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

Comparing BasiliskII/src/Unix/configure.in (file contents):
Revision 1.24 by cebix, 2000-09-25T17:54:01Z vs.
Revision 1.49 by gbeauche, 2002-01-06T08:22:08Z

#	Line 5 | Line 5 | 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=$enableval], [WANT_FBDEV_DGA=yes])
16	<	AC_ARG_ENABLE(vosf,          [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=no])
17	<	AC_ARG_ENABLE(16bit-vidmode, [  --enable-16bit-vidmode  enable 16-bit video if possible [default=yes]], [WANT_16BIT_VIDMODE=$enableval], [WANT_16BIT_VIDMODE=yes])
16	>	AC_ARG_ENABLE(vosf,          [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$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 "$enableval" in
22	>	default)    FPE_CORE="default";; dnl fpu_x86.cpp if i386 architecture, fpu_uae.cpp otherwise
23	>	uae)            FPE_CORE="uae";;
24	>	*)                      AC_MSG_ERROR([--enable-fpe takes only one of the following values: default, uae]);;
25	>	esac
26	>	],
27	>	[ FPE_CORE="default"
28	>	])
29	>
30	>	dnl Addressing modes.
31		AC_ARG_ENABLE(addressing,
32	<	[  --enable-addressing=mode specify the addressing mode to use [default=fastest]],
32	>	[  --enable-addressing=AM  specify the addressing mode to use [default=fastest]],
33		[ case "$enableval" in
34		real)       ADDRESSING_TEST_ORDER="real";;
35		direct)     ADDRESSING_TEST_ORDER="direct";;
36		banks)      ADDRESSING_TEST_ORDER="banks";;
37	<	dnl fastest)    ADDRESSING_TEST_ORDER="real direct banks";; gb-- will enable later...
38	<	fastest)    ADDRESSING_TEST_ORDER="direct banks";;
22	<	*)          AC_MSG_ERROR([--enable-mem-addressing takes only one of the following values: fastest, real, direct, banks]);;
37	>	fastest)ADDRESSING_TEST_ORDER="direct banks";;
38	>	*)          AC_MSG_ERROR([--enable-addressing takes only one of the following values: fastest, real, direct, banks]);;
39		esac
40		],
25	–	dnl [ ADDRESSING_TEST_ORDER="real direct banks" gb-- will probably reactivate later
41		[ ADDRESSING_TEST_ORDER="direct banks"
42		])
43	+
44	+	dnl External packages.
45		AC_ARG_WITH(esd,             [  --with-esd              support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
46		AC_ARG_WITH(gtk,             [  --with-gtk              use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes])
47		AC_ARG_WITH(mon,             [  --with-mon              use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
#	Line 39 | Line 56 | case "$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/-/_/'`;;
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_$OS_TYPE"
63
#	Line 47 | Line 65 | dnl Target CPU type.
65		HAVE_I386=no
66		HAVE_M68K=no
67		HAVE_SPARC=no
68	+	HAVE_POWERPC=no
69		case "$target_cpu" in
70		i386* | i486* | i586* | i686* | i786* ) CPU_TYPE=i386 HAVE_I386=yes;;
71		m68k* ) CPU_TYPE=m68k HAVE_M68K=yes;;
72		sparc* ) CPU_TYPE=sparc HAVE_SPARC=yes;;
73	<	*) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/'`;;
73	>	powerpc* ) CPU_TYPE=powerpc HAVE_POWERPC=yes;;
74	>	*) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/g'`;;
75		esac
76		DEFINES="$DEFINES -DCPU_$CPU_TYPE"
77
#	Line 71 | Line 91 | if [[ "x$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_8080.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/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 85 | 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 112 | Line 133 | AC_CHECK_FUNCS(pthread_cancel)
133		dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
134		SEMSRC=
135		AC_CHECK_FUNCS(sem_init, , [
136	<	if [ "x$HAVE_PTHREADS" = "xyes" ]; then
136	>	if test "x$HAVE_PTHREADS" = "xyes"; then
137		SEMSRC=posix_sem.cpp
138		fi
139		])
#	Line 176 | Line 197 | fi
197
198		dnl Checks for header files.
199		AC_HEADER_STDC
200	<	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h)
200	>	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h)
201
202		dnl Checks for typedefs, structures, and compiler characteristics.
203		AC_C_BIGENDIAN
#	Line 189 | Line 210 | AC_CHECK_SIZEOF(long long, 8)
210		AC_CHECK_SIZEOF(void *, 4)
211		AC_TYPE_OFF_T
212		AC_CHECK_TYPE(loff_t, off_t)
213	+	TYPE_SOCKLEN_T
214		AC_TYPE_SIZE_T
215		AC_TYPE_SIGNAL
216		AC_HEADER_TIME
#	Line 197 | Line 219 | AC_STRUCT_TM
219		dnl Checks for library functions.
