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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], 2.2, [Christian.Bauer@uni-mainz.de], SheepShaver)
AC_CONFIG_SRCDIR(main_unix.cpp)
AC_PREREQ(2.52)
AC_CONFIG_HEADER(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 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(xf86-dga, [ --enable-xf86-dga use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
AC_ARG_ENABLE(xf86-vidmode, [ --enable-xf86-vidmode use the XFree86 VidMode extension [default=no]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=no])
AC_ARG_ENABLE(vosf, [ --enable-vosf enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
AC_ARG_WITH(esd, [ --with-esd support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$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])
AC_ARG_WITH(dgcc, [ --with-dgcc=COMPILER use C++ COMPILER to compile synthetic opcodes], [DYNGEN_CC=$withval])
dnl Addressing mode
AC_ARG_ENABLE(addressing,
[ --enable-addressing=AM set the addressing mode to use [default=real]],
[case "$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,\(0[[xX]][[0-9A-Fa-f]]*\)/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=no])
AC_ARG_ENABLE(sdl-audio, [ --enable-sdl-audio use SDL for audio [default=no]], [WANT_SDL_AUDIO=$enableval], [WANT_SDL_AUDIO=no])
dnl Checks for programs.
AC_PROG_CC
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_MAKE_SET
AC_PROG_INSTALL
AC_PROG_EGREP
AC_CHECK_PROGS(FILE, [file false])
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=$WANT_MON
WANT_MON=yes
;;
xyes)
mon_srcdir=../../../mon/src
;;
esac
if [[ "x$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)
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$WANT_SDL" = "xyes" ]]; then
AC_PATH_PROG(sdl_config, "sdl-config")
if [[ -n "$sdl_config" ]]; then
case $target_os in
# Special treatment for Cygwin so that we can still use the POSIX layer
*cygwin*)
sdl_cflags="-I`$sdl_config --prefix`/include/SDL"
sdl_libs="-L`$sdl_config --exec-prefix`/lib -lSDL"
;;
*)
sdl_cflags=`$sdl_config --cflags`
if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then
sdl_libs=`$sdl_config --static-libs`
else
sdl_libs=`$sdl_config --libs`
fi
;;
esac
CFLAGS="$CFLAGS $sdl_cflags"
CXXFLAGS="$CXXFLAGS $sdl_cflags"
LIBS="$LIBS $sdl_libs"
else
WANT_SDL=no
fi
SDL_SUPPORT=`echo "$SDL_SUPPORT" | sed -e "s/^ //"`
else
SDL_SUPPORT="none"
fi
dnl We need X11, if not using SDL.
if [[ "x$WANT_SDL" = "xno" ]]; then
AC_PATH_XTRA
if [[ "x$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*)
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, , [
AC_MSG_ERROR([You need pthreads to run Basilisk II.])
])
])
])
AC_CHECK_FUNCS(pthread_cancel)
AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
AC_CHECK_FUNCS(pthread_mutexattr_settype)
AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
fi
dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
SEMSRC=
AC_CHECK_FUNCS(sem_init, , [
if test "x$HAVE_PTHREADS" = "xyes"; then
SEMSRC=posix_sem.cpp
fi
])
;;
esac
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$WANT_GTK" = "xyes" ]]; then
AM_PATH_GTK(1.2.0, [
AC_DEFINE(ENABLE_GTK, 1, [Define if using GTK.])
CFLAGS="$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, 1, [Define is using ESD.])
CFLAGS="$CFLAGS $ESD_CFLAGS"
CXXFLAGS="$CXXFLAGS $ESD_CFLAGS"
LIBS="$LIBS $ESD_LIBS"
], [
AC_MSG_WARN([Could not find ESD, disabling ESD support.])
WANT_ESD=no
])
fi
dnl We use 64-bit file size support if possible.
AC_SYS_LARGEFILE
dnl Checks for header files.
