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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 1.52 by cebix, 2002-01-22T17:15:09Z

#	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 154 | Line 172 | UISRCS=../dummy/prefs_editor_dummy.cpp
172		if [[ "x$WANT_GTK" = "xyes" ]]; then
173		AM_PATH_GTK(1.2.0, [
174		AC_DEFINE(ENABLE_GTK)
157	–	CFLAGS="$CFLAGS $GTK_CFLAGS"
175		CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
176		LIBS="$LIBS $GTK_LIBS"
177		UISRCS=prefs_editor_gtk.cpp
178	+	B2_PATH_GNOMEUI([
179	+	AC_DEFINE(HAVE_GNOMEUI)
180	+	CXXFLAGS="$CXXFLAGS $GNOMEUI_CFLAGS"
181	+	LIBS="$LIBS $GNOMEUI_LIBS"
182	+	], [])
183		], [
184		AC_MSG_WARN([Could not find GTK+, disabling user interface.])
185		WANT_GTK=no
#	Line 179 | Line 201 | fi
201
202		dnl Checks for header files.
203		AC_HEADER_STDC
204	<	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h)
204	>	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h)
205
206		dnl Checks for typedefs, structures, and compiler characteristics.
207		AC_C_BIGENDIAN
#	Line 192 | Line 214 | AC_CHECK_SIZEOF(long long, 8)
214		AC_CHECK_SIZEOF(void *, 4)
215		AC_TYPE_OFF_T
216		AC_CHECK_TYPE(loff_t, off_t)
217	+	TYPE_SOCKLEN_T
218		AC_TYPE_SIZE_T
219		AC_TYPE_SIGNAL
220		AC_HEADER_TIME
#	Line 200 | Line 223 | AC_STRUCT_TM
223		dnl Checks for library functions.
224		AC_CHECK_FUNCS(strdup cfmakeraw)
225		AC_CHECK_FUNCS(clock_gettime timer_create)
226	+	AC_CHECK_FUNCS(sigaction signal)
227	+	AC_CHECK_FUNCS(mmap mprotect munmap)
228	+	AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
229	+
230	+	dnl Darwin seems to define mach_task_self() instead of task_self().
231	+	AC_CHECK_FUNCS(mach_task_self task_self)
232
233		dnl Select system-dependant source files.
234		SERIALSRC=serial_unix.cpp
#	Line 210 | Line 239 | EXTRASYSSRCS=
239		CAN_NATIVE_M68K=no
240		case "$target_os" in
241		linux*)
242	<	ETHERSRC=Linux/ether_linux.cpp
214	<	SCSISRC=Linux/scsi_linux.cpp
242	>	ETHERSRC=ether_unix.cpp
243		AUDIOSRC=audio_oss_esd.cpp
244	+	SCSISRC=Linux/scsi_linux.cpp
245		;;
246	<	freebsd*3.*)
246	>	freebsd*)
247	>	ETHERSRC=ether_unix.cpp
248		AUDIOSRC=audio_oss_esd.cpp
249		DEFINES="$DEFINES -DBSD_COMP"
250	+	CXXFLAGS="$CXXFLAGS -fpermissive"
251		dnl Check for the CAM library
252		AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
253		if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
254		AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
255		else
256		dnl Check for the sys kernel includes
257	<	AC_CHECK_HEADER(/sys/cam/cam.h)
258	<	if [[ "x$ac_cv_header__sys_cam_cam_h" = "xno" ]]; then
257	>	AC_CHECK_HEADER(camlib.h)
258	>	if [[ "x$ac_cv_header_camlib_h" = "xno" ]]; then
259		dnl In this case I should fix this thing including a "patch"
260		dnl to access directly to the functions in the kernel :) --Orlando
261	<	AC_MSG_WARN([Cannot find kernel includes for CAM library, disabling SCSI support.])
261	>	AC_MSG_WARN([Cannot find includes for CAM library, disabling SCSI support.])
