From 983aea463f0a27d7728655b3d158b494a727f4ca Mon Sep 17 00:00:00 2001 From: nobu Date: Fri, 7 Mar 2008 10:56:13 +0000 Subject: * lib/mkmf.rb: rdoc added. [ruby-Patches-9762] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15725 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- lib/mkmf.rb | 123 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 121 insertions(+), 2 deletions(-) (limited to 'lib') diff --git a/lib/mkmf.rb b/lib/mkmf.rb index 6a3e9d194e..0d51ad1253 100644 --- a/lib/mkmf.rb +++ b/lib/mkmf.rb @@ -66,6 +66,8 @@ $beos = /beos/ =~ RUBY_PLATFORM $solaris = /solaris/ =~ RUBY_PLATFORM $dest_prefix_pattern = (File::PATH_SEPARATOR == ';' ? /\A([[:alpha:]]:)?/ : /\A/) +# :stopdoc: + def config_string(key, config = CONFIG) s = config[key] and !s.empty? and block_given? ? yield(s) : s end @@ -171,14 +173,18 @@ CPPOUTFILE = CONFIG['CPPOUTFILE'] CONFTEST_C = "conftest.c".freeze class String + # Wraps a string in escaped quotes if it contains whitespace. def quote /\s/ =~ self ? "\"#{self}\"" : "#{self}" end + + # Generates a string used as cpp macro name. def tr_cpp strip.upcase.tr_s("^A-Z0-9_", "_") end end class Array + # Wraps all strings in escaped quotes if they contain whitespace. def quote map {|s| s.quote} end @@ -188,6 +194,8 @@ def rm_f(*files) FileUtils.rm_f(Dir[*files]) end +# Returns time stamp of the +target+ file if it exists and is newer +# than or equal to all of +times+. def modified?(target, times) (t = File.mtime(target)) rescue return nil Array === times or times = [times] @@ -210,6 +218,12 @@ def merge_libs(*libs) end end +# This is a custom logging module. It generates an mkmf.log file when you +# run your extconf.rb script. This can be useful for debugging unexpected +# failures. +# +# This module and its associated methods are meant for internal use only. +# module Logging @log = nil @logfile = 'mkmf.log' @@ -538,6 +552,7 @@ ensure log_src(src) end +# This is used internally by the have_macro? method. def macro_defined?(macro, src, opt = "", &b) src = src.sub(/[^\n]\z/, "\\&\n") try_compile(src + <<"SRC", opt, &b) @@ -606,7 +621,7 @@ def install_rb(mfile, dest, srcdir = nil) install_files(mfile, [["lib/**/*.rb", dest, "lib"]], nil, srcdir) end -def append_library(libs, lib) +def append_library(libs, lib) # :no-doc: format(LIBARG, lib) + " " + libs end @@ -617,6 +632,11 @@ def message(*s) end end +# This emits a string to stdout that allows users to see the results of the +# various have* and find* methods as they are tested. +# +# Internal use only. +# def checking_for(m, fmt = nil) f = caller[0][/in `(.*)'$/, 1] and f << ": " #` for vim #' m = "checking #{/\Acheck/ =~ f ? '' : 'for '}#{m}... " @@ -646,6 +666,8 @@ def checking_message(target, place = nil, opt = nil) end end +# :startdoc: + # Returns whether or not +macro+ is defined either in the common header # files or within any +headers+ you provide. # @@ -665,7 +687,7 @@ end # If +headers+ are provided, it will include those header files as the # header files it looks in when searching for +func+. # -# Real name of the library to be linked can be altered by +# The real name of the library to be linked can be altered by # '--with-FOOlib' configuration option. # def have_library(lib, func = nil, headers = nil, &b) @@ -945,6 +967,10 @@ def check_sizeof(type, headers = nil, &b) end end +# :stopdoc: + +# Used internally by the what_type? method to determine if +type+ is a scalar +# pointer. def scalar_ptr_type?(type, member = nil, headers = nil, &b) try_compile(<<"SRC", &b) # pointer #{COMMON_HEADERS} @@ -956,6 +982,8 @@ int t() {return (int)(1-*(conftestval#{member ? ".#{member}" : ""}));} SRC end +# Used internally by the what_type? method to determine if +type+ is a scalar +# pointer. def scalar_type?(type, member = nil, headers = nil, &b) try_compile(<<"SRC", &b) # pointer #{COMMON_HEADERS} @@ -999,6 +1027,10 @@ def what_type?