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
AC_CHECK_HEADERS(malloc.h)
AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h)
AC_CHECK_HEADERS(sys/time.h sys/times.h sys/socket.h)
AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h dirent.h)
AC_CHECK_HEADERS(linux/if.h, [], [], [
#if HAVE_SYS_SOCKET_H
# include <sys/socket.h>
#endif
])
AC_CHECK_HEADERS(linux/if_tun.h net/if.h net/if_tun.h)
AC_CHECK_HEADERS(fenv.h)
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_BIGENDIAN
AC_C_CONST
AC_C_INLINE
AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(long long, 8)
AC_CHECK_SIZEOF(float, 4)
AC_CHECK_SIZEOF(double, 8)
AC_CHECK_SIZEOF(void *, 4)
AC_TYPE_OFF_T
AC_CHECK_TYPE(loff_t, off_t)
AC_TYPE_SIZE_T
AC_TYPE_SIGNAL
AC_HEADER_TIME
AC_STRUCT_TM
dnl Check whether struct sigaction has sa_restorer member.
AC_CACHE_CHECK([whether struct sigaction has sa_restorer],
ac_cv_signal_sa_restorer, [
AC_TRY_COMPILE([
#include <signal.h>
], [struct sigaction sa; sa.sa_restorer = 0;],
ac_cv_signal_sa_restorer=yes, ac_cv_signal_sa_restorer=no,
dnl When cross-compiling, do not assume anything.
ac_cv_signal_sa_restorer=no
)
])
if [[ "x$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 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(posix_memalign memalign valloc)
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)
;;
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 "$host" in
*-*-hpux10.26)
disable_ptmx_check=yes
;;
*-*-linux*)
no_dev_ptmx=1
;;
mips-sony-bsd|mips-sony-newsos4)
AC_DEFINE(HAVE_NEWS4, 1, [Define if you are on NEWS-OS (additions from openssh-3.2.2p1, for sshpty.c).])
;;
*-*-sco3.2v4*)
no_dev_ptmx=1
;;
*-*-sco3.2v5*)
no_dev_ptmx=1
;;
*-*-cygwin*)
no_dev_ptmx=1
;;
esac
if test -z "$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 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(
[$2], [int main(void) { return 0; }],
[AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"]
)
])
AS_IF([test AS_VAR_GET(ac_Framework) = yes],
[AC_DEFINE(AS_TR_CPP(HAVE_FRAMEWORK_$1), 1, [Define if framework $1 is available.])]
)
AS_VAR_POPDEF([ac_Framework])dnl
])
dnl Check for some MacOS X frameworks
AC_CHECK_FRAMEWORK(Carbon, [#include <Carbon/Carbon.h>])
AC_CHECK_FRAMEWORK(IOKit, [#include <IOKit/IOKitLib.h>])
dnl Select system-dependant sources.
SERIALSRC=serial_unix.cpp
ETHERSRC=../dummy/ether_dummy.cpp
SCSISRC=../dummy/scsi_dummy.cpp
AUDIOSRC=../dummy/audio_dummy.cpp
EXTFSSRC=extfs_unix.cpp
EXTRASYSSRCS=
case "$target_os" in
linux*)
ETHERSRC=Linux/ether_linux.cpp
AUDIOSRC=audio_oss_esd.cpp
SCSISRC=Linux/scsi_linux.cpp
if [[ "x$EMULATED_PPC" = "xno" ]]; then
EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
fi
;;
darwin*)
if [[ "x$EMULATED_PPC" = "xno" ]]; then
EXTRASYSSRCS="Darwin/paranoia.cpp Linux/asm_linux.S"
fi
if [[ "x$ac_cv_framework_IOKit" = "xyes" ]]; then
EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/sys_darwin.cpp"
fi
if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
EXTFSSRC=../MacOSX/extfs_macosx.mm
fi
;;
cygwin*)
SERIALSRC="../dummy/serial_dummy.cpp"
;;
esac
dnl SDL overrides
if [[ "x$WANT_SDL" = "xyes" ]]; then
AC_DEFINE(USE_SDL, 1, [Define to enble SDL support.])
fi
if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then
AC_DEFINE(USE_SDL_VIDEO, 1, [Define to enable SDL video graphics support.])
