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authorNobuyoshi Nakada <nobu@ruby-lang.org>2022-03-17 14:29:35 +0900
committerNobuyoshi Nakada <nobu@ruby-lang.org>2022-03-17 14:37:34 +0900
commit329c89bb42bb44467588afc1d41d9f99172dfeb5 (patch)
tree5c8bbf5cb4d355178298a50c7ce99f064ec48be6 /lib
parente499d326899d2e7eb7e53702ffb8f7b7aa38124a (diff)
Make implicit function declaration error [Feature #18615]
Enable `-Werror=implicit-function-declaration` by default for building C extensions for early failures.
Diffstat (limited to 'lib')
-rw-r--r--lib/mkmf.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index 276e7302f4..ef14f3042e 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -2572,7 +2572,7 @@ site-install-rb: install-rb
if $warnflags = CONFIG['warnflags'] and CONFIG['GCC'] == 'yes'
# turn warnings into errors only for bundled extensions.
- config['warnflags'] = $warnflags.gsub(/(\A|\s)-Werror[-=]/, '\1-W')
+ config['warnflags'] = $warnflags.gsub(/(?:\A|\s)-W\Kerror[-=](?!implicit-function-declaration)/, '')
if /icc\z/ =~ config['CC']
config['warnflags'].gsub!(/(\A|\s)-W(?:division-by-zero|deprecated-declarations)/, '\1')
end