262		else
263		SCSISRC=FreeBSD/scsi_freebsd.cpp
233	–	CXXFLAGS="$CXXFLAGS -I/sys"
234	–	CFLAGS="$CFLAGS -I/sys"
264		LIBS="$LIBS -lcam"
265		DEFINES="$DEFINES -DCAM"
266		fi
267		fi
268		;;
240	–	freebsd*)
241	–	DEFINES="$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="$LIBS -lscsi"
254	–	fi
255	–	fi
256	–	;;
269		netbsd*)
270		CAN_NATIVE_M68K=yes
271		;;
#	Line 262 | Line 274 | solaris*)
274		DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
275		;;
276		irix*)
277	+	ETHERSRC=ether_unix.cpp
278		AUDIOSRC=Irix/audio_irix.cpp
279		EXTRASYSSRCS=Irix/unaligned.c
280		dnl IRIX headers work fine, but somehow don't define or use "STDC_HEADERS"
281		DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200 -DSTDC_HEADERS"
282		LIBS="$LIBS -laudio"
283	+	WANT_ESD=no
284	+
285	+	dnl Check if our compiler supports -Ofast (MIPSPro)
286	+	HAVE_OFAST=no
287	+	ocflags="$CFLAGS"
288	+	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / -Ofast /;s/^-g /-Ofast /;s/-g$/ -Ofast/;s/^-g$/-Ofast/'`
289	+	AC_MSG_CHECKING(if "-Ofast" works)
290	+	dnl Do a test compile of an empty function
291	+	AC_TRY_COMPILE(,, [AC_MSG_RESULT(yes); HAVE_OFAST=yes], AC_MSG_RESULT(no))
292	+	CFLAGS="$ocflags"
293	+
294		;;
295		esac
296
#	Line 291 | Line 315 | dnl to be put into the config.h file
315		dnl $1 -- the macro to define
316		dnl $2 -- the value to translate
317		AC_DEFUN(AC_TRANSLATE_DEFINE, [
318	<	if [[ "x$2" = "xyes" ]]; then
318	>	if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
319		AC_DEFINE($1)
320		fi
321		])
322
323	+	dnl Various checks if the system supports vm_allocate() and the like functions.
324	+	have_mach_vm=no
325	+	if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
326	+	"x$ac_cv_func_vm_protect" = "xyes" ]]; then
327	+	have_mach_vm=yes
328	+	fi
329	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
330	+
331	+	dnl Check that vm_allocate(), vm_protect() work
332	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
333	+
334	+	AC_CACHE_CHECK("whether vm_protect works",
335	+	ac_cv_vm_protect_works, [
336	+	AC_LANG_SAVE
337	+	AC_LANG_CPLUSPLUS
338	+	ac_cv_vm_protect_works=yes
339	+	dnl First the tests that should segfault
340	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
341	+	AC_TRY_RUN([
342	+	#define CONFIGURE_TEST_VM_MAP
343	+	#define TEST_VM_PROT_$test_def
344	+	#include "vm_alloc.cpp"
345	+	], ac_cv_vm_protect_works=no, rm -f core,
346	+	dnl When cross-compiling, do not assume anything
347	+	ac_cv_vm_protect_works="guessing no"
348	+	)
349	+	done
350	+	AC_TRY_RUN([
351	+	#define CONFIGURE_TEST_VM_MAP
352	+	#define TEST_VM_PROT_RDWR_WRITE
353	+	#include "vm_alloc.cpp"
354	+	], , ac_cv_vm_protect_works=no,
355	+	dnl When cross-compiling, do not assume anything
356	+	ac_cv_vm_protect_works="guessing no"
357	+	)
358	+	AC_LANG_RESTORE
359	+	]
360	+	)
361	+
362	+	dnl Remove support for vm_allocate() if vm_protect() does not work
363	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
364	+	case $ac_cv_vm_protect_works in
365	+	*yes) have_mach_vm=yes;;
366	+	*no) have_mach_vm=no;;
367	+	esac
368	+	fi
369	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
370	+
371	+	fi dnl HAVE_MACH_VM
372	+
373	+	dnl Various checks if the system supports mmap() and the like functions.
374	+	dnl ... and Mach memory allocators are not supported
375	+	have_mmap_vm=no
376	+	if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
377	+	"x$ac_cv_func_mprotect" = "xyes" ]]; then
378	+	if [[ "x$have_mach_vm" = "xno" ]]; then
379	+	have_mmap_vm=yes
380	+	fi
381	+	fi
382	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm")
383	+
384	+	dnl Check that mmap() and associated functions work.
