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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 1.47 by gbeauche, 2001-08-19T16:18:30Z

#	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=$enableval], [WANT_FBDEV_DGA=yes])
12	<	AC_ARG_ENABLE(vosf,          [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=no])
13	<	AC_ARG_ENABLE(16bit-vidmode, [  --enable-16bit-vidmode  enable 16-bit video if possible [default=yes]], [WANT_16BIT_VIDMODE=$enableval], [WANT_16BIT_VIDMODE=yes])
12	>	AC_ARG_ENABLE(vosf,          [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$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 "$enableval" in
18	>	default)    FPE_CORE="default";; dnl fpu_x86.cpp if i386 architecture, fpu_uae.cpp otherwise
19	>	uae)            FPE_CORE="uae";;
20	>	*)                      AC_MSG_ERROR([--enable-fpe takes only one of the following values: default, uae]);;
21	>	esac
22	>	],
23	>	[ FPE_CORE="default"
24	>	])
25	>
26	>	dnl Addressing modes.
27		AC_ARG_ENABLE(addressing,
28	<	[  --enable-addressing=mode specify the addressing mode to use [default=fastest]],
28	>	[  --enable-addressing=AM  specify the addressing mode to use [default=fastest]],
29		[ case "$enableval" in
30		real)       ADDRESSING_TEST_ORDER="real";;
31		direct)     ADDRESSING_TEST_ORDER="direct";;
32		banks)      ADDRESSING_TEST_ORDER="banks";;
33	<	dnl fastest)    ADDRESSING_TEST_ORDER="real direct banks";; gb-- will enable later...
34	<	fastest)    ADDRESSING_TEST_ORDER="direct banks";;
22	<	*)          AC_MSG_ERROR([--enable-mem-addressing takes only one of the following values: fastest, real, direct, banks]);;
33	>	fastest)ADDRESSING_TEST_ORDER="direct banks";;
34	>	*)          AC_MSG_ERROR([--enable-addressing takes only one of the following values: fastest, real, direct, banks]);;
35		esac
36		],
25	–	dnl [ ADDRESSING_TEST_ORDER="real direct banks" gb-- will probably reactivate later
37		[ ADDRESSING_TEST_ORDER="direct banks"
38		])
39	+
40	+	dnl External packages.
41		AC_ARG_WITH(esd,             [  --with-esd              support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
42		AC_ARG_WITH(gtk,             [  --with-gtk              use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes])
43		AC_ARG_WITH(mon,             [  --with-mon              use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
#	Line 39 | Line 52 | case "$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/-/_/'`;;
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_$OS_TYPE"
59
#	Line 47 | Line 61 | dnl Target CPU type.
61		HAVE_I386=no
62		HAVE_M68K=no
63		HAVE_SPARC=no
64	+	HAVE_POWERPC=no
65		case "$target_cpu" in
66		i386* | i486* | i586* | i686* | i786* ) CPU_TYPE=i386 HAVE_I386=yes;;
67		m68k* ) CPU_TYPE=m68k HAVE_M68K=yes;;
68		sparc* ) CPU_TYPE=sparc HAVE_SPARC=yes;;
69	<	*) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/'`;;
69	>	powerpc* ) CPU_TYPE=powerpc HAVE_POWERPC=yes;;
70	>	*) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/g'`;;
71		esac
72		DEFINES="$DEFINES -DCPU_$CPU_TYPE"
73
#	Line 71 | Line 87 | if [[ "x$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_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 $mon_srcdir/disass/m68k-opc.c"
90	>	MONSRCS="$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 $mon_srcdir/disass/m68k-opc.c"
91		CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
92		AC_CHECK_LIB(readline, readline)
93		AC_CHECK_LIB(termcap, tputs)
#	Line 85 | 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 112 | Line 129 | AC_CHECK_FUNCS(pthread_cancel)
129		dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
130		SEMSRC=
131		AC_CHECK_FUNCS(sem_init, , [
132	<	if [ "x$HAVE_PTHREADS" = "xyes" ]; then
132	>	if test "x$HAVE_PTHREADS" = "xyes"; then
133		SEMSRC=posix_sem.cpp
134		fi
135		])
#	Line 176 | Line 193 | fi
193
194		dnl Checks for header files.
195		AC_HEADER_STDC
196	<	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h)
196	>	AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h)
197
198		dnl Checks for typedefs, structures, and compiler characteristics.
199		AC_C_BIGENDIAN
#	Line 197 | Line 214 | AC_STRUCT_TM
214		dnl Checks for library functions.
