ruby--ruby/tool/m4/ruby_prepend_option.m4

# -*- Autoconf -*-
AC_DEFUN([RUBY_PREPEND_OPTION],
	[# RUBY_PREPEND_OPTION($1)
	AS_CASE([" [$]{$1-} "],
	[*" $2 "*], [], ['  '], [ $1="$2"], [ $1="$2 [$]$1"])])dnl
Emacs friendliness [ci skip] Just add comment by: sed -i $'1i\\\n# -- Autoconf --' tool/m4/*.m4 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61983 b2dd03c8-39d4-4d8f-98ff-823fe69b080e 2018-01-20 07:14:59 +00:00			`# -- Autoconf --`
refactor split configure.ac into files This does not (yet) change anything. The generated configure file is the identical to previous one (except several empty lines added and deleted). git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61981 b2dd03c8-39d4-4d8f-98ff-823fe69b080e 2018-01-20 07:05:25 +00:00			`AC_DEFUN([RUBY_PREPEND_OPTION],`
			`[# RUBY_PREPEND_OPTION($1)`
			`AS_CASE([" [$]{$1-} "],`
			`[" $2 "], [], [' '], [ $1="$2"], [ $1="$2 [$]$1"])])dnl`