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configure.in
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configure.in
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dnl Process this file with autoconf to produce a configure script.
dnl Written in 2002 by Christian Bauer et al.
AC_INIT(main_unix.cpp)
AC_PREREQ(2.12)
AC_CONFIG_HEADER(config.h)
dnl These defines are necessary to get 64-bit file size support.
AC_DEFINE(_USE_LARGEFILE_SOURCE, 1, [Get more functions for correct standard I/O])
AC_DEFINE(_FILE_OFFSET_BITS, 64, [Get 64-bit file size support])
dnl Options.
AC_ARG_ENABLE(xf86-dga, [ --enable-xf86-dga use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
AC_ARG_ENABLE(xf86-vidmode, [ --enable-xf86-vidmode use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
AC_ARG_ENABLE(fbdev-dga, [ --enable-fbdev-dga use direct frame buffer access via /dev/fb [default=yes]], [WANT_FBDEV_DGA=$enableval], [WANT_FBDEV_DGA=yes])
AC_ARG_ENABLE(vosf, [ --enable-vosf enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
dnl FPU emulation core.
AC_ARG_ENABLE(fpe,
[ --enable-fpe=which specify which fpu emulator to use [default=opt]],
[ case "$enableval" in
default) FPE_CORE="default";; dnl fpu_x86.cpp if i386 architecture, fpu_uae.cpp otherwise
uae) FPE_CORE="uae";;
*) AC_MSG_ERROR([--enable-fpe takes only one of the following values: default, uae]);;
esac
],
[ FPE_CORE="default"
])
dnl Addressing modes.
AC_ARG_ENABLE(addressing,
[ --enable-addressing=AM specify the addressing mode to use [default=fastest]],
[ case "$enableval" in
real) ADDRESSING_TEST_ORDER="real";;
direct) ADDRESSING_TEST_ORDER="direct";;
banks) ADDRESSING_TEST_ORDER="banks";;
fastest)ADDRESSING_TEST_ORDER="direct banks";;
*) AC_MSG_ERROR([--enable-addressing takes only one of the following values: fastest, real, direct, banks]);;
esac
],
[ ADDRESSING_TEST_ORDER="direct banks"
])
dnl External packages.
AC_ARG_WITH(esd, [ --with-esd support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
AC_ARG_WITH(gtk, [ --with-gtk use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes])
AC_ARG_WITH(mon, [ --with-mon use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
dnl Canonical system information.
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
dnl Target OS type (target is host if not cross-compiling).
case "$target_os" in
linux*) OS_TYPE=linux;;
netbsd*) OS_TYPE=netbsd;;
freebsd*) OS_TYPE=freebsd;;
solaris*) OS_TYPE=solaris;;
darwin*) OS_TYPE=darwin;;
*) OS_TYPE=`echo $target_os | sed -e 's/-/_/g' | sed -e 's/\./_/g'`;;
esac
DEFINES="$DEFINES -DOS_$OS_TYPE"
dnl Target CPU type.
HAVE_I386=no
HAVE_M68K=no
HAVE_SPARC=no
HAVE_POWERPC=no
case "$target_cpu" in
i386* | i486* | i586* | i686* | i786* ) CPU_TYPE=i386 HAVE_I386=yes;;
m68k* ) CPU_TYPE=m68k HAVE_M68K=yes;;
sparc* ) CPU_TYPE=sparc HAVE_SPARC=yes;;
powerpc* ) CPU_TYPE=powerpc HAVE_POWERPC=yes;;
*) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/g'`;;
esac
DEFINES="$DEFINES -DCPU_$CPU_TYPE"
dnl Checks for programs.
AC_PROG_CC
AC_PROG_CC_C_O
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_MAKE_SET
AC_PROG_INSTALL
dnl We use mon if possible.
MONSRCS=
if [[ "x$WANT_MON" = "xyes" ]]; then
AC_MSG_CHECKING(for mon)
mon_srcdir=../../../mon/src
if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
AC_MSG_RESULT(yes)
AC_DEFINE(ENABLE_MON)
MONSRCS="$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 $mon_srcdir/disass/m68k-opc.c"
CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
AC_CHECK_LIB(readline, readline)
AC_CHECK_LIB(termcap, tputs)
AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
else
AC_MSG_RESULT(no)
AC_MSG_WARN([Could not find mon, ignoring --with-mon.])
