[PATCH] Drop -Wno-long-long from CFLAGS

We already require C99.
---
 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index a58b152b..bc7d7137 100644
--- a/configure.ac
+++ b/configure.ac
@@ -956,7 +956,7 @@ AC_ARG_ENABLE(warnings, AS_HELP_STRING([--disable-warnings],[Turn off compiler w
 fi])
 
 if test x$GCC = xyes && test $mutt_cv_warnings = yes; then
-  CFLAGS="-Wall -pedantic -Wno-long-long $CFLAGS"
+  CFLAGS="-Wall -pedantic $CFLAGS"
 fi
 
 AC_ARG_ENABLE(nfs-fix, AS_HELP_STRING([--enable-nfs-fix],[Work around an NFS with broken attributes caching]),
-- 
2.51.0