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When not installed to /usr/local use -isystem

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This means our include directory is prioritised above all -I but after all other system directories. This is how it should be.

Also helps fix Homebrew/homebrew#113.
This commit is contained in:
Max Howell 2009-12-01 11:27:44 +00:00
parent 4cea6157a1
commit e1690dd4aa
1 changed files with 2 additions and 2 deletions
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4
Library/Homebrew/extend/ENV.rb
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@ -35,8 +35,8 @@ module HomebrewEnvExtension
ENV['MAKEFLAGS']="-j#{Hardware.processor_count}"
unless HOMEBREW_PREFIX.to_s == '/usr/local'
# /usr/local is always in the build system path so only add other paths
ENV['CPPFLAGS'] = "-I#{HOMEBREW_PREFIX}/include"
# /usr/local is already an -isystem and -L directory so we skip it
ENV['CPPFLAGS'] = "-isystem #{HOMEBREW_PREFIX}/include"
ENV['LDFLAGS'] = "-L#{HOMEBREW_PREFIX}/lib"
else
# ignore existing build vars, thus we should have less bugs to deal with