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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 1.57 by gbeauche, 2002-03-18T12:59:44Z

#	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=$enableval], [WANT_FBDEV_DGA=yes])
12	<	AC_ARG_ENABLE(vosf,          [  --enable-vosf           enable video on SEGV signals [default=no]], [WANT_VOSF=$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_$CPU_TYPE"
73
#	Line 74 | Line 87 | if [[ "x$WANT_MON" = "xyes" ]]; then
87		if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
88		AC_MSG_RESULT(yes)
89		AC_DEFINE(ENABLE_MON)
90	<	MONSRCS="$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 $mon_srcdir/disass/m68k-opc.c"
90	>	MONSRCS="$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 $mon_srcdir/disass/m68k-opc.c"
91		CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
79	–	AC_CHECK_LIB(readline, readline)
92		AC_CHECK_LIB(termcap, tputs)
93	+	AC_CHECK_LIB(readline, readline)
94		AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
95		else
96		AC_MSG_RESULT(no)
#	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 111 | Line 125 | if [[ "x$HAVE_PTHREADS" = "xyes" ]]; the
125		AC_DEFINE(HAVE_PTHREADS)
126		fi
127		AC_CHECK_FUNCS(pthread_cancel)
128	+	AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
129	+	AC_CHECK_FUNCS(pthread_mutexattr_settype)
130
131		dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
132		SEMSRC=
#	Line 154 | Line 170 | UISRCS=../dummy/prefs_editor_dummy.cpp
170		if [[ "x$WANT_GTK" = "xyes" ]]; then
171		AM_PATH_GTK(1.2.0, [
172		AC_DEFINE(ENABLE_GTK)
157	–	CFLAGS="$CFLAGS $GTK_CFLAGS"
173		CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
174		LIBS="$LIBS $GTK_LIBS"
175		UISRCS=prefs_editor_gtk.cpp
176	+	B2_PATH_GNOMEUI([
177	+	AC_DEFINE(HAVE_GNOMEUI)
178	+	CXXFLAGS="$CXXFLAGS $GNOMEUI_CFLAGS"
179	+	LIBS="$LIBS $GNOMEUI_LIBS"
180	+	], [])
181		], [
182		AC_MSG_WARN([Could not find GTK+, disabling user interface.])
183		WANT_GTK=no
#	Line 177 | Line 197 | if [[ "x$WANT_ESD" = "xyes" ]]; then
197		])
198		fi
199
200	+	dnl We use 64-bit file size support if possible.
201	+	dnl FIXME: Use AC_SYS_LARGEFILE from autoconf 2.5+
202	+	if [[ "x$OS_TYPE" = "xlinux" ]]; then
203	+	AC_DEFINE(_USE_LARGEFILE_SOURCE, 1, [Get more functions for correct standard I/O])
204	+	AC_DEFINE(_FILE_OFFSET_BITS, 64, [Get 64-bit file size support])
205	+	fi
206	+
207		dnl Checks for header files.
208		AC_HEADER_STDC
209	<	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h)
209	>	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h)
210
211		dnl Checks for typedefs, structures, and compiler characteristics.
212		AC_C_BIGENDIAN
#	Line 192 | Line 219 | AC_CHECK_SIZEOF(long long, 8)
219		AC_CHECK_SIZEOF(void *, 4)
220		AC_TYPE_OFF_T
221		AC_CHECK_TYPE(loff_t, off_t)
222	+	AC_CHECK_TYPE(caddr_t, [char *])
223		AC_TYPE_SIZE_T
224		AC_TYPE_SIGNAL
225		AC_HEADER_TIME
226		AC_STRUCT_TM
227
228	+	dnl Check whether sys/socket.h defines type socklen_t.
229	+	dnl (extracted from ac-archive/Miscellaneous)
230	+	AC_CACHE_CHECK("for socklen_t",
231	+	ac_cv_type_socklen_t, [
232	+	AC_TRY_COMPILE([
233	+	#include <sys/types.h>
234	+	#include <sys/socket.h>
235	+	], [socklen_t len = 42; return 0;],
236	+	ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
237	+	dnl When cross-compiling, do not assume anything.