385	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
386	+
387	+	dnl Check if we have a working anonymous mmap()
388	+	AC_CACHE_CHECK("whether mmap supports MAP_ANON",
389	+	ac_cv_mmap_anon, [
390	+	AC_LANG_SAVE
391	+	AC_LANG_CPLUSPLUS
392	+	AC_TRY_RUN([
393	+	#define HAVE_MMAP_ANON
394	+	#define CONFIGURE_TEST_VM_MAP
395	+	#define TEST_VM_MMAP_ANON
396	+	#include "vm_alloc.cpp"
397	+	], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
398	+	dnl When cross-compiling, do not assume anything.
399	+	ac_cv_mmap_anon="guessing no"
400	+	)
401	+	AC_LANG_RESTORE
402	+	]
403	+	)
404	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon")
405	+
406	+	AC_CACHE_CHECK("whether mmap supports MAP_ANONYMOUS",
407	+	ac_cv_mmap_anonymous, [
408	+	AC_LANG_SAVE
409	+	AC_LANG_CPLUSPLUS
410	+	AC_TRY_RUN([
411	+	#define HAVE_MMAP_ANONYMOUS
412	+	#define CONFIGURE_TEST_VM_MAP
413	+	#define TEST_VM_MMAP_ANON
414	+	#include "vm_alloc.cpp"
415	+	], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
416	+	dnl When cross-compiling, do not assume anything.
417	+	ac_cv_mmap_anonymous="guessing no"
418	+	)
419	+	AC_LANG_RESTORE
420	+	]
421	+	)
422	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous")
423	+
424	+	AC_CACHE_CHECK("whether mprotect works",
425	+	ac_cv_mprotect_works, [
426	+	AC_LANG_SAVE
427	+	AC_LANG_CPLUSPLUS
428	+	ac_cv_mprotect_works=yes
429	+	dnl First the tests that should segfault
430	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
431	+	AC_TRY_RUN([
432	+	#define CONFIGURE_TEST_VM_MAP
433	+	#define TEST_VM_PROT_$test_def
434	+	#include "vm_alloc.cpp"
435	+	], ac_cv_mprotect_works=no, rm -f core,
436	+	dnl When cross-compiling, do not assume anything
437	+	ac_cv_mprotect_works="guessing no"
438	+	)
439	+	done
440	+	AC_TRY_RUN([
441	+	#define CONFIGURE_TEST_VM_MAP
442	+	#define TEST_VM_PROT_RDWR_WRITE
443	+	#include "vm_alloc.cpp"
444	+	], , ac_cv_mprotect_works=no,
445	+	dnl When cross-compiling, do not assume anything
446	+	ac_cv_mprotect_works="guessing no"
447	+	)
448	+	AC_LANG_RESTORE
449	+	]
450	+	)
451	+
452	+	dnl Remove support for mmap() if mprotect() does not work
453	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
454	+	case $ac_cv_mprotect_works in
455	+	*yes) have_mmap_vm=yes;;
456	+	*no) have_mmap_vm=no;;
457	+	esac
458	+	fi
459	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm)
460	+
461	+	fi dnl HAVE_MMAP_VM
462	+
463		dnl Check if we can mmap 0x2000 bytes from 0x0000
464		AC_CACHE_CHECK("whether we can map Low Memory area 0x0000-0x2000",
465		ac_cv_can_map_lm, [
466		AC_LANG_SAVE
467		AC_LANG_CPLUSPLUS
468		AC_TRY_RUN([
469	<	#include <unistd.h>
470	<	#include <fcntl.h>
471	<	#include <sys/mman.h>
472	<
473	<	int main()
474	<	{ int zero_fd; char * lm;
475	<	if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
476	<	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);
469	>	#include "vm_alloc.cpp"
470	>	int main(void) { /* returns 0 if we could map the lowmem globals */
471	>	volatile char * lm;
472	>	if (vm_init() < 0) exit(1);
473	>	if ((lm = (volatile char *)vm_acquire_fixed(0, 0x2000)) == VM_MAP_FAILED) exit(1);
474	>	lm[0] = 'z';
475	>	if (vm_release((char *)lm, 0x2000) < 0) exit(1);
476	>	vm_exit(); exit(0);
477		}
478	<	],
479	<	[ac_cv_can_map_lm=yes],
480	<	[ac_cv_can_map_lm=no]
478	>	], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
479	>	dnl When cross-compiling, do not assume anything.
