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macemu/SheepShaver/src/Unix/configure.ac

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dnl Process this file with autoconf to produce a configure script.
dnl Written in 2002 by Christian Bauer
AC_INIT([SheepShaver], 2.4, [Christian.Bauer@uni-mainz.de], SheepShaver)
AC_CONFIG_SRCDIR(main_unix.cpp)
AC_PREREQ(2.52)
AC_CONFIG_HEADER(config.h)
AH_TOP(
#ifndef CONFIG_H
#define CONFIG_H
)
AH_BOTTOM(
#endif /* CONFIG_H */
)
dnl Canonical system information.
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
dnl Some systems do not put corefiles in the currect directory, avoid saving
dnl cores for the configure tests since some are intended to dump core.
ulimit -c 0
dnl Invite Cygwin users to build within the Windows/ directory
case $target_os in
*cygwin* | *mingw32*)
AC_MSG_ERROR([You can only build the Windows version from its directory, Cygwin/X11 is not supported.])
;;
esac
dnl Options.
AC_ARG_ENABLE(jit, [ --enable-jit enable JIT compiler [default=yes]], [WANT_JIT=$enableval], [WANT_JIT=yes])
AC_ARG_ENABLE(ppc-emulator, [ --enable-ppc-emulator use the selected PowerPC emulator [default=auto]], [WANT_EMULATED_PPC=$enableval], [WANT_EMULATED_PPC=auto])
AC_ARG_ENABLE(fbdev-dga, [ --enable-fbdev-dga use direct frame buffer access via /dev/fb0 [default=yes]], [WANT_FBDEV_DGA=$enableval], [WANT_FBDEV_DGA=yes])
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(vosf, [ --enable-vosf enable video on SEGV signals [default=no]], [WANT_VOSF=$enableval], [WANT_VOSF=no])
AC_ARG_ENABLE(standalone-gui,[ --enable-standalone-gui enable a standalone GUI prefs editor [default=no]], [WANT_STANDALONE_GUI=$enableval], [WANT_STANDALONE_GUI=no])
AC_ARG_WITH(esd, [ --with-esd support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
AC_ARG_WITH(gtk, [ --with-gtk use GTK user interface [default=yes]],
[case "$withval" in
yes|gtk2) WANT_GTK="gtk2";;
*) WANT_GTK="no";;
esac],
[WANT_GTK="gtk2"])
AC_ARG_WITH(mon, [ --with-mon use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=no])
AC_ARG_WITH(dgcc, [ --with-dgcc=COMPILER use C++ COMPILER to compile synthetic opcodes or 'precompiled'], [DYNGEN_CC=$withval], [DYNGEN_CC=precompiled])
AC_ARG_WITH(bincue,
AS_HELP_STRING([--with-bincue], [Allow cdrom image files in bin/cue mode]))
AC_ARG_WITH(libvhd,
AS_HELP_STRING([--with-libvhd], [Enable VHD disk images]))
dnl Addressing mode
AC_ARG_ENABLE(addressing,
[ --enable-addressing=AM set the addressing mode to use [default=real]],
[case "$enableval" in
real) WANT_ADDRESSING_MODE="real";;
direct) WANT_ADDRESSING_MODE="direct";;
direct,0x*) WANT_ADDRESSING_MODE="direct"; NATMEM_OFFSET=`echo "$enableval" | sed -n '/direct,\(0[[xX]][[0-9A-Fa-f]]*\([[UuLl]]\{1,2\}\)\?\)$/s//\1/p'`;;
esac],
[WANT_ADDRESSING_MODE="real"]
)
dnl SDL options.
AC_ARG_ENABLE(sdl-static, [ --enable-sdl-static use SDL static libraries for linking [default=no]], [WANT_SDL_STATIC=$enableval], [WANT_SDL_STATIC=no])
AC_ARG_ENABLE(sdl-video, [ --enable-sdl-video use SDL for video graphics [default=no]], [WANT_SDL_VIDEO=$enableval], [WANT_SDL_VIDEO=yes])
AC_ARG_ENABLE(sdl-audio, [ --enable-sdl-audio use SDL for audio [default=no]], [WANT_SDL_AUDIO=$enableval], [WANT_SDL_AUDIO=yes])
AC_ARG_ENABLE(sdl-framework, [ --enable-sdl-framework use SDL framework [default=no]], [WANT_SDL_FRAMEWORK=$enableval], [WANT_SDL_FRAMEWORK=no])
AC_ARG_ENABLE(sdl-framework-prefix, [ --enable-sdl-framework-prefix=PFX default=/Library/Frameworks], [SDL_FRAMEWORK="$enableval"], [SDL_FRAMEWORK=/Library/Frameworks])
AC_ARG_WITH(sdl1, [ --with-sdl1 use SDL 1.x, rather than SDL 2.x [default=no]], [WANT_SDL_VERSION_MAJOR=1], [])
AC_ARG_WITH(sdl3, [ --with-sdl3 use SDL 3.x, rather than SDL 2.x [default=no]], [WANT_SDL_VERSION_MAJOR=3], [])
dnl Checks for programs.
AC_PROG_CC_C99
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AC_PROG_EGREP
AC_PATH_PROGS(FILE, [file false])
AC_PATH_PROG(PERL, [perl])
dnl Check for PowerPC target CPU.
HAVE_PPC=no
AC_MSG_CHECKING(for PowerPC target CPU)
AC_EGREP_CPP(yes,
[
#ifdef __powerpc__
yes
#endif
#ifdef __ppc__
yes
#endif
], [AC_MSG_RESULT(yes); HAVE_PPC=yes], AC_MSG_RESULT(no))
dnl We use native CPU if possible.
EMULATED_PPC=yes
case $WANT_EMULATED_PPC in
auto) [[ "x$HAVE_PPC" = "xyes" ]] && EMULATED_PPC=no;;
no) EMULATED_PPC=no;;
esac
if [[ "x$EMULATED_PPC" = "xyes" ]]; then
AC_DEFINE(EMULATED_PPC, 1, [Define if using a PowerPC CPU emulator.])
fi
dnl We use mon if possible.
MONSRCS=
case "x$WANT_MON" in
x/* | x.*)
mon_srcdir=$WANT_MON
WANT_MON=yes
;;
xyes)
mon_srcdir=../../../cxmon/src
;;
esac
if [[ "x$WANT_MON" = "xyes" ]]; then
AC_MSG_CHECKING(for mon)
if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
AC_MSG_RESULT(yes)
AC_DEFINE(ENABLE_MON, 1, [Define if using "mon".])
MONSRCS="$mon_srcdir/mon.cpp $mon_srcdir/mon_6502.cpp $mon_srcdir/mon_z80.cpp $mon_srcdir/mon_cmd.cpp $mon_srcdir/mon_lowmem.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 $mon_srcdir/disass/m68k-opc.c"
CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
AC_CHECK_LIB(ncurses, tgetent, ,
[AC_CHECK_LIB(termcap, tgetent, ,
[AC_CHECK_LIB(termlib, tgetent, ,
[AC_CHECK_LIB(terminfo, tgetent, ,
[AC_CHECK_LIB(Hcurses, tgetent, ,
[AC_CHECK_LIB(curses, tgetent)])])])])])
AC_CHECK_LIB(readline, readline)
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
AC_SUBST(MONSRCS)
dnl Checks for libraries.
AC_CHECK_LIB(posix4, sem_init)
AC_CHECK_LIB(m, cos)
dnl AC_CHECK_SDLFRAMEWORK($1=NAME, $2=INCLUDES, $3=ACTION_IF_SUCCESSFUL, $4=ACTION_IF_UNSUCCESSFUL)
dnl AC_TRY_LINK uses main() but SDL needs main to take args,
dnl therefore main is undefined with #undef.
dnl Framework can be in an custom location.
