diff options
Diffstat (limited to 'autoconf/ast_ext_lib.m4')
-rw-r--r-- | autoconf/ast_ext_lib.m4 | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/autoconf/ast_ext_lib.m4 b/autoconf/ast_ext_lib.m4 new file mode 100644 index 000000000..57d83a5d1 --- /dev/null +++ b/autoconf/ast_ext_lib.m4 @@ -0,0 +1,90 @@ +# Helper function to setup variables for a package. +# $1 -> the package name. Used in configure.ac and also as a prefix +# for the variables ($1_DIR, $1_INCLUDE, $1_LIB) in makeopts +# $3 -> option name, used in --with-$3 or --without-$3 when calling configure. +# $2 and $4 are just text describing the package (short and long form) + +# AST_EXT_LIB_SETUP([package], [short description], [configure option name], [long description]) + +AC_DEFUN([AST_EXT_LIB_SETUP], +[ + $1_DESCRIP="$2" + $1_OPTION="$3" + AC_ARG_WITH([$3], AC_HELP_STRING([--with-$3=PATH],[use $2 files in PATH $4]), + [ + case ${withval} in + n|no) + USE_$1=no + ;; + y|ye|yes) + ac_mandatory_list="${ac_mandatory_list} $1" + ;; + *) + $1_DIR="${withval}" + ac_mandatory_list="${ac_mandatory_list} $1" + ;; + esac + ]) + PBX_$1=0 + AC_SUBST([$1_LIB]) + AC_SUBST([$1_INCLUDE]) + AC_SUBST([$1_DIR]) + AC_SUBST([PBX_$1]) +]) + +# Check for existence of a given package ($1), either looking up a function +# in a library, or, if no function is supplied, only check for the +# existence of the header files. + +# AST_EXT_LIB_CHECK([package], [library], [function], [header], +# [extra libs], [extra cflags], [version]) +AC_DEFUN([AST_EXT_LIB_CHECK], +[ +if test "x${PBX_$1}" != "x1" -a "${USE_$1}" != "no"; then + pbxlibdir="" + # if --with-$1=DIR has been specified, use it. + if test "x${$1_DIR}" != "x"; then + if test -d ${$1_DIR}/lib; then + pbxlibdir="-L${$1_DIR}/lib" + else + pbxlibdir="-L${$1_DIR}" + fi + fi + pbxfuncname="$3" + if test "x${pbxfuncname}" = "x" ; then # empty lib, assume only headers + AST_$1_FOUND=yes + else + AC_CHECK_LIB([$2], [${pbxfuncname}], [AST_$1_FOUND=yes], [AST_$1_FOUND=no], ${pbxlibdir} $5) + fi + + # now check for the header. + if test "${AST_$1_FOUND}" = "yes"; then + $1_LIB="${pbxlibdir} -l$2 $5" + # if --with-$1=DIR has been specified, use it. + if test "x${$1_DIR}" != "x"; then + $1_INCLUDE="-I${$1_DIR}/include" + fi + $1_INCLUDE="${$1_INCLUDE} $6" + if test "x$4" = "x" ; then # no header, assume found + $1_HEADER_FOUND="1" + else # check for the header + saved_cppflags="${CPPFLAGS}" + CPPFLAGS="${CPPFLAGS} ${$1_INCLUDE}" + AC_CHECK_HEADER([$4], [$1_HEADER_FOUND=1], [$1_HEADER_FOUND=0]) + CPPFLAGS="${saved_cppflags}" + fi + if test "x${$1_HEADER_FOUND}" = "x0" ; then + $1_LIB="" + $1_INCLUDE="" + else + if test "x${pbxfuncname}" = "x" ; then # only checking headers -> no library + $1_LIB="" + fi + PBX_$1=1 + # XXX don't know how to evaluate the description (third argument) in AC_DEFINE_UNQUOTED + AC_DEFINE_UNQUOTED([HAVE_$1], 1, [Define this to indicate the ${$1_DESCRIP} library]) + AC_DEFINE_UNQUOTED([HAVE_$1_VERSION], [$7], [Define to indicate the ${$1_DESCRIP} library version]) + fi + fi +fi +]) |