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require 'formula'
# This should really be named Mpich now, but homebrew cannot currently handle
# formula renames, see homebrew issue #14374.
class Mpich2 < Formula
homepage 'http://www.mpich.org/'
url 'http://www.mpich.org/static/downloads/3.0.4/mpich-3.0.4.tar.gz'
sha1 'e89cc8de89d18d5718f7b881f3835b5a0943f897'
head 'git://git.mpich.org/mpich.git'
# the HEAD version requires the autotools to be installed
# (autoconf>=2.67, automake>=1.12.3, libtool>=2.4)
if build.head?
depends_on 'automake' => :build
depends_on 'libtool' => :build
end
option 'disable-fortran', "Do not attempt to build Fortran bindings"
option 'enable-shared', "Build shared libraries"
conflicts_with 'open-mpi', :because => 'both install mpi__ compiler wrappers'
# fails with clang from Xcode 4.5.1 on 10.7 and 10.8 (see #15533)
# linker bug appears to have been fixed by Xcode 4.6
fails_with :clang do
build 421
cause <<-EOS.undent
Clang generates code that causes the linker to segfault when building
MPICH with shared libraries. Specific message:
collect2: ld terminated with signal 11 [Segmentation fault: 11]
EOS
end if build.include? 'enable-shared'
def install
if build.head?
# ensure that the consistent set of autotools built by homebrew is used to
# build MPICH, otherwise very bizarre build errors can occur
ENV['MPICH_AUTOTOOLS_DIR'] = (HOMEBREW_PREFIX+'bin')
system "./autogen.sh"
end
args = [
"--disable-dependency-tracking",
"--disable-silent-rules",
"--prefix=#{prefix}",
"--mandir=#{man}"
]
if build.include? 'disable-fortran'
args << "--disable-f77" << "--disable-fc"
else
ENV.fortran
end
# MPICH configure defaults to "--disable-shared"
if build.include? 'enable-shared'
args << "--enable-shared"
end
system "./configure", *args
system "make"
system "make install"
end
def test
# a better test would be to build and run a small MPI program
system "#{bin}/mpicc", "-show"
end
end
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