ruby/tool/m4/ruby_append_options.m4

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dnl -*- Autoconf -*-
AC_DEFUN([RUBY_APPEND_OPTIONS],
[# RUBY_APPEND_OPTIONS($1)
for rb_opt in $2; do
AS_CASE([" [$]{$1-} "],
[*" [$]{rb_opt} "*], [], [' '], [ $1="[$]{rb_opt}"], [ $1="[$]$1 [$]{rb_opt}"])
done])dnl