AC_CHECK_FUNCS(feclearexcept fegetexceptflag feraiseexcept fesetexceptflag fetestexcept)
786	+	AC_CHECK_FUNCS(fegetround fesetround)
787	+	DEFINES="$DEFINES -DFPU_IEEE"
788	+	FPE_CORE_STR="ieee-based fpu core"
789	+	FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
790	+	elif [[ "x$FPE_CORE" = "xuae" ]]; then
791	+	DEFINES="$DEFINES -DFPU_UAE"
792	+	FPE_CORE_STR="original uae core"
793	+	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
794	+	fi
795	+
796	+	dnl Check for certain math functions
797	+	AC_CHECK_FUNCS(atanh)
798	+	AC_CHECK_FUNCS(isnan isinf)             dnl C99
799	+	AC_CHECK_FUNCS(isnanl isinfl)   dnl IEEE ?
800	+
801		dnl UAE CPU sources for all non-m68k-native architectures.
802		if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
803		CPUINCLUDES="-I../uae_cpu"
#	Line 609 | Line 806 | fi
806
807		dnl Remove the "-g" option if set for GCC.
808		if [[ "x$HAVE_GCC27" = "xyes" ]]; then
809	<	dnl gb-- Probably not the cleanest way to take
810	<	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
811	<	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
809	>	CFLAGS=`echo $CFLAGS | sed -e 's/-g//g'`
810	>	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g//g'`
811	>	fi
812	>
813	>	dnl Or if we have -Ofast
814	>	if [[ "x$HAVE_OFAST" = "xyes" ]]; then
815	>	CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -Ofast"
816	>	CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -Ofast"
817	>	CXXFLAGS="-LANG:std $CXXFLAGS"
818	>	LDFLAGS="$LDFLAGS -Ofast"
819		fi
820
821		dnl Generate Makefile.
#	Line 633 | Line 837 | echo ESD sound support ................
837		echo GTK user interface ............... : $WANT_GTK
838		echo mon debugger support ............. : $WANT_MON
839		echo Running m68k code natively ....... : $WANT_NATIVE_M68K
840	+	echo Floating-Point emulation core .... : $FPE_CORE_STR
841		echo Assembly optimizations ........... : $ASM_OPTIMIZATIONS
842		echo Addressing mode .................. : $ADDRESSING_MODE
843		echo

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