Imported Upstream version 0.19.7

[platform/upstream/gettext.git] / gettext-tools / gnulib-m4 / spawn_h.m4

diff --git a/gettext-tools/gnulib-m4/spawn_h.m4 b/gettext-tools/gnulib-m4/spawn_h.m4
index ba08c5d..593b2df 100644 (file)
--- a/gettext-tools/gnulib-m4/spawn_h.m4
+++ b/gettext-tools/gnulib-m4/spawn_h.m4
@@ -1,5 +1,5 @@
 # spawn_h.m4 serial 16
-dnl Copyright (C) 2008-2013 Free Software Foundation, Inc.
+dnl Copyright (C) 2008-2015 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -64,7 +64,15 @@ AC_DEFUN([gl_HAVE_POSIX_SPAWN],
   dnl once only, before all statements that occur in other macros.
   AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
 
-  AC_CHECK_FUNCS_ONCE([posix_spawn])
+  LIB_POSIX_SPAWN=
+  AC_SUBST([LIB_POSIX_SPAWN])
+  gl_saved_libs=$LIBS
+    AC_SEARCH_LIBS([posix_spawn], [rt],
+                   [test "$ac_cv_search_posix_spawn" = "none required" ||
+                    LIB_POSIX_SPAWN=$ac_cv_search_posix_spawn])
+    AC_CHECK_FUNCS([posix_spawn])
+  LIBS=$gl_saved_libs
+
   if test $ac_cv_func_posix_spawn != yes; then
     HAVE_POSIX_SPAWN=0
   fi