WANT_MON=no
fi
fi
dnl Checks for libraries.
AC_CHECK_LIB(posix4, sem_init)
AC_CHECK_LIB(rt, timer_create)
dnl We need X11.
AC_PATH_XTRA
if [[ "x$no_x" = "xyes" ]]; then
AC_MSG_ERROR([You need X11 to run Basilisk II.])
fi
CFLAGS="$CFLAGS $X_CFLAGS"
CXXFLAGS="$CXXFLAGS $X_CFLAGS"
LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS"
dnl We want pthreads. Try libpthread first, then libc_r (FreeBSD), then PTL.
HAVE_PTHREADS=yes
AC_CHECK_LIB(pthread, pthread_create, , [
AC_CHECK_LIB(c_r, pthread_create, , [
AC_CHECK_LIB(PTL, pthread_create, , [
HAVE_PTHREADS=no
])
])
])
if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
AC_DEFINE(HAVE_PTHREADS)
fi
AC_CHECK_FUNCS(pthread_cancel)
dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
SEMSRC=
AC_CHECK_FUNCS(sem_init, , [
if test "x$HAVE_PTHREADS" = "xyes"; then
SEMSRC=posix_sem.cpp
fi
])
dnl We use DGA (XFree86 or fbdev) if possible.
if [[ "x$WANT_XF86_DGA" = "xyes" ]]; then
AC_CHECK_LIB(Xxf86dga, XF86DGAQueryExtension, [
AC_DEFINE(ENABLE_XF86_DGA)
LIBS="$LIBS -lXxf86dga"
if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
AC_MSG_WARN([Cannot have both --enable-xf86-dga and --enable-fbdev-dga, ignoring --enable-fbdev-dga.])
WANT_FBDEV_DGA=no
fi
], [
AC_MSG_WARN([Could not find XFree86 DGA extension, ignoring --enable-xf86-dga.])
WANT_XF86_DGA=no
])
fi
if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
AC_DEFINE(ENABLE_FBDEV_DGA)
fi
dnl We use XFree86 VidMode if possible.
if [[ "x$WANT_XF86_VIDMODE" = "xyes" ]]; then
AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryExtension, [
AC_DEFINE(ENABLE_XF86_VIDMODE)
LIBS="$LIBS -lXxf86vm"
], [
AC_MSG_WARN([Could not find XFree86 VidMode extension, ignoring --enable-xf86-vidmode.])
WANT_XF86_VIDMODE=no
])
fi
dnl We use GTK+ if possible.
UISRCS=../dummy/prefs_editor_dummy.cpp
if [[ "x$WANT_GTK" = "xyes" ]]; then
AM_PATH_GTK(1.2.0, [
AC_DEFINE(ENABLE_GTK)
CFLAGS="$CFLAGS $GTK_CFLAGS"
CXXFLAGS="$CXXFLAGS $GTK_CFLAGS"
LIBS="$LIBS $GTK_LIBS"
UISRCS=prefs_editor_gtk.cpp
], [
AC_MSG_WARN([Could not find GTK+, disabling user interface.])
WANT_GTK=no
])
fi
dnl We use ESD if possible.
if [[ "x$WANT_ESD" = "xyes" ]]; then
AM_PATH_ESD(0.2.8, [
AC_DEFINE(ENABLE_ESD)
CFLAGS="$CFLAGS $ESD_CFLAGS"
CXXFLAGS="$CXXFLAGS $ESD_CFLAGS"
LIBS="$LIBS $ESD_LIBS"
], [
AC_MSG_WARN([Could not find ESD, disabling ESD support.])
WANT_ESD=no
])
fi
dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h)
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_BIGENDIAN
AC_C_CONST
AC_C_INLINE
AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(long long, 8)
AC_CHECK_SIZEOF(void *, 4)
AC_TYPE_OFF_T
AC_CHECK_TYPE(loff_t, off_t)
TYPE_SOCKLEN_T
AC_TYPE_SIZE_T
AC_TYPE_SIGNAL
AC_HEADER_TIME
AC_STRUCT_TM
dnl Checks for library functions.
