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[PATCH]Correct approach to detect the presence of apr_hash_clear in apr

From: Kamesh Jayachandran <kamesh_at_collab.net>
Date: 2006-09-21 09:04:41 CEST

Hi All,
Find the attached patch and log which in my opinion a correct way to
detect apr_hash_clear in an available apr.
Tested the same in apr-0.9.7 and apr-1.3.0.

With regards
Kamesh Jayachandran

Patch by: Kamesh Jayachandran <kamesh@collab.net>

Follow up to 'compile failures with versions of APR older than 1.3.0'
caused by r21561.

* subversion/libsvn_subr/hash.c
  Including svn_private_config.h.
  (svn_hash_clear): use 'configure' detected 'HAVE_APR_HASH_FUNC' to decide
   about the availability of 'apr_hash_clear'.
* build/ac-macros/apr.m4
  (SVN_LIB_APR): Check for 'apr_hash_clear', if available set

Index: subversion/libsvn_subr/hash.c
--- subversion/libsvn_subr/hash.c (revision 21583)
+++ subversion/libsvn_subr/hash.c (working copy)
@@ -32,6 +32,7 @@
 #include "svn_sorts.h"
 #include "svn_io.h"
 #include "svn_pools.h"
+#include "svn_private_config.h"
@@ -437,9 +438,7 @@
 svn_error_t *
 svn_hash_clear(apr_hash_t *hash)
-/* The APR_VERSION_AT_LEAST() macro is new in APR 1.3.0, which also
- happens to be the minimum version we require. */
-#ifdef APR_VERSION_AT_LEAST /* 1.3.0 */
   apr_hash_index_t *hi;
Index: build/ac-macros/apr.m4
--- build/ac-macros/apr.m4 (revision 21583)
+++ build/ac-macros/apr.m4 (working copy)
@@ -59,6 +59,12 @@
     AC_MSG_ERROR([apr-config --cflags failed])
+ LDFLAGS="$LDFLAGS `$apr_config --link-ld`"
+ [Define if we have apr_hash_clear in apr]))
+ dnl Actual LDFLAGS
   LDFLAGS="$LDFLAGS `$apr_config --ldflags`"
   if test $? -ne 0; then
     AC_MSG_ERROR([apr-config --ldflags failed])

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Received on Thu Sep 21 09:04:24 2006

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