220		AC_CHECK_FUNCS(strdup cfmakeraw)
221		AC_CHECK_FUNCS(clock_gettime timer_create)
222	+	AC_CHECK_FUNCS(sigaction signal)
223	+	AC_CHECK_FUNCS(mmap mprotect munmap)
224	+	AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
225	+
226	+	dnl Darwin seems to define mach_task_self() instead of task_self().
227	+	AC_CHECK_FUNCS(mach_task_self task_self)
228
229		dnl Select system-dependant source files.
230		SERIALSRC=serial_unix.cpp
#	Line 204 | Line 232 | ETHERSRC=../dummy/ether_dummy.cpp
232		SCSISRC=../dummy/scsi_dummy.cpp
233		AUDIOSRC=../dummy/audio_dummy.cpp
234		EXTRASYSSRCS=
235	<	SUPPORTS_NATIVE_M68K=no
235	>	CAN_NATIVE_M68K=no
236		case "$target_os" in
237		linux*)
238	<	ETHERSRC=Linux/ether_linux.cpp
211	<	SCSISRC=Linux/scsi_linux.cpp
238	>	ETHERSRC=ether_unix.cpp
239		AUDIOSRC=audio_oss_esd.cpp
240	+	SCSISRC=Linux/scsi_linux.cpp
241		;;
242	<	freebsd*3.*)
242	>	freebsd*)
243	>	ETHERSRC=ether_unix.cpp
244		AUDIOSRC=audio_oss_esd.cpp
245		DEFINES="$DEFINES -DBSD_COMP"
246	+	CXXFLAGS="$CXXFLAGS -fpermissive"
247		dnl Check for the CAM library
248		AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
249		if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
250		AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
251		else
252		dnl Check for the sys kernel includes
253	<	AC_CHECK_HEADER(/sys/cam/cam.h)
254	<	if [[ "x$ac_cv_header__sys_cam_cam_h" = "xno" ]]; then
253	>	AC_CHECK_HEADER(camlib.h)
254	>	if [[ "x$ac_cv_header_camlib_h" = "xno" ]]; then
255		dnl In this case I should fix this thing including a "patch"
256		dnl to access directly to the functions in the kernel :) --Orlando
257	<	AC_MSG_WARN([Cannot find kernel includes for CAM library, disabling SCSI support.])
257	>	AC_MSG_WARN([Cannot find includes for CAM library, disabling SCSI support.])
258		else
259		SCSISRC=FreeBSD/scsi_freebsd.cpp
230	–	CXXFLAGS="$CXXFLAGS -I/sys"
231	–	CFLAGS="$CFLAGS -I/sys"
260		LIBS="$LIBS -lcam"
261		DEFINES="$DEFINES -DCAM"
262		fi
263		fi
264		;;
237	–	freebsd*)
238	–	DEFINES="$DEFINES -DBSD_COMP"
239	–	dnl Check for the SCSI library
240	–	AC_CHECK_LIB(scsi, scsi_open, HAVE_LIBSCSI=yes, HAVE_LIBSCSI=no)
241	–	if [[ "x$HAVE_LIBSCSI" = "xno" ]]; then
242	–	AC_MSG_WARN([Cannot find libscsi for SCSI management, disabling SCSI support.])
243	–	else
244	–	dnl Check for the sys kernel includes
245	–	AC_CHECK_HEADER(scsi.h sys/scsiio.h)
246	–	if [[ "x$ac_cv_header_scsi_h" = "xno" ]]; then
247	–	AC_MSG_WARN([Cannot find includes for the SCSI library, disabling SCSI support.])
248	–	else
249	–	SCSISRC=FreeBSD/scsi_freebsd.cpp
250	–	LIBS="$LIBS -lscsi"
251	–	fi
252	–	fi
253	–	;;
265		netbsd*)
266	<	SUPPORTS_NATIVE_M68K=yes
266	>	CAN_NATIVE_M68K=yes
267		;;
268		solaris*)
269		AUDIOSRC=Solaris/audio_solaris.cpp
270		DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
271		;;
272		irix*)
273	+	ETHERSRC=ether_unix.cpp
274	+	AUDIOSRC=Irix/audio_irix.cpp
275		EXTRASYSSRCS=Irix/unaligned.c
276	<	DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200"
277	<	LIBS="$LIBS -lm"
276	>	dnl IRIX headers work fine, but somehow don't define or use "STDC_HEADERS"
277	>	DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200 -DSTDC_HEADERS"
278	>	LIBS="$LIBS -laudio"
279	>	WANT_ESD=no
280	>
281	>	dnl Check if our compiler supports -Ofast (MIPSPro)
282	>	HAVE_OFAST=no
283	>	ocflags="$CFLAGS"
284	>	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / -Ofast /;s/^-g /-Ofast /;s/-g$/ -Ofast/;s/^-g$/-Ofast/'`
285	>	AC_MSG_CHECKING(if "-Ofast" works)
286	>	dnl Do a test compile of an empty function
287	>	AC_TRY_COMPILE(,, [AC_MSG_RESULT(yes); HAVE_OFAST=yes], AC_MSG_RESULT(no))
288	>	CFLAGS="$ocflags"
289	>
290		;;
291		esac
292
293	+	dnl Use 68k CPU natively?
