Add valgrind support

Teach valgrind about apr pools, allocators, and bucket allocators
if --with-valgrind is passed to configure.

This has less impact on program behavior and performance than compiling
with complete pool-debugging. Even with valgrind support compiled in,
the performance impact if not running under valgrind should be minimal. 

It may make sense to use pool-debugging together with valgrind support
because pool-debugging does not help with allocators and bucket
allocators.



git-svn-id: http://svn.apache.org/repos/asf/apr/apr/trunk@1438957 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 16 insertions, 0 deletions

diff --git a/configure.in b/configure.in
index 84ba990c1..914616846 100644
--- a/configure.in
+++ b/configure.in
@@ -839,6 +839,22 @@ AC_ARG_WITH(efence,
                  [ AC_MSG_ERROR(Electric Fence requested but not detected) ])
   ])
 
+AC_ARG_WITH(valgrind,
+  [  --with-valgrind[[=DIR]]   Enable code to teach valgrind about apr pools
+                          (optionally: set path to valgrind headers) ],
+  [ if test "$withval" != no; then
+      if test "$withval" = yes; then
+        withval=/usr/include/valgrind
+      fi
+      APR_ADDTO(CPPFLAGS, -I$withval)
+      AC_CHECK_HEADERS(valgrind.h memcheck.h)
+      APR_IFALLYES(header:valgrind.h header:memcheck.h,
+        [AC_DEFINE(HAVE_VALGRIND, 1, [Compile in valgrind support]) ],
+        [AC_MSG_ERROR(valgrind headers not found) ]
+      )
+    fi ]
+)
+
 AC_CHECK_FUNCS(sigsuspend, [ have_sigsuspend="1" ], [ have_sigsuspend="0" ])
 AC_CHECK_FUNCS(sigwait, [ have_sigwait="1" ], [ have_sigwait="0" ]) 
 dnl AC_CHECK_FUNCS doesn't work for this on Tru64 since the function