AC_DEFUN([AC_CHECK_SDLFRAMEWORK], [
AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])
AC_CACHE_CHECK([whether compiler supports framework $1],
ac_Framework, [
saved_LIBS="$LIBS"
LIBS="$LIBS -framework $1"
if [[ "x$SDL_FRAMEWORK" != "x/System/Library/Frameworks" ]]; then
LIBS="$saved_LIBS -F$SDL_FRAMEWORK -framework $1"
fi
saved_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS -I$SDL_FRAMEWORK/$1.framework/Headers"
AC_TRY_LINK(
[$2
#undef main], [],
[AS_VAR_SET(ac_Framework, yes); $3], [AS_VAR_SET(ac_Framework, no);
LIBS="$saved_LIBS"; CPPFLAGS="$saved_CPPFLAGS"; $4]
)
])
AS_IF([test AS_VAR_GET(ac_Framework) = yes],
[AC_DEFINE(AS_TR_CPP(HAVE_FRAMEWORK_$1), 1, [Define if framework $1 is available.])]
)
AS_VAR_POPDEF([ac_Framework])
])
dnl Do we need SDL?
WANT_SDL=no
if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
WANT_SDL=yes
WANT_XF86_DGA=no
WANT_XF86_VIDMODE=no
WANT_FBDEV_DGA=no
SDL_SUPPORT="$SDL_SUPPORT video"
fi
if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; then
WANT_SDL=yes
SDL_SUPPORT="$SDL_SUPPORT audio"
fi
if [[ "x$WANT_SDL" = "xyes" ]]; then
if [[ "x$WANT_SDL_FRAMEWORK" = "xyes" ]]; then
TEMP_WANT_SDL_VERSION_MAJOR=$WANT_SDL_VERSION_MAJOR
if [[ "x$TEMP_WANT_SDL_VERSION_MAJOR" = "x" ]]; then
TEMP_WANT_SDL_VERSION_MAJOR=2
fi
if [[ "x$TEMP_WANT_SDL_VERSION_MAJOR" = "x2" ]]; then
AC_CHECK_SDLFRAMEWORK(SDL2, [#include <SDL.h>], [
WANT_SDL_VERSION_MAJOR=2
], [
TEMP_WANT_SDL_VERSION_MAJOR=1
])
fi
if [[ "x$TEMP_WANT_SDL_VERSION_MAJOR" = "x1" ]]; then
AC_CHECK_SDLFRAMEWORK(SDL, [#include <SDL.h>], [
WANT_SDL_VERSION_MAJOR=1
])
fi
else
ac_cv_framework_SDL=no
fi
if [[ "x$ac_cv_framework_SDL" = "xno" ]]; then
TEMP_WANT_SDL_VERSION_MAJOR=$WANT_SDL_VERSION_MAJOR
if [[ "x$TEMP_WANT_SDL_VERSION_MAJOR" = "x" ]]; then
TEMP_WANT_SDL_VERSION_MAJOR=2
fi
dnl use PKG_PROG_PKG_CONFIG to declare PKG_CONFIG variables. Otherwise,
dnl PKG_* macros may fail, without much explanation. The lack of this
dnl was causing --with-sdl1 to fail, as SDL 1.x could not be detected,
dnl as the 2nd call to PKG_CHECK_MODULES would fail, as $PKG_CONFIG
dnl never got defined (bizarrely-enough). -- dludwig@pobox.com
PKG_PROG_PKG_CONFIG
if [[ "x$TEMP_WANT_SDL_VERSION_MAJOR" = "x3" ]]; then
PKG_CHECK_MODULES([sdl3], [sdl3 >= 3.0], [
CXXFLAGS="$CXXFLAGS $sdl3_CFLAGS"
CXXFLAGS+=`echo " $sdl3_CFLAGS" | sed -e 's/\(-I.*include\)/\1\/SDL3/'`
LIBS="$LIBS $sdl3_LIBS"
WANT_SDL_VERSION_MAJOR=3
], [
TEMP_WANT_SDL_VERSION_MAJOR=1
])
fi
if [[ "x$TEMP_WANT_SDL_VERSION_MAJOR" = "x2" ]]; then
PKG_CHECK_MODULES([sdl2], [sdl2 >= 2.0], [
CXXFLAGS="$CXXFLAGS $sdl2_CFLAGS"
LIBS="$LIBS $sdl2_LIBS"
WANT_SDL_VERSION_MAJOR=2
], [
TEMP_WANT_SDL_VERSION_MAJOR=1
])
fi
if [[ "x$TEMP_WANT_SDL_VERSION_MAJOR" = "x1" ]]; then
PKG_CHECK_MODULES([sdl], [sdl >= 1.2], [
CFLAGS="$CFLAGS $sdl_CFLAGS"
CXXFLAGS="$CXXFLAGS $sdl_CFLAGS"
LIBS="$LIBS $sdl_LIBS"
WANT_SDL_VERSION_MAJOR=1
], [
WANT_SDL=no
WANT_SDL_VERSION_MAJOR=
])
fi
fi
SDL_SUPPORT=`echo "$SDL_SUPPORT" | sed -e "s/^ //"`
else
SDL_SUPPORT="none"
fi
dnl We need X11, if not using SDL.
if [[ "x$WANT_SDL_VIDEO" != "xyes" ]]; then
AC_PATH_XTRA
if [[ "x$no_x" = "xyes" ]]; then
AC_MSG_ERROR([You need X11 to run SheepShaver.])
fi
CFLAGS="$CFLAGS $X_CFLAGS"
CXXFLAGS="$CXXFLAGS $X_CFLAGS"
LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS"
fi
dnl We need pthreads on non-PowerPC systems. Try libpthread first, then libc_r (FreeBSD), then PTL.
HAVE_PTHREADS=yes
case $EMULATED_PPC:$target_os in
no:linux*|no:netbsd*)
dnl We do have our own pthread_cancel() implementation
AC_DEFINE(HAVE_PTHREAD_CANCEL, 1, [Define if you have the pthread_cancel function.])
;;
*:*)
AC_CHECK_LIB(pthread, pthread_create, , [
AC_CHECK_LIB(c_r, pthread_create, , [
AC_CHECK_LIB(PTL, pthread_create, , [
dnl XXX remove when no pthreads case is merged
AC_MSG_ERROR([You need pthreads to run SheepShaver.])
HAVE_PTHREADS=no
])
])
])
AC_CHECK_FUNCS(pthread_cancel)
AC_CHECK_FUNCS(pthread_cond_init pthread_testcancel)
AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
AC_CHECK_FUNCS(pthread_mutexattr_settype)
AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
SEMSRC=
AC_CHECK_FUNCS(sem_init, , [
if test "x$HAVE_PTHREADS" = "xyes"; then
SEMSRC=posix_sem.cpp
fi
])
;;
esac
if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
fi
dnl We use FBDev DGA if possible.
if [[ "x$WANT_FBDEV_DGA" = "xyes" ]]; then
AC_CHECK_HEADER(linux/fb.h, [
AC_DEFINE(ENABLE_FBDEV_DGA, 1, [Define if using Linux fbdev extension.])
], [
AC_MSG_WARN([Could not find Linux FBDev extension, ignoring --enable-fbdev-dga.])
WANT_FBDEV_DGA=no
])
fi
dnl We use XFree86 DGA if possible.
if [[ "x$WANT_XF86_DGA" = "xyes" ]]; then
AC_CHECK_LIB(Xxf86dga, XF86DGAQueryExtension, [
AC_DEFINE(ENABLE_XF86_DGA, 1, [Define if using XFree86 DGA extension.])
LIBS="$LIBS -lXxf86dga"
], [
AC_MSG_WARN([Could not find XFree86 DGA extension, ignoring --enable-xf86-dga.])