215		AC_CHECK_FUNCS(strdup cfmakeraw)
216		AC_CHECK_FUNCS(clock_gettime timer_create)
217	+	AC_CHECK_FUNCS(sigaction signal)
218	+	AC_CHECK_FUNCS(mmap mprotect munmap)
219	+	AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
220	+
221	+	dnl Darwin seems to define mach_task_self() instead of task_self().
222	+	AC_CHECK_FUNCS(mach_task_self task_self)
223
224		dnl Select system-dependant source files.
225		SERIALSRC=serial_unix.cpp
#	Line 204 | Line 227 | ETHERSRC=../dummy/ether_dummy.cpp
227		SCSISRC=../dummy/scsi_dummy.cpp
228		AUDIOSRC=../dummy/audio_dummy.cpp
229		EXTRASYSSRCS=
230	<	SUPPORTS_NATIVE_M68K=no
230	>	CAN_NATIVE_M68K=no
231		case "$target_os" in
232		linux*)
233	<	ETHERSRC=Linux/ether_linux.cpp
211	<	SCSISRC=Linux/scsi_linux.cpp
233	>	ETHERSRC=ether_unix.cpp
234		AUDIOSRC=audio_oss_esd.cpp
235	+	SCSISRC=Linux/scsi_linux.cpp
236		;;
237	<	freebsd*3.*)
237	>	freebsd*)
238	>	ETHERSRC=ether_unix.cpp
239		AUDIOSRC=audio_oss_esd.cpp
240		DEFINES="$DEFINES -DBSD_COMP"
241	+	CXXFLAGS="$CXXFLAGS -fpermissive"
242		dnl Check for the CAM library
243		AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
244		if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
245		AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
246		else
247		dnl Check for the sys kernel includes
248	<	AC_CHECK_HEADER(/sys/cam/cam.h)
249	<	if [[ "x$ac_cv_header__sys_cam_cam_h" = "xno" ]]; then
248	>	AC_CHECK_HEADER(camlib.h)
249	>	if [[ "x$ac_cv_header_camlib_h" = "xno" ]]; then
250		dnl In this case I should fix this thing including a "patch"
251		dnl to access directly to the functions in the kernel :) --Orlando
252	<	AC_MSG_WARN([Cannot find kernel includes for CAM library, disabling SCSI support.])
252	>	AC_MSG_WARN([Cannot find includes for CAM library, disabling SCSI support.])
253		else
254		SCSISRC=FreeBSD/scsi_freebsd.cpp
230	–	CXXFLAGS="$CXXFLAGS -I/sys"
231	–	CFLAGS="$CFLAGS -I/sys"
255		LIBS="$LIBS -lcam"
256		DEFINES="$DEFINES -DCAM"
257		fi
258		fi
259		;;
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	–	;;
260		netbsd*)
261	<	SUPPORTS_NATIVE_M68K=yes
261	>	CAN_NATIVE_M68K=yes
262		;;
263		solaris*)
264		AUDIOSRC=Solaris/audio_solaris.cpp
265		DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
266		;;
267		irix*)
268	+	AUDIOSRC=Irix/audio_irix.cpp
269		EXTRASYSSRCS=Irix/unaligned.c
270	<	DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200"
271	<	LIBS="$LIBS -lm"
270	>	dnl IRIX headers work fine, but somehow don't define or use "STDC_HEADERS"
271	>	DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200 -DSTDC_HEADERS"
272	>	LIBS="$LIBS -laudio"
273	>
274	>	dnl Check if our compiler supports -Ofast (MIPSPro)
275	>	HAVE_OFAST=no
276	>	ocflags="$CFLAGS"
277	>	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / -Ofast /;s/^-g /-Ofast /;s/-g$/ -Ofast/;s/^-g$/-Ofast/'`
278	>	AC_MSG_CHECKING(if "-Ofast" works)
279	>	dnl Do a test compile of an empty function
280	>	AC_TRY_COMPILE(,, [AC_MSG_RESULT(yes); HAVE_OFAST=yes], AC_MSG_RESULT(no))
281	>	CFLAGS="$ocflags"
282	>
283		;;
284		esac
285
286	+	dnl Use 68k CPU natively?