(type, member = nil, headers = nil, &b) end end +# This method is used internally by the find_executable method. +# +# Internal use only. +# def find_executable0(bin, path = nil) ext = config_string('EXEEXT') if File.expand_path(bin) == bin @@ -1019,12 +1051,25 @@ def find_executable0(bin, path = nil) nil end +# :startdoc: + +# Searches for the executable +bin+ on +path+. The default path is your +# PATH environment variable. If that isn't defined, it will resort to +# searching /usr/local/bin, /usr/ucb, /usr/bin and /bin. +# +# If found, it will return the full path, including the executable name, +# of where it was found. +# +# Note that this method does not actually affect the generated Makefile. +# def find_executable(bin, path = nil) checking_for checking_message(bin, path) do find_executable0(bin, path) end end +# :stopdoc: + def arg_config(config, default=nil, &block) $arg_config << [config, default] defaults = [] @@ -1036,6 +1081,20 @@ def arg_config(config, default=nil, &block) $configure_args.fetch(config.tr('_', '-'), *defaults, &block) end +# :startdoc: + +# Tests for the presence of a --with-config or --without-config +# option. Returns true if the with option is given, false if the without +# option is given, and the default value otherwise. +# +# This can be useful for adding custom definitions, such as debug information. +# +# Example: +# +# if with_config("debug") +# $defs.push("-DOSSL_DEBUG") unless $defs.include? "-DOSSL_DEBUG" +# end +# def with_config(config, default=nil) config = config.sub(/^--with[-_]/, '') val = arg_config("--with-"+config) do @@ -1057,6 +1116,18 @@ def with_config(config, default=nil) end end +# Tests for the presence of an --enable-config or +# --disable-config option. Returns true if the enable option is given, +# false if the disable option is given, and the default value otherwise. +# +# This can be useful for adding custom definitions, such as debug information. +# +# Example: +# +# if enable_config("debug") +# $defs.push("-DOSSL_DEBUG") unless $defs.include? "-DOSSL_DEBUG" +# end +# def enable_config(config, default=nil) if arg_config("--enable-"+config) true @@ -1069,6 +1140,32 @@ def enable_config(config, default=nil) end end +# Generates a header file consisting of the various macro definitions generated +# by other methods such as have_func and have_header. These are then wrapped in +# a custom #ifndef based on the +header+ file name, which defaults to +# 'extconf.h'. +# +# For example: +# +# # extconf.rb +# require 'mkmf' +# have_func('realpath') +# have_header('sys/utime.h') +# create_header +# create_makefile('foo') +# +# The above script would generate the following extconf.h file: +# +# #ifndef EXTCONF_H +# #define EXTCONF_H +# #define HAVE_REALPATH 1 +# #define HAVE_SYS_UTIME_H 1 +# #endif +# +# Given that the create_header method generates a file based on definitions +# set earlier in your extconf.rb file, you will probably want to make this +# one of the last methods you call in your script. +# def create_header(header = "extconf.h") message "creating %s\n", header sym = header.tr("a-z./\055", "A-Z___") @@ -1136,6 +1233,10 @@ def dir_config(target, idefault=nil, ldefault=nil) [idir, ldir] end +# :stopdoc: + +# Handles meta information about installed libraries. Uses your platform's +# pkg-config program if it has one. def pkg_config(pkg) if pkgconfig = with_config("#{pkg}-config") and find_executable0(pkgconfig) # iff package specific config command is given @@ -1173,6 +1274,10 @@ def with_destdir(dir) /\A\$[\(\{]/ =~ dir ? dir : "$(DESTDIR)"+dir end +# Converts forward slashes to backslashes. Aimed at MS Windows. +# +# Internal use only. +# def winsep(s) s.tr('/', '\\') end @@ -1283,6 +1388,7 @@ preload = #{defined?($preload) && $preload ? $preload.join(' ') : ''} end mk end +# :startdoc: def dummy_makefile(srcdir) configuration(srcdir) << <