238	+	ac_cv_type_socklen_t="guessing no"
239	+	)
240	+	])
241	+	if [[ "x$ac_cv_type_socklen_t" != "xyes" ]]; then
242	+	AC_DEFINE(socklen_t, int)
243	+	fi
244	+
245		dnl Checks for library functions.
246		AC_CHECK_FUNCS(strdup cfmakeraw)
247		AC_CHECK_FUNCS(clock_gettime timer_create)
248	+	AC_CHECK_FUNCS(sigaction signal)
249	+	AC_CHECK_FUNCS(mmap mprotect munmap)
250	+	AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
251	+
252	+	dnl Darwin seems to define mach_task_self() instead of task_self().
253	+	AC_CHECK_FUNCS(mach_task_self task_self)
254
255		dnl Select system-dependant source files.
256		SERIALSRC=serial_unix.cpp
#	Line 210 | Line 261 | EXTRASYSSRCS=
261		CAN_NATIVE_M68K=no
262		case "$target_os" in
263		linux*)
264	<	ETHERSRC=Linux/ether_linux.cpp
214	<	SCSISRC=Linux/scsi_linux.cpp
264	>	ETHERSRC=ether_unix.cpp
265		AUDIOSRC=audio_oss_esd.cpp
266	+	SCSISRC=Linux/scsi_linux.cpp
267		;;
268	<	freebsd*3.*)
268	>	freebsd*)
269	>	ETHERSRC=ether_unix.cpp
270		AUDIOSRC=audio_oss_esd.cpp
271		DEFINES="$DEFINES -DBSD_COMP"
272	+	CXXFLAGS="$CXXFLAGS -fpermissive"
273		dnl Check for the CAM library
274		AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
275		if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
276		AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
277		else
278		dnl Check for the sys kernel includes
279	<	AC_CHECK_HEADER(/sys/cam/cam.h)
280	<	if [[ "x$ac_cv_header__sys_cam_cam_h" = "xno" ]]; then
279	>	AC_CHECK_HEADER(camlib.h)
280	>	if [[ "x$ac_cv_header_camlib_h" = "xno" ]]; then
281		dnl In this case I should fix this thing including a "patch"
282		dnl to access directly to the functions in the kernel :) --Orlando
283	<	AC_MSG_WARN([Cannot find kernel includes for CAM library, disabling SCSI support.])
283	>	AC_MSG_WARN([Cannot find includes for CAM library, disabling SCSI support.])
284		else
285		SCSISRC=FreeBSD/scsi_freebsd.cpp
233	–	CXXFLAGS="$CXXFLAGS -I/sys"
234	–	CFLAGS="$CFLAGS -I/sys"
286		LIBS="$LIBS -lcam"
287		DEFINES="$DEFINES -DCAM"
288		fi
289		fi
290		;;
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	–	;;
291		netbsd*)
292		CAN_NATIVE_M68K=yes
293		;;
#	Line 262 | Line 296 | solaris*)
296		DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
297		;;
298		irix*)
299	+	ETHERSRC=ether_unix.cpp
300		AUDIOSRC=Irix/audio_irix.cpp
301		EXTRASYSSRCS=Irix/unaligned.c
302		dnl IRIX headers work fine, but somehow don't define or use "STDC_HEADERS"
303		DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200 -DSTDC_HEADERS"
304		LIBS="$LIBS -laudio"
305	+	WANT_ESD=no
306	+
307	+	dnl Check if our compiler supports -Ofast (MIPSPro)
308	+	HAVE_OFAST=no
309	+	ocflags="$CFLAGS"
310	+	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / -Ofast /;s/^-g /-Ofast /;s/-g$/ -Ofast/;s/^-g$/-Ofast/'`
311	+	AC_MSG_CHECKING(if "-Ofast" works)
312	+	dnl Do a test compile of an empty function
313	+	AC_TRY_COMPILE(,, [AC_MSG_RESULT(yes); HAVE_OFAST=yes], AC_MSG_RESULT(no))
314	+	CFLAGS="$ocflags"
315	+
316		;;
317		esac
318
#	Line 291 | Line 337 | dnl to be put into the config.h file
337		dnl $1 -- the macro to define
338		dnl $2 -- the value to translate
339		AC_DEFUN(AC_TRANSLATE_DEFINE, [
340	<	if [[ "x$2" = "xyes" ]]; then
340	>	if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
341		AC_DEFINE($1)
342		fi
343		])
344
345	+	dnl Various checks if the system supports vm_allocate() and the like functions.
