1 files changed, 34 insertions, 0 deletions
diff --git a/m4/libo_externals.m4 b/m4/libo_externals.m4
new file mode 100644
index 000000000..f755358bb
--- /dev/null
+++ b/m4/libo_externals.m4
@@ -0,0 +1,34 @@
+dnl -*- Mode: Autoconf; tab-width: 4; indent-tabs-mode: nil; fill-column: 102 -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+AC_DEFUN([libo_CHECK_SYSTEM_MODULE], [
+AC_ARG_WITH(system-$1,
+    AS_HELP_STRING([--with-system-$1],
+        [Use $1 from operating system instead of building and bundling it.]),,
+    [with_system_$1="$with_system_libs"])
+AC_MSG_CHECKING([which $1 to use])
+if test "$with_system_$1" = "yes"; then
+    AC_MSG_RESULT([external])
+    SYSTEM_$2=TRUE
+    PKG_CHECK_MODULES([$2], [$3])
+    $2_CFLAGS=$(printf '%s' "${$2_CFLAGS}" | sed -e "s/-I/${ISYSTEM?}/g")
+    FilterLibs "${$2_LIBS}"
+    $2_LIBS="$filteredlibs"
+else
+    AC_MSG_RESULT([internal])
+    SYSTEM_$2=
+    $2_CFLAGS=$4
+    $2_LIBS=$5
+    BUILD_TYPE="$BUILD_TYPE $2"
+fi
+AC_SUBST([SYSTEM_$2])
+AC_SUBST([$2_CFLAGS])
+AC_SUBST([$2_LIBS])
+])
+
+dnl vim:set shiftwidth=4 softtabstop=4 expandtab: