diff --git a/config/gnu-fflags b/config/gnu-fflags
index 1d6caa1e77..911a2642e5 100644
--- a/config/gnu-fflags
+++ b/config/gnu-fflags
@@ -78,6 +78,10 @@ if test "X-gfortran" = "X-$f9x_vendor"; then
     FSEARCH_DIRS=""
     H5_FCFLAGS="$H5_FCFLAGS -pedantic -Wall -Wconversion -Wunderflow -Wimplicit-interface -W"
 
+    # Turn off warnings for passing non-ANSI types to BIND().
+    # We pass a lot of hid_t, etc. types so this generates a LOT of spurious warnings.
+    H5_FCFLAGS="$H5_FCFLAGS -Wno-c-binding-type"
+
     # Production
     PROD_FCFLAGS="-O2 -s"