346	+	have_mach_vm=no
347	+	if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
348	+	"x$ac_cv_func_vm_protect" = "xyes" ]]; then
349	+	have_mach_vm=yes
350	+	fi
351	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
352	+
353	+	dnl Check that vm_allocate(), vm_protect() work
354	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
355	+
356	+	AC_CACHE_CHECK("whether vm_protect works",
357	+	ac_cv_vm_protect_works, [
358	+	AC_LANG_SAVE
359	+	AC_LANG_CPLUSPLUS
360	+	ac_cv_vm_protect_works=yes
361	+	dnl First the tests that should segfault
362	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
363	+	AC_TRY_RUN([
364	+	#define CONFIGURE_TEST_VM_MAP
365	+	#define TEST_VM_PROT_$test_def
366	+	#include "vm_alloc.cpp"
367	+	], ac_cv_vm_protect_works=no, rm -f core,
368	+	dnl When cross-compiling, do not assume anything
369	+	ac_cv_vm_protect_works="guessing no"
370	+	)
371	+	done
372	+	AC_TRY_RUN([
373	+	#define CONFIGURE_TEST_VM_MAP
374	+	#define TEST_VM_PROT_RDWR_WRITE
375	+	#include "vm_alloc.cpp"
376	+	], , ac_cv_vm_protect_works=no,
377	+	dnl When cross-compiling, do not assume anything
378	+	ac_cv_vm_protect_works="guessing no"
379	+	)
380	+	AC_LANG_RESTORE
381	+	]
382	+	)
383	+
384	+	dnl Remove support for vm_allocate() if vm_protect() does not work
385	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
386	+	case $ac_cv_vm_protect_works in
387	+	*yes) have_mach_vm=yes;;
388	+	*no) have_mach_vm=no;;
389	+	esac
390	+	fi
391	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
392	+
393	+	fi dnl HAVE_MACH_VM
394	+
395	+	dnl Various checks if the system supports mmap() and the like functions.
396	+	dnl ... and Mach memory allocators are not supported
397	+	have_mmap_vm=no
398	+	if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
399	+	"x$ac_cv_func_mprotect" = "xyes" ]]; then
400	+	if [[ "x$have_mach_vm" = "xno" ]]; then
401	+	have_mmap_vm=yes
402	+	fi
403	+	fi
404	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm")
405	+
406	+	dnl Check that mmap() and associated functions work.
407	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
408	+
409	+	dnl Check if we have a working anonymous mmap()
410	+	AC_CACHE_CHECK("whether mmap supports MAP_ANON",
411	+	ac_cv_mmap_anon, [
412	+	AC_LANG_SAVE
413	+	AC_LANG_CPLUSPLUS
414	+	AC_TRY_RUN([
415	+	#define HAVE_MMAP_ANON
416	+	#define CONFIGURE_TEST_VM_MAP
417	+	#define TEST_VM_MMAP_ANON
418	+	#include "vm_alloc.cpp"
419	+	], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
420	+	dnl When cross-compiling, do not assume anything.
421	+	ac_cv_mmap_anon="guessing no"
422	+	)
423	+	AC_LANG_RESTORE
424	+	]
425	+	)
426	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon")
427	+
428	+	AC_CACHE_CHECK("whether mmap supports MAP_ANONYMOUS",
429	+	ac_cv_mmap_anonymous, [
430	+	AC_LANG_SAVE
431	+	AC_LANG_CPLUSPLUS
432	+	AC_TRY_RUN([
433	+	#define HAVE_MMAP_ANONYMOUS
434	+	#define CONFIGURE_TEST_VM_MAP
435	+	#define TEST_VM_MMAP_ANON
436	+	#include "vm_alloc.cpp"
437	+	], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
438	+	dnl When cross-compiling, do not assume anything.