AC_CHECK_FUNCS(strdup cfmakeraw)
AC_CHECK_FUNCS(clock_gettime timer_create)
AC_CHECK_FUNCS(sigaction signal)
AC_CHECK_FUNCS(mmap mprotect munmap)
AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
dnl Darwin seems to define mach_task_self() instead of task_self().
AC_CHECK_FUNCS(mach_task_self task_self)
dnl Select system-dependant source files.
SERIALSRC=serial_unix.cpp
ETHERSRC=../dummy/ether_dummy.cpp
SCSISRC=../dummy/scsi_dummy.cpp
AUDIOSRC=../dummy/audio_dummy.cpp
EXTRASYSSRCS=
CAN_NATIVE_M68K=no
case "$target_os" in
linux*)
ETHERSRC=ether_unix.cpp
AUDIOSRC=audio_oss_esd.cpp
SCSISRC=Linux/scsi_linux.cpp
;;
freebsd*)
ETHERSRC=ether_unix.cpp
AUDIOSRC=audio_oss_esd.cpp
DEFINES="$DEFINES -DBSD_COMP"
CXXFLAGS="$CXXFLAGS -fpermissive"
dnl Check for the CAM library
AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
else
dnl Check for the sys kernel includes
AC_CHECK_HEADER(camlib.h)
if [[ "x$ac_cv_header_camlib_h" = "xno" ]]; then
dnl In this case I should fix this thing including a "patch"
dnl to access directly to the functions in the kernel :) --Orlando
AC_MSG_WARN([Cannot find includes for CAM library, disabling SCSI support.])
else
SCSISRC=FreeBSD/scsi_freebsd.cpp
LIBS="$LIBS -lcam"
DEFINES="$DEFINES -DCAM"
fi
fi
;;
netbsd*)
CAN_NATIVE_M68K=yes
;;
solaris*)
AUDIOSRC=Solaris/audio_solaris.cpp
DEFINES="$DEFINES -DBSD_COMP -D_POSIX_PTHREAD_SEMANTICS"
;;
irix*)
ETHERSRC=ether_unix.cpp
AUDIOSRC=Irix/audio_irix.cpp
EXTRASYSSRCS=Irix/unaligned.c
dnl IRIX headers work fine, but somehow don't define or use "STDC_HEADERS"
DEFINES="$DEFINES -DCRTSCTS=CNEW_RTSCTS -DB230400=B115200 -DSTDC_HEADERS"
LIBS="$LIBS -laudio"
WANT_ESD=no
dnl Check if our compiler supports -Ofast (MIPSPro)
HAVE_OFAST=no
ocflags="$CFLAGS"
CFLAGS=`echo $CFLAGS | sed -e 's/ -g / -Ofast /;s/^-g /-Ofast /;s/-g$/ -Ofast/;s/^-g$/-Ofast/'`
AC_MSG_CHECKING(if "-Ofast" works)
dnl Do a test compile of an empty function
AC_TRY_COMPILE(,, [AC_MSG_RESULT(yes); HAVE_OFAST=yes], AC_MSG_RESULT(no))
CFLAGS="$ocflags"
;;
esac
dnl Use 68k CPU natively?
WANT_NATIVE_M68K=no
if [[ "x$HAVE_M68K" = "xyes" -a "x$CAN_NATIVE_M68K" = "xyes" ]]; then
AC_DEFINE(ENABLE_NATIVE_M68K)
WANT_NATIVE_M68K=yes
fi
if [[ "x$HAVE_PTHREADS" = "xno" ]]; then
dnl Serial, ethernet and audio support needs pthreads
AC_MSG_WARN([You don't have pthreads, disabling serial, ethernet and audio support.])