294	+	WANT_NATIVE_M68K=no
295	+	if [[ "x$HAVE_M68K" = "xyes" -a "x$CAN_NATIVE_M68K" = "xyes" ]]; then
296	+	AC_DEFINE(ENABLE_NATIVE_M68K)
297	+	WANT_NATIVE_M68K=yes
298	+	fi
299	+
300		if [[ "x$HAVE_PTHREADS" = "xno" ]]; then
301		dnl Serial, ethernet and audio support needs pthreads
302		AC_MSG_WARN([You don't have pthreads, disabling serial, ethernet and audio support.])
#	Line 279 | Line 311 | dnl to be put into the config.h file
311		dnl $1 -- the macro to define
312		dnl $2 -- the value to translate
313		AC_DEFUN(AC_TRANSLATE_DEFINE, [
314	<	if [[ "x$2" = "xyes" ]]; then
314	>	if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
315		AC_DEFINE($1)
316		fi
317		])
318
319	+	dnl Various checks if the system supports vm_allocate() and the like functions.
320	+	have_mach_vm=no
321	+	if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
322	+	"x$ac_cv_func_vm_protect" = "xyes" ]]; then
323	+	have_mach_vm=yes
324	+	fi
325	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
326	+
327	+	dnl Check that vm_allocate(), vm_protect() work
328	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
329	+
330	+	AC_CACHE_CHECK("whether vm_protect works",
331	+	ac_cv_vm_protect_works, [
332	+	AC_LANG_SAVE
333	+	AC_LANG_CPLUSPLUS
334	+	ac_cv_vm_protect_works=yes
335	+	dnl First the tests that should segfault
336	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
337	+	AC_TRY_RUN([
338	+	#define CONFIGURE_TEST_VM_MAP
339	+	#define TEST_VM_PROT_$test_def
340	+	#include "vm_alloc.cpp"
341	+	], ac_cv_vm_protect_works=no, rm -f core,
342	+	dnl When cross-compiling, do not assume anything
343	+	ac_cv_vm_protect_works="guessing no"
344	+	)
345	+	done
346	+	AC_TRY_RUN([
347	+	#define CONFIGURE_TEST_VM_MAP
348	+	#define TEST_VM_PROT_RDWR_WRITE
349	+	#include "vm_alloc.cpp"
350	+	], , ac_cv_vm_protect_works=no,
351	+	dnl When cross-compiling, do not assume anything
352	+	ac_cv_vm_protect_works="guessing no"
353	+	)
354	+	AC_LANG_RESTORE
355	+	]
356	+	)
357	+
358	+	dnl Remove support for vm_allocate() if vm_protect() does not work
359	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
360	+	case $ac_cv_vm_protect_works in
361	+	*yes) have_mach_vm=yes;;
362	+	*no) have_mach_vm=no;;
363	+	esac
364	+	fi
365	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
366	+
367	+	fi dnl HAVE_MACH_VM
368	+
369	+	dnl Various checks if the system supports mmap() and the like functions.
370	+	dnl ... and Mach memory allocators are not supported
371	+	have_mmap_vm=no
372	+	if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
373	+	"x$ac_cv_func_mprotect" = "xyes" ]]; then
374	+	if [[ "x$have_mach_vm" = "xno" ]]; then
375	+	have_mmap_vm=yes
376	+	fi
377	+	fi
378	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm")
379	+
380	+	dnl Check that mmap() and associated functions work.
381	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
382	+
383	+	dnl Check if we have a working anonymous mmap()
384	+	AC_CACHE_CHECK("whether mmap supports MAP_ANON",
385	+	ac_cv_mmap_anon, [
386	+	AC_LANG_SAVE
387	+	AC_LANG_CPLUSPLUS
388	+	AC_TRY_RUN([
389	+	#define HAVE_MMAP_ANON
390	+	#define CONFIGURE_TEST_VM_MAP
391	+	#define TEST_VM_MMAP_ANON
392	+	#include "vm_alloc.cpp"
393	+	], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
394	+	dnl When cross-compiling, do not assume anything.