WANT_XF86_DGA=no
])
fi
dnl We use XFree86 VidMode if possible.
if [[ "x$WANT_XF86_VIDMODE" = "xyes" ]]; then
AC_CHECK_LIB(Xxf86vm, XF86VidModeQueryExtension, [
AC_DEFINE(ENABLE_XF86_VIDMODE, 1, [Define if using XFree86 DGA extension.])
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" = "xgtk2" ]]; then
AM_PATH_GTK_2_0(2.6.4, [
GUI_CFLAGS="$GTK_CFLAGS"
GUI_LIBS="$GTK_LIBS"
WANT_GTK=gtk2
], [
AC_MSG_WARN([Could not find GTK+ 2, disabling user interface.])
WANT_GTK=no
])
fi
if [[ "x$WANT_GTK" != "xno" -a "x$WANT_STANDALONE_GUI" = "xno" ]]; then
AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
UISRCS=prefs_editor_gtk.cpp
fi
AC_SUBST(GUI_CFLAGS)
AC_SUBST(GUI_LIBS)
dnl Build external GUI if requested.
if [[ "$WANT_STANDALONE_GUI" != "yes" ]]; then
WANT_STANDALONE_GUI=no
fi
if [[ "$WANT_GTK" = "no" ]]; then
WANT_STANDALONE_GUI=no
fi
AC_SUBST(STANDALONE_GUI, [$WANT_STANDALONE_GUI])
dnl We use ESD if possible.
if [[ "x$WANT_ESD" = "xyes" ]]; then
WANT_ESD=no
AM_PATH_ESD(0.2.8, [
AC_DEFINE(ENABLE_ESD, 1, [Define is using ESD.])
CFLAGS="$CFLAGS $ESD_CFLAGS"
CXXFLAGS="$CXXFLAGS $ESD_CFLAGS"
LIBS="$LIBS $ESD_LIBS"
WANT_ESD=yes
], [
AC_MSG_WARN([Could not find ESD, disabling ESD support.])
])
fi
dnl We use 64-bit file size support if possible.
AC_SYS_LARGEFILE
dnl Checks for header files.
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(malloc.h stdint.h)
AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h)
AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h dirent.h)
AC_CHECK_HEADERS(sys/socket.h sys/ioctl.h sys/filio.h sys/bitypes.h sys/wait.h)
AC_CHECK_HEADERS(sys/time.h sys/poll.h sys/select.h arpa/inet.h)
AC_CHECK_HEADERS(netinet/in.h linux/if.h linux/if_tun.h net/if.h net/if_tun.h, [], [], [
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
])
AC_CHECK_HEADERS(AvailabilityMacros.h)
AC_CHECK_HEADERS(IOKit/storage/IOBlockStorageDevice.h)
AC_CHECK_HEADERS(fenv.h)
AC_CHECK_HEADERS(sys/stropts.h stropts.h)
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_BIGENDIAN
AC_C_CONST
AC_C_INLINE
AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(long long, 8)
AC_CHECK_SIZEOF(float, 4)
AC_CHECK_SIZEOF(double, 8)
AC_CHECK_SIZEOF(void *, 4)
AC_TYPE_OFF_T
AC_CHECK_TYPE(loff_t, off_t)
AC_TYPE_SIZE_T
AC_TYPE_SIGNAL
AC_HEADER_TIME
AC_STRUCT_TM
dnl Check whether sys/socket.h defines type socklen_t.
dnl (extracted from ac-archive/Miscellaneous)
AC_CACHE_CHECK([for socklen_t],
ac_cv_type_socklen_t, [
AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/socket.h>
], [socklen_t len = 42; return 0;],
ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
dnl When cross-compiling, do not assume anything.
ac_cv_type_socklen_t="guessing no"
)
])
if [[ "x$ac_cv_type_socklen_t" != "xyes" ]]; then
AC_DEFINE(socklen_t, int, [Define to 'int' if <sys/types.h> doesn't define.])
fi
dnl Check whether struct sigaction has sa_restorer member.
AC_CACHE_CHECK([whether struct sigaction has sa_restorer],
ac_cv_signal_sa_restorer, [
AC_TRY_COMPILE([
#include <signal.h>
], [struct sigaction sa; sa.sa_restorer = 0;],
ac_cv_signal_sa_restorer=yes, ac_cv_signal_sa_restorer=no,
dnl When cross-compiling, do not assume anything.
ac_cv_signal_sa_restorer=no
)
])
if [[ "x$ac_cv_signal_sa_restorer" = "xyes" ]]; then
AC_DEFINE(HAVE_SIGNAL_SA_RESTORER, 1, [Define if sa_restorer is available in struct sigaction.])
fi
dnl Checks for library functions.
AC_CHECK_FUNCS(strdup strerror strlcpy cfmakeraw)
AC_CHECK_FUNCS(nanosleep)
AC_CHECK_FUNCS(sigaction signal)
AC_CHECK_FUNCS(mmap mprotect munmap)
AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
AC_CHECK_FUNCS(exp2f log2f exp2 log2)
AC_CHECK_FUNCS(floorf roundf ceilf truncf floor round ceil trunc)
AC_CHECK_FUNCS(poll inet_aton)
dnl Darwin seems to define mach_task_self() instead of task_self().
AC_CHECK_FUNCS(mach_task_self task_self)
dnl We need clock_gettime() for better performance but it may drag
dnl libpthread in, which we don't want for native ppc mode
case $EMULATED_PPC:$target_os in
no:linux*)
;;
*:*)
AC_SEARCH_LIBS(clock_gettime, [rt posix4])
AC_CHECK_FUNCS(clock_gettime clock_nanosleep)
;;
esac
dnl Check for headers and functions related to pty support (sshpty.c)
dnl From openssh-3.2.2p1 configure.ac
AC_CHECK_HEADERS(strings.h login.h sys/bsdtty.h sys/stat.h util.h pty.h)
AC_CHECK_FUNCS(_getpty vhangup strlcpy)
case "$host" in
*-*-hpux10.26)
disable_ptmx_check=yes
;;
*-*-linux*)
no_dev_ptmx=1
;;
mips-sony-bsd|mips-sony-newsos4)
AC_DEFINE(HAVE_NEWS4, 1, [Define if you are on NEWS-OS (additions from openssh-3.2.2p1, for sshpty.c).])
;;
*-*-sco3.2v4*)
no_dev_ptmx=1
;;
*-*-sco3.2v5*)
no_dev_ptmx=1
;;
*-*-cygwin*)
no_dev_ptmx=1
;;
*-*-darwin*)
no_dev_ptmx=1
;;
*-*-freebsd*)
no_dev_ptmx=1
;;
*-*-netbsd*)
no_dev_ptmx=1
;;
esac
if test -z "$no_dev_ptmx" ; then
if test "x$disable_ptmx_check" != "xyes" ; then
AC_CHECK_FILE([/dev/ptmx],
[
AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX, 1, [Define if you have /dev/ptmx.])
have_dev_ptmx=1
]
)
fi
fi
AC_CHECK_FILE([/dev/ptc],
[
AC_DEFINE_UNQUOTED(HAVE_DEV_PTS_AND_PTC, 1, [Define if you have /dev/ptc.])