287	+	WANT_NATIVE_M68K=no
288	+	if [[ "x$HAVE_M68K" = "xyes" -a "x$CAN_NATIVE_M68K" = "xyes" ]]; then
289	+	AC_DEFINE(ENABLE_NATIVE_M68K)
290	+	WANT_NATIVE_M68K=yes
291	+	fi
292	+
293		if [[ "x$HAVE_PTHREADS" = "xno" ]]; then
294		dnl Serial, ethernet and audio support needs pthreads
295		AC_MSG_WARN([You don't have pthreads, disabling serial, ethernet and audio support.])
#	Line 279 | Line 304 | dnl to be put into the config.h file
304		dnl $1 -- the macro to define
305		dnl $2 -- the value to translate
306		AC_DEFUN(AC_TRANSLATE_DEFINE, [
307	<	if [[ "x$2" = "xyes" ]]; then
307	>	if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
308		AC_DEFINE($1)
309		fi
310		])
311
312	+	dnl Various checks if the system supports vm_allocate() and the like functions.
313	+	have_mach_vm=no
314	+	if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
315	+	"x$ac_cv_func_vm_protect" = "xyes" ]]; then
316	+	have_mach_vm=yes
317	+	fi
318	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
319	+
320	+	dnl Check that vm_allocate(), vm_protect() work
321	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
322	+
323	+	AC_CACHE_CHECK("whether vm_protect works",
324	+	ac_cv_vm_protect_works, [
325	+	AC_LANG_SAVE
326	+	AC_LANG_CPLUSPLUS
327	+	ac_cv_vm_protect_works=yes
328	+	dnl First the tests that should segfault
329	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
330	+	AC_TRY_RUN([
331	+	#define CONFIGURE_TEST_VM_MAP
332	+	#define TEST_VM_PROT_$test_def
333	+	#include "vm_alloc.cpp"
334	+	], ac_cv_vm_protect_works=no, rm -f core,
335	+	dnl When cross-compiling, do not assume anything
336	+	ac_cv_vm_protect_works="guessing no"
337	+	)
338	+	done
339	+	AC_TRY_RUN([
340	+	#define CONFIGURE_TEST_VM_MAP
341	+	#define TEST_VM_PROT_RDWR_WRITE
342	+	#include "vm_alloc.cpp"
343	+	], , ac_cv_vm_protect_works=no,
344	+	dnl When cross-compiling, do not assume anything
345	+	ac_cv_vm_protect_works="guessing no"
346	+	)
347	+	AC_LANG_RESTORE
348	+	]
349	+	)
350	+
351	+	dnl Remove support for vm_allocate() if vm_protect() does not work
352	+	if [[ "x$have_mach_vm" = "xyes" ]]; then
353	+	case $ac_cv_vm_protect_works in
354	+	*yes) have_mach_vm=yes;;
355	+	*no) have_mach_vm=no;;
356	+	esac
357	+	fi
358	+	AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
359	+
360	+	fi dnl HAVE_MACH_VM
361	+
362	+	dnl Various checks if the system supports mmap() and the like functions.
363	+	dnl ... and Mach memory allocators are not supported
364	+	have_mmap_vm=no
365	+	if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
366	+	"x$ac_cv_func_mprotect" = "xyes" ]]; then
367	+	if [[ "x$have_mach_vm" = "xno" ]]; then
368	+	have_mmap_vm=yes
369	+	fi
370	+	fi
371	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm")
372	+
373	+	dnl Check that mmap() and associated functions work.
374	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
375	+
376	+	dnl Check if we have a working anonymous mmap()
377	+	AC_CACHE_CHECK("whether mmap supports MAP_ANON",
378	+	ac_cv_mmap_anon, [
379	+	AC_LANG_SAVE
380	+	AC_LANG_CPLUSPLUS
381	+	AC_TRY_RUN([
382	+	#define HAVE_MMAP_ANON
383	+	#define CONFIGURE_TEST_VM_MAP
384	+	#define TEST_VM_MMAP_ANON
385	+	#include "vm_alloc.cpp"
386	+	], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
387	+	dnl When cross-compiling, do not assume anything.
388	+	ac_cv_mmap_anon="guessing no"
389	+	)
390	+	AC_LANG_RESTORE
391	+	]
392	+	)
393	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon")
394	+
395	+	AC_CACHE_CHECK("whether mmap supports MAP_ANONYMOUS",
396	+	ac_cv_mmap_anonymous, [
397	+	AC_LANG_SAVE
398	+	AC_LANG_CPLUSPLUS
399	+	AC_TRY_RUN([
400	+	#define HAVE_MMAP_ANONYMOUS
401	+	#define CONFIGURE_TEST_VM_MAP
402	+	#define TEST_VM_MMAP_ANON
403	+	#include "vm_alloc.cpp"
404	+	], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
405	+	dnl When cross-compiling, do not assume anything.