395	+	ac_cv_mmap_anon="guessing no"
396	+	)
397	+	AC_LANG_RESTORE
398	+	]
399	+	)
400	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon")
401	+
402	+	AC_CACHE_CHECK("whether mmap supports MAP_ANONYMOUS",
403	+	ac_cv_mmap_anonymous, [
404	+	AC_LANG_SAVE
405	+	AC_LANG_CPLUSPLUS
406	+	AC_TRY_RUN([
407	+	#define HAVE_MMAP_ANONYMOUS
408	+	#define CONFIGURE_TEST_VM_MAP
409	+	#define TEST_VM_MMAP_ANON
410	+	#include "vm_alloc.cpp"
411	+	], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
412	+	dnl When cross-compiling, do not assume anything.
413	+	ac_cv_mmap_anonymous="guessing no"
414	+	)
415	+	AC_LANG_RESTORE
416	+	]
417	+	)
418	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous")
419	+
420	+	AC_CACHE_CHECK("whether mprotect works",
421	+	ac_cv_mprotect_works, [
422	+	AC_LANG_SAVE
423	+	AC_LANG_CPLUSPLUS
424	+	ac_cv_mprotect_works=yes
425	+	dnl First the tests that should segfault
426	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
427	+	AC_TRY_RUN([
428	+	#define CONFIGURE_TEST_VM_MAP
429	+	#define TEST_VM_PROT_$test_def
430	+	#include "vm_alloc.cpp"
431	+	], ac_cv_mprotect_works=no, rm -f core,
432	+	dnl When cross-compiling, do not assume anything
433	+	ac_cv_mprotect_works="guessing no"
434	+	)
435	+	done
436	+	AC_TRY_RUN([
437	+	#define CONFIGURE_TEST_VM_MAP
438	+	#define TEST_VM_PROT_RDWR_WRITE
439	+	#include "vm_alloc.cpp"
440	+	], , ac_cv_mprotect_works=no,
441	+	dnl When cross-compiling, do not assume anything
442	+	ac_cv_mprotect_works="guessing no"
443	+	)
444	+	AC_LANG_RESTORE
445	+	]
446	+	)
447	+
448	+	dnl Remove support for mmap() if mprotect() does not work
449	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
450	+	case $ac_cv_mprotect_works in
451	+	*yes) have_mmap_vm=yes;;
452	+	*no) have_mmap_vm=no;;
453	+	esac
454	+	fi
455	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm)
456	+
457	+	fi dnl HAVE_MMAP_VM
458	+
459		dnl Check if we can mmap 0x2000 bytes from 0x0000
460		AC_CACHE_CHECK("whether we can map Low Memory area 0x0000-0x2000",
461		ac_cv_can_map_lm, [
462		AC_LANG_SAVE
463		AC_LANG_CPLUSPLUS
464		AC_TRY_RUN([
465	<	#include <unistd.h>
466	<	#include <fcntl.h>
467	<	#include <sys/mman.h>
468	<
469	<	int main()
470	<	{ int zero_fd; char * lm;
471	<	if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
472	<	if ((lm = (char *)mmap((caddr_t)0x0000, 0x2000, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, zero_fd, 0)) == MAP_FAILED) exit(1);
301	<	lm[0] = 0x12;
302	<	munmap(lm, 0x2000);
303	<	close(zero_fd);
304	<	exit(0);
465	>	#include "vm_alloc.cpp"
466	>	int main(void) { /* returns 0 if we could map the lowmem globals */
467	>	volatile char * lm;
468	>	if (vm_init() < 0) exit(1);
469	>	if ((lm = (volatile char *)vm_acquire_fixed(0, 0x2000)) == VM_MAP_FAILED) exit(1);
470	>	lm[0] = 'z';
471	>	if (vm_release((char *)lm, 0x2000) < 0) exit(1);
472	>	vm_exit(); exit(0);
473		}
474	<	],
475	<	[ac_cv_can_map_lm=yes],
476	<	[ac_cv_can_map_lm=no]
474	>	], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
475	>	dnl When cross-compiling, do not assume anything.
476	>	ac_cv_can_map_lm="guessing no"
477		)
478		AC_LANG_RESTORE
479		]
480		)
481
482	<	dnl Check if extended signals are supported.
483	<	AC_CACHE_CHECK("whether your system supports extended signal handlers",
484	<	ac_cv_have_extended_signals, [
482	>	dnl Check signal handlers need to be reinstalled
483	>	AC_CACHE_CHECK("whether signal handlers need to be reinstalled",
484	>	ac_cv_signal_need_reinstall, [
485		AC_LANG_SAVE
486		AC_LANG_CPLUSPLUS
487		AC_TRY_RUN([
488	+	#include <stdlib.h>
489	+	#ifdef HAVE_UNISTD_H
490		#include <unistd.h>
491	+	#endif
492		#include <signal.h>
493	<	#include <fcntl.h>
494	<	#include <sys/mman.h>
495	<
496	<	static volatile caddr_t mem = 0;
497	<	static int zero_fd = -1;
493	>	static int handled_signal = 0;
494	>	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
495	>	int main(void) { /* returns 0 if signals need not to be reinstalled */
496	>	signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
497	>	exit(handled_signal == 2);
498	>	}
499	>	], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
500	>	dnl When cross-compiling, do not assume anything.