have_dev_ptc=1
]
)
dnl (end of code from openssh-3.2.2p1 configure.ac)
dnl Check for systems where POSIX-style non-blocking I/O (O_NONBLOCK)
dnl doesn't work or is unimplemented. On these systems (mostly older
dnl ones), use the old BSD-style FIONBIO approach instead. [tcl.m4]
AC_CACHE_CHECK([FIONBIO vs. O_NONBLOCK for non-blocking I/O],
ac_cv_nonblocking_io, [
case "$host" in
*-*-osf*)
ac_cv_nonblocking_io=FIONBIO
;;
*-*-sunos4*)
ac_cv_nonblocking_io=FIONBIO
;;
*-*-ultrix*)
ac_cv_nonblocking_io=FIONBIO
;;
*)
ac_cv_nonblocking_io=O_NONBLOCK
;;
esac
])
if [[ "$ac_cv_nonblocking_io" = "FIONBIO" ]]; then
AC_DEFINE(USE_FIONBIO, 1, [Define if BSD-style non-blocking I/O is to be used])
fi
dnl Check whether compiler supports byte bit-fields
AC_CACHE_CHECK([whether compiler supports byte bit-fields],
ac_cv_have_byte_bitfields, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
struct A {
unsigned char b1:4;
unsigned char b2:4;
unsigned char c;
unsigned short s;
unsigned char a[4];
};
int main(void) {
A a;
return ! (sizeof(A) == 8 && &a.c == ((unsigned char *)&a + 1));
}],
[ac_cv_have_byte_bitfields=yes],
[ac_cv_have_byte_bitfields=no],
dnl When cross-compiling, assume only GCC supports this
[if [[ "$GCC" = "yes" ]]; then
ac_cv_have_byte_bitfields="guessing yes"
else
ac_cv_have_byte_bitfields="guessing no"
fi]
)
AC_LANG_RESTORE
])
dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES)
AC_DEFUN([AC_CHECK_FRAMEWORK], [
AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl
AC_CACHE_CHECK([whether compiler supports framework $1],
ac_Framework, [
saved_LIBS="$LIBS"
LIBS="$LIBS -framework $1"
AC_TRY_LINK(
[$2], [],
[AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"]
)
])
AS_IF([test AS_VAR_GET(ac_Framework) = yes],
[AC_DEFINE(AS_TR_CPP(HAVE_FRAMEWORK_$1), 1, [Define if framework $1 is available.])]
)
AS_VAR_POPDEF([ac_Framework])dnl
])
dnl Check for some MacOS X frameworks
AC_CHECK_FRAMEWORK(Carbon, [#include <Carbon/Carbon.h>])
AC_CHECK_FRAMEWORK(IOKit, [#include <IOKit/IOKitLib.h>])
AC_CHECK_FRAMEWORK(CoreFoundation, [#include <CoreFoundation/CoreFoundation.h>])
AC_CHECK_FRAMEWORK(CoreAudio, [#include <CoreAudio/CoreAudio.h>])
AC_CHECK_FRAMEWORK(AudioUnit, [#include <AudioUnit/AudioUnit.h>])
AC_CHECK_FRAMEWORK(AudioToolbox, [#include <AudioToolbox/AudioToolbox.h>])
AC_CHECK_FRAMEWORK(AppKit, [])
AC_CHECK_FRAMEWORK(Metal, [])
dnl Select system-dependant sources.
SERIALSRC=serial_unix.cpp
ETHERSRC=../dummy/ether_dummy.cpp
SCSISRC=../dummy/scsi_dummy.cpp
AUDIOSRC=../dummy/audio_dummy.cpp
PREFSSRC=../dummy/prefs_dummy.cpp
EXTFSSRC=extfs_unix.cpp
EXTRASYSSRCS=
case "$target_os" in
linux*)
ETHERSRC=ether_unix.cpp
AUDIOSRC=audio_oss_esd.cpp
SCSISRC=Linux/scsi_linux.cpp
if [[ "x$EMULATED_PPC" = "xno" ]]; then
EXTRASYSSRCS="paranoia.cpp Linux/sheepthreads.c ppc_asm.S"
fi
;;
freebsd*)
ETHERSRC=ether_unix.cpp
;;
netbsd*)
ETHERSRC=ether_unix.cpp
if [[ "x$EMULATED_PPC" = "xno" ]]; then
EXTRASYSSRCS="paranoia.cpp NetBSD/sheepthreads.c ppc_asm.S"
fi
;;
solaris*)
dnl Needed for sys/socket.h
LDFLAGS="$LDFLAGS -lsocket -lnsl"
dnl Needed for SDL2
CXXFLAGS="$CXXFLAGS -std=c++11"
;;
darwin*)
ETHERSRC=ether_unix.cpp
if [[ "x$EMULATED_PPC" = "xno" ]]; then
EXTRASYSSRCS="paranoia.cpp ppc_asm.S"
fi
if [[ "x$ac_cv_framework_IOKit" = "xyes" -a "x$ac_cv_framework_CoreFoundation" = "xyes" ]]; then
EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/sys_darwin.cpp"
fi
if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
EXTFSSRC=../MacOSX/extfs_macosx.cpp
if [[ "x$ac_cv_framework_AppKit" = "xyes" -a "x$WANT_GTK" = "xno" ]]; then
PREFSSRC="../MacOSX/prefs_macosx.mm ../MacOSX/Launcher/VMSettingsController.mm ../MacOSX/Launcher/DiskType.m"
CPPFLAGS="$CPPFLAGS -I../MacOSX/Launcher"
fi
fi
if [[ "x$WANT_ESD" = "xno" -a "x$ac_cv_framework_CoreAudio" = "xyes" -a "x$WANT_SDL_AUDIO" = "xno" ]]; then
AUDIOSRC="../MacOSX/audio_macosx.cpp ../MacOSX/AudioBackEnd.cpp ../MacOSX/AudioDevice.cpp ../MacOSX/MacOSX_sound_if.cpp"
OSX_CORE_AUDIO="-DOSX_CORE_AUDIO"
fi
;;
irix*)
AUDIOSRC=Irix/audio_irix.cpp
LIBS="$LIBS -laudio"
WANT_ESD=no
dnl Check if our compiler supports -IPA (MIPSPro)
HAVE_IPA=no
ocflags="$CFLAGS"
CFLAGS=`echo " $CFLAGS -IPA" | sed -e "s/ -g //g"`
AC_MSG_CHECKING(if "-IPA" works)
dnl Do a test compile of an empty function
AC_TRY_COMPILE([#if defined __GNUC__
# error GCC does not support IPA yet
#endif],, [AC_MSG_RESULT(yes); HAVE_IPA=yes], AC_MSG_RESULT(no))
CFLAGS="$ocflags"
;;
esac
dnl BINCUE
AS_IF([test "x$with_bincue" = "xyes" ], [have_bincue=yes], [have_bincue=no])
AS_IF([test "x$have_bincue" = "xyes" ], [
if [[ "xOSX_CORE_AUDIO" = "xno" -a "x$WANT_SDL_AUDIO"="xno" ]]; then
AC_MSG_ERROR([You need SDL or OSX Core Audio to use BINCUE support.])
