configure.ac: add some missing quotes

to fix error messages when apache wasn't installed

diff --git a/configure.ac b/configure.ac
index 4a8df37..48ff401 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -289,9 +289,9 @@ else
         MISSING_REGRESSION_TEST_PACKAGES="$MISSING_REGRESSION_TEST_PACKAGES mod_ssl"
     fi
 fi
-AM_CONDITIONAL(HAVE_APACHE, test $have_apache = 1)
-AM_CONDITIONAL(HAVE_APACHE_2_2, test $apache_version = 2.2)
-AM_CONDITIONAL(HAVE_APACHE_2_4, test $apache_version = 2.4)
+AM_CONDITIONAL(HAVE_APACHE, test "$have_apache" = 1)
+AM_CONDITIONAL(HAVE_APACHE_2_2, test "$apache_version" = 2.2)
+AM_CONDITIONAL(HAVE_APACHE_2_4, test "$apache_version" = 2.4)
 
 if test "$have_apache" = 1; then
     AC_CHECK_PROGS(PHP, php php5)