SERIALSRC=../dummy/serial_dummy.cpp
ETHERSRC=../dummy/ether_dummy.cpp
AUDIOSRC=../dummy/audio_dummy.cpp
fi
SYSSRCS="$SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
dnl Define a macro that translates a yesno-variable into a C macro definition
dnl to be put into the config.h file
dnl $1 -- the macro to define
dnl $2 -- the value to translate
AC_DEFUN(AC_TRANSLATE_DEFINE, [
if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
AC_DEFINE($1)
fi
])
dnl Various checks if the system supports vm_allocate() and the like functions.
have_mach_vm=no
if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
"x$ac_cv_func_vm_protect" = "xyes" ]]; then
have_mach_vm=yes
fi
AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
dnl Check that vm_allocate(), vm_protect() work
if [[ "x$have_mach_vm" = "xyes" ]]; then
AC_CACHE_CHECK("whether vm_protect works",
ac_cv_vm_protect_works, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_cv_vm_protect_works=yes
dnl First the tests that should segfault
for test_def in NONE_READ NONE_WRITE READ_WRITE; do
AC_TRY_RUN([
#define CONFIGURE_TEST_VM_MAP
#define TEST_VM_PROT_$test_def
#include "vm_alloc.cpp"
], ac_cv_vm_protect_works=no, rm -f core,
dnl When cross-compiling, do not assume anything
ac_cv_vm_protect_works="guessing no"
)
done
AC_TRY_RUN([
#define CONFIGURE_TEST_VM_MAP
#define TEST_VM_PROT_RDWR_WRITE
#include "vm_alloc.cpp"
], , ac_cv_vm_protect_works=no,
dnl When cross-compiling, do not assume anything
ac_cv_vm_protect_works="guessing no"
)
AC_LANG_RESTORE
]
)
dnl Remove support for vm_allocate() if vm_protect() does not work
if [[ "x$have_mach_vm" = "xyes" ]]; then
case $ac_cv_vm_protect_works in
*yes) have_mach_vm=yes;;
*no) have_mach_vm=no;;
esac
fi
AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm")
fi dnl HAVE_MACH_VM
dnl Various checks if the system supports mmap() and the like functions.
dnl ... and Mach memory allocators are not supported
have_mmap_vm=no
if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
"x$ac_cv_func_mprotect" = "xyes" ]]; then
if [[ "x$have_mach_vm" = "xno" ]]; then
have_mmap_vm=yes
fi
fi
AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm")
dnl Check that mmap() and associated functions work.
if [[ "x$have_mmap_vm" = "xyes" ]]; then
dnl Check if we have a working anonymous mmap()
AC_CACHE_CHECK("whether mmap supports MAP_ANON",
ac_cv_mmap_anon, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_MMAP_ANON
#define CONFIGURE_TEST_VM_MAP
#define TEST_VM_MMAP_ANON
#include "vm_alloc.cpp"
], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
dnl When cross-compiling, do not assume anything.
ac_cv_mmap_anon="guessing no"
)
AC_LANG_RESTORE
]
)
AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon")
AC_CACHE_CHECK("whether mmap supports MAP_ANONYMOUS",
ac_cv_mmap_anonymous, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_MMAP_ANONYMOUS
#define CONFIGURE_TEST_VM_MAP
#define TEST_VM_MMAP_ANON
#include "vm_alloc.cpp"
], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
dnl When cross-compiling, do not assume anything.
ac_cv_mmap_anonymous="guessing no"
)
AC_LANG_RESTORE
]
)
AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous")
AC_CACHE_CHECK("whether mprotect works",
ac_cv_mprotect_works, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_cv_mprotect_works=yes
dnl First the tests that should segfault
for test_def in NONE_READ NONE_WRITE READ_WRITE; do
AC_TRY_RUN([
#define CONFIGURE_TEST_VM_MAP
#define TEST_VM_PROT_$test_def
#include "vm_alloc.cpp"
], ac_cv_mprotect_works=no, rm -f core,
dnl When cross-compiling, do not assume anything
ac_cv_mprotect_works="guessing no"
)
done
AC_TRY_RUN([
#define CONFIGURE_TEST_VM_MAP
#define TEST_VM_PROT_RDWR_WRITE
#include "vm_alloc.cpp"
], , ac_cv_mprotect_works=no,
dnl When cross-compiling, do not assume anything
ac_cv_mprotect_works="guessing no"
)
AC_LANG_RESTORE
]
)
dnl Remove support for mmap() if mprotect() does not work
if [[ "x$have_mmap_vm" = "xyes" ]]; then
case $ac_cv_mprotect_works in
*yes) have_mmap_vm=yes;;
*no) have_mmap_vm=no;;
esac
fi
AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm)
fi dnl HAVE_MMAP_VM
dnl Check if we can mmap 0x2000 bytes from 0x0000
AC_CACHE_CHECK("whether we can map Low Memory area 0x0000-0x2000",
ac_cv_can_map_lm, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#include "vm_alloc.cpp"
int main(void) { /* returns 0 if we could map the lowmem globals */
volatile char * lm;
if (vm_init() < 0) exit(1);
if ((lm = (volatile char *)vm_acquire_fixed(0, 0x2000)) == VM_MAP_FAILED) exit(1);
lm[0] = 'z';
if (vm_release((char *)lm, 0x2000) < 0) exit(1);
vm_exit(); exit(0);
}
], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
dnl When cross-compiling, do not assume anything.