439	+	ac_cv_mmap_anonymous="guessing no"
440	+	)
441	+	AC_LANG_RESTORE
442	+	]
443	+	)
444	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous")
445	+
446	+	AC_CACHE_CHECK("whether mprotect works",
447	+	ac_cv_mprotect_works, [
448	+	AC_LANG_SAVE
449	+	AC_LANG_CPLUSPLUS
450	+	ac_cv_mprotect_works=yes
451	+	dnl First the tests that should segfault
452	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
453	+	AC_TRY_RUN([
454	+	#define CONFIGURE_TEST_VM_MAP
455	+	#define TEST_VM_PROT_$test_def
456	+	#include "vm_alloc.cpp"
457	+	], ac_cv_mprotect_works=no, rm -f core,
458	+	dnl When cross-compiling, do not assume anything
459	+	ac_cv_mprotect_works="guessing no"
460	+	)
461	+	done
462	+	AC_TRY_RUN([
463	+	#define CONFIGURE_TEST_VM_MAP
464	+	#define TEST_VM_PROT_RDWR_WRITE
465	+	#include "vm_alloc.cpp"
466	+	], , ac_cv_mprotect_works=no,
467	+	dnl When cross-compiling, do not assume anything
468	+	ac_cv_mprotect_works="guessing no"
469	+	)
470	+	AC_LANG_RESTORE
471	+	]
472	+	)
473	+
474	+	dnl Remove support for mmap() if mprotect() does not work
475	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
476	+	case $ac_cv_mprotect_works in
477	+	*yes) have_mmap_vm=yes;;
478	+	*no) have_mmap_vm=no;;
479	+	esac
480	+	fi
481	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm)
482	+
483	+	fi dnl HAVE_MMAP_VM
484	+
485		dnl Check if we can mmap 0x2000 bytes from 0x0000
486		AC_CACHE_CHECK("whether we can map Low Memory area 0x0000-0x2000",
487		ac_cv_can_map_lm, [
488		AC_LANG_SAVE
489		AC_LANG_CPLUSPLUS
490		AC_TRY_RUN([
491	<	#include <unistd.h>
492	<	#include <fcntl.h>
493	<	#include <sys/mman.h>
494	<
495	<	int main()
496	<	{ int zero_fd; char * lm;
497	<	if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
498	<	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);
491	>	#include "vm_alloc.cpp"
492	>	int main(void) { /* returns 0 if we could map the lowmem globals */
493	>	volatile char * lm;
494	>	if (vm_init() < 0) exit(1);
495	>	if ((lm = (volatile char *)vm_acquire_fixed(0, 0x2000)) == VM_MAP_FAILED) exit(1);
496	>	lm[0] = 'z';
497	>	if (vm_release((char *)lm, 0x2000) < 0) exit(1);
498	>	vm_exit(); exit(0);
499		}
500	<	],
501	<	[ac_cv_can_map_lm=yes],
502	<	[ac_cv_can_map_lm=no]
500	>	], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
501	>	dnl When cross-compiling, do not assume anything.
502	>	ac_cv_can_map_lm="guessing no"
503		)
504		AC_LANG_RESTORE
505		]
506		)
507
508	<	dnl Check if extended signals are supported.
509	<	AC_CACHE_CHECK("whether your system supports extended signal handlers",
510	<	ac_cv_have_extended_signals, [
508	>	dnl Check signal handlers need to be reinstalled
509	>	AC_CACHE_CHECK("whether signal handlers need to be reinstalled",
510	>	ac_cv_signal_need_reinstall, [
511		AC_LANG_SAVE
512		AC_LANG_CPLUSPLUS
513		AC_TRY_RUN([
332	–	#include <unistd.h>
514		#include <stdlib.h>
515	+	#ifdef HAVE_UNISTD_H
516	+	#include <unistd.h>
517	+	#endif
518		#include <signal.h>
519	<	#include <fcntl.h>
520	<	#include <sys/mman.h>
521	<
522	<	static volatile caddr_t mem = 0;
523	<	static int zero_fd = -1;
519	>	static int handled_signal = 0;
520	>	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
521	>	int main(void) { /* returns 0 if signals need not to be reinstalled */
522	>	signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
523	>	exit(handled_signal == 2);
524	>	}
525	>	], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
526	>	dnl When cross-compiling, do not assume anything.