406	+	ac_cv_mmap_anonymous="guessing no"
407	+	)
408	+	AC_LANG_RESTORE
409	+	]
410	+	)
411	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous")
412	+
413	+	AC_CACHE_CHECK("whether mprotect works",
414	+	ac_cv_mprotect_works, [
415	+	AC_LANG_SAVE
416	+	AC_LANG_CPLUSPLUS
417	+	ac_cv_mprotect_works=yes
418	+	dnl First the tests that should segfault
419	+	for test_def in NONE_READ NONE_WRITE READ_WRITE; do
420	+	AC_TRY_RUN([
421	+	#define CONFIGURE_TEST_VM_MAP
422	+	#define TEST_VM_PROT_$test_def
423	+	#include "vm_alloc.cpp"
424	+	], ac_cv_mprotect_works=no, rm -f core,
425	+	dnl When cross-compiling, do not assume anything
426	+	ac_cv_mprotect_works="guessing no"
427	+	)
428	+	done
429	+	AC_TRY_RUN([
430	+	#define CONFIGURE_TEST_VM_MAP
431	+	#define TEST_VM_PROT_RDWR_WRITE
432	+	#include "vm_alloc.cpp"
433	+	], , ac_cv_mprotect_works=no,
434	+	dnl When cross-compiling, do not assume anything
435	+	ac_cv_mprotect_works="guessing no"
436	+	)
437	+	AC_LANG_RESTORE
438	+	]
439	+	)
440	+
441	+	dnl Remove support for mmap() if mprotect() does not work
442	+	if [[ "x$have_mmap_vm" = "xyes" ]]; then
443	+	case $ac_cv_mprotect_works in
444	+	*yes) have_mmap_vm=yes;;
445	+	*no) have_mmap_vm=no;;
446	+	esac
447	+	fi
448	+	AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm)
449	+
450	+	fi dnl HAVE_MMAP_VM
451	+
452		dnl Check if we can mmap 0x2000 bytes from 0x0000
453		AC_CACHE_CHECK("whether we can map Low Memory area 0x0000-0x2000",
454		ac_cv_can_map_lm, [
455		AC_LANG_SAVE
456		AC_LANG_CPLUSPLUS
457		AC_TRY_RUN([
458	<	#include <unistd.h>
459	<	#include <fcntl.h>
460	<	#include <sys/mman.h>
461	<
462	<	int main()
463	<	{ int zero_fd; char * lm;
464	<	if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
465	<	if ((lm = (char *)mmap((caddr_t)0x0000, 0x2000, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, zero_fd, 0)) == MAP_FAILED) exit(1);
301	<	lm[0] = 0x12;
302	<	munmap(lm, 0x2000);
303	<	close(zero_fd);
304	<	exit(0);
458	>	#include "vm_alloc.cpp"
459	>	int main(void) { /* returns 0 if we could map the lowmem globals */
460	>	volatile char * lm;
461	>	if (vm_init() < 0) exit(1);
462	>	if ((lm = (volatile char *)vm_acquire_fixed(0, 0x2000)) == VM_MAP_FAILED) exit(1);
463	>	lm[0] = 'z';
464	>	if (vm_release((char *)lm, 0x2000) < 0) exit(1);
465	>	vm_exit(); exit(0);
466		}
467	<	],
468	<	[ac_cv_can_map_lm=yes],
469	<	[ac_cv_can_map_lm=no]
467	>	], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
468	>	dnl When cross-compiling, do not assume anything.
469	>	ac_cv_can_map_lm="guessing no"
470		)
471		AC_LANG_RESTORE
472		]
473		)
474
475	<	dnl Check if extended signals are supported.
476	<	AC_CACHE_CHECK("whether your system supports extended signal handlers",
477	<	ac_cv_have_extended_signals, [
475	>	dnl Check signal handlers need to be reinstalled
476	>	AC_CACHE_CHECK("whether signal handlers need to be reinstalled",
477	>	ac_cv_signal_need_reinstall, [
478		AC_LANG_SAVE
479		AC_LANG_CPLUSPLUS
480		AC_TRY_RUN([
481	+	#include <stdlib.h>
482	+	#ifdef HAVE_UNISTD_H
483		#include <unistd.h>
484	+	#endif
485		#include <signal.h>
486	<	#include <fcntl.h>
487	<	#include <sys/mman.h>
488	<
489	<	static volatile caddr_t mem = 0;
490	<	static int zero_fd = -1;
486	>	static int handled_signal = 0;
487	>	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
488	>	int main(void) { /* returns 0 if signals need not to be reinstalled */
489	>	signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
490	>	exit(handled_signal == 2);
491	>	}
492	>	], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
493	>	dnl When cross-compiling, do not assume anything.
