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|
fi
FOUND=1
break
fi
done
])
dnl Usage:
dnl DC_TEST_SHOBJFLAGS(shobjflags, shobjldflags, action-if-not-found)
dnl
AC_DEFUN(DC_TEST_SHOBJFLAGS, [
AC_SUBST(SHOBJFLAGS)
AC_SUBST(SHOBJLDFLAGS)
OLD_LDFLAGS="$LDFLAGS"
SHOBJFLAGS=""
LDFLAGS="$OLD_LDFLAGS $1 $2"
AC_TRY_LINK([#include <stdio.h>
int unrestst(void);], [ printf("okay\n"); unrestst(); return(0); ], [ SHOBJFLAGS="$1"; SHOBJLDFLAGS="$2" ], [
LDFLAGS="$OLD_LDFLAGS"
$3
])
LDFLAGS="$OLD_LDFLAGS"
])
AC_DEFUN(DC_GET_SHOBJFLAGS, [
AC_SUBST(SHOBJFLAGS)
AC_SUBST(SHOBJLDFLAGS)
AC_MSG_CHECKING(how to create shared objects)
if test -z "$SHOBJFLAGS" -a -z "$SHOBJLDFLAGS"; then
DC_TEST_SHOBJFLAGS([-fPIC -DPIC], [-shared -rdynamic], [
DC_TEST_SHOBJFLAGS([-fPIC -DPIC], [-shared], [
DC_TEST_SHOBJFLAGS([-fPIC -DPIC], [-shared -rdynamic -mimpure-text], [
DC_TEST_SHOBJFLAGS([-fPIC -DPIC], [-shared -mimpure-text], [
DC_TEST_SHOBJFLAGS([-fPIC -DPIC], [-shared -rdynamic -Wl,-G,-z,textoff], [
DC_TEST_SHOBJFLAGS([-fPIC -DPIC], [-shared -Wl,-G,-z,textoff], [
DC_TEST_SHOBJFLAGS([-fPIC -DPIC], [-shared -dynamiclib -flat_namespace -undefined suppress -bind_at_load], [
DC_TEST_SHOBJFLAGS([-fPIC -DPIC], [-dynamiclib -flat_namespace -undefined suppress -bind_at_load], [
DC_TEST_SHOBJFLAGS([-fPIC -DPIC], [-Wl,-dynamiclib -Wl,-flat_namespace -Wl,-undefined,suppress -Wl,-bind_at_load], [
DC_TEST_SHOBJFLAGS([-fPIC -DPIC], [-dynamiclib -flat_namespace -undefined suppress], [
DC_TEST_SHOBJFLAGS([-fPIC -DPIC], [-dynamiclib], [
AC_MSG_RESULT(cant)
AC_MSG_ERROR([We are unable to make shared objects.])
])
])
])
])
])
])
])
])
])
])
])
fi
AC_MSG_RESULT($SHOBJLDFLAGS $SHOBJFLAGS)
DC_SYNC_SHLIBOBJS
])
AC_DEFUN(DC_SYNC_SHLIBOBJS, [
AC_SUBST(SHLIBOBJS)
SHLIBOBJS=""
for obj in $LIB@&t@OBJS; do
SHLIBOBJS="$SHLIBOBJS `echo $obj | sed 's/\.o$/_shr.o/g'`"
done
])
AC_DEFUN(DC_CHK_OS_INFO, [
AC_CANONICAL_HOST
AC_SUBST(SHOBJEXT)
AC_SUBST(SHOBJFLAGS)
AC_SUBST(SHOBJLDFLAGS)
AC_SUBST(CFLAGS)
AC_SUBST(CPPFLAGS)
AC_SUBST(AREXT)
AC_MSG_CHECKING(host operating system)
AC_MSG_RESULT($host_os)
SHOBJEXT="so"
AREXT="a"
case $host_os in
darwin*)
SHOBJEXT="dylib"
;;
hpux*)
SHOBJEXT="sl"
;;
mingw32|mingw32msvc*)
SHOBJEXT="dll"
SHOBJFLAGS="-DPIC"
CFLAGS="$CFLAGS -mms-bitfields"
CPPFLAGS="$CPPFLAGS -mms-bitfields"
SHOBJLDFLAGS='-shared -Wl,--dll -Wl,--enable-auto-image-base -Wl,--output-def,$[@].def,--out-implib,$[@].a'
;;
cygwin*)
SHOBJEXT="dll"
SHOBJFLAGS="-fPIC -DPIC"
CFLAGS="$CFLAGS -mms-bitfields"
CPPFLAGS="$CPPFLAGS -mms-bitfields"
SHOBJLDFLAGS='-shared -Wl,--enable-auto-image-base -Wl,--output-def,$[@].def,--out-implib,$[@].a'
;;
esac
])
AC_DEFUN(DC_ASK_OPTLIB, [
AC_ARG_WITH($5, [ --with-$5 $4], [
# Specified
LIBSPEC=$withval
], [
# Not specified
LIBSPECFLAGS=`pkg-config --libs $5 2>/dev/null`
LIBSPECCFLAGS=`pkg-config --cflags $5 2>/dev/null`
AC_CHECK_LIB($1, $2, [
OLDCPPFLAGS="$CPPFLAGS"
OLDCFLAGS="$CFLAGS"
CPPFLAGS="$CPPFLAGS $LIBSPECCFLAGS"
CFLAGS="$CFLAGS $LIBSPECCFLAGS"
AC_CHECK_HEADER($3, [
LIBSPEC=yes
], [
LIBSPEC=no
])
CPPFLAGS="$OLDCPPFLAGS"
CFLAGS="$OLDCFLAGS"
], [
LIBSPEC=no
AC_MSG_WARN(Didn't find $5)
], $LIBSPECFLAGS)
])
case $LIBSPEC in
no)
AC_MSG_WARN(Support for $5 disabled)
;;
*)
if test "${LIBSPEC}" = "yes"; then
true
else
LIBSPECFLAGS="-L${LIBSPEC}/lib ${LIBSPECFLAGS}"
LIBSPECCFLAGS="-I${LIBSPEC}/include ${LIBSPECCFLAGS}"
fi
AC_CHECK_LIB($1, $2, [
OLDCFLAGS="$CFLAGS"
OLDCPPFLAGS="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS ${LIBSPECCFLAGS}"
CFLAGS="$CFLAGS ${LIBSPECCFLAGS}"
AC_CHECK_HEADER($3, [
if test -n "$7"; then
AC_DEFINE($7, [1], [Define to 1 if you have the <$3> header file.])
fi
if test -n "$6"; then
AC_DEFINE($6, [1], [Define to 1 if you have $2 from $5])
fi
LDFLAGS="$LDFLAGS $LIBSPECFLAGS"
LIBS="-l$1 $LIBS"
], [
CFLAGS="$OLDCFLAGS"
CPPFLAGS="$OLDCPPFLAGS"
AC_MSG_ERROR(Could not find $3)
])
], [
AC_MSG_ERROR(Could not find $5)
], $LIBSPECFLAGS)
;;
esac
])
|