libdb/dist/aclocal/sosuffix.m4

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Text

# $Id$
# Determine shared object suffixes.
#
# Our method is to use the libtool variable $library_names_spec,
# set by using AC_PROG_LIBTOOL. This variable is a snippet of shell
# defined in terms of $versuffix, $release, $libname and $module
# We want to eval it and grab the suffix used for shared objects.
# By setting $module to yes/no, we obtain the suffixes
# used to create dlloadable, or java loadable modules.
# On many (*nix) systems, these all evaluate to .so, but there
# are some notable exceptions.
# Before calling this macro, libtool must have been configured.
# This macro is used internally to discover the suffix for the current
# settings of $module. The result is stored in $_SOSUFFIX.
AC_DEFUN(_SOSUFFIX_INTERNAL, [
versuffix=""
release=""
libname=libfoo
eval _SOSUFFIX=\"$shrext_cmds\"
if test "$_SOSUFFIX" = "" ; then
_SOSUFFIX=".so"
if test "$enable_shared" != "yes"; then
if test "$_SOSUFFIX_MESSAGE" = ""; then
_SOSUFFIX_MESSAGE=yes
AC_MSG_WARN([libtool may not know about this architecture.])
AC_MSG_WARN([assuming $_SOSUFFIX suffix for dynamic libraries.])
fi
fi
fi
])
# SOSUFFIX_CONFIG will set the variable SOSUFFIX to be the
# shared library extension used for general linking, not dlopen.
AC_DEFUN(SOSUFFIX_CONFIG, [
AC_MSG_CHECKING([SOSUFFIX from libtool])
module=no
_SOSUFFIX_INTERNAL
SOSUFFIX=$_SOSUFFIX
AC_MSG_RESULT($SOSUFFIX)
AC_SUBST(SOSUFFIX)
])
# MODSUFFIX_CONFIG will set the variable MODSUFFIX to be the
# shared library extension used for dlopen'ed modules.
# To discover this, we set $module, simulating libtool's -module option.
AC_DEFUN(MODSUFFIX_CONFIG, [
AC_MSG_CHECKING([MODSUFFIX from libtool])
module=yes
_SOSUFFIX_INTERNAL
MODSUFFIX=$_SOSUFFIX
AC_MSG_RESULT($MODSUFFIX)
AC_SUBST(MODSUFFIX)
])
# JMODSUFFIX_CONFIG will set the variable JMODSUFFIX to be the
# shared library extension used JNI modules opened by Java.
# To discover this, we set $jnimodule, simulating libtool's -shrext option.
##########################################################################
# Robert Boehne: Not much point in this macro any more because apparently
# Darwin is the only OS that wants or needs the .jnilib extension.
##########################################################################
AC_DEFUN(JMODSUFFIX_CONFIG, [
AC_MSG_CHECKING([JMODSUFFIX from libtool])
module=yes
_SOSUFFIX_INTERNAL
if test `uname` = "Darwin"; then
JMODSUFFIX=".jnilib"
else
JMODSUFFIX=$_SOSUFFIX
fi
AC_MSG_RESULT($JMODSUFFIX)
AC_SUBST(JMODSUFFIX)
])