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Bug #41455 ext/dba/config.m4 pollutes global $LIBS and $LDFLAGS
Submitted: 2007-05-21 11:17 UTC Modified: 2007-05-21 11:39 UTC
From: mmarek at suse dot cz Assigned:
Status: Closed Package: *Compile Issues
PHP Version: 5.2.2 OS: Linux
Private report: No CVE-ID:
 [2007-05-21 11:17 UTC] mmarek at suse dot cz
Description:
------------
--enable-dba=shared --with-db4=... causes the main php binary be linked against libdb-4.x. It's because the test in ext/dba/config.m4 fails to reset $LIBS and $LDFLAGS. I'll attach a patch.

Reproduce code:
---------------
compile with the above options

Expected result:
----------------
the cli binary / apache module not linked against libdb-4.x

Actual result:
--------------
ldd -u -r /usr/bin/php5
 Unused direct dependencies:
         /usr/lib64/libdb-4.4.so
         /lib64/libnsl.so.1
         /lib64/libz.so.1

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 [2007-05-21 11:20 UTC] mmarek at suse dot cz
Where can I attach a file? :)

Hopefully the lines won't wrap:

breaking out of the for loop right after the link test leaves $LIBS and
$LDFLAGS with their temporary values
--- ext/dba/config.m4.orig
+++ ext/dba/config.m4
@@ -172,6 +172,7 @@ dnl parameters(version, library list, fu
 AC_DEFUN([PHP_DBA_DB_CHECK],[
   for LIB in $2; do
     if test -f $THIS_PREFIX/$PHP_LIBDIR/lib$LIB.a || test -f $THIS_PREFIX/$PHP_LIBDIR/lib$LIB.$SHLIB_SUFFIX_NAME; then
+      unset PHP_DBA_DB_CHECK_found_it
       PHP_TEMP_LDFLAGS(-L$THIS_PREFIX/$PHP_LIBDIR, -l$LIB,[
         AC_TRY_LINK([
 #include "$THIS_INCLUDE"
@@ -185,10 +186,14 @@ AC_DEFUN([PHP_DBA_DB_CHECK],[
 #endif
           ],[
             THIS_LIBS=$LIB
-            break
+            PHP_DBA_DB_CHECK_found_it=1
           ])
         ])
       ])
+      if test -n "$PHP_DBA_DB_CHECK_found_it"; then
+        unset PHP_DBA_DB_CHECK_found_it
+        break
+      fi
     fi
   done
   if test -z "$THIS_LIBS"; then
 [2007-05-21 11:39 UTC] tony2001@php.net
This bug has been fixed in CVS.

Snapshots of the sources are packaged every three hours; this change
will be in the next snapshot. You can grab the snapshot at
http://snaps.php.net/.
 
Thank you for the report, and for helping us make PHP better.

Committed your patch with slight modification.
 
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