494	>	ac_cv_signal_need_reinstall="guessing yes"
495	>	)
496	>	AC_LANG_RESTORE
497	>	]
498	>	)
499	>	AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall")
500
501	<	static RETSIGTYPE segfault_handler(int, siginfo_t * sip, void *)
502	<	{ if ((caddr_t)(sip->si_addr) != mem) exit(1);
503	<	munmap(mem, getpagesize()); close(zero_fd); exit(0); }
504	<
505	<	int main()
506	<	{ if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1);
507	<	if ((mem = (caddr_t)mmap(0, getpagesize(), PROT_READ, MAP_PRIVATE, zero_fd, 0)) == (caddr_t)MAP_FAILED) exit(1);
508	<	struct sigaction sa; sa.sa_sigaction = segfault_handler; sa.sa_flags = 0;
509	<	sigaction(SIGSEGV, &sa, 0);
510	<	mem[0] = 0;
511	<	exit(1); // should not be reached
501	>	dnl Check if sigaction handlers need to be reinstalled
502	>	AC_CACHE_CHECK("whether sigaction handlers need to be reinstalled",
503	>	ac_cv_sigaction_need_reinstall, [
504	>	AC_LANG_SAVE
505	>	AC_LANG_CPLUSPLUS
506	>	AC_TRY_RUN([
507	>	#include <stdlib.h>
508	>	#ifdef HAVE_UNISTD_H
509	>	#include <unistd.h>
510	>	#endif
511	>	#include <signal.h>
512	>	static int handled_signal = 0;
513	>	RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
514	>	typedef RETSIGTYPE (*signal_handler)(int);
515	>	static signal_handler mysignal(int sig, signal_handler handler) {
516	>	struct sigaction old_sa;
517	>	struct sigaction new_sa;
518	>	new_sa.sa_handler = handler;
519	>	return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
520	>	}
521	>	int main(void) { /* returns 0 if signals need not to be reinstalled */
522	>	mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
523	>	exit(handled_signal == 2);
524		}
525	<	],
526	<	[ac_cv_have_extended_signals=yes],
527	<	[ac_cv_have_extended_signals=no]
525	>	], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
526	>	dnl When cross-compiling, do not assume anything.
527	>	ac_cv_sigaction_need_reinstall="guessing yes"
528	>	)
529	>	AC_LANG_RESTORE
530	>	]
531	>	)
532	>	AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall")
533	>
534	>	dnl Check if extended signals are supported.
535	>	AC_CACHE_CHECK("whether your system supports extended signal handlers",
536	>	ac_cv_have_extended_signals, [
537	>	AC_LANG_SAVE
538	>	AC_LANG_CPLUSPLUS
539	>	AC_TRY_RUN([
540	>	#define HAVE_SIGINFO_T 1
541	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
542	>	#include "vm_alloc.cpp"
543	>	#include "sigsegv.cpp"
544	>	], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
545	>	dnl When cross-compiling, do not assume anything.
546	>	ac_cv_have_extended_signals=no
547		)
548		AC_LANG_RESTORE
549		]
#	Line 348 | Line 552 | AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac
552
553		dnl Otherwise, check for subterfuges.
554		if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
555	<	case "$target_os" in
556	<	linux*)
557	<	if [[ "x$HAVE_I386" = "xyes" ]]; then
558	<	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
559	<	ac_cv_have_sigcontext_hack, [
560	<	AC_LANG_SAVE
561	<	AC_LANG_CPLUSPLUS
562	<	AC_TRY_RUN([
563	<	#include <unistd.h>
564	<	#include <signal.h>
565	<	#include <fcntl.h>
566	<	#include <sys/mman.h>
567	<
568	<	static volatile caddr_t mem = 0;
569	<	static int zero_fd = -1;
570	<
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, $ac_cv_have_sigcontext_hack)
387	<	fi
388	<	;;
389	<	esac
555	>	AC_CACHE_CHECK("whether we then have a subterfuge for your system",
556	>	ac_cv_have_sigcontext_hack, [
557	>	AC_LANG_SAVE
558	>	AC_LANG_CPLUSPLUS
559	>	AC_TRY_RUN([
560	>	#define HAVE_SIGCONTEXT_SUBTERFUGE 1
561	>	#define CONFIGURE_TEST_SIGSEGV_RECOVERY
562	>	#include "vm_alloc.cpp"
563	>	#include "sigsegv.cpp"
564	>	], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
565	>	dnl When cross-compiling, do not assume anything.