VIDEOSRCS="../SDL/video_sdl.cpp"
KEYCODES="../SDL/keycodes"
if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then
EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp"
else
case "$target_os" in
cygwin*)
EXTRASYSSRCS="$EXTRASYSSRCS ../Windows/clip_windows.cpp"
;;
*)
EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp"
;;
esac
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"
fi
SYSSRCS="$VIDEOSRCS $EXTFSSRC $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, $3)
fi
])
dnl Check that the host supports TUN/TAP devices
AC_CACHE_CHECK([whether TUN/TAP is supported],
ac_cv_tun_tap_support, [
AC_TRY_COMPILE([
#if defined(HAVE_LINUX_IF_H) && defined(HAVE_LINUX_IF_TUN_H)
#include <linux/if.h>
#include <linux/if_tun.h>
#endif
#if defined(HAVE_NET_IF_H) && defined(HAVE_NET_IF_TUN_H)
#include <net/if.h>
#include <net/if_tun.h>
#endif
], [
struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
],
ac_cv_tun_tap_support=yes, ac_cv_tun_tap_support=no
)
])
AC_TRANSLATE_DEFINE(ENABLE_TUNTAP, "$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 "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",
[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 "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, "$ac_cv_mmap_anon",
[Define if <sys/mman.h> defines MAP_ANON and mmap()'ing with MAP_ANON works.])
AC_CACHE_CHECK([whether mmap supports MAP_ANONYMOUS],
ac_cv_mmap_anonymous, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_MMAP_ANONYMOUS
#define CONFIGURE_TEST_VM_MAP
#define TEST_VM_MMAP_ANON
#include "vm_alloc.cpp"
], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
dnl When cross-compiling, do not assume anything.
ac_cv_mmap_anonymous="guessing no"
)
AC_LANG_RESTORE
]
)
AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$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_$test_def
#include "vm_alloc.cpp"
], ac_cv_mprotect_works=no, rm -f core,
dnl When cross-compiling, do not assume anything
ac_cv_mprotect_works="guessing no"
)
done
AC_TRY_RUN([
#define CONFIGURE_TEST_VM_MAP
#define TEST_VM_PROT_RDWR_WRITE
#include "vm_alloc.cpp"
], , ac_cv_mprotect_works=no,
dnl When cross-compiling, do not assume anything
ac_cv_mprotect_works="guessing no"
)
AC_LANG_RESTORE
]
)
dnl Remove support for mmap() if mprotect() does not work
if [[ "x$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, $have_mmap_vm,
[Define if your system has a working mmap()-based memory allocator.])
fi dnl HAVE_MMAP_VM
dnl Check if we can modify the __PAGEZERO segment for use as Low Memory
AC_CACHE_CHECK([whether __PAGEZERO can be Low Memory area 0x0000-0x3000],
ac_cv_pagezero_hack, [
ac_cv_pagezero_hack=no
if AC_TRY_COMMAND([Darwin/testlmem.sh 0x3000]); then
ac_cv_pagezero_hack=yes
dnl might as well skip the test for mmap-able low memory
ac_cv_can_map_lm=no
fi
])
AC_TRANSLATE_DEFINE(PAGEZERO_HACK, "$ac_cv_pagezero_hack",
[Define if the __PAGEZERO Mach-O Low Memory Globals hack works on this system.])
dnl Check if we can mmap 0x3000 bytes from 0x0000
AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x3000],
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 = 0;
if (vm_init() < 0) exit(1);
if (vm_acquire_fixed(0, 0x2000) < 0) 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, "$ac_cv_signal_need_reinstall",
[Define if your system requires signals to be reinstalled.])