ac_cv_can_map_lm="guessing no"
)
AC_LANG_RESTORE
]
)
dnl Check signal handlers need to be reinstalled
AC_CACHE_CHECK("whether signal handlers need to be reinstalled",
ac_cv_signal_need_reinstall, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <signal.h>
static int handled_signal = 0;
RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
int main(void) { /* returns 0 if signals need not to be reinstalled */
signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
exit(handled_signal == 2);
}
], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
dnl When cross-compiling, do not assume anything.
ac_cv_signal_need_reinstall="guessing yes"
)
AC_LANG_RESTORE
]
)
AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall")
dnl Check if sigaction handlers need to be reinstalled
AC_CACHE_CHECK("whether sigaction handlers need to be reinstalled",
ac_cv_sigaction_need_reinstall, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <signal.h>
static int handled_signal = 0;
RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
typedef RETSIGTYPE (*signal_handler)(int);
static signal_handler mysignal(int sig, signal_handler handler) {
struct sigaction old_sa;
struct sigaction new_sa;
new_sa.sa_handler = handler;
return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
}
int main(void) { /* returns 0 if signals need not to be reinstalled */
mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
exit(handled_signal == 2);
}
], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
dnl When cross-compiling, do not assume anything.
ac_cv_sigaction_need_reinstall="guessing yes"
)
AC_LANG_RESTORE
]
)
AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall")
dnl Check if extended signals are supported.
AC_CACHE_CHECK("whether your system supports extended signal handlers",
ac_cv_have_extended_signals, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_SIGINFO_T 1
#define CONFIGURE_TEST_SIGSEGV_RECOVERY
#include "vm_alloc.cpp"
#include "sigsegv.cpp"
], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
dnl When cross-compiling, do not assume anything.
ac_cv_have_extended_signals=no
)
AC_LANG_RESTORE
]
)
AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals")
dnl Otherwise, check for subterfuges.
if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
AC_CACHE_CHECK("whether we then have a subterfuge for your system",
ac_cv_have_sigcontext_hack, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_SIGCONTEXT_SUBTERFUGE 1
#define CONFIGURE_TEST_SIGSEGV_RECOVERY
#include "vm_alloc.cpp"
#include "sigsegv.cpp"
], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
dnl When cross-compiling, do not assume anything.
ac_cv_have_sigcontext_hack=no
)
AC_LANG_RESTORE
])
AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack")
fi
dnl Can we do Video on SEGV Signals ?
CAN_VOSF=no
if [[ "$ac_cv_have_extended_signals" = "yes" -o "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
CAN_VOSF=yes
fi
dnl Determine the addressing mode to use
if [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
ADDRESSING_MODE="real"
else
ADDRESSING_MODE=""
AC_MSG_CHECKING([for the addressing mode to use])
for am in $ADDRESSING_TEST_ORDER; do
case $am in
real)
dnl Requires ability to mmap() Low Memory globals
if [[ "x$ac_cv_can_map_lm" = "xno" ]]; then
continue
fi
dnl Requires VOSF screen updates
if [[ "x$CAN_VOSF" = "xno" ]]; then
continue
fi
dnl Real addressing will probably work.