566	>	ac_cv_have_sigcontext_hack=no
567	>	)
568	>	AC_LANG_RESTORE
569	>	])
570	>	AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack")
571		fi
572
573		dnl Can we do Video on SEGV Signals ?
#	Line 396 | Line 577 | if [[ "$ac_cv_have_extended_signals" = "
577		fi
578
579		dnl Determine the addressing mode to use
580	<	ADDRESSING_MODE=""
581	<	AC_MSG_CHECKING([for the addressing mode to use])
582	<	for am in $ADDRESSING_TEST_ORDER; do
583	<	case $am in
584	<	real)
585	<	dnl Requires ability to mmap Low Memory globals.
586	<	if [[ "x$ac_cv_can_map_lm" = "xno" ]]; then
587	<	continue
588	<	fi
589	<	if [[ "x$ac_cv_c_bigendian" = "xyes" ]]; then
590	<	dnl Requires only VOSF if 16-bit vidmode enable
410	<	if [[ "x$WANT_16BIT_VIDMODE" = "xyes" ]]; then
411	<	if [[ "x$CAN_VOSF" = "xno" ]]; then
412	<	continue
413	<	fi
414	<	else
415	<	DEFINES="$DEFINES -DDISABLE_16BIT_VIDMODE"
580	>	if [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
581	>	ADDRESSING_MODE="real"
582	>	else
583	>	ADDRESSING_MODE=""
584	>	AC_MSG_CHECKING([for the addressing mode to use])
585	>	for am in $ADDRESSING_TEST_ORDER; do
586	>	case $am in
587	>	real)
588	>	dnl Requires ability to mmap() Low Memory globals
589	>	if [[ "x$ac_cv_can_map_lm" = "xno" ]]; then
590	>	continue
591		fi
592	<	else
418	<	dnl Requires VOSF
592	>	dnl Requires VOSF screen updates
593		if [[ "x$CAN_VOSF" = "xno" ]]; then
594		continue
595		fi
596	<	fi
597	<	dnl Real addressing will probably work
424	<	ADDRESSING_MODE="real"
425	<	WANT_VOSF=yes dnl we can use VOSF and we need it actually
426	<	DEFINES="$DEFINES -DREAL_ADDRESSING"
427	<	break
428	<	;;
429	<	direct)
430	<	dnl Requires VOSF
431	<	if [[ "x$CAN_VOSF" = "xyes" ]]; then
432	<	ADDRESSING_MODE="direct"
596	>	dnl Real addressing will probably work.
597	>	ADDRESSING_MODE="real"
598		WANT_VOSF=yes dnl we can use VOSF and we need it actually
599	<	DEFINES="$DEFINES -DDIRECT_ADDRESSING"
599	>	DEFINES="$DEFINES -DREAL_ADDRESSING"
600		break
601	<	fi
602	<	;;
603	<	banks)
604	<	dnl Default addressing mode
601	>	;;
602	>	direct)
603	>	dnl Requires VOSF screen updates
604	>	if [[ "x$CAN_VOSF" = "xyes" ]]; then
605	>	ADDRESSING_MODE="direct"
606	>	WANT_VOSF=yes dnl we can use VOSF and we need it actually
607	>	DEFINES="$DEFINES -DDIRECT_ADDRESSING"
608	>	break
609	>	fi
610	>	;;
611	>	banks)
612	>	dnl Default addressing mode
613	>	ADDRESSING_MODE="memory banks"
614	>	break
615	>	;;
616	>	*)
617	>	AC_MSG_ERROR([Internal configure.in script error for $am addressing mode])
618	>	esac
619	>	done
620	>	AC_MSG_RESULT($ADDRESSING_MODE)
621	>	if [[ "x$ADDRESSING_MODE" = "x" ]]; then
622	>	AC_MSG_WARN([Sorry, no suitable addressing mode in $ADDRESSING_TEST_ORDER])
623		ADDRESSING_MODE="memory banks"
624	<	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 $ADDRESSING_TEST_ORDER])
450	<	ADDRESSING_MODE="memory banks"
624	>	fi
625		fi
626
627	<	dnl Since real and direct addressing modes automatically activate VOSF,
628	<	dnl I put this test here.
455	<	if [[ "x$WANT_VOSF" = "xyes" ]]; then
456	<	if [[ "x$CAN_VOSF" = "xno" ]]; then
457	<	AC_MSG_WARN([Sorry, your system does not support Video on SEGV signals])
458	<	WANT_VOSF=no
459	<	else
627	>	dnl Enable VOSF screen updates with this feature is requested and feasible
628	>	if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then
629		AC_DEFINE(ENABLE_VOSF)
630	<	fi
630	>	else
631	>	WANT_VOSF=no
632		fi
633
634		dnl Check for GAS.