dnl Check if sigaction handlers need to be reinstalled
AC_CACHE_CHECK([whether sigaction handlers need to be reinstalled],
ac_cv_sigaction_need_reinstall, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#include <stdlib.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <signal.h>
static int handled_signal = 0;
RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
typedef RETSIGTYPE (*signal_handler)(int);
static signal_handler mysignal(int sig, signal_handler handler) {
struct sigaction old_sa;
struct sigaction new_sa;
new_sa.sa_handler = handler;
return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
}
int main(void) { /* returns 0 if signals need not to be reinstalled */
mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
exit(handled_signal == 2);
}
], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
dnl When cross-compiling, do not assume anything.
ac_cv_sigaction_need_reinstall="guessing yes"
)
AC_LANG_RESTORE
]
)
AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$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 "vm_alloc.cpp"
#include "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 "vm_alloc.cpp"
#include "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 "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
]
)
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 "$sigsegv_recovery" ]]; then
AC_CACHE_CHECK([whether we then have a subterfuge for your system],
ac_cv_have_sigcontext_hack, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_SIGCONTEXT_SUBTERFUGE 1
#define CONFIGURE_TEST_SIGSEGV_RECOVERY
#include "vm_alloc.cpp"
#include "sigsegv.cpp"
],
ac_cv_have_sigcontext_hack=yes,
ac_cv_have_sigcontext_hack=no,
dnl When cross-compiling, do not assume anything.
ac_cv_have_sigcontext_hack=no
)
AC_LANG_RESTORE
])
if [[ "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
sigsegv_recovery=sigcontext
fi
AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack",
[Define if we know a hack to replace siginfo_t->si_addr member.])
fi
dnl Check if we can ignore the fault (instruction skipping in SIGSEGV handler)
AC_CACHE_CHECK([whether we can skip instruction in SIGSEGV handler],
ac_cv_have_skip_instruction, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_SIGSEGV_SKIP_INSTRUCTION 1
#define CONFIGURE_TEST_SIGSEGV_RECOVERY
#include "vm_alloc.cpp"
#include "sigsegv.cpp"
], ac_cv_have_skip_instruction=yes, ac_cv_have_skip_instruction=no,
dnl When cross-compiling, do not assume anything.
ac_cv_have_skip_instruction=no
)
AC_LANG_RESTORE
]
)
AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$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$CAN_VOSF" = "xyes" ]]; then
AC_DEFINE(ENABLE_VOSF, 1, [Define if using video enabled on SEGV signals.])
else
WANT_VOSF=no
fi
dnl Check addressing mode to use
AC_MSG_CHECKING([for addressing mode to use])
case "$os_target" in
cygwin*)
WANT_ADDRESSING_MODE="direct,cygwin-hack"
NATMEM_OFFSET=
;;
esac
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.$ac_ext << EOF
#include <stdio.h>
#include <string.h>
#include "vm_alloc.cpp"
int main(void)
{
if (vm_init() < 0)
return 1;
static const struct {
unsigned long base;
unsigned int size;
} ranges[[]] = {
{ 0x00000000, 0x0003000 },
{ 0x10000000, 0x2000000 },
{ 0x40800000, 0x0400000 },
{ 0x68070000, 0x0010000 },
{ 0x69000000, 0x0080000 },
{ 0x68ffe000, 0x0002000 },
{ 0x5fffe000, 0x0002000 },
{ 0x60000000, 0x0040000 },
};
const int n_ranges = sizeof(ranges)/ sizeof(ranges[[0]]);
#ifdef NATMEM_OFFSET
unsigned long ofs = NATMEM_OFFSET;
#else
for (unsigned long ofs = 0x10000000; ofs <= 0x90000000; ofs += 0x10000000)
#endif
for (int i = 0; i < n_ranges; i++) {
char *m = (char *)(ranges[[i]].base + ofs);
if (vm_acquire_fixed(m, ranges[[i]].size) != 0)
