locale.c: Silence compiler warning

Later gcc compilers warn on these intentional fall throughs in a
switch().  Adding FALLTHROUGH would make things a lot less clear, so
turn off the warnings around the whole switch.

1 files changed, 5 insertions, 0 deletions

diff --git a/locale.c b/locale.c
index 8fa326d56e..de171fc6d1 100644
--- a/locale.c
+++ b/locale.c
@@ -2915,6 +2915,9 @@ S_my_nl_langinfo(const int item, bool toggle)
                 tm.tm_year = 2017 - 1900;
                 tm.tm_wday = 0;
                 tm.tm_mon = 0;
+
+                GCC_DIAG_IGNORE_STMT(-Wimplicit-fallthrough);
+
                 switch (item) {
                     default:
                         Perl_croak(aTHX_
@@ -3003,6 +3006,8 @@ S_my_nl_langinfo(const int item, bool toggle)
                         break;
                 }
 
+                GCC_DIAG_RESTORE_STMT;
+
                 /* We can't use my_strftime() because it doesn't look at
                  * tm_wday  */
                 while (0 == strftime(PL_langinfo_buf, PL_langinfo_bufsize,