From: Andre Noll <maan@tuebingen.mpg.de>
Date: Tue, 26 Oct 2021 17:11:02 +0000 (+0200)
Subject: build: Compile with -ftrapv.
X-Git-Tag: v0.7.1~1^2
X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=commitdiff_plain;h=9240a6e9119ac60c27cc3ba10a31a80976d65daf

build: Compile with -ftrapv.

This causes signed overflow to raise an exception. The option is
supported on the lowest gcc version we support, so we don't bother
to check by calling cc-option() in Makefile.real.
---

diff --git a/Makefile.real b/Makefile.real
index 6e8084d5..9a6c7e76 100644
--- a/Makefile.real
+++ b/Makefile.real
@@ -119,6 +119,7 @@ CPPFLAGS += -I$(yy_build_dir)
 CPPFLAGS += $(lopsub_cppflags)
 
 STRICT_CFLAGS += -fno-strict-aliasing
+STRICT_CFLAGS += -ftrapv
 STRICT_CFLAGS += -g
 STRICT_CFLAGS += -Os
 STRICT_CFLAGS += -Wundef -W -Wuninitialized