527	>	ac_cv_signal_need_reinstall="guessing yes"
528	>	)
529	>	AC_LANG_RESTORE
530	>	]
531	>	)
532	>	AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall")
533
534	<	static RETSIGTYPE segfault_handler(int, siginfo_t * sip, void *)
535	<	{ if ((caddr_t)(sip->si_addr) != mem) exit(1);
536	<	munmap(mem, getpagesize()); close(zero_fd); exit(0); }
537	<
538	<	int main()
539	<	{ if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
540	<	if ((mem = (caddr_t)mmap(0, getpagesize(), PROT_READ, MAP_PRIVATE, zero_fd, 0)) == (caddr_t)MAP_FAILED) exit(1);
541	<	struct sigaction sa; sa.sa_sigaction = segfault_handler; sa.sa_flags = SA_SIGINFO;
542	<	sigaction(SIGSEGV, &sa, 0);
543	<	mem[0] = 0;
544	<	exit(1); // should not be reached
534	>	dnl Check if sigaction handlers need to be reinstalled
535	>	AC_CACHE_CHECK("whether sigaction handlers need to be reinstalled",
536	>	ac_cv_sigaction_need_reinstall, [
537	>	AC_LANG_SAVE
538	>	AC_LANG_CPLUSPLUS
539	>	AC_TRY_RUN([
540	>	#include <stdlib.h>
541	>	#ifdef HAVE_UNISTD_H
542	>	#include <unistd.h>
543	>	#endif
544	>	#include <signal.h>
545	>	static int handled_signal = 0;
546	>	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
547	>	typedef RETSIGTYPE (*signal_handler)(int);
548	>	static signal_handler mysignal(int sig, signal_handler handler) {
549	>	struct sigaction old_sa;
550	>	struct sigaction new_sa;
551	>	new_sa.sa_handler = handler;
552	>	return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
553		}
554	<	],
555	<	[ac_cv_have_extended_signals=yes],
556	<	[ac_cv_have_extended_signals=no]
554	>	int main(void) { /* returns 0 if signals need not to be reinstalled */
555	>	mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
556	>	exit(handled_signal == 2);
557	>	}
558	>	], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
559	>	dnl When cross-compiling, do not assume anything.
560	>	ac_cv_sigaction_need_reinstall="guessing yes"
561	>	)
562	>	AC_LANG_RESTORE
563	>	]
564	>	)
565	>	AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall")
566	>
567	>	dnl Check if extended signals are supported.
568	>	AC_CACHE_CHECK("whether your system supports extended signal handlers",
569	>	ac_cv_have_extended_signals, [
570	>	AC_LANG_SAVE
571	>	AC_LANG_CPLUSPLUS
572	>	AC_TRY_RUN([
573	>	#define HAVE_SIGINFO_T 1
574	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
575	>	#include "vm_alloc.cpp"
576	>	#include "sigsegv.cpp"
577	>	], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
578	>	dnl When cross-compiling, do not assume anything.
579	>	ac_cv_have_extended_signals=no
580		)
581		AC_LANG_RESTORE
582		]
#	Line 361 | Line 585 | AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac
585
586		dnl Otherwise, check for subterfuges.