480	>	ac_cv_can_map_lm="guessing no"
481		)
482		AC_LANG_RESTORE
483		]
484		)
485
486	<	dnl Check if extended signals are supported.
487	<	AC_CACHE_CHECK("whether your system supports extended signal handlers",
488	<	ac_cv_have_extended_signals, [
486	>	dnl Check signal handlers need to be reinstalled
487	>	AC_CACHE_CHECK("whether signal handlers need to be reinstalled",
488	>	ac_cv_signal_need_reinstall, [
489		AC_LANG_SAVE
490		AC_LANG_CPLUSPLUS
491		AC_TRY_RUN([
332	–	#include <unistd.h>
492		#include <stdlib.h>
493	+	#ifdef HAVE_UNISTD_H
494	+	#include <unistd.h>
495	+	#endif
496		#include <signal.h>
497	<	#include <fcntl.h>
498	<	#include <sys/mman.h>
499	<
500	<	static volatile caddr_t mem = 0;
501	<	static int zero_fd = -1;
497	>	static int handled_signal = 0;
498	>	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
499	>	int main(void) { /* returns 0 if signals need not to be reinstalled */
500	>	signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
501	>	exit(handled_signal == 2);
502	>	}
503	>	], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
504	>	dnl When cross-compiling, do not assume anything.
505	>	ac_cv_signal_need_reinstall="guessing yes"
506	>	)
507	>	AC_LANG_RESTORE
508	>	]
509	>	)
510	>	AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall")
511
512	<	static RETSIGTYPE segfault_handler(int, siginfo_t * sip, void *)
513	<	{ if ((caddr_t)(sip->si_addr) != mem) exit(1);
514	<	munmap(mem, getpagesize()); close(zero_fd); exit(0); }
515	<
516	<	int main()
517	<	{ if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
518	<	if ((mem = (caddr_t)mmap(0, getpagesize(), PROT_READ, MAP_PRIVATE, zero_fd, 0)) == (caddr_t)MAP_FAILED) exit(1);
519	<	struct sigaction sa; sa.sa_sigaction = segfault_handler; sa.sa_flags = SA_SIGINFO;
520	<	sigaction(SIGSEGV, &sa, 0);
521	<	mem[0] = 0;
522	<	exit(1); // should not be reached
512	>	dnl Check if sigaction handlers need to be reinstalled
513	>	AC_CACHE_CHECK("whether sigaction handlers need to be reinstalled",
514	>	ac_cv_sigaction_need_reinstall, [
515	>	AC_LANG_SAVE
516	>	AC_LANG_CPLUSPLUS
517	>	AC_TRY_RUN([
518	>	#include <stdlib.h>
519	>	#ifdef HAVE_UNISTD_H
520	>	#include <unistd.h>
521	>	#endif
522	>	#include <signal.h>
523	>	static int handled_signal = 0;
524	>	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
525	>	typedef RETSIGTYPE (*signal_handler)(int);
526	>	static signal_handler mysignal(int sig, signal_handler handler) {
527	>	struct sigaction old_sa;
528	>	struct sigaction new_sa;
529	>	new_sa.sa_handler = handler;
530	>	return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
531		}
532	<	],
533	<	[ac_cv_have_extended_signals=yes],
534	<	[ac_cv_have_extended_signals=no]
532	>	int main(void) { /* returns 0 if signals need not to be reinstalled */
533	>	mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
534	>	exit(handled_signal == 2);
535	>	}
536	>	], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
537	>	dnl When cross-compiling, do not assume anything.
538	>	ac_cv_sigaction_need_reinstall="guessing yes"
539	>	)
540	>	AC_LANG_RESTORE
541	>	]
542	>	)
543	>	AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall")
544	>
545	>	dnl Check if extended signals are supported.
546	>	AC_CACHE_CHECK("whether your system supports extended signal handlers",
547	>	ac_cv_have_extended_signals, [
548	>	AC_LANG_SAVE
549	>	AC_LANG_CPLUSPLUS
550	>	AC_TRY_RUN([
551	>	#define HAVE_SIGINFO_T 1
552	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
553	>	#include "vm_alloc.cpp"
554	>	#include "sigsegv.cpp"
555	>	], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
556	>	dnl When cross-compiling, do not assume anything.
