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#
# pkg-config.rb
#
# Wrapper of pkg-config tool.
#
# Copyright(C) 2003-2005 Ruby-GNOME2 Project.
#
# This program is licenced under the same
# license of Ruby-GNOME2.
#
require 'mkmf'
require 'shellwords'
module PKGConfig
@@cmd = with_config('pkg-config', ENV["PKG_CONFIG"] || 'pkg-config')
if /mswin32/ =~ RUBY_PLATFORM and /^cl\b/ =~ Config::CONFIG['CC']
@@cmd += ' --msvc-syntax'
end
@@list = {}
`#{@@cmd} --list-all`.chomp.split(/\n/).each{|v|
pkg, name, desc = /(\S+?)\s+(.*?)\s-\s(.*)/.match(v).to_a[1..3]
@@list[pkg] = [name, desc]
}
module_function
def exist?(pkg)
system("#{@@cmd} --exists #{pkg}")
end
def libs(pkg)
`#{@@cmd} --libs #{pkg}`.chomp
end
def libs_only_L(pkg)
`#{@@cmd} --libs-only-L #{pkg}`.chomp
end
def libs_only_l(pkg)
`#{@@cmd} --libs-only-l #{pkg}`.chomp
end
def cflags(pkg)
`#{@@cmd} --cflags #{pkg}`.chomp
end
def cflags_only_I(pkg)
`#{@@cmd} --cflags-only-I #{pkg}`.chomp
end
def cflags_only_other(pkg)
`#{@@cmd} --cflags-only-other #{pkg}`.chomp
end
def variable(pkg, var)
`#{@@cmd} --variable=#{var} #{pkg}`.chomp
end
def modversion(pkg)
`#{@@cmd} --modversion #{pkg}`.chomp
end
def version
`#{@@cmd} --version`.chomp
end
def list_all
# Returns [pkg, name, description]
@@list.keys.collect{|key| [key] + @@list[key]}.sort
end
def name(pkg)
@@list[pkg][0]
end
def description(pkg)
@@list[pkg][1]
end
def provides(pkg)
`#{@@cmd} --print-provides #{pkg}`.chomp
end
def requires(pkg)
`#{@@cmd} --print-requires #{pkg}`.chomp.gsub("\n", ", ")
end
def check_version?(pkg, major = 0, minor = 0, micro = 0)
return false unless exist?(pkg)
ver = modversion(pkg).split(".").collect{|item| item.to_i}
(0..2).each {|i| ver[i] = 0 unless ver[i]}
(ver[0] > major ||
(ver[0] == major && ver[1] > minor) ||
(ver[0] == major && ver[1] == minor &&
ver[2] >= micro))
end
def have_package(pkg, major = nil, minor = 0, micro = 0)
if major.nil?
STDOUT.print("checking for #{pkg}... ")
else
STDOUT.print("checking for #{pkg} version (>= #{major}.#{minor}.#{micro})... ")
end
major ||= 0
STDOUT.flush
if check_version?(pkg, major, minor, micro)
STDOUT.print "yes\n"
libraries = libs_only_l(pkg)
dldflags = libs(pkg)
dldflags = (Shellwords.shellwords(dldflags) - Shellwords.shellwords(libraries)).map{|s| /\s/ =~ s ? "\"#{s}\"" : s }.join(' ')
$libs += ' ' + libraries
if /mswin32/ =~ RUBY_PLATFORM
$DLDFLAGS += ' ' + dldflags
else
$LDFLAGS += ' ' + dldflags
end
$CFLAGS += ' ' + cflags(pkg)
true
else
STDOUT.print "no\n"
false
end
end
end
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