| Fumitoshi Ukai | b266613 | 2015-04-01 12:08:07 +0900 | [diff] [blame] | 1 | # http://www.gnu.org/software/make/manual/make.html#Syntax-of-Functions |
| 2 | ,:= , | ||||
| 3 | empty:= | ||||
| 4 | space:= $(empty) $(empty) | ||||
| 5 | foo:= a b c | ||||
| 6 | bar:= $(subst $(space),$,,$(foo)) | ||||
| 7 | # bar is now `,abc' | ||||
| 8 | # space in `,$(foo)' replaced with `$', which will be empty | ||||
| 9 | |||||
| 10 | test: | ||||
| 11 | echo $(bar) | ||||