AC_SUBST(USE_BINCUE, no)
else
CPPFLAGS="$CPPFLAGS -DBINCUE $OSX_CORE_AUDIO"
DEFINES="$DEFINES -DBINCUE"
AC_SUBST(USE_BINCUE, yes)
fi
], [AC_SUBST(USE_BINCUE, no)])
dnl LIBVHD
AS_IF([test "x$with_libvhd" = "xyes" ], [have_libvhd=yes], [have_libvhd=no])
AS_IF([test "x$have_libvhd" = "xyes" ], [
CPPFLAGS="$CPPFLAGS -DHAVE_LIBVHD"
LIBS="$LIBS -lvhd"
case $target_os in
linux*)
LIBS="$LIBS -luuid"
esac
AC_CHECK_LIB(vhd, vhd_open)
AC_CHECK_LIB(vhd, vhd_io_read)
AC_CHECK_LIB(vhd, vhd_io_write)
AC_CHECK_LIB(vhd, vhd_close)
])
dnl Is the slirp library supported?
case "$ac_cv_have_byte_bitfields" in
yes|"guessing yes")
CAN_SLIRP=yes
ETHERSRC=ether_unix.cpp
;;
esac
if [[ -n "$CAN_SLIRP" ]]; then
AC_DEFINE(HAVE_SLIRP, 1, [Define if slirp library is supported])
SLIRP_SRCS="\
../slirp/bootp.c ../slirp/ip_output.c ../slirp/tcp_input.c \
../slirp/cksum.c ../slirp/mbuf.c ../slirp/tcp_output.c \
../slirp/debug.c ../slirp/misc.c ../slirp/tcp_subr.c \
../slirp/if.c ../slirp/sbuf.c ../slirp/tcp_timer.c \
../slirp/ip_icmp.c ../slirp/slirp.c ../slirp/tftp.c \
../slirp/ip_input.c ../slirp/socket.c ../slirp/udp.c"
fi
AC_SUBST(SLIRP_SRCS)
dnl SDL overrides
if [[ "x$WANT_SDL" = "xyes" ]]; then
AC_DEFINE(USE_SDL, 1, [Define to enble SDL support.])
fi
if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
AC_DEFINE(USE_SDL_VIDEO, 1, [Define to enable SDL video graphics support.])
VIDEOSRCS="../SDL/video_sdl.cpp ../SDL/video_sdl2.cpp ../SDL/video_sdl3.cpp"
KEYCODES="../SDL/keycodes"
if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
AC_MSG_CHECKING([whether __LP64__ is defined])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if !defined(__LP64__)
# error __LP64__ not defined
#endif
]])],
[AC_MSG_RESULT(yes); LP64_DEFINED=yes],
[AC_MSG_RESULT(no)])
if [[ "x$LP64_DEFINED" = "xyes" ]]; then
EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx64.mm ../pict.c"
else
EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
fi
EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/utils_macosx.mm"
CPPFLAGS="$CPPFLAGS -I../MacOSX"
else
EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
if [[ "$WANT_GTK" != "no" ]]; then
LIBS="$LIBS -lX11"
fi
fi
else
VIDEOSRCS="video_x.cpp"
KEYCODES="keycodes"
EXTRASYSSRCS="$EXTRASYSSRCS clip_unix.cpp"
fi
if [[ "x$WANT_SDL_AUDIO" = "xyes" ]]; then
AC_DEFINE(USE_SDL_AUDIO, 1, [Define to enable SDL audio support])
AUDIOSRC="../SDL/audio_sdl.cpp ../SDL/audio_sdl3.cpp"
fi
dnl BINCUE overrides
if [[ "x$have_bincue" = "xyes" ]]; then
EXTRASYSSRCS="$EXTRASYSSRCS bincue.cpp"
fi
dnl libvhd overrides
if [[ "x$have_libvhd" = "xyes" ]]; then
EXTRASYSSRCS="$EXTRASYSSRCS vhd_unix.cpp"
fi
SYSSRCS="$VIDEOSRCS $EXTFSSRC $PREFSSRC $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $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
dnl $3 -- template name
AC_DEFUN([AC_TRANSLATE_DEFINE], [
if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
AC_DEFINE($1, 1, $3)
fi
])
dnl Check that the host supports TUN/TAP devices
AC_CACHE_CHECK([whether TUN/TAP is supported],
ac_cv_tun_tap_support, [
AC_TRY_COMPILE([
#if defined(HAVE_NETINET_IN_H)
#include <netinet/in.h>
#endif
#if defined(HAVE_LINUX_IF_H) && defined(HAVE_LINUX_IF_TUN_H)
#include <linux/if.h>
#include <linux/if_tun.h>
#endif
#if defined(HAVE_NET_IF_H) && defined(HAVE_NET_IF_TUN_H)
#include <net/if.h>
#include <net/if_tun.h>
#endif
], [
struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
],
ac_cv_tun_tap_support=yes, ac_cv_tun_tap_support=no
)
])
AC_TRANSLATE_DEFINE(ENABLE_TUNTAP, "$ac_cv_tun_tap_support",
[Define if your system supports TUN/TAP devices.])
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",
[Define if your system has a working vm_allocate()-based memory allocator.])
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 "../CrossPlatform/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 "../CrossPlatform/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",
[Define if your system has a working vm_allocate()-based memory allocator.])
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, "$have_mmap_vm",
[Define if your system has a working mmap()-based memory allocator.])
dnl Check that mmap() and associated functions work.
if [[ "x$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 "../CrossPlatform/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, "$ac_cv_mmap_anon",
[Define if <sys/mman.h> defines MAP_ANON and mmap()'ing with MAP_ANON works.])
AC_CACHE_CHECK([whether mmap supports MAP_ANONYMOUS],
ac_cv_mmap_anonymous, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_MMAP_ANONYMOUS
#define CONFIGURE_TEST_VM_MAP
#define TEST_VM_MMAP_ANON
#include "../CrossPlatform/vm_alloc.cpp"
], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
dnl When cross-compiling, do not assume anything.
ac_cv_mmap_anonymous="guessing no"
)
AC_LANG_RESTORE
]
)
AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous",
[Define if <sys/mman.h> defines MAP_ANONYMOUS and mmap()'ing with MAP_ANONYMOUS works.])
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_$test_def
#include "../CrossPlatform/vm_alloc.cpp"
], ac_cv_mprotect_works=no, rm -f core,
dnl When cross-compiling, do not assume anything
ac_cv_mprotect_works="guessing no"
)
done
AC_TRY_RUN([
#define CONFIGURE_TEST_VM_MAP
#define TEST_VM_PROT_RDWR_WRITE
#include "../CrossPlatform/vm_alloc.cpp"
], , ac_cv_mprotect_works=no,
dnl When cross-compiling, do not assume anything
ac_cv_mprotect_works="guessing no"
)
AC_LANG_RESTORE
]
)
dnl Remove support for mmap() if mprotect() does not work
if [[ "x$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,
[Define if your system has a working mmap()-based memory allocator.])
fi dnl HAVE_MMAP_VM
dnl Check if we can modify the __PAGEZERO segment for use as Low Memory
AC_CACHE_CHECK([whether __PAGEZERO can be Low Memory area 0x0000-0x3000],
ac_cv_pagezero_hack, [
ac_cv_pagezero_hack=no
case $target_os:$target_cpu in
darwin*:x86_64)
ac_cv_pagezero_hack=yes
;;
esac
])
AC_TRANSLATE_DEFINE(PAGEZERO_HACK, "$ac_cv_pagezero_hack",
[Define if the __PAGEZERO Mach-O Low Memory Globals hack works on this system.])
dnl Check signal handlers need to be reinstalled
AC_CACHE_CHECK([whether signal handlers need to be reinstalled],
ac_cv_signal_need_reinstall, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <signal.h>
static int handled_signal = 0;
RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
int main(void) { /* returns 0 if signals need not to be reinstalled */
signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
exit(handled_signal == 2);
}
], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
dnl When cross-compiling, do not assume anything.
ac_cv_signal_need_reinstall="guessing yes"
)
AC_LANG_RESTORE
]
)
AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall",
[Define if your system requires signals to be reinstalled.])
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, "$ac_cv_sigaction_need_reinstall",
[Define if your system requires sigactions to be reinstalled.])
dnl Check if Mach exceptions supported.
