From 5ca444e3b872f10f927d5d3673a4c4caa412a23e Mon Sep 17 00:00:00 2001
From: "Kirill A. Korinsky" <kirill@korins.ky>
Date: Wed, 26 Jul 2023 12:42:37 +0200
Subject: [PATCH] Use `-fno-new-ttp-matching` only when it is supported (#256)

Not all compilers supported `-fno-new-ttp-matching` that literally
broke tcpflow on macOS where clang is default and expected compiler.
---
 configure.ac               | 2 +-
 m4/slg_gcc_all_warnings.m4 | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 2e4627cf..f248f2fb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -70,7 +70,7 @@ case $host in
      ;;
 
    *)
-     CXXFLAGS="$CXXFLAGS -Wno-address-of-packed-member -fno-new-ttp-matching"
+     CXXFLAGS="$CXXFLAGS -Wno-address-of-packed-member"
      ;;
 esac
 
diff --git a/m4/slg_gcc_all_warnings.m4 b/m4/slg_gcc_all_warnings.m4
index 198361cc..ff807f96 100644
--- a/m4/slg_gcc_all_warnings.m4
+++ b/m4/slg_gcc_all_warnings.m4
@@ -79,6 +79,7 @@ CXX_WARNINGS_TO_TEST="-Wall -MD -D_FORTIFY_SOURCE=2 -Wpointer-arith \
     -Wredundant-decls -Wdisabled-optimization \
     -Wfloat-equal -Wmultichar -Wmissing-noreturn \
     -Woverloaded-virtual -Wsign-promo \
+    -fno-new-ttp-matching \
     -funit-at-a-time"
 
 if test x"${mingw}" != "xyes" ; then