* configure.in: Disallow use of bundled APR with external APR-util, or

bundled APR-util with external APR, another cause of the dreaded
PR21718.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@170029 13f79535-47bb-0310-9956-ffa450edef68

diff --git a/configure.in b/configure.in
index 422d59d7470a4d1560b35587efb2354b9c0e91c7..c7e43e9a32dbab84d47adc16f333697791da1c53 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -95,6 +95,16 @@ if test "$apu_found" = "no"; then
   AC_MSG_ERROR([APR-util not found.  Please read the documentation.])
 fi
 
+# Catch some misconfigurations:
+case ${apr_found}.${apu_found} in
+reconfig.yes)
+  AC_MSG_ERROR([Cannot use an external APR-util with the bundled APR])
+  ;;
+yes.reconfig)
+  AC_MSG_ERROR([Cannot use an external APR with the bundled APR-util])
+  ;;
+esac  
+
 if test "$apu_found" = "reconfig"; then
   APR_SUBDIR_CONFIG(srclib/apr-util,
                     [--with-apr=../apr --prefix=$prefix --exec-prefix=$exec_prefix --libdir=$libdir --includedir=$includedir --bindir=$bindir],