557	>	ac_cv_have_extended_signals=no
558		)
559		AC_LANG_RESTORE
560		]
#	Line 361 | Line 563 | AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac
563
564		dnl Otherwise, check for subterfuges.
565		if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
566	<	case "$target_os" in
567	<	linux*)
568	<	if [[ "x$HAVE_I386" = "xyes" ]]; then
569	<	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
570	<	ac_cv_have_sigcontext_hack, [
571	<	AC_LANG_SAVE
572	<	AC_LANG_CPLUSPLUS
573	<	AC_TRY_RUN([
574	<	#include <unistd.h>
575	<	#include <signal.h>
576	<	#include <fcntl.h>
577	<	#include <sys/mman.h>
578	<
579	<	static volatile caddr_t mem = 0;
580	<	static int zero_fd = -1;
581	<
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, $ac_cv_have_sigcontext_hack)
471	<	fi
472	<	;;
473	<	esac
566	>	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
567	>	ac_cv_have_sigcontext_hack, [
568	>	AC_LANG_SAVE
569	>	AC_LANG_CPLUSPLUS
570	>	AC_TRY_RUN([
571	>	#define HAVE_SIGCONTEXT_SUBTERFUGE 1
572	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
573	>	#include "vm_alloc.cpp"
574	>	#include "sigsegv.cpp"
575	>	], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
576	>	dnl When cross-compiling, do not assume anything.
577	>	ac_cv_have_sigcontext_hack=no
578	>	)
579	>	AC_LANG_RESTORE
580	>	])
581	>	AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack")
582		fi
583
584		dnl Can we do Video on SEGV Signals ?
#	Line 553 | Line 661 | AC_EGREP_CPP(yes,
661		#endif
662		], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
663
664	+	dnl Check for GCC 3.0 or higher.
665	+	HAVE_GCC30=no
666	+	AC_MSG_CHECKING(for GCC 3.0 or higher)
667	+	AC_EGREP_CPP(yes,
668	+	[#if __GNUC__ >= 3
669	+	yes
670	+	#endif
671	+	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
672	+
673		dnl Set "-fomit-frame-pointer" on i386 GCC 2.7 or higher.
674		if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
675		CFLAGS="$CFLAGS -fomit-frame-pointer"
676		CXXFLAGS="$CXXFLAGS -fomit-frame-pointer"
677		fi
678
679	+	dnl (gb) Do not merge constants since it breaks fpu/fpu_x86.cpp.
680	+	dnl As of 2001/08/02, this affects the following compilers:
681	+	dnl Official: probably gcc-3.1 (mainline CVS)
682	+	dnl Mandrake: gcc-2.96 >= 0.59mdk, gcc-3.0.1 >= 0.1mdk
683	+	dnl Red Hat : gcc-2.96 >= 89, gcc-3.0 >= 1
684	+	if [[ "x$HAVE_GCC27" = "xyes" ]]; then
685	+	SAVED_CXXFLAGS="$CXXFLAGS"
686	+	CXXFLAGS="$CXXFLAGS -fno-merge-constants"
687	+	AC_CACHE_CHECK([whether GCC supports constants merging], ac_cv_gcc_constants_merging, [
688	+	AC_LANG_SAVE
689	+	AC_LANG_CPLUSPLUS
690	+	AC_TRY_COMPILE([],[],[ac_cv_gcc_constants_merging=yes],[ac_cv_gcc_constants_merging=no])
691	+	AC_LANG_RESTORE
692	+	])
693	+	if [[ "x$ac_cv_gcc_constants_merging" != "xyes" ]]; then
694	+	CXXFLAGS="$SAVED_CXXFLAGS"
695	+	fi
696	+	fi
697	+
698		dnl Select appropriate CPU source and REGPARAM define.