587		if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
588	<	case "$target_os" in
589	<	linux*)
590	<	if [[ "x$HAVE_I386" = "xyes" ]]; then
591	<	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
592	<	ac_cv_have_sigcontext_hack, [
593	<	AC_LANG_SAVE
594	<	AC_LANG_CPLUSPLUS
595	<	AC_TRY_RUN([
596	<	#include <unistd.h>
597	<	#include <signal.h>
598	<	#include <fcntl.h>
599	<	#include <sys/mman.h>
600	<
601	<	static volatile caddr_t mem = 0;
602	<	static int zero_fd = -1;
603	<
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, $ac_cv_have_sigcontext_hack)
471	<	fi
472	<	;;
473	<	esac
588	>	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
589	>	ac_cv_have_sigcontext_hack, [
590	>	AC_LANG_SAVE
591	>	AC_LANG_CPLUSPLUS
592	>	AC_TRY_RUN([
593	>	#define HAVE_SIGCONTEXT_SUBTERFUGE 1
594	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
595	>	#include "vm_alloc.cpp"
596	>	#include "sigsegv.cpp"
597	>	], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
598	>	dnl When cross-compiling, do not assume anything.
599	>	ac_cv_have_sigcontext_hack=no
600	>	)
601	>	AC_LANG_RESTORE
602	>	])
603	>	AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack")
604		fi
605
606		dnl Can we do Video on SEGV Signals ?
#	Line 553 | Line 683 | AC_EGREP_CPP(yes,
683		#endif
684		], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
685
686	+	dnl Check for GCC 3.0 or higher.
687	+	HAVE_GCC30=no
688	+	AC_MSG_CHECKING(for GCC 3.0 or higher)
689	+	AC_EGREP_CPP(yes,
690	+	[#if __GNUC__ >= 3
691	+	yes
692	+	#endif
693	+	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
694	+
695		dnl Set "-fomit-frame-pointer" on i386 GCC 2.7 or higher.
696	+	dnl Also set "-fno-exceptions" for C++ because exception handling requires
697	+	dnl the frame pointer.
698		if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
699		CFLAGS="$CFLAGS -fomit-frame-pointer"
700	<	CXXFLAGS="$CXXFLAGS -fomit-frame-pointer"
700	>	CXXFLAGS="$CXXFLAGS -fomit-frame-pointer -fno-exceptions"
701	>	fi
702	>
703	>	dnl (gb) Do not merge constants since it breaks fpu/fpu_x86.cpp.
704	>	dnl As of 2001/08/02, this affects the following compilers:
705	>	dnl Official: probably gcc-3.1 (mainline CVS)
706	>	dnl Mandrake: gcc-2.96 >= 0.59mdk, gcc-3.0.1 >= 0.1mdk
707	>	dnl Red Hat : gcc-2.96 >= 89, gcc-3.0 >= 1
708	>	if [[ "x$HAVE_GCC27" = "xyes" ]]; then
709	>	SAVED_CXXFLAGS="$CXXFLAGS"
710	>	CXXFLAGS="$CXXFLAGS -fno-merge-constants"
711	>	AC_CACHE_CHECK([whether GCC supports constants merging], ac_cv_gcc_constants_merging, [
712	>	AC_LANG_SAVE
713	>	AC_LANG_CPLUSPLUS
714	>	AC_TRY_COMPILE([],[],[ac_cv_gcc_constants_merging=yes],[ac_cv_gcc_constants_merging=no])
715	>	AC_LANG_RESTORE
716	>	])
717	>	if [[ "x$ac_cv_gcc_constants_merging" != "xyes" ]]; then
718	>	CXXFLAGS="$SAVED_CXXFLAGS"
719	>	fi
720		fi
721
722		dnl Select appropriate CPU source and REGPARAM define.
723		ASM_OPTIMIZATIONS=none
724		CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
725	<	FPUSRCS="../uae_cpu/fpp.cpp"
726	<	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
725	>	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
726	>	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$OS_TYPE" != "xfreebsd" ]]; then
727		dnl i386 CPU
728		DEFINES="$DEFINES -DREGPARAM=\"__attribute__((regparm(3)))\""
729		if [[ "x$HAVE_GAS" = "xyes" ]]; then
730		ASM_OPTIMIZATIONS=i386
731		DEFINES="$DEFINES -DX86_ASSEMBLY -DUNALIGNED_PROFITABLE -DOPTIMIZED_FLAGS"
732	<	CPUSRCS="../uae_cpu/compiler.cpp cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
732	>	CPUSRCS="cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
733		FPUSRCS="../uae_cpu/fpu_x86.cpp"
734		fi
735		elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
#	Line 601 | Line 761 | elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]
761		CPUSRCS="asm_support.s"
762		fi
763
764	+	dnl Select appropriate FPU source.
