configure: Prefixed cache-ids in AC_CACHE_CHECK with "c_cv_".

autoconf requires the string "_cv_" to be present in cache-ids.

This patch adds/changes `have_broken_perl_load_module' which was added
after 4.5.

diff --git a/configure.in b/configure.in
index 07d71d8bd3b62340102267b9309f157bdf80f921..3514572e5b59e21ec50912319d8db7ae3d9d0093 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -1880,7 +1880,7 @@ then
        LDFLAGS=$SAVE_LDFLAGS
 fi
 
-have_broken_perl_load_module="no"
+c_cv_have_broken_perl_load_module="no"
 if test "x$with_libperl" = "xyes"
 then
        SAVE_CFLAGS=$CFLAGS
@@ -1891,7 +1891,7 @@ then
        LDFLAGS="$LDFLAGS $PERL_LDFLAGS"
 
        AC_CACHE_CHECK([for broken Perl_load_module()],
-               [have_broken_perl_load_module],
+               [c_cv_have_broken_perl_load_module],
                AC_LINK_IFELSE(
                        AC_LANG_PROGRAM(
                        [[
@@ -1906,8 +1906,8 @@ then
                             newSVpv ("Collectd::Plugin::FooBar", 24),
                             Nullsv);
                        ]]),
-                       [have_broken_perl_load_module="no"],
-                       [have_broken_perl_load_module="yes"]
+                       [c_cv_have_broken_perl_load_module="no"],
+                       [c_cv_have_broken_perl_load_module="yes"]
                )
        )
 
@@ -1915,7 +1915,7 @@ then
        LDFLAGS=$SAVE_LDFLAGS
 fi
 AM_CONDITIONAL(HAVE_BROKEN_PERL_LOAD_MODULE,
-               test "x$have_broken_perl_load_module" = "xyes")
+               test "x$c_cv_have_broken_perl_load_module" = "xyes")
 
 if test "x$with_libperl" = "xyes"
 then