break;
memset(m, 0, ranges[[i]].size);
vm_release(m, ranges[[i]].size);
if (i == n_ranges - 1) {
printf("0x%08x\n", ofs);
return 0;
}
}
vm_exit();
return 1;
}
EOF
doit='$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, $NATMEM_OFFSET,
[Define constant offset for Mac address translation])
fi
fi
AC_MSG_RESULT($WANT_ADDRESSING_MODE)
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_EGREP_CPP(xyes,
[#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
xyes
#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(xyes,
[#if __GNUC__ >= 3
xyes
#endif
], [AC_MSG_RESULT(yes); HAVE_GCC30=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([whether the compiler can generate ELF 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
;;
*)
ac_cv_object_format=unknown
;;
esac
fi
rm -rf conftest*
])
dnl CPU emulator sources
if [[ "x$EMULATED_PPC" = "xyes" ]]; then
CPUSRCS="\
../kpx_cpu/src/mathlib/ieeefp.cpp \
../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
../kpx_cpu/src/cpu/ppc/ppc-translate.cpp"
CPPFLAGS="$CPPFLAGS -I../kpx_cpu/include -I../kpx_cpu/src"
dnl Enable JIT compiler, if possible
if [[ "x$WANT_JIT" = "xyes" ]]; then
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
;;
*:*)
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$HAVE_ICC" = "xno" ]]; then
DYNGEN_CC=$CXX
else
for p in /usr/bin /usr/local/bin; do
gxx="$p/g++"
if [[ -x "$gxx" ]]; then
DYNGEN_CC="$gxx"
fi
done
fi
fi
if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include <limits>' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then
ac_cv_use_dyngen=no
fi
])
if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
case $host_cpu in
i?86)
DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
if [[ "x$HAVE_GCC30" = "xyes" ]]; then
DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
else
DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
fi
saved_CPPFLAGS=$CPPFLAGS
CPPFLAGS="$CPPFLAGS -mmmx"
AC_CHECK_HEADERS(mmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -mmmx"])
CPPFLAGS="$CPPFLAGS -msse"
AC_CHECK_HEADERS(xmmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse"])
CPPFLAGS="$CPPFLAGS -msse2"
AC_CHECK_HEADERS(emmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse2"])
CPPFLAGS=$saved_CPPFLAGS
;;
x86_64)
AC_CHECK_HEADERS(mmintrin.h xmmintrin.h emmintrin.h)
;;
esac
DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000"
if [[ "x$HAVE_GCC30" = "xyes" ]]; then
DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
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 $CPUSRCS"
fi
fi
CPUSRCS="$CPUSRCS ../kpx_cpu/sheepshaver_glue.cpp"
else
WANT_JIT=no
fi
if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
AC_CACHE_CHECK([whether static data regions are executable],
ac_cv_have_static_data_exec, [
AC_TRY_RUN([int main(void) {
#if defined(__powerpc__)
static unsigned int p[8] = {0x4e800020,};
asm volatile("dcbst 0,%0" : : "r" (p) : "memory");
asm volatile("sync" : : : "memory");
asm volatile("icbi 0,%0" : : "r" (p) : "memory");
asm volatile("sync" : : : "memory");
asm volatile("isync" : : : "memory");
((void (*)(void))p)();
return 0;
#endif
return 1;
}], ac_cv_have_static_data_exec=yes, ac_cv_have_static_data_exec=no,
dnl When cross-compiling, do not assume anything.
ac_cv_have_static_data_exec=no
)
])
fi
AC_TRANSLATE_DEFINE(HAVE_STATIC_DATA_EXEC, "$ac_cv_have_static_data_exec",
[Define if your system marks static data pages as executable.])
if [[ "x$WANT_JIT" = "xyes" ]]; then
CPPFLAGS="$CPPFLAGS -DUSE_JIT"
fi
dnl Generate Makefile.
AC_SUBST(DYNGENSRCS)
AC_SUBST(DYNGEN_CC)
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 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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