501	>	ac_cv_signal_need_reinstall="guessing yes"
502	>	)
503	>	AC_LANG_RESTORE
504	>	]
505	>	)
506	>	AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall")
507
508	<	static RETSIGTYPE segfault_handler(int, siginfo_t * sip, void *)
509	<	{ if ((caddr_t)(sip->si_addr) != mem) exit(1);
510	<	munmap(mem, getpagesize()); close(zero_fd); exit(0); }
511	<
512	<	int main()
513	<	{ if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
514	<	if ((mem = (caddr_t)mmap(0, getpagesize(), PROT_READ, MAP_PRIVATE, zero_fd, 0)) == (caddr_t)MAP_FAILED) exit(1);
515	<	struct sigaction sa; sa.sa_sigaction = segfault_handler; sa.sa_flags = 0;
516	<	sigaction(SIGSEGV, &sa, 0);
517	<	mem[0] = 0;
518	<	exit(1); // should not be reached
508	>	dnl Check if sigaction handlers need to be reinstalled
509	>	AC_CACHE_CHECK("whether sigaction handlers need to be reinstalled",
510	>	ac_cv_sigaction_need_reinstall, [
511	>	AC_LANG_SAVE
512	>	AC_LANG_CPLUSPLUS
513	>	AC_TRY_RUN([
514	>	#include <stdlib.h>
515	>	#ifdef HAVE_UNISTD_H
516	>	#include <unistd.h>
517	>	#endif
518	>	#include <signal.h>
519	>	static int handled_signal = 0;
520	>	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
521	>	typedef RETSIGTYPE (*signal_handler)(int);
522	>	static signal_handler mysignal(int sig, signal_handler handler) {
523	>	struct sigaction old_sa;
524	>	struct sigaction new_sa;
525	>	new_sa.sa_handler = handler;
526	>	return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
527	>	}
528	>	int main(void) { /* returns 0 if signals need not to be reinstalled */
529	>	mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
530	>	exit(handled_signal == 2);
531		}
532	<	],
533	<	[ac_cv_have_extended_signals=yes],
534	<	[ac_cv_have_extended_signals=no]
532	>	], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
533	>	dnl When cross-compiling, do not assume anything.
534	>	ac_cv_sigaction_need_reinstall="guessing yes"
535	>	)
536	>	AC_LANG_RESTORE
537	>	]
538	>	)
539	>	AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall")
540	>
541	>	dnl Check if extended signals are supported.
542	>	AC_CACHE_CHECK("whether your system supports extended signal handlers",
543	>	ac_cv_have_extended_signals, [
544	>	AC_LANG_SAVE
545	>	AC_LANG_CPLUSPLUS
546	>	AC_TRY_RUN([
547	>	#define HAVE_SIGINFO_T 1
548	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
549	>	#include "vm_alloc.cpp"
550	>	#include "sigsegv.cpp"
551	>	], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
552	>	dnl When cross-compiling, do not assume anything.
553	>	ac_cv_have_extended_signals=no
554		)
555		AC_LANG_RESTORE
556		]
#	Line 348 | Line 559 | AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac
559
560		dnl Otherwise, check for subterfuges.
561		if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
562	<	case "$target_os" in
563	<	linux*)
564	<	if [[ "x$HAVE_I386" = "xyes" ]]; then
565	<	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
566	<	ac_cv_have_sigcontext_hack, [
567	<	AC_LANG_SAVE
568	<	AC_LANG_CPLUSPLUS
569	<	AC_TRY_RUN([
570	<	#include <unistd.h>
571	<	#include <signal.h>
572	<	#include <fcntl.h>
573	<	#include <sys/mman.h>
574	<
575	<	static volatile caddr_t mem = 0;
576	<	static int zero_fd = -1;
577	<
367	<	static RETSIGTYPE segfault_handler(int, struct sigcontext scs)
368	<	{ if ((caddr_t)(scs.cr2) != mem) exit(1);
369	<	munmap(mem, getpagesize()); close(zero_fd); exit(0); }
370	<
371	<	int main()
372	<	{ if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
373	<	if ((mem = (caddr_t)mmap(0, getpagesize(), PROT_READ, MAP_PRIVATE, zero_fd, 0)) == (caddr_t)MAP_FAILED) exit(1);
374	<	struct sigaction sa; sa.sa_flags = 0;
375	<	sa.sa_handler = (RETSIGTYPE (*)(int))segfault_handler;
376	<	sigaction(SIGSEGV, &sa, 0);
377	<	mem[0] = 0;
378	<	exit(1); // should not be reached
379	<	}
380	<	],
381	<	[ac_cv_have_sigcontext_hack=yes],
382	<	[ac_cv_have_sigcontext_hack=no]
383	<	)
384	<	AC_LANG_RESTORE
385	<	])
386	<	AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, $ac_cv_have_sigcontext_hack)
387	<	fi
388	<	;;
389	<	esac
562	>	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
563	>	ac_cv_have_sigcontext_hack, [
564	>	AC_LANG_SAVE
565	>	AC_LANG_CPLUSPLUS
566	>	AC_TRY_RUN([
567	>	#define HAVE_SIGCONTEXT_SUBTERFUGE 1
568	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
569	>	#include "vm_alloc.cpp"
570	>	#include "sigsegv.cpp"
571	>	], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
572	>	dnl When cross-compiling, do not assume anything.
