homebrew-core/Formula/llvm.rb

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require 'formula'
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def build_clang?; ARGV.include? '--with-clang'; end
def build_universal?; ARGV.include? '--universal'; end
def build_shared?; ARGV.include? '--shared'; end
def build_rtti?; ARGV.include? '--rtti'; end
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class Clang <Formula
url 'http://llvm.org/releases/2.8/clang-2.8.tgz'
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homepage 'http://llvm.org/'
md5 '10e14c901fc3728eecbd5b829e011b59'
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end
class Llvm <Formula
url 'http://llvm.org/releases/2.8/llvm-2.8.tgz'
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homepage 'http://llvm.org/'
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md5 '220d361b4d17051ff4bb21c64abe05ba'
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def patches
# changes the link options for the shared library build
# to use the preferred way to build libraries in Mac OS X
# Reported upstream: http://llvm.org/bugs/show_bug.cgi?id=8985
DATA if build_shared?
end
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def options
[['--with-clang', 'Also build & install clang'],
['--shared', 'Build shared library'],
['--rtti', 'Build with RTTI information'],
['--universal', 'Build both i386 and x86_64 architectures']]
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end
def install
ENV.gcc_4_2 # llvm can't compile itself
if build_shared? && build_universal?
onoe "Cannot specify both shared and universal (will not build)"
exit 1
end
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if build_clang?
clang_dir = Pathname.new(Dir.pwd)+'tools/clang'
Clang.new.brew { clang_dir.install Dir['*'] }
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end
if build_universal?
ENV['UNIVERSAL'] = '1'
ENV['UNIVERSAL_ARCH'] = 'i386 x86_64'
end
ENV['REQUIRES_RTTI'] = '1' if build_rtti?
configure_options = ["--prefix=#{prefix}",
"--enable-targets=host-only",
"--enable-optimized"]
configure_options << "--enable-shared" if build_shared?
system "./configure", *configure_options
system "make" # separate steps required, otherwise the build fails
system "make install"
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if build_clang?
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Dir.chdir clang_dir do
system "make install"
end
end
end
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def caveats; <<-EOS
If you already have LLVM installed, then "brew upgrade llvm" might not
work. Instead, try:
$ brew rm llvm
$ brew install llvm
EOS
end
end
__END__
diff --git a/Makefile.rules b/Makefile.rules
index 9cff105..44d5b2d 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -497,7 +497,7 @@ ifeq ($(HOST_OS),Darwin)
# Get "4" out of 10.4 for later pieces in the makefile.
DARWIN_MAJVERS := $(shell echo $(DARWIN_VERSION)| sed -E 's/10.([0-9]).*/\1/')
- SharedLinkOptions=-Wl,-flat_namespace -Wl,-undefined,suppress \
+ SharedLinkOptions=-Wl,-undefined,dynamic_lookup \
-dynamiclib
ifneq ($(ARCH),ARM)
SharedLinkOptions += -mmacosx-version-min=$(DARWIN_VERSION)