Merged revisions 246030 via svnmerge from

https://origsvn.digium.com/svn/asterisk/trunk

........
  r246030 | tilghman | 2010-02-10 10:01:28 -0600 (Wed, 10 Feb 2010) | 12 lines
  
  Solaris doesn't like outputting a NULL to a %s in format strings.
  
  Detect all platforms that don't like that, either, and ensure that when documentation is
  missing, we pass a non-NULL pointer when outputting the corresponding documentation.
  
  (closes issue #16689)
   Reported by: bklang
   Patches: 
         20100209__issue16689__with_tests.diff.txt uploaded by tilghman (license 14)
   
  Review: https://reviewboard.asterisk.org/r/497/
........


git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.6.2@246199 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 66 insertions, 1 deletions

diff --git a/configure b/configure
index b5216ef18..60d545d5f 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac Revision: 242889 .
+# From configure.ac Revision: 242974 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for asterisk 1.6.
 #
@@ -18096,6 +18096,71 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
       conftest$ac_exeext conftest.$ac_ext
 
+# glibc, AFAIK, is the only C library that makes printing a NULL to a string safe.
+{ echo "$as_me:$LINENO: checking if your system printf is NULL-safe." >&5
+echo $ECHO_N "checking if your system printf is NULL-safe.... $ECHO_C" >&6; }
+if test "$cross_compiling" = yes; then
+  # It's unlikely an embedded system will have this.
+	{ echo "$as_me:$LINENO: result: unknown" >&5
+echo "${ECHO_T}unknown" >&6; }
+
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+printf("%s", NULL)
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_NULLSAFE_PRINTF 1
+_ACEOF
+
+	{ echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+{ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+
+
+
 
 { echo "$as_me:$LINENO: checking for compiler 'attribute pure' support" >&5
 echo $ECHO_N "checking for compiler 'attribute pure' support... $ECHO_C" >&6; }