573	>	ac_cv_have_sigcontext_hack=no
574	>	)
575	>	AC_LANG_RESTORE
576	>	])
577	>	AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack")
578		fi
579
580		dnl Can we do Video on SEGV Signals ?
#	Line 396 | Line 584 | if [[ "$ac_cv_have_extended_signals" = "
584		fi
585
586		dnl Determine the addressing mode to use
587	<	ADDRESSING_MODE=""
588	<	AC_MSG_CHECKING([for the addressing mode to use])
589	<	for am in $ADDRESSING_TEST_ORDER; do
590	<	case $am in
591	<	real)
592	<	dnl Requires ability to mmap Low Memory globals.
593	<	if [[ "x$ac_cv_can_map_lm" = "xno" ]]; then
594	<	continue
595	<	fi
596	<	if [[ "x$ac_cv_c_bigendian" = "xyes" ]]; then
597	<	dnl Requires only VOSF if 16-bit vidmode enable
410	<	if [[ "x$WANT_16BIT_VIDMODE" = "xyes" ]]; then
411	<	if [[ "x$CAN_VOSF" = "xno" ]]; then
412	<	continue
413	<	fi
414	<	else
415	<	DEFINES="$DEFINES -DDISABLE_16BIT_VIDMODE"
587	>	if [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
588	>	ADDRESSING_MODE="real"
589	>	else
590	>	ADDRESSING_MODE=""
591	>	AC_MSG_CHECKING([for the addressing mode to use])
592	>	for am in $ADDRESSING_TEST_ORDER; do
593	>	case $am in
594	>	real)
595	>	dnl Requires ability to mmap() Low Memory globals
596	>	if [[ "x$ac_cv_can_map_lm" = "xno" ]]; then
597	>	continue
598		fi
599	<	else
418	<	dnl Requires VOSF
599	>	dnl Requires VOSF screen updates
600		if [[ "x$CAN_VOSF" = "xno" ]]; then
601		continue
602		fi
603	<	fi
604	<	dnl Real addressing will probably work
424	<	ADDRESSING_MODE="real"
425	<	WANT_VOSF=yes dnl we can use VOSF and we need it actually
426	<	DEFINES="$DEFINES -DREAL_ADDRESSING"
427	<	break
428	<	;;
429	<	direct)
430	<	dnl Requires VOSF
431	<	if [[ "x$CAN_VOSF" = "xyes" ]]; then
432	<	ADDRESSING_MODE="direct"
603	>	dnl Real addressing will probably work.
604	>	ADDRESSING_MODE="real"
605		WANT_VOSF=yes dnl we can use VOSF and we need it actually
606	<	DEFINES="$DEFINES -DDIRECT_ADDRESSING"
606	>	DEFINES="$DEFINES -DREAL_ADDRESSING"
607		break
608	<	fi
609	<	;;
610	<	banks)
611	<	dnl Default addressing mode
608	>	;;
609	>	direct)
610	>	dnl Requires VOSF screen updates
611	>	if [[ "x$CAN_VOSF" = "xyes" ]]; then
612	>	ADDRESSING_MODE="direct"
613	>	WANT_VOSF=yes dnl we can use VOSF and we need it actually
614	>	DEFINES="$DEFINES -DDIRECT_ADDRESSING"
615	>	break
616	>	fi
617	>	;;
618	>	banks)
619	>	dnl Default addressing mode
620	>	ADDRESSING_MODE="memory banks"
621	>	break
622	>	;;
623	>	*)
624	>	AC_MSG_ERROR([Internal configure.in script error for $am addressing mode])
625	>	esac
626	>	done
627	>	AC_MSG_RESULT($ADDRESSING_MODE)
628	>	if [[ "x$ADDRESSING_MODE" = "x" ]]; then
629	>	AC_MSG_WARN([Sorry, no suitable addressing mode in $ADDRESSING_TEST_ORDER])
630		ADDRESSING_MODE="memory banks"
631	<	break
442	<	;;
443	<	*)
444	<	AC_MSG_ERROR([Internal configure.in script error for $am addressing mode])
445	<	esac
446	<	done
447	<	AC_MSG_RESULT($ADDRESSING_MODE)
448	<	if [[ "x$ADDRESSING_MODE" = "x" ]]; then
449	<	AC_MSG_WARN([Sorry, no suitable addressing mode in $ADDRESSING_TEST_ORDER])
450	<	ADDRESSING_MODE="memory banks"
631	>	fi
632		fi
633
634	<	dnl Since real and direct addressing modes automatically activate VOSF,
635	<	dnl I put this test here.