#	Line 480 | Line 650 | AC_EGREP_CPP(yes,
650		#endif
651		], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
652
653	+	dnl Check for GCC 3.0 or higher.
654	+	HAVE_GCC30=no
655	+	AC_MSG_CHECKING(for GCC 3.0 or higher)
656	+	AC_EGREP_CPP(yes,
657	+	[#if __GNUC__ >= 3
658	+	yes
659	+	#endif
660	+	], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
661	+
662		dnl Set "-fomit-frame-pointer" on i386 GCC 2.7 or higher.
663		if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
664		CFLAGS="$CFLAGS -fomit-frame-pointer"
665		CXXFLAGS="$CXXFLAGS -fomit-frame-pointer"
666		fi
667
668	+	dnl (gb) Do not merge constants since it breaks fpu/fpu_x86.cpp.
669	+	dnl As of 2001/08/02, this affects the following compilers:
670	+	dnl Official: probably gcc-3.1 (mainline CVS)
671	+	dnl Mandrake: gcc-2.96 >= 0.59mdk, gcc-3.0.1 >= 0.1mdk
672	+	dnl Red Hat : gcc-2.96 >= 89, gcc-3.0 >= 1
673	+	if [[ "x$HAVE_GCC27" = "xyes" ]]; then
674	+	SAVED_CXXFLAGS="$CXXFLAGS"
675	+	CXXFLAGS="$CXXFLAGS -fno-merge-constants"
676	+	AC_CACHE_CHECK([whether GCC supports constants merging], ac_cv_gcc_constants_merging, [
677	+	AC_LANG_SAVE
678	+	AC_LANG_CPLUSPLUS
679	+	AC_TRY_COMPILE([],[],[ac_cv_gcc_constants_merging=yes],[ac_cv_gcc_constants_merging=no])
680	+	AC_LANG_RESTORE
681	+	])
682	+	if [[ "x$ac_cv_gcc_constants_merging" != "xyes" ]]; then
683	+	CXXFLAGS="$SAVED_CXXFLAGS"
684	+	fi
685	+	fi
686	+
687		dnl Select appropriate CPU source and REGPARAM define.
688		ASM_OPTIMIZATIONS=none
491	–	WANT_NATIVE_M68K=no
689		CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
690	<	FPUSRCS="../uae_cpu/fpp.cpp"
691	<	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
690	>	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
691	>	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$OS_TYPE" != "xfreebsd" ]]; then
692		dnl i386 CPU
693		DEFINES="$DEFINES -DREGPARAM=\"__attribute__((regparm(3)))\""
694		if [[ "x$HAVE_GAS" = "xyes" ]]; then
695		ASM_OPTIMIZATIONS=i386
696	<	DEFINES="$DEFINES -DX86_ASSEMBLY -DOPTFLAGS"
697	<	CPUSRCS="../uae_cpu/compiler.cpp cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
696	>	DEFINES="$DEFINES -DX86_ASSEMBLY -DUNALIGNED_PROFITABLE -DOPTIMIZED_FLAGS"
697	>	CPUSRCS="cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
698		FPUSRCS="../uae_cpu/fpu_x86.cpp"
699		fi
700		elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
#	Line 509 | Line 706 | elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HA
706		AC_MSG_RESULT($SPARC_TYPE)
707		case "$SPARC_TYPE" in
708		SPARC_V8)
709	<	ASM_OPTIMIZATIONS="SPARC V8 architecture"
710	<	DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY" dnl -DOPTFLAGS"
709	>	ASM_OPTIMIZATIONS="SPARC V8 architecture"
710	>	DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
711		CFLAGS="$CFLAGS -Wa,-Av8"
712		CXXFLAGS="$CXXFLAGS -Wa,-Av8"
713		;;
714		SPARC_V9)
715	<	ASM_OPTIMIZATIONS="SPARC V9 architecture"
716	<	DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY" dnl -DOPTFLAGS"
715	>	ASM_OPTIMIZATIONS="SPARC V9 architecture"
716	>	DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
717		CFLAGS="$CFLAGS -Wa,-Av9"
718		CXXFLAGS="$CXXFLAGS -Wa,-Av9"
719		;;
720		esac
721		;;
722		esac
723	<	elif [[ "x$HAVE_M68K" = "xyes" -a "x$SUPPORTS_NATIVE_M68K" = "xyes" ]]; then
723	>	elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
724		dnl Native m68k, no emulation
725	<	CPUSRCS=""
726	<	AC_DEFINE(ENABLE_NATIVE_M68K)
530	<	WANT_NATIVE_M68K=yes
725	>	CPUINCLUDES="-I../native_cpu"
726	>	CPUSRCS="asm_support.s"
727		fi
728
729	+	dnl Select appropriate FPU source.
