diff options
Diffstat (limited to 'tool/m4/ruby_prepend_option.m4')
| -rw-r--r-- | tool/m4/ruby_prepend_option.m4 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tool/m4/ruby_prepend_option.m4 b/tool/m4/ruby_prepend_option.m4 new file mode 100644 index 0000000000..c1d28528c5 --- /dev/null +++ b/tool/m4/ruby_prepend_option.m4 @@ -0,0 +1,4 @@ +AC_DEFUN([RUBY_PREPEND_OPTION], + [# RUBY_PREPEND_OPTION($1) + AS_CASE([" [$]{$1-} "], + [*" $2 "*], [], [' '], [ $1="$2"], [ $1="$2 [$]$1"])])dnl |