765	+	dnl 1. Optimized X86 assembly core if target is i386 architecture
766	+	SAVED_DEFINES=$DEFINES
767	+	if [[ "x$FPE_CORE" = "xdefault" ]]; then
768	+	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
769	+	DEFINES="$DEFINES -DFPU_X86"
770	+	FPE_CORE_STR="i386 optimized core"
771	+	FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
772	+	FPE_CORE="i386"
773	+	else
774	+	FPE_CORE="uae"
775	+	fi
776	+	fi
777	+
778	+	dnl 2. JIT-FPU only supports IEEE-based implementation.
779	+	if [[ "x$WANT_JIT_FPU" = "xyes" -a "x$FPE_CORE" != "xieee" ]]; then
780	+	AC_MSG_WARN([Sorry, JIT-FPU supports only the "ieee" FPE implementation])
781	+	FPE_CORE="ieee"
782	+	dnl Restore previous variables. FPE_CORE_STR and FPUSRCS are overwritten
783	+	DEFINES=$SAVED_DEFINES
784	+	fi
785	+
786	+	dnl 3. Choose either IEEE-based implementation or the old UAE core
787	+	if [[ "x$FPE_CORE" = "xieee" ]]; then
788	+	AC_CHECK_HEADERS(fenv.h)
789	+	AC_CHECK_FUNCS(feclearexcept fegetexceptflag feraiseexcept fesetexceptflag fetestexcept)
790	+	AC_CHECK_FUNCS(fegetround fesetround)
791	+	DEFINES="$DEFINES -DFPU_IEEE"
792	+	FPE_CORE_STR="ieee-based fpu core"
793	+	FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
794	+	elif [[ "x$FPE_CORE" = "xuae" ]]; then
795	+	DEFINES="$DEFINES -DFPU_UAE"
796	+	FPE_CORE_STR="original uae core"
797	+	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
798	+	fi
799	+
800	+	dnl Check for certain math functions
801	+	AC_CHECK_FUNCS(atanh)
802	+	AC_CHECK_FUNCS(isnan isinf)             dnl C99
803	+	AC_CHECK_FUNCS(isnanl isinfl)   dnl IEEE ?
804	+
805		dnl UAE CPU sources for all non-m68k-native architectures.
806		if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
807		CPUINCLUDES="-I../uae_cpu"
#	Line 609 | Line 810 | fi
810
811		dnl Remove the "-g" option if set for GCC.
812		if [[ "x$HAVE_GCC27" = "xyes" ]]; then
813	<	dnl gb-- Probably not the cleanest way to take
814	<	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
815	<	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
813	>	CFLAGS=`echo $CFLAGS | sed -e 's/-g//g'`
814	>	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g//g'`
815	>	fi
816	>
817	>	dnl Or if we have -Ofast
818	>	if [[ "x$HAVE_OFAST" = "xyes" ]]; then
819	>	CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -Ofast"
820	>	CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -Ofast"
821	>	CXXFLAGS="-LANG:std $CXXFLAGS"
822	>	LDFLAGS="$LDFLAGS -Ofast"
823		fi
824
825		dnl Generate Makefile.
#	Line 633 | Line 841 | echo ESD sound support ................
841		echo GTK user interface ............... : $WANT_GTK
842		echo mon debugger support ............. : $WANT_MON
843		echo Running m68k code natively ....... : $WANT_NATIVE_M68K
844	+	echo Floating-Point emulation core .... : $FPE_CORE_STR
845		echo Assembly optimizations ........... : $ASM_OPTIMIZATIONS
846		echo Addressing mode .................. : $ADDRESSING_MODE
847		echo

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