AC_CACHE_CHECK([whether your system supports Mach exceptions],
ac_cv_have_mach_exceptions, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_MACH_EXCEPTIONS 1
#define CONFIGURE_TEST_SIGSEGV_RECOVERY
#include "../CrossPlatform/vm_alloc.cpp"
#include "../CrossPlatform/sigsegv.cpp"
],
ac_cv_have_mach_exceptions=yes,
ac_cv_have_mach_exceptions=no,
dnl When cross-compiling, do not assume anything.
ac_cv_have_mach_exceptions=no
)
AC_LANG_RESTORE
]
)
if [[ "$ac_cv_have_mach_exceptions" = "yes" ]]; then
sigsegv_recovery=mach
fi
AC_TRANSLATE_DEFINE(HAVE_MACH_EXCEPTIONS, "$ac_cv_have_mach_exceptions",
[Define if your system supports Mach exceptions.])
dnl Check if Windows exceptions are supported.
AC_CACHE_CHECK([whether your system supports Windows exceptions],
ac_cv_have_win32_exceptions, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_WIN32_EXCEPTIONS 1
#define CONFIGURE_TEST_SIGSEGV_RECOVERY
#include "../CrossPlatform/vm_alloc.cpp"
#include "../CrossPlatform/sigsegv.cpp"
], [
sigsegv_recovery=win32
ac_cv_have_win32_exceptions=yes
],
ac_cv_have_win32_exceptions=no,
dnl When cross-compiling, do not assume anything.
ac_cv_have_win32_exceptions=no
)
AC_LANG_RESTORE
]
)
AC_TRANSLATE_DEFINE(HAVE_WIN32_EXCEPTIONS, "$ac_cv_have_win32_exceptions",
[Define if your system supports Windows exceptions.])
dnl Otherwise, check if extended signals are supported.
if [[ -z "$sigsegv_recovery" ]]; then
AC_CACHE_CHECK([whether your system supports extended signal handlers],
ac_cv_have_extended_signals, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_SIGINFO_T 1
#define CONFIGURE_TEST_SIGSEGV_RECOVERY
#include "../CrossPlatform/vm_alloc.cpp"
#include "../CrossPlatform/sigsegv.cpp"
],
ac_cv_have_extended_signals=yes,
ac_cv_have_extended_signals=no,
dnl When cross-compiling, do not assume anything.
ac_cv_have_extended_signals=no
)
AC_LANG_RESTORE
]
)
if [[ "$ac_cv_have_extended_signals" = "yes" ]]; then
sigsegv_recovery=siginfo
fi
AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
[Define if your system support extended signals.])
fi
dnl Otherwise, check for subterfuges.
if [[ -z "$sigsegv_recovery" ]]; 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 "../CrossPlatform/vm_alloc.cpp"
#include "../CrossPlatform/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
])
if [[ "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
sigsegv_recovery=sigcontext
fi
AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack",
[Define if we know a hack to replace siginfo_t->si_addr member.])
fi
dnl Check if we can ignore the fault (instruction skipping in SIGSEGV handler)
AC_CACHE_CHECK([whether we can skip instruction in SIGSEGV handler],
ac_cv_have_skip_instruction, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_SIGSEGV_SKIP_INSTRUCTION 1
#define CONFIGURE_TEST_SIGSEGV_RECOVERY
#include "../CrossPlatform/vm_alloc.cpp"
#include "../CrossPlatform/sigsegv.cpp"
], ac_cv_have_skip_instruction=yes, ac_cv_have_skip_instruction=no,
dnl When cross-compiling, do not assume anything.
ac_cv_have_skip_instruction=no
)
AC_LANG_RESTORE
]
)
if [[ "$target_cpu" = "arm" -o "$target_cpu" = "aarch64" ]]; then
ac_cv_have_skip_instruction=yes
fi
AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$ac_cv_have_skip_instruction",
[Define if we can ignore the fault (instruction skipping in SIGSEGV handler).])
dnl Can we do Video on SEGV Signals ?
CAN_VOSF=no
if [[ -n "$sigsegv_recovery" ]]; then
CAN_VOSF=yes
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, 1, [Define if using video enabled on SEGV signals.])
else
WANT_VOSF=no
fi
dnl Check addressing mode to use
AC_MSG_CHECKING([for addressing mode to use])
if [[ "$EMULATED_PPC" != "yes" ]]; then
if [[ "$WANT_ADDRESSING_MODE" != "real" ]]; then
AC_MSG_WARN([Running in native PowerPC mode, force use of Real Addressing.])
WANT_ADDRESSING_MODE="real"
fi
fi
if [[ "$WANT_ADDRESSING_MODE" = "direct" ]]; then
if [[ -n "$NATMEM_OFFSET" ]]; then
NATMEM_OFFSET_DEF="-DNATMEM_OFFSET=$NATMEM_OFFSET"
fi
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
cat confdefs.h > conftest.$ac_ext
cat >> conftest.$ac_ext << EOF
#include <stdio.h>
#include <string.h>
#include "../CrossPlatform/vm_alloc.cpp"
int main(void)
{
if (vm_init() < 0)
return 1;
static const struct {
unsigned long base;
unsigned int size;
} ranges[[]] = {
{ 0x00000000, 0x0003000 },
{ 0x10000000, 0x2000000 },
{ 0x40800000, 0x0400000 },
{ 0x68070000, 0x0010000 },
{ 0x69000000, 0x0080000 },
{ 0x68ffe000, 0x0002000 },
{ 0x5fffe000, 0x0002000 },
{ 0x60000000, 0x0040000 },
};
const int n_ranges = sizeof(ranges)/ sizeof(ranges[[0]]);
#ifdef NATMEM_OFFSET
unsigned long ofs = NATMEM_OFFSET;
#else
for (unsigned long ofs = 0x10000000; ofs <= 0x90000000; ofs += 0x10000000)
#endif
for (int i = 0; i < n_ranges; i++) {
char *m = (char *)(ranges[[i]].base + ofs);
if (vm_acquire_fixed(m, ranges[[i]].size) != 0)
break;
memset(m, 0, ranges[[i]].size);
vm_release(m, ranges[[i]].size);
if (i == n_ranges - 1) {
if (sizeof(void *) == 8 && ofs > 0xffffffff)
printf("0x%lxul\n", ofs);
else
printf("0x%08x\n", ofs);
return 0;
}
}
vm_exit();
return 1;
}
EOF
doit='$CXX conftest.$ac_ext -o conftest.$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS $LIBS $NATMEM_OFFSET_DEF >& AS_MESSAGE_LOG_FD'
if AC_TRY_EVAL(doit); then
NATMEM_OFFSET=`./conftest.$ac_exeext`
else
NATMEM_OFFSET=
fi
rm -f conftest*
AC_LANG_RESTORE
if [[ -z "$NATMEM_OFFSET" ]]; then
AC_MSG_ERROR([could not determine a sensible NATMEM_OFFSET value])
else
WANT_ADDRESSING_MODE="direct,$NATMEM_OFFSET"
AC_DEFINE_UNQUOTED(NATMEM_OFFSET, $NATMEM_OFFSET,
[Define constant offset for Mac address translation])
fi
fi
case "$host" in
arm-apple-*)
AC_DEFINE_UNQUOTED(NATMEM_OFFSET, 0x400000000000, [Define constant offset for Mac address translation])
;;
esac
AC_MSG_RESULT($WANT_ADDRESSING_MODE)
dnl Utility macro used by next two tests.
dnl AC_EXAMINE_OBJECT(C source code,
dnl commands examining object file,
dnl [commands to run if compile failed]):
dnl
dnl Compile the source code to an object file; then convert it into a
dnl printable representation. All unprintable characters and
dnl asterisks (*) are replaced by dots (.). All white space is
dnl deleted. Newlines (ASCII 0x10) in the input are preserved in the
dnl output, but runs of newlines are compressed to a single newline.
dnl Finally, line breaks are forcibly inserted so that no line is
dnl longer than 80 columns and the file ends with a newline. The
dnl result of all this processing is in the file conftest.dmp, which
dnl may be examined by the commands in the second argument.
dnl
AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
[AC_LANG_SAVE
AC_LANG_C
dnl Next bit cribbed from AC_TRY_COMPILE.
