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require 'formula'
class Mpich2 < Formula
homepage 'http://www.mpich.org/'
url 'http://www.mpich.org/static/tarballs/1.5/mpich2-1.5.tar.gz'
sha1 'be7448227dde5badf3d6ebc0c152b200998421e0'
head 'https://svn.mcs.anl.gov/repos/mpi/mpich2/trunk'
# 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"
# fails with clang from Xcode 4.5.1 on 10.7 and 10.8 (see #15533)
fails_with :clang do
build 421
cause <<-EOS.undent
Clang generates code that causes the linker to segfault when building
MPICH2 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 MPICH2, otherwise very bizarre build errors can occur
ENV['MPICH2_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
# MPICH2 configure defaults to "--disable-shared"
if build.include? 'enable-shared'
args << "--enable-shared"
end
system "./configure", *args
system "make"
system "make install"
# MPE installs several helper scripts like "mpeuninstall" to the sbin
# directory, which we don't need when installing via homebrew
sbin.rmtree
end
def caveats; <<-EOS.undent
Please be aware that installing this formula along with the `openmpi`
formula will cause neither MPI installation to work correctly as
both packages install their own versions of mpicc/mpicxx and mpirun.
EOS
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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