455	<	if [[ "x$WANT_VOSF" = "xyes" ]]; then
456	<	if [[ "x$CAN_VOSF" = "xno" ]]; then
457	<	AC_MSG_WARN([Sorry, your system does not support Video on SEGV signals])
458	<	WANT_VOSF=no
459	<	else
634	>	dnl Enable VOSF screen updates with this feature is requested and feasible
635	>	if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then
636		AC_DEFINE(ENABLE_VOSF)
637	<	fi
637	>	else
638	>	WANT_VOSF=no
639		fi
640
641		dnl Check for GAS.
#	Line 480 | Line 657 | AC_EGREP_CPP(yes,
657		#endif
658		], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
659
660	+	dnl Check for GCC 3.0 or higher.
661	+	HAVE_GCC30=no
662	+	AC_MSG_CHECKING(for GCC 3.0 or higher)
663	+	AC_EGREP_CPP(yes,
664	+	[#if __GNUC__ >= 3
665	+	yes
666	+	#endif
667	+	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
668	+
669		dnl Set "-fomit-frame-pointer" on i386 GCC 2.7 or higher.
670		if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
671		CFLAGS="$CFLAGS -fomit-frame-pointer"
672		CXXFLAGS="$CXXFLAGS -fomit-frame-pointer"
673		fi
674
675	+	dnl (gb) Do not merge constants since it breaks fpu/fpu_x86.cpp.
676	+	dnl As of 2001/08/02, this affects the following compilers:
677	+	dnl Official: probably gcc-3.1 (mainline CVS)
678	+	dnl Mandrake: gcc-2.96 >= 0.59mdk, gcc-3.0.1 >= 0.1mdk
679	+	dnl Red Hat : gcc-2.96 >= 89, gcc-3.0 >= 1
680	+	if [[ "x$HAVE_GCC27" = "xyes" ]]; then
681	+	SAVED_CXXFLAGS="$CXXFLAGS"
682	+	CXXFLAGS="$CXXFLAGS -fno-merge-constants"
683	+	AC_CACHE_CHECK([whether GCC supports constants merging], ac_cv_gcc_constants_merging, [
684	+	AC_LANG_SAVE
685	+	AC_LANG_CPLUSPLUS
686	+	AC_TRY_COMPILE([],[],[ac_cv_gcc_constants_merging=yes],[ac_cv_gcc_constants_merging=no])
687	+	AC_LANG_RESTORE
688	+	])
689	+	if [[ "x$ac_cv_gcc_constants_merging" != "xyes" ]]; then
690	+	CXXFLAGS="$SAVED_CXXFLAGS"
691	+	fi
692	+	fi
693	+
694		dnl Select appropriate CPU source and REGPARAM define.
695		ASM_OPTIMIZATIONS=none
491	–	WANT_NATIVE_M68K=no
696		CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
697	<	FPUSRCS="../uae_cpu/fpp.cpp"
698	<	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
697	>	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
698	>	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$OS_TYPE" != "xfreebsd" ]]; then
699		dnl i386 CPU
700		DEFINES="$DEFINES -DREGPARAM=\"__attribute__((regparm(3)))\""
701		if [[ "x$HAVE_GAS" = "xyes" ]]; then
702		ASM_OPTIMIZATIONS=i386
703	<	DEFINES="$DEFINES -DX86_ASSEMBLY -DOPTFLAGS"
704	<	CPUSRCS="../uae_cpu/compiler.cpp cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
703	>	DEFINES="$DEFINES -DX86_ASSEMBLY -DUNALIGNED_PROFITABLE -DOPTIMIZED_FLAGS"
704	>	CPUSRCS="cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
705		FPUSRCS="../uae_cpu/fpu_x86.cpp"
706		fi
707		elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
#	Line 509 | Line 713 | elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HA
713		AC_MSG_RESULT($SPARC_TYPE)
714		case "$SPARC_TYPE" in
715		SPARC_V8)
716	<	ASM_OPTIMIZATIONS="SPARC V8 architecture"
717	<	DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY" dnl -DOPTFLAGS"
716	>	ASM_OPTIMIZATIONS="SPARC V8 architecture"
717	>	DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
718		CFLAGS="$CFLAGS -Wa,-Av8"
719		CXXFLAGS="$CXXFLAGS -Wa,-Av8"
720		;;
721		SPARC_V9)
722	<	ASM_OPTIMIZATIONS="SPARC V9 architecture"
723	<	DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY" dnl -DOPTFLAGS"
722	>	ASM_OPTIMIZATIONS="SPARC V9 architecture"
723	>	DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
724		CFLAGS="$CFLAGS -Wa,-Av9"
725		CXXFLAGS="$CXXFLAGS -Wa,-Av9"
726		;;
727		esac
728		;;
729		esac
730	<	elif [[ "x$HAVE_M68K" = "xyes" -a "x$SUPPORTS_NATIVE_M68K" = "xyes" ]]; then
730	>	elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
731		dnl Native m68k, no emulation
732	<	CPUSRCS=""
733	<	AC_DEFINE(ENABLE_NATIVE_M68K)
530	<	WANT_NATIVE_M68K=yes
732	>	CPUINCLUDES="-I../native_cpu"
733	>	CPUSRCS="asm_support.s"
734		fi
735
736	+	dnl Select appropriate FPU source.
