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Solaris doesn't like outputting a NULL to a %s in format strings.

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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: https://origsvn.digium.com/svn/asterisk/trunk@246030 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2010-02-10 16:01:28 +00:00
parent eaea15aa02
commit c8abb42e6a
4 changed files with 139 additions and 9 deletions
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67
configure vendored
View File

@@ -1,5 +1,5 @@
#! /bin/sh
# From configure.ac Revision: 242857 .
# From configure.ac Revision: 242967 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.61 for asterisk 1.6.
#
@@ -18648,6 +18648,71 @@ 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; }