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dnl ---------------------------------------------
dnl translate easy to remember target names into recognizable gnu variants and
dnl test the cross compilation platform and adjust default settings
AC_DEFUN([CODA_SETUP_BUILD],
[AC_SUBST(LIBTOOL_LDFLAGS)
case ${host_alias} in
djgpp | dos ) host_alias=i386-pc-msdos ; dosmmap=false ;;
win95 | win98 ) host_alias=i386-pc-msdos ; dosmmap=true ;;
cygwin* | winnt | nt ) host_alias=i386-pc-cygwin ;;
arm ) host_alias=arm-unknown-linux-gnuelf ;;
esac
AC_CANONICAL_HOST
dnl Shared libraries work for i386, mips, sparc, and alpha platforms. They
dnl might work for all platforms. If not, read the PORTING document.
dnl When cross-compiling, pick the right compiler toolchain.
dnl Can be overridden by providing the CROSS_COMPILE environment variable.
if test ${cross_compiling} = yes ; then
dnl We have to override some things the configure script tends to
dnl get wrong as it tests the build platform feature
ac_cv_func_mmap_fixed_mapped=yes
case ${host} in
i*86-pc-msdos )
dnl no shared libs for dos
enable_shared=no
if ${dosmmap} ; then
CC="dos-gcc -bmmap"
CXX="dos-gcc -bmmap"
else
CC="dos-gcc -bw95"
CXX="dos-gcc -bw95"
fi
AR="dos-ar"
RANLIB="true"
AS="dos-as"
NM="dos-nm"
dnl avoid using mmap for allocating lwp stacks
ac_cv_func_mmap_fixed_mapped=no
;;
i*86-pc-cygwin )
dnl -D__CYGWIN32__ should be defined but sometimes isn't (wasn't?)
CC="gnuwin32gcc -D__CYGWIN32__"
CXX="gnuwin32g++"
AR="gnuwin32ar"
RANLIB="gnuwin32ranlib"
AS="gnuwin32as"
NM="gnuwin32nm"
DLLTOOL="gnuwin32dlltool"
OBJDUMP="gnuwin32objdump"
LDFLAGS="-L/usr/gnuwin32/lib"
dnl We need these to get a dll built
libtool_flags="--enable-win32-dll"
LIBTOOL_LDFLAGS="-no-undefined"
;;
arm-unknown-linux-gnuelf )
CROSS_COMPILE="arm-unknown-linuxelf-"
;;
esac
fi
if test "${CROSS_COMPILE}" ; then
CC=${CROSS_COMPILE}gcc
CXX=${CROSS_COMPILE}g++
CPP="${CC} -E"
AS=${CROSS_COMPILE}as
LD=${CROSS_COMPILE}ld
AR=${CROSS_COMPILE}ar
RANLIB=${CROSS_COMPILE}ranlib
NM=${CROSS_COMPILE}nm
OBJDUMP=${CROSS_COMPILE}objdump
DLLTOOL=${CROSS_COMPILE}dlltool
ac_cv_func_mmap_fixed_mapped=yes
fi
])
dnl ---------------------------------------------
dnl Define library version
AC_SUBST(LIBTOOL_VERSION)
AC_SUBST(MAJOR_VERSION)
AC_SUBST(LINUX_VERSION)
AC_SUBST(DLL_VERSION)
AC_SUBST(FREEBSD_VERSION)
AC_SUBST(GENERIC_VERSION)
AC_DEFUN([CODA_LIBRARY_VERSION],
[LIBTOOL_VERSION="$2:$1:$3"; major=`expr $2 - $3`
MAJOR_VERSION="$major"
LINUX_VERSION="$major.$3.$1"
DLL_VERSION="$major-$3-$1"
FREEBSD_VERSION="$2"
GENERIC_VERSION="$2.$1"])
AC_DEFUN([CODA_CHECK_MAKECONTEXT],
[AC_MSG_CHECKING(if makecontext correctly passes stack pointers)
makecontext=no
AC_TRY_RUN([
#if STDC_HEADERS
#include <stdlib.h>
#endif
#ifdef HAVE_UCONTEXT_H
#include <ucontext.h>
#endif
void *ptr;
void test(void *arg) { exit(ptr != arg); }
int main(int argc, char **argv) {
#ifdef HAVE_UCONTEXT_H
ucontext_t x;
int arg = 0;
ptr = &arg;
getcontext(&x);
x.uc_stack.ss_sp = malloc(16384);
x.uc_stack.ss_size = 16384;
makecontext(&x, (void (*)(void))test, 1, &arg);
setcontext(&x);
#endif
exit(2);
}], [AC_DEFINE(CODA_USE_UCONTEXT, 1,
[makecontext correctly passes stack pointers])
makecontext=yes])
AC_MSG_RESULT($makecontext)])
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