699		ASM_OPTIMIZATIONS=none
700		CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
701	<	FPUSRCS="../uae_cpu/fpp.cpp"
702	<	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
701	>	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
702	>	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$OS_TYPE" != "xfreebsd" ]]; then
703		dnl i386 CPU
704		DEFINES="$DEFINES -DREGPARAM=\"__attribute__((regparm(3)))\""
705		if [[ "x$HAVE_GAS" = "xyes" ]]; then
706		ASM_OPTIMIZATIONS=i386
707		DEFINES="$DEFINES -DX86_ASSEMBLY -DUNALIGNED_PROFITABLE -DOPTIMIZED_FLAGS"
708	<	CPUSRCS="../uae_cpu/compiler.cpp cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
708	>	CPUSRCS="cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
709		FPUSRCS="../uae_cpu/fpu_x86.cpp"
710		fi
711		elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
#	Line 601 | Line 737 | elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]
737		CPUSRCS="asm_support.s"
738		fi
739
740	+	dnl Select appropriate FPU source.
741	+	dnl 1. Optimized X86 assembly core if target is i386 architecture
742	+	SAVED_DEFINES=$DEFINES
743	+	if [[ "x$FPE_CORE" = "xdefault" ]]; then
744	+	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
745	+	DEFINES="$DEFINES -DFPU_X86"
746	+	FPE_CORE_STR="i386 optimized core"
747	+	FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
748	+	FPE_CORE="i386"
749	+	else
750	+	FPE_CORE="uae"
751	+	fi
752	+	fi
753	+
754	+	dnl 2. JIT-FPU only supports IEEE-based implementation.
755	+	if [[ "x$WANT_JIT_FPU" = "xyes" -a "x$FPE_CORE" != "xieee" ]]; then
756	+	AC_MSG_WARN([Sorry, JIT-FPU supports only the "ieee" FPE implementation])
757	+	FPE_CORE="ieee"
758	+	dnl Restore previous variables. FPE_CORE_STR and FPUSRCS are overwritten
759	+	DEFINES=$SAVED_DEFINES
760	+	fi
761	+
762	+	dnl 3. Choose either IEEE-based implementation or the old UAE core
763	+	if [[ "x$FPE_CORE" = "xieee" ]]; then
764	+	AC_CHECK_HEADERS(fenv.h)
765	+	AC_CHECK_FUNCS(feclearexcept fegetexceptflag feraiseexcept fesetexceptflag fetestexcept)
766	+	AC_CHECK_FUNCS(fegetround fesetround)
767	+	DEFINES="$DEFINES -DFPU_IEEE"
768	+	FPE_CORE_STR="ieee-based fpu core"
769	+	FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
770	+	elif [[ "x$FPE_CORE" = "xuae" ]]; then
771	+	DEFINES="$DEFINES -DFPU_UAE"
772	+	FPE_CORE_STR="original uae core"
773	+	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
774	+	fi
775	+
776	+	dnl Check for certain math functions
777	+	AC_CHECK_FUNCS(atanh)
778	+	AC_CHECK_FUNCS(isnan isinf)             dnl C99
779	+	AC_CHECK_FUNCS(isnanl isinfl)   dnl IEEE ?
780	+
781		dnl UAE CPU sources for all non-m68k-native architectures.
782		if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
783		CPUINCLUDES="-I../uae_cpu"
#	Line 609 | Line 786 | fi
786
787		dnl Remove the "-g" option if set for GCC.
788		if [[ "x$HAVE_GCC27" = "xyes" ]]; then
789	<	dnl gb-- Probably not the cleanest way to take
790	<	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
791	<	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
789	>	CFLAGS=`echo $CFLAGS | sed -e 's/-g//g'`
790	>	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g//g'`
791	>	fi
792	>
793	>	dnl Or if we have -Ofast
794	>	if [[ "x$HAVE_OFAST" = "xyes" ]]; then
795	>	CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -Ofast"
796	>	CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -Ofast"
797	>	CXXFLAGS="-LANG:std $CXXFLAGS"
798	>	LDFLAGS="$LDFLAGS -Ofast"
799		fi
800
801		dnl Generate Makefile.
#	Line 633 | Line 817 | echo ESD sound support ................
817		echo GTK user interface ............... : $WANT_GTK
818		echo mon debugger support ............. : $WANT_MON
819		echo Running m68k code natively ....... : $WANT_NATIVE_M68K
820	+	echo Floating-Point emulation core .... : $FPE_CORE_STR
821		echo Assembly optimizations ........... : $ASM_OPTIMIZATIONS
822		echo Addressing mode .................. : $ADDRESSING_MODE
823		echo

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