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superenv: find Homebrew's gcc-4.2

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If we're using a homebrewed gcc-4.2, xcrun may fail to find it (or,
worse, find superenv's shim instead). Explicitly add it to the PATH and
search all path elements for the requested tool.

Also make sure to specify 'gcc-4.2' as the compiler name, not plain
'gcc'. That can resolve to llvm-gcc and to gcc-4.0 on various Xcodes.
This commit is contained in:
Misty De Meo 2013-05-27 15:17:49 -05:00
parent 347c905a7f
commit 63b9031159
2 changed files with 23 additions and 4 deletions
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6
Library/ENV/4.3/xcrun
View File

@ -21,7 +21,11 @@ try `/usr/bin/xcrun --find #{arg0}`.chomp
# Nuts, Xcode is not setup properly or something. Try to find the tools anyway!
try "#{ENV['DEVELOPER_DIR']}/usr/bin/#{arg0}"
try "#{ENV['DEVELOPER_DIR']}/Toolchains/XcodeDefault.xctoolchain/usr/bin/#{arg0}"
try "/usr/bin/#{arg0}"
# xcrun won't always be able to find Homebrew's apple-gcc42,
# even when it's in the PATH
ENV['PATH'].split(':').each do |p|
try "#{p}/#{arg0}"
end
abort <<-EOS
Your Xcode and or CLT are mis-configured. Try some or all of the following:

21
Library/Homebrew/superenv.rb
View File

@ -61,6 +61,13 @@ class << ENV
ENV['CMAKE_INCLUDE_PATH'] = determine_cmake_include_path
ENV['CMAKE_LIBRARY_PATH'] = determine_cmake_library_path
ENV['ACLOCAL_PATH'] = determine_aclocal_path
# Homebrew's apple-gcc42 will be outside the PATH in superenv,
# so xcrun may not be able to find it
if ENV['HOMEBREW_CC'] == 'gcc-4.2' && !MacOS.locate('gcc-4.2')
apple_gcc42 = Formula.factory('apple-gcc42') rescue nil
ENV.append('PATH', apple_gcc42.opt_prefix/'bin', ':') if apple_gcc42
end
end
def universal_binary
@ -76,8 +83,13 @@ class << ENV
def determine_cc
if ARGV.include? '--use-gcc'
gcc_installed = Formula.factory('apple-gcc42').installed? rescue false
# fall back to something else on systems without Apple gcc
MacOS.locate('gcc-4.2') ? "gcc-4.2" : raise("gcc-4.2 not found!")
if MacOS.locate('gcc-4.2') || gcc_installed
"gcc-4.2"
else
raise("gcc-4.2 not found!")
end
elsif ARGV.include? '--use-llvm'
"llvm-gcc"
elsif ARGV.include? '--use-clang'
@ -93,7 +105,10 @@ class << ENV
"gcc"
elsif ENV['HOMEBREW_CC']
case ENV['HOMEBREW_CC']
when 'clang', 'gcc', 'gcc-4.0' then ENV['HOMEBREW_CC']
when 'clang', 'gcc-4.0' then ENV['HOMEBREW_CC']
# depending on Xcode version plain 'gcc' could actually be
# gcc-4.0 or llvm-gcc
when 'gcc' then 'gcc-4.2'
when 'llvm', 'llvm-gcc' then 'llvm-gcc'
else
opoo "Invalid value for HOMEBREW_CC: #{ENV['HOMEBREW_CC']}"
@ -106,7 +121,7 @@ class << ENV
case MacOS.default_compiler
when :clang then 'clang'
when :llvm then 'llvm-gcc'
when :gcc then 'gcc'
when :gcc then 'gcc-4.2'
when :gcc_4_0 then 'gcc-4.0'
end
end