730	+	dnl 1. Optimized X86 assembly core if target is i386 architecture
731	+	SAVED_DEFINES=$DEFINES
732	+	if [[ "x$FPE_CORE" = "xdefault" ]]; then
733	+	if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
734	+	DEFINES="$DEFINES -DFPU_X86"
735	+	FPE_CORE_STR="i386 optimized core"
736	+	FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
737	+	FPE_CORE="i386"
738	+	else
739	+	FPE_CORE="uae"
740	+	fi
741	+	fi
742	+
743	+	dnl 2. JIT-FPU only supports IEEE-based implementation.
744	+	if [[ "x$WANT_JIT_FPU" = "xyes" -a "x$FPE_CORE" != "xieee" ]]; then
745	+	AC_MSG_WARN([Sorry, JIT-FPU supports only the "ieee" FPE implementation])
746	+	FPE_CORE="ieee"
747	+	dnl Restore previous variables. FPE_CORE_STR and FPUSRCS are overwritten
748	+	DEFINES=$SAVED_DEFINES
749	+	fi
750	+
751	+	dnl 3. Choose either IEEE-based implementation or the old UAE core
752	+	if [[ "x$FPE_CORE" = "xieee" ]]; then
753	+	AC_CHECK_HEADERS(fenv.h)
754	+	AC_CHECK_FUNCS(feclearexcept fegetexceptflag feraiseexcept fesetexceptflag fetestexcept)
755	+	AC_CHECK_FUNCS(fegetround fesetround)
756	+	DEFINES="$DEFINES -DFPU_IEEE"
757	+	FPE_CORE_STR="ieee-based fpu core"
758	+	FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
759	+	elif [[ "x$FPE_CORE" = "xuae" ]]; then
760	+	DEFINES="$DEFINES -DFPU_UAE"
761	+	FPE_CORE_STR="original uae core"
762	+	FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
763	+	fi
764	+
765	+	dnl Check for certain math functions
766	+	AC_CHECK_FUNCS(atanh)
767	+	AC_CHECK_FUNCS(isnan isinf)             dnl C99
768	+	AC_CHECK_FUNCS(isnanl isinfl)   dnl IEEE ?
769	+
770		dnl UAE CPU sources for all non-m68k-native architectures.
771		if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
772		CPUINCLUDES="-I../uae_cpu"
773		CPUSRCS="../uae_cpu/basilisk_glue.cpp ../uae_cpu/memory.cpp ../uae_cpu/newcpu.cpp ../uae_cpu/readcpu.cpp $FPUSRCS cpustbl.cpp cpudefs.cpp $CPUSRCS"
537	–	else
538	–	CPUINCLUDES="-I../native_cpu"
539	–	CPUSRCS="asm_support.s"
774		fi
775
776		dnl Remove the "-g" option if set for GCC.
777		if [[ "x$HAVE_GCC27" = "xyes" ]]; then
778	<	dnl gb-- Probably not the cleanest way to take
779	<	CFLAGS=`echo $CFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
780	<	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/ -g / /;s/^-g / /;s/ -g$/ /;s/^-g$//'`
778	>	CFLAGS=`echo $CFLAGS | sed -e 's/-g//g'`
779	>	CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g//g'`
780	>	fi
781	>
782	>	dnl Or if we have -Ofast
783	>	if [[ "x$HAVE_OFAST" = "xyes" ]]; then
784	>	CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -Ofast"
785	>	CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -Ofast"
786	>	CXXFLAGS="-LANG:std $CXXFLAGS"
787	>	LDFLAGS="$LDFLAGS -Ofast"
788		fi
789
790		dnl Generate Makefile.
#	Line 565 | Line 806 | echo ESD sound support ................
806		echo GTK user interface ............... : $WANT_GTK
807		echo mon debugger support ............. : $WANT_MON
808		echo Running m68k code natively ....... : $WANT_NATIVE_M68K
809	+	echo Floating-Point emulation core .... : $FPE_CORE_STR
810		echo Assembly optimizations ........... : $ASM_OPTIMIZATIONS
811		echo Addressing mode .................. : $ADDRESSING_MODE
812		echo

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