diff --git a/source/configure.in b/source/configure.in
index dce60bc..b6d964a 100644
--- a/source/configure.in
+++ b/source/configure.in
@@ -1204,6 +1204,7 @@ AC_DEFINE(HAVE_PRCTL, 1, [Whether prctl is available]),[])
 case "$host_os" in
     *linux*)
        # glibc <= 2.3.2 has a broken getgrouplist
+       AC_CACHE_CHECK([for broken getgrouplist],samba_cv_linux_getgrouplist_ok,[
        AC_TRY_RUN([
 #include <unistd.h>
 #include <sys/utsname.h>
@@ -1220,8 +1221,8 @@ main() {
 #endif
        exit(0);
 }
-], [linux_getgrouplist_ok=yes], [linux_getgrouplist_ok=no])
-       if test x"$linux_getgrouplist_ok" = x"yes"; then
+], [samba_cv_linux_getgrouplist_ok=yes], [samba_cv_linux_getgrouplist_ok=no])])
+       if test x"$samba_cv_linux_getgrouplist_ok" = x"yes"; then
           AC_DEFINE(HAVE_GETGROUPLIST, 1, [Have good getgrouplist])
        fi
        ;;