diff options
| author | Ben Gamari <ben@smart-cactus.org> | 2021-04-02 11:52:47 -0400 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2021-05-05 05:42:38 -0400 |
| commit | 7ffbdc3fa603c6411249ba9b758cf8f109c5fb30 (patch) | |
| tree | 8a05d6e03ce2790e6e59651c824e569fee088d33 /m4/fp_copy_shellvar.m4 | |
| parent | 6acadb79afe685c635fd255f90551a0fbfcbe3dc (diff) | |
| download | haskell-7ffbdc3fa603c6411249ba9b758cf8f109c5fb30.tar.gz | |
Break up aclocal.m4
Diffstat (limited to 'm4/fp_copy_shellvar.m4')
| -rw-r--r-- | m4/fp_copy_shellvar.m4 | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/m4/fp_copy_shellvar.m4 b/m4/fp_copy_shellvar.m4 new file mode 100644 index 0000000000..f58601a3f1 --- /dev/null +++ b/m4/fp_copy_shellvar.m4 @@ -0,0 +1,3 @@ +# Helper for cloning a shell variable's state +AC_DEFUN([FP_COPY_SHELLVAR], +[if test -n "${$1+set}"; then $2="$$1"; else unset $2; fi ]) |