ADDRESSING_MODE="real"
WANT_VOSF=yes dnl we can use VOSF and we need it actually
DEFINES="$DEFINES -DREAL_ADDRESSING"
break
;;
direct)
dnl Requires VOSF screen updates
if [[ "x$CAN_VOSF" = "xyes" ]]; then
ADDRESSING_MODE="direct"
WANT_VOSF=yes dnl we can use VOSF and we need it actually
DEFINES="$DEFINES -DDIRECT_ADDRESSING"
break
fi
;;
banks)
dnl Default addressing mode
ADDRESSING_MODE="memory banks"
break
;;
*)
AC_MSG_ERROR([Internal configure.in script error for $am addressing mode])
esac
done
AC_MSG_RESULT($ADDRESSING_MODE)
if [[ "x$ADDRESSING_MODE" = "x" ]]; then
AC_MSG_WARN([Sorry, no suitable addressing mode in $ADDRESSING_TEST_ORDER])
ADDRESSING_MODE="memory banks"
fi
fi
dnl Enable VOSF screen updates with this feature is requested and feasible
if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then
AC_DEFINE(ENABLE_VOSF)
else
WANT_VOSF=no
fi
dnl Check for GAS.
HAVE_GAS=no
AC_MSG_CHECKING(for GAS .p2align feature)
cat >conftest.S << EOF
.text
.p2align 5
EOF
if $CC conftest.S -c -o conftest.o >/dev/null 2>&1 ; then HAVE_GAS=yes; fi
AC_MSG_RESULT($HAVE_GAS)
dnl Check for GCC 2.7 or higher.
HAVE_GCC27=no
AC_MSG_CHECKING(for GCC 2.7 or higher)
AC_EGREP_CPP(yes,
[#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
yes
#endif
], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
dnl Check for GCC 3.0 or higher.
HAVE_GCC30=no
AC_MSG_CHECKING(for GCC 3.0 or higher)
AC_EGREP_CPP(yes,
[#if __GNUC__ >= 3
yes
#endif
], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
dnl Set "-fomit-frame-pointer" on i386 GCC 2.7 or higher.
if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
CFLAGS="$CFLAGS -fomit-frame-pointer"
CXXFLAGS="$CXXFLAGS -fomit-frame-pointer"
fi
dnl (gb) Do not merge constants since it breaks fpu/fpu_x86.cpp.
dnl As of 2001/08/02, this affects the following compilers:
dnl Official: probably gcc-3.1 (mainline CVS)
dnl Mandrake: gcc-2.96 >= 0.59mdk, gcc-3.0.1 >= 0.1mdk
dnl Red Hat : gcc-2.96 >= 89, gcc-3.0 >= 1
if [[ "x$HAVE_GCC27" = "xyes" ]]; then
SAVED_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS -fno-merge-constants"
AC_CACHE_CHECK([whether GCC supports constants merging], ac_cv_gcc_constants_merging, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE([],[],[ac_cv_gcc_constants_merging=yes],[ac_cv_gcc_constants_merging=no])
AC_LANG_RESTORE
])
if [[ "x$ac_cv_gcc_constants_merging" != "xyes" ]]; then
CXXFLAGS="$SAVED_CXXFLAGS"
fi
fi
dnl Select appropriate CPU source and REGPARAM define.
ASM_OPTIMIZATIONS=none
CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$OS_TYPE" != "xfreebsd" ]]; then
dnl i386 CPU
DEFINES="$DEFINES -DREGPARAM=\"__attribute__((regparm(3)))\""
if [[ "x$HAVE_GAS" = "xyes" ]]; then
ASM_OPTIMIZATIONS=i386
DEFINES="$DEFINES -DX86_ASSEMBLY -DUNALIGNED_PROFITABLE -DOPTIMIZED_FLAGS"
CPUSRCS="cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
FPUSRCS="../uae_cpu/fpu_x86.cpp"
fi
elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
dnl SPARC CPU
case "$target_os" in
solaris*)
AC_MSG_CHECKING(SPARC CPU architecture)
SPARC_TYPE=`Solaris/which_sparc`
AC_MSG_RESULT($SPARC_TYPE)
case "$SPARC_TYPE" in
SPARC_V8)
ASM_OPTIMIZATIONS="SPARC V8 architecture"
DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
CFLAGS="$CFLAGS -Wa,-Av8"
CXXFLAGS="$CXXFLAGS -Wa,-Av8"
;;
SPARC_V9)
ASM_OPTIMIZATIONS="SPARC V9 architecture"
DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
CFLAGS="$CFLAGS -Wa,-Av9"
CXXFLAGS="$CXXFLAGS -Wa,-Av9"
;;
esac
;;
esac
elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
dnl Native m68k, no emulation
CPUINCLUDES="-I../native_cpu"
CPUSRCS="asm_support.s"
fi
dnl Select appropriate FPU source.
