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#!/usr/bin/env ruby
require 'mkmf'
def crash(str)
printf(" extconf failure: %s\n", str)
exit 1
end
xc = with_config('xml2-config')
if xc
cflags = `#{xc} --cflags`.chomp
if $? != 0
cflags = nil
else
libs = `#{xc} --libs`.chomp
if $? != 0
libs = nil
else
$CFLAGS += ' ' + cflags
$libs = libs + " " + $libs
end
end
else
dir_config('xml2')
end
found_header = find_header('libxml/xmlversion.h',
'/opt/include/libxml2',
'/opt/local/include/libxml2',
'/opt/homebrew/opt/libxml2/include/libxml2',
'/usr/local/include/libxml2',
'/usr/include/libxml2',
'/usr/local/include',
'/usr/local/opt/libxml2/include/libxml2')
found_lib = find_library('xml2', 'xmlParseDoc',
'/opt/lib',
'/opt/local/lib',
'/opt/homebrew/opt/libxml2/lib',
'/usr/lib',
'/usr/local/lib',
'/usr/local/opt/libxml2/lib')
found_lib ||= find_library('libxml2', 'xmlParseDoc',
'/opt/lib',
'/opt/local/lib',
'/opt/homebrew/opt/libxml2/lib',
'/usr/lib',
'/usr/local/lib',
'/usr/local/opt/libxml2/lib')
if !found_header || !found_lib
crash(<<~EOL)
Cannot find libxml2.
Install the library or try one of the following options to extconf.rb:
--with-xml2-config=/path/to/xml2-config
--with-xml2-dir=/path/to/libxml2
--with-xml2-lib=/path/to/libxml2/lib
--with-xml2-include=/path/to/libxml2/include
EOL
end
# Optional zlib support via libxml2; defines HAVE_ZLIB_H if available.
unless have_header("zlib.h")
message "zlib not found: building without compression support\n"
end
create_header()
create_makefile('libxml_ruby')
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