From ef28f6df42c916b058ed14275fb1ceba63ede28e Mon Sep 17 00:00:00 2001
From: Nate Ohlson <nohlson@purdue.edu>
Date: Wed, 26 Jun 2024 05:21:21 -0500
Subject: gh-121040: Remove fallthrough warnings compiler option (gh-121041)

Remove fallthrough warnings
---
 configure    | 39 ---------------------------------------
 configure.ac |  1 -
 2 files changed, 40 deletions(-)

diff --git a/configure b/configure
index e61acca..527bb0b 100755
--- a/configure
+++ b/configure
@@ -9607,45 +9607,6 @@ fi
 
 # Enable flags that warn and protect for potential security vulnerabilities.
 # These flags should be enabled by default for all builds.
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -Wimplicit-fallthrough" >&5
-printf %s "checking whether C compiler accepts -Wimplicit-fallthrough... " >&6; }
-if test ${ax_cv_check_cflags__Werror__Wimplicit_fallthrough+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-
-  ax_check_save_flags=$CFLAGS
-  CFLAGS="$CFLAGS -Werror -Wimplicit-fallthrough"
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-int
-main (void)
-{
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"
-then :
-  ax_cv_check_cflags__Werror__Wimplicit_fallthrough=yes
-else $as_nop
-  ax_cv_check_cflags__Werror__Wimplicit_fallthrough=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam conftest.$ac_ext
-  CFLAGS=$ax_check_save_flags
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ax_cv_check_cflags__Werror__Wimplicit_fallthrough" >&5
-printf "%s\n" "$ax_cv_check_cflags__Werror__Wimplicit_fallthrough" >&6; }
-if test "x$ax_cv_check_cflags__Werror__Wimplicit_fallthrough" = xyes
-then :
-  BASECFLAGS="$BASECFLAGS -Wimplicit-fallthrough"
-else $as_nop
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: -Wimplicit-fallthrough not supported" >&5
-printf "%s\n" "$as_me: WARNING: -Wimplicit-fallthrough not supported" >&2;}
-fi
-
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -fstack-protector-strong" >&5
 printf %s "checking whether C compiler accepts -fstack-protector-strong... " >&6; }
 if test ${ax_cv_check_cflags__Werror__fstack_protector_strong+y}
diff --git a/configure.ac b/configure.ac
index 33dee0a..9b8ab70 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2453,7 +2453,6 @@ AS_VAR_IF([with_strict_overflow], [yes],
 
 # Enable flags that warn and protect for potential security vulnerabilities.
 # These flags should be enabled by default for all builds.
-AX_CHECK_COMPILE_FLAG([-Wimplicit-fallthrough], [BASECFLAGS="$BASECFLAGS -Wimplicit-fallthrough"], [AC_MSG_WARN([-Wimplicit-fallthrough not supported])], [-Werror])
 AX_CHECK_COMPILE_FLAG([-fstack-protector-strong], [BASECFLAGS="$BASECFLAGS -fstack-protector-strong"], [AC_MSG_WARN([-fstack-protector-strong not supported])], [-Werror])
 AX_CHECK_COMPILE_FLAG([-Wtrampolines], [BASECFLAGS="$BASECFLAGS -Wtrampolines"], [AC_MSG_WARN([-Wtrampolines not supported])], [-Werror])
 
-- 
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