dnl 1. Optimized X86 assembly core if target is i386 architecture
SAVED_DEFINES=$DEFINES
if [[ "x$FPE_CORE" = "xdefault" ]]; then
if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
DEFINES="$DEFINES -DFPU_X86"
FPE_CORE_STR="i386 optimized core"
FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
FPE_CORE="i386"
else
FPE_CORE="uae"
fi
fi
dnl 2. JIT-FPU only supports IEEE-based implementation.
if [[ "x$WANT_JIT_FPU" = "xyes" -a "x$FPE_CORE" != "xieee" ]]; then
AC_MSG_WARN([Sorry, JIT-FPU supports only the "ieee" FPE implementation])
FPE_CORE="ieee"
dnl Restore previous variables. FPE_CORE_STR and FPUSRCS are overwritten
DEFINES=$SAVED_DEFINES
fi
dnl 3. Choose either IEEE-based implementation or the old UAE core
if [[ "x$FPE_CORE" = "xieee" ]]; then
AC_CHECK_HEADERS(fenv.h)
AC_CHECK_FUNCS(feclearexcept fegetexceptflag feraiseexcept fesetexceptflag fetestexcept)
AC_CHECK_FUNCS(fegetround fesetround)
DEFINES="$DEFINES -DFPU_IEEE"
FPE_CORE_STR="ieee-based fpu core"
FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
elif [[ "x$FPE_CORE" = "xuae" ]]; then
DEFINES="$DEFINES -DFPU_UAE"
FPE_CORE_STR="original uae core"
FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
fi
dnl Check for certain math functions
AC_CHECK_FUNCS(atanh)
AC_CHECK_FUNCS(isnan isinf) dnl C99
AC_CHECK_FUNCS(isnanl isinfl) dnl IEEE ?
dnl UAE CPU sources for all non-m68k-native architectures.
if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
CPUINCLUDES="-I../uae_cpu"
CPUSRCS="../uae_cpu/basilisk_glue.cpp ../uae_cpu/memory.cpp ../uae_cpu/newcpu.cpp ../uae_cpu/readcpu.cpp $FPUSRCS cpustbl.cpp cpudefs.cpp $CPUSRCS"
fi
dnl Remove the "-g" option if set for GCC.
if [[ "x$HAVE_GCC27" = "xyes" ]]; then
CFLAGS=`echo $CFLAGS | sed -e 's/-g//g'`
CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g//g'`
fi
dnl Or if we have -Ofast
if [[ "x$HAVE_OFAST" = "xyes" ]]; then
CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -Ofast"
CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -Ofast"
CXXFLAGS="-LANG:std $CXXFLAGS"
LDFLAGS="$LDFLAGS -Ofast"
fi
dnl Generate Makefile.
AC_SUBST(DEFINES)
AC_SUBST(SYSSRCS)
AC_SUBST(CPUINCLUDES)
AC_SUBST(CPUSRCS)
AC_OUTPUT(Makefile)
dnl Print summary.
echo
echo Basilisk II configuration summary:
echo
echo XFree86 DGA support .............. : $WANT_XF86_DGA
echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
echo fbdev DGA support ................ : $WANT_FBDEV_DGA
echo Enable video on SEGV signals ..... : $WANT_VOSF
echo ESD sound support ................ : $WANT_ESD
echo GTK user interface ............... : $WANT_GTK
echo mon debugger support ............. : $WANT_MON
echo Running m68k code natively ....... : $WANT_NATIVE_M68K
echo Floating-Point emulation core .... : $FPE_CORE_STR
echo Assembly optimizations ........... : $ASM_OPTIMIZATIONS
echo Addressing mode .................. : $ADDRESSING_MODE
echo
echo "Configuration done. Now type \"make\" (or \"gmake\")."