cat > conftest.$ac_ext <<EOF
[#line __oline__ "configure"
#include "confdefs.h"
$1
]EOF
ac_save_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS -fno-lto"
gcc_ac_compile_ok=0
if AC_TRY_EVAL(ac_compile); then
gcc_ac_compile_ok=1
else
CFLAGS=$ac_save_CFLAGS
if AC_TRY_EVAL(ac_compile); then
gcc_ac_compile_ok=1
fi
fi
CFLAGS=$ac_save_CFLAGS
if test "$gcc_ac_compile_ok" = 1; then
od -c conftest.o |
sed ['s/^[0-7]*[ ]*/ /
s/\*/./g
s/ \\n/*/g
s/ [0-9][0-9][0-9]/./g
s/ \\[^ ]/./g'] |
tr -d '
' | tr -s '*' '
' | fold | sed '$a\
' > conftest.dmp
$2
ifelse($3, , , else
$3
)dnl
fi
rm -rf conftest*
AC_LANG_RESTORE])
dnl Floating point format probe.
dnl The basic concept is the same as the above: grep the object
dnl file for an interesting string. We have to watch out for
dnl rounding changing the values in the object, however; this is
dnl handled by ignoring the least significant byte of the float.
dnl
dnl Does not know about VAX G-float or C4x idiosyncratic format.
dnl It does know about PDP-10 idiosyncratic format, but this is
dnl not presently supported by GCC. S/390 "binary floating point"
dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
dnl as ASCII?)
dnl
AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
[AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
[gcc_AC_EXAMINE_OBJECT(
[/* This will not work unless sizeof(double) == 8. */
extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
/* This structure must have no internal padding. */
struct possibility {
char prefix[8];
double candidate;
char postfix[8];
};
#define C(cand) { "\nformat:", cand, ":tamrof\n" }
struct possibility table [] =
{
C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
C( 3.53802595280598432000e+18), /* D__float - VAX */
C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
C(-5.22995989424860458374e+10) /* IBMHEXFP - s/390 format, EBCDIC */
};],
[if grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='IEEE (big-endian)'
elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='IEEE (big-endian)'
elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='IEEE (little-endian)'
elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='IEEE (little-endian)'
elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='VAX D-float'
elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='PDP-10'
elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
ac_cv_c_float_format='IBM 370 hex'
else
AC_MSG_ERROR(Unknown floating point format)
fi],
[AC_MSG_ERROR(compile failed)])
])
# IEEE is the default format. If the float endianness isn't the same
# as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
# (which is a tristate: yes, no, default). This is only an issue with
# IEEE; the other formats are only supported by a few machines each,
# all with the same endianness.
format=IEEE_FLOAT_FORMAT
fbigend=
case $ac_cv_c_float_format in
'IEEE (big-endian)' )
if test $ac_cv_c_bigendian = no; then
fbigend=1
fi
;;
'IEEE (little-endian)' )
if test $ac_cv_c_bigendian = yes; then
fbigend=0
fi
;;
'VAX D-float' )
format=VAX_FLOAT_FORMAT
;;
'PDP-10' )
format=PDP10_FLOAT_FORMAT
;;
'IBM 370 hex' )
format=IBM_FLOAT_FORMAT
;;
esac
AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
[Define to the floating point format of the host machine.])
if test -n "$fbigend"; then
AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
[Define to 1 if the host machine stores floating point numbers in
memory with the word containing the sign bit at the lowest address,
or to 0 if it does it the other way around.
This macro should not be defined if the ordering is the same as for
multi-word integers.])
fi
])
dnl Check for host float format
gcc_AC_C_FLOAT_FORMAT
dnl Platform specific binary postprocessor
AC_PATH_PROG(BLESS, "true")
if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
# BLESS=Darwin/lowmem
LDFLAGS="$LDFLAGS -pagezero_size 0x3000"
fi
dnl Check for GCC 2.7 or higher.
HAVE_GCC27=no
AC_MSG_CHECKING(for GCC 2.7 or higher)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5)
# error gcc < 2.7
typedef syntax error;
#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_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ >= 3)
# error gcc < 3
typedef syntax error;
#endif
]])],
[AC_MSG_RESULT(yes); HAVE_GCC30=yes],
[AC_MSG_RESULT(no)])
dnl Check for GCC 4.0 or higher.
HAVE_GCC40=no
AC_MSG_CHECKING(for GCC 4.0 or higher)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#if ! (__GNUC__ >= 4)
# error gcc < 4
typedef syntax error;
#endif
]])],
[AC_MSG_RESULT(yes); HAVE_GCC40=yes],
[AC_MSG_RESULT(no)])
dnl Check for ICC.
AC_MSG_CHECKING(for ICC)
HAVE_ICC=no
if $CXX -V -v 2>&1 | grep -q "Intel(R) C++ Compiler"; then
HAVE_ICC=yes
fi
AC_MSG_RESULT($HAVE_ICC)
dnl Determine the generated object format
AC_CACHE_CHECK([the format of compiler generated objects],
ac_cv_object_format, [
echo 'int i;' > conftest.$ac_ext
ac_cv_object_format=no
if AC_TRY_EVAL(ac_compile); then
case `/usr/bin/file conftest.$ac_objext` in
*"ELF"*)
ac_cv_object_format=elf
;;
*"Mach-O"*)
ac_cv_object_format=mach
;;
*)
ac_cv_object_format=unknown
;;
esac
fi
rm -rf conftest*
])
dnl Add -fno-strict-aliasing for slirp sources
if [[ "x$HAVE_GCC30" = "xyes" ]]; then
SAVED_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -fno-strict-aliasing"
AC_CACHE_CHECK([whether the compiler supports -fno-strict-aliasing],
ac_cv_gcc_no_strict_aliasing, [
AC_TRY_COMPILE([],[],[ac_cv_gcc_no_strict_aliasing=yes],[ac_cv_gcc_no_strict_aliasing=no])
])
if [[ "x$ac_cv_gcc_no_strict_aliasing" = "xyes" ]]; then
AC_SUBST(SLIRP_CFLAGS, "-fno-strict-aliasing")
fi
CFLAGS="$SAVED_CFLAGS"
fi
dnl Add -mdynamic-no-pic for MacOS X (XXX icc10 will support MacOS X)
if [[ "x$HAVE_GCC30" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
SAVED_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -mdynamic-no-pic"
AC_CACHE_CHECK([whether the compiler supports -mdynamic-no-pic],
ac_cv_gcc_mdynamic_no_pic, [
AC_TRY_COMPILE([],[],[ac_cv_gcc_mdynamic_no_pic=yes],[ac_cv_gcc_mdynamic_no_pic=no])
])
if [[ "x$ac_cv_gcc_mdynamic_no_pic" = "xyes" ]]; then
CXXFLAGS="$CXXFLAGS -mdynamic-no-pic"
else
CFLAGS="$SAVED_CFLAGS"
