--- systemd-185.orig/configure.ac	2012-06-04 14:15:16.000000000 -0400
+++ systemd-pam-185/configure.ac	2012-06-21 22:57:10.000000000 -0400
@@ -63,6 +63,23 @@
 
 AC_PATH_PROG([M4], [m4])
 
+# check for few functions not implemented in uClibc
+
+AC_CHECK_FUNCS_ONCE(mkostemp execvpe posix_fallocate)
+
+# check for %ms format support - assume always no if cross compiling
+
+AC_MSG_CHECKING([whether %ms format is supported by *scanf])
+
+AC_RUN_IFELSE(
+	[AC_LANG_PROGRAM([[ include <stdio.h> ]],
+			[[ char *buf1, *buf2, *buf3, str="1 2.3 abcde" ;
+			   int rc = sscanf(str, "%ms %ms %ms", &buf1, &buf2, &buf3) ;
+			   return (rc==3)?0:1;]])],
+	[AC_DEFINE([HAVE_MSFORMAT], [1], [Define if %ms format is supported by *scanf.])],
+	[AC_MSG_RESULT([no])],
+	[AC_MSG_RESULT([no])])
+
 # gtkdocize greps for '^GTK_DOC_CHECK', so it needs to be on its own line
 m4_ifdef([GTK_DOC_CHECK], [
 GTK_DOC_CHECK([1.18],[--flavour no-tmpl])
