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# Creates a makefile to build the Open Babel-Ruby extension.
# Compensate for the fact that Ruby will try to build universal
# binaries on OS X by default
require 'rbconfig'
if RbConfig::CONFIG["arch"] =~ /universal-darwin/
ENV['ARCHFLAGS'] = case `uname -smr`.chomp
when "i386" then '-arch i386'
when "ppc" then '-arch ppc'
end
isDarwin = true
else
isDarwin = false
end
require 'mkmf'
dir_config('openbabel')
# Find a trivial header in order to add the proper include path
# to the build flags.
here = File.dirname(__FILE__)
find_header('inchi_api.h', '/usr/include/inchi', '/usr/include', here + '/../../include')
# Prevent Ruby 1.8.x from trying to compile and link the extension
# using gcc.
if RUBY_VERSION < "1.9"
cxx = ''
begin
File.open('../Makefile', 'r').each_line do |line|
if line =~ /CXX = /
cxx = Regexp.last_match.post_match.chomp
end
end
rescue Errno::ENOENT
puts 'Please configure Open Babel before compiling the Ruby extension'
end
cpp_command(cxx)
end
if have_library('openbabel')
if isDarwin
with_ldflags("#$LDFLAGS -dynamic --flat-namespace") do #Enables cc to handle linking better.
create_makefile('openbabel')
end
else
with_ldflags("#$LDFLAGS -dynamic") do #Enables cc to handle linking better.
create_makefile('openbabel')
end
end
else
puts "Install Open Babel first. If you've already compiled and installed Open Babel, you may need to run ldconfig."
end
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