From: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Date: Mon, 11 Jun 2018 11:17:43 +0000 (+0200)
Subject: meson: also reject shifts that change the sign bit
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=commitdiff_plain;h=a6c19e8cc6f4e48f564a9a4d45872b11cd49374b;p=elogind.git

meson: also reject shifts that change the sign bit

../src/test/test-sizeof.c: In function ‘main’:
../src/test/test-sizeof.c:70:24: error: result of ‘1 << 31’ requires 33 bits to represent, but ‘int’ only has 32 bits [-Werror=shift-overflow=]
                 X = (1 << 31),
                        ^~
cc1: some warnings being treated as errors

Follow-up for b05ecb8cadd8c32d31b1aabcff4e507bd89b5465.
---

diff --git a/meson.build b/meson.build
index fe014eda7..df1dc4fca 100644
--- a/meson.build
+++ b/meson.build
@@ -387,6 +387,7 @@ endif
 #         '-Wwrite-strings',
 #         '-Werror=overflow',
 #         '-Werror=shift-count-overflow',
+#         '-Werror=shift-overflow=2',
 #         '-Wdate-time',
 #         '-Wnested-externs',
 #         '-ffast-math',
@@ -1929,6 +1930,7 @@ executable('elogind-user-runtime-dir',
 executable('elogind-user-runtime-dir',
 executable('elogind-user-runtime-dir',
 executable('elogind-user-runtime-dir',
+executable('elogind-user-runtime-dir',
 executable('elogind-user-runtime-dir',
            user_runtime_dir_sources,
            include_directories : includes,