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-rw-r--r--tasks/toolchains/clang.rake5
1 files changed, 3 insertions, 2 deletions
diff --git a/tasks/toolchains/clang.rake b/tasks/toolchains/clang.rake
index b38f531b7..543cb73db 100644
--- a/tasks/toolchains/clang.rake
+++ b/tasks/toolchains/clang.rake
@@ -1,7 +1,8 @@
MRuby::Toolchain.new(:clang) do |conf, _params|
toolchain :gcc, default_command: 'clang'
- [conf.cc, conf.objc, conf.asm, conf.cxx].each do |compiler|
- compiler.flags.unshift('-Wzero-length-array')
+ [conf.cc, conf.objc, conf.asm].each do |cc|
+ cc.flags << '-Wzero-length-array' unless ENV['CFLAGS']
end
+ conf.cxx.flags << '-Wzero-length-array' unless ENV['CXXFLAGS'] || ENV['CFLAGS']
end