737	+	dnl 1. Optimized X86 assembly core if target is i386 architecture
738	+	SAVED_DEFINES=$DEFINES
739	+	if [[ "x$FPE_CORE" = "xdefault" ]]; then
740	+	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
741	+	DEFINES="$DEFINES -DFPU_X86"
742	+	FPE_CORE_STR="i386 optimized core"
743	+	FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
744	+	FPE_CORE="i386"
745	+	else
746	+	FPE_CORE="uae"
747	+	fi
748	+	fi
749	+
750	+	dnl 2. JIT-FPU only supports IEEE-based implementation.
751	+	if [[ "x$WANT_JIT_FPU" = "xyes" -a "x$FPE_CORE" != "xieee" ]]; then
752	+	AC_MSG_WARN([Sorry, JIT-FPU supports only the "ieee" FPE implementation])
753	+	FPE_CORE="ieee"
754	+	dnl Restore previous variables. FPE_CORE_STR and FPUSRCS are overwritten
755	+	DEFINES=$SAVED_DEFINES
756	+	fi
757	+
758	+	dnl 3. Choose either IEEE-based implementation or the old UAE core
759	+	if [[ "x$FPE_CORE" = "xieee" ]]; then
760	+	AC_CHECK_HEADERS(fenv.h)
761	+	AC_CHECK_FUNCS(feclearexcept fegetexceptflag feraiseexcept fesetexceptflag fetestexcept)
762	+	AC_CHECK_FUNCS(fegetround fesetround)
763	+	DEFINES="$DEFINES -DFPU_IEEE"
764	+	FPE_CORE_STR="ieee-based fpu core"
765	+	FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
766	+	elif [[ "x$FPE_CORE" = "xuae" ]]; then
767	+	DEFINES="$DEFINES -DFPU_UAE"
768	+	FPE_CORE_STR="original uae core"
769	+	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
770	+	fi
771	+
772	+	dnl Check for certain math functions
773	+	AC_CHECK_FUNCS(atanh)
774	+	AC_CHECK_FUNCS(isnan isinf)             dnl C99
775	+	AC_CHECK_FUNCS(isnanl isinfl)   dnl IEEE ?
776	+
777		dnl UAE CPU sources for all non-m68k-native architectures.
778		if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
779		CPUINCLUDES="-I../uae_cpu"
780		CPUSRCS="../uae_cpu/basilisk_glue.cpp ../uae_cpu/memory.cpp ../uae_cpu/newcpu.cpp ../uae_cpu/readcpu.cpp $FPUSRCS cpustbl.cpp cpudefs.cpp $CPUSRCS"
537	–	else
538	–	CPUINCLUDES="-I../native_cpu"
539	–	CPUSRCS="asm_support.s"
781		fi
782
783		dnl Remove the "-g" option if set for GCC.
784		if [[ "x$HAVE_GCC27" = "xyes" ]]; then
785	<	dnl gb-- Probably not the cleanest way to take
786	<	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
787	<	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
785	>	CFLAGS=`echo $CFLAGS | sed -e 's/-g//g'`
786	>	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g//g'`
787	>	fi
788	>
789	>	dnl Or if we have -Ofast
790	>	if [[ "x$HAVE_OFAST" = "xyes" ]]; then
791	>	CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -Ofast"
792	>	CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -Ofast"
793	>	CXXFLAGS="-LANG:std $CXXFLAGS"
794	>	LDFLAGS="$LDFLAGS -Ofast"
795		fi
796
797		dnl Generate Makefile.
#	Line 565 | Line 813 | echo ESD sound support ................
813		echo GTK user interface ............... : $WANT_GTK
814		echo mon debugger support ............. : $WANT_MON
815		echo Running m68k code natively ....... : $WANT_NATIVE_M68K
816	+	echo Floating-Point emulation core .... : $FPE_CORE_STR
817		echo Assembly optimizations ........... : $ASM_OPTIMIZATIONS
818		echo Addressing mode .................. : $ADDRESSING_MODE
819		echo

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