fi
fi
dnl CPU emulator sources
if [[ "x$EMULATED_PPC" = "xyes" ]]; then
CPUSRCS="\
../kpx_cpu/src/mathlib/ieeefp.cpp \
../kpx_cpu/src/mathlib/mathlib.cpp \
../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
../kpx_cpu/src/cpu/ppc/ppc-translate.cpp \
../kpx_cpu/src/utils/utils-cpuinfo.cpp"
CPPFLAGS="$CPPFLAGS -I../kpx_cpu/include -I../kpx_cpu/src"
dnl Enable JIT compiler, if possible
if [[ "x$WANT_JIT" = "xyes" ]]; then
ac_cv_use_dyngen_precompiled=no
AC_CACHE_CHECK([whether dyngen can be used],
ac_cv_use_dyngen, [
case $host_cpu:$ac_cv_object_format in
powerpc:elf)
ac_cv_use_dyngen=yes
;;
x86_64:elf)
ac_cv_use_dyngen=yes
;;
i?86:elf)
ac_cv_use_dyngen=yes
;;
mips:elf)
ac_cv_use_dyngen=yes
;;
powerpc:mach)
ac_cv_use_dyngen=yes
;;
x86_64:mach)
ac_cv_use_dyngen=yes
;;
i?86:mach)
ac_cv_use_dyngen=yes
;;
*:*)
ac_cv_use_dyngen=no
;;
esac
dnl Check for a suitable synthetic opcodes compiler (icc is faking itself as gcc 3.2.2)
if [[ -z "$DYNGEN_CC" ]]; then
if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_GCC40" = "xno" -a "x$HAVE_ICC" = "xno" ]]; then
DYNGEN_CC=$CXX
elif command -v g++ >/dev/null; then
vers=`g++ -dumpversion`
function version { echo "$@" | awk -F. '{ printf("%d%03d%03d%03d\n", $1,$2,$3,$4); }'; }
if [[ $(version $vers) -ge $(version "2.7.0") ]] && [[ $(version $vers) -lt $(version "4.0.0") ]]; then
DYNGEN_CC="$gxx"
fi
fi
fi
if [[ -z "$DYNGEN_CC" -o "x$DYNGEN_CC" = "xprecompiled" ]]; then
case $host_cpu in
i?86)
ac_cv_use_dyngen_precompiled=yes
;;
x86_64)
ac_cv_use_dyngen_precompiled=yes
;;
*)
ac_cv_use_dyngen=no
;;
esac
fi
if [[ "x$ac_cv_use_dyngen_precompiled" = "xyes" ]]; then DYNGEN_CC=precompiled; fi
])
if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
case $host_cpu in
i?86)
DYNGEN_OP_FLAGS="-fomit-frame-pointer"
;;
mips)
DYNGEN_OP_FLAGS="-fno-delayed-branch -mno-abicalls"
;;
powerpc)
if [[ "x$ac_cv_object_format" = "xmach" ]]; then
DYNGEN_OP_FLAGS="-mdynamic-no-pic"
fi
;;
esac
have_dyngen_gcc3=no
if [[ "$DYNGEN_CC" != "precompiled" ]]; then
case "x`$DYNGEN_CC -dumpversion`" in
x[12].*) ;;
x*) have_dyngen_gcc3=yes ;;
esac
else
case "x`$CXX -dumpversion`" in
x[12].*) ;;
x*) have_dyngen_gcc3=yes ;;
esac
fi
if [[ "x$have_dyngen_gcc3" = "xyes" ]]; then
DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-align-functions -fno-stack-protector"
else
DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
fi
DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-functions -finline-limit=10000 -fno-exceptions -g0"
if [[ "x$have_dyngen_gcc3" = "xyes" ]]; then
DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls -fno-reorder-blocks-and-partition"
fi
if [[ "x$DYNGEN_CC" != "x$CXX" ]]; then
DYNGEN_CFLAGS="-O2 $CFLAGS"
DYNGEN_CXXFLAGS="-O2 $CXXFLAGS"
else
DYNGEN_CFLAGS="\$(CFLAGS)"
DYNGEN_CXXFLAGS="\$(CXXFLAGS)"
fi
else
WANT_JIT=no
fi
AC_TRANSLATE_DEFINE(ENABLE_DYNGEN, $ac_cv_use_dyngen, [Define to enable dyngen engine])
if [[ "x$WANT_JIT" = "xyes" ]]; then
DYNGENSRCS="\
../kpx_cpu/src/cpu/jit/dyngen.c \
../kpx_cpu/src/cpu/jit/cxxdemangle.cpp"
CPUSRCS="\
../kpx_cpu/src/cpu/jit/jit-cache.cpp \
../kpx_cpu/src/cpu/jit/basic-dyngen.cpp \
../kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp \
../kpx_cpu/src/cpu/ppc/ppc-jit.cpp $CPUSRCS"
fi
fi
CPUSRCS="$CPUSRCS ../kpx_cpu/sheepshaver_glue.cpp ../kpx_cpu/ppc-dis.c"
else
WANT_JIT=no
fi
if [[ "x$WANT_JIT" = "xyes" ]]; then
CPPFLAGS="$CPPFLAGS -DUSE_JIT"
fi
dnl Higher level optimizations with MIPSPro compilers are possible
if [[ "x$HAVE_IPA" = "xyes" ]]; then
CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -O3 -OPT:Olimit=0 -IPA"
CXXFLAGS="-LANG:std $CXXFLAGS"
LDFLAGS="$LDFLAGS -O3 -OPT:Olimit=0 -IPA"
fi
dnl Check for linker script support
case $target_os:$target_cpu in
linux*:i?86) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";;
linux*:x86_64) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-x86_64.ld";;
linux*:powerpc) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-ppc.ld";;
netbsd*:i?86) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/linux-i386.ld";;
freebsd*:i?86) LINKER_SCRIPT_FLAGS="-Wl,-T,ldscripts/freebsd-i386.ld";;
#darwin*:*) LINKER_SCRIPT_FLAGS="-Wl,-seg1addr,0x78048000";;
esac
if [[ -n "$LINKER_SCRIPT_FLAGS" ]]; then
AC_CACHE_CHECK([whether linker script is usable],
ac_cv_linker_script_works, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS $LINKER_SCRIPT_FLAGS"
AC_TRY_RUN(
[int main() {if ((char *)&main < (char *)0x70000000) return 1;}],
[ac_cv_linker_script_works=yes],
[ac_cv_linker_script_works=no],
dnl When cross-compiling, assume it works
[ac_cv_linker_script_works="guessing yes"]
)
AC_LANG_RESTORE
if [[ "$ac_cv_linker_script_works" = "no" ]]; then
LDFLAGS="$saved_LDFLAGS"
LINKER_SCRIPT_FLAGS=""
fi
])
fi
AC_TRANSLATE_DEFINE(HAVE_LINKER_SCRIPT, "$ac_cv_linker_script_works",
[Define if there is a linker script to relocate the executable above 0x70000000.])
dnl Generate Makefile.
AC_SUBST(PERL)
AC_SUBST(USE_DYNGEN, [$ac_cv_use_dyngen])
AC_SUBST(USE_DYNGEN_PRECOMPILED, [$ac_cv_use_dyngen_precompiled])
AC_SUBST(DYNGENSRCS)
AC_SUBST(DYNGEN_CC)
AC_SUBST(DYNGEN_CFLAGS)
AC_SUBST(DYNGEN_CXXFLAGS)
AC_SUBST(DYNGEN_OP_FLAGS)
AC_SUBST(SYSSRCS)
AC_SUBST(CPUSRCS)
AC_SUBST(BLESS)
AC_SUBST(KEYCODES)
AC_OUTPUT([
Makefile
../MacOSX/Info.plist
])
dnl Print summary.
echo
echo SheepShaver configuration summary:
echo
echo SDL support ...................... : $SDL_SUPPORT
echo SDL major-version ................ : $WANT_SDL_VERSION_MAJOR
echo BINCUE support ................... : $have_bincue
echo LIBVHD support ................... : $have_libvhd
echo FBDev DGA support ................ : $WANT_FBDEV_DGA
echo XFree86 DGA support .............. : $WANT_XF86_DGA
echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
echo Using PowerPC emulator ........... : $EMULATED_PPC
echo Enable JIT compiler .............. : $WANT_JIT
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 Addressing mode .................. : $WANT_ADDRESSING_MODE
echo Bad memory access recovery type .. : $sigsegv_recovery
echo
echo "Configuration done. Now type \"make\"."
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