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require 'fileutils'
require 'tmpdir'
require 'mkmf'
$:.unshift File.expand_path('../../../lib', __FILE__)
require 'openbabel/version'
ob_num_ver = OpenBabel::VERSION
ob_ver = "openbabel-"+ob_num_ver
RUBY=File.join(RbConfig::CONFIG['bindir'],
RbConfig::CONFIG['ruby_install_name'])
main_dir = File.expand_path(File.join(File.dirname(__FILE__),"..","..","src"))
lib_dir = File.expand_path(File.join(File.dirname(__FILE__),"..","..","src"))
Dir.mkdir main_dir
ob_main_dir = File.join(main_dir,ob_ver)
ob_bindings_dir = File.join(ob_main_dir,"scripts","ruby")
begin
Dir.chdir main_dir do
FileUtils.rm_rf ob_main_dir
puts "Downloading OpenBabel sources"
system "curl -L -d use_mirror=netcologne 'http://downloads.sourceforge.net/project/openbabel/openbabel/#{ob_num_ver}/openbabel-#{ob_num_ver}.tar.gz' | tar xz"
end
Dir.chdir ob_main_dir do
puts "Configuring OpenBabel"
system "cmake #{ob_main_dir} -DCMAKE_INSTALL_PREFIX=#{lib_dir}"
openbabel_libs = have_library('openbabel')
unless openbabel_libs
puts "OpenBabel not installed. Compiling sources."
system "make"
system "make install"
end
end
Dir.chdir ob_bindings_dir do
puts "Compiling and instaling OpenBabel Ruby bindings."
system "sed -i -e 's/Init_OpenBabel/Init_openbabel/g' *cpp"
# get include and lib from pkg-config
ob_include=`pkg-config openbabel-2.0 --cflags-only-I`.sub(/\s+/,'').sub(/-I/,'')
ob_lib=`pkg-config openbabel-2.0 --libs-only-L`.sub(/\s+/,'').sub(/-L/,'')
system "#{RUBY} extconf.rb --with-openbabel-include=#{ob_include} --with-openbabel-lib=#{ob_lib}"
system "sed -i -e 's/-Wl,-flat_namespace//;s/-flat_namespace//' Makefile"
system "make"
end
FileUtils.cp(ob_bindings_dir+"/openbabel.#{RbConfig::CONFIG["DLEXT"]}", "./")
File.open('Makefile', 'w') do |makefile|
makefile.write <<"EOF"
.PHONY: openbabel.#{RbConfig::CONFIG["DLEXT"]}
openbabel.#{RbConfig::CONFIG["DLEXT"]}:
chmod 755 openbabel.#{RbConfig::CONFIG["DLEXT"]}
.PHONY: install
install:
mkdir -p ../../lib/openbabel
mv openbabel.#{RbConfig::CONFIG["DLEXT"]} ../../lib/openbabel
EOF
end
ensure
FileUtils.remove_entry_secure main_dir
end
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