diff options
| author | Nick Bowler <nbowler@draconx.ca> | 2021-08-17 18:26:42 -0700 |
|---|---|---|
| committer | Karl Berry <karl@freefriends.org> | 2021-08-17 18:26:42 -0700 |
| commit | f4a3a70f69e1dbccb6578f39ef47835098a04624 (patch) | |
| tree | 63bb6c0f6b8e2a13f9c87b9c815ec1e6e1a44089 | |
| parent | 4ace473b8bb0594765b0513ea9533a2114480688 (diff) | |
| download | automake-f4a3a70f69e1dbccb6578f39ef47835098a04624.tar.gz | |
automake: fatal error on second AM_INIT_AUTOMAKE.
This change addresses https://bugs.gnu.org/50046.
Patch posted:
https://lists.gnu.org/archive/html/automake-patches/2021-08/msg00000.html
* m4/init.m4: Make attempts to expand AM_INIT_AUTOMAKE more than
once a fatal error at m4 time.
| -rw-r--r-- | m4/init.m4 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/m4/init.m4 b/m4/init.m4 index c5807d211..b4686b140 100644 --- a/m4/init.m4 +++ b/m4/init.m4 @@ -28,6 +28,10 @@ m4_defn([AC_PROG_CC]) # release and drop the old call support. AC_DEFUN([AM_INIT_AUTOMAKE], [AC_PREREQ([2.65])dnl +m4_ifdef([_$0_ALREADY_INIT], + [m4_fatal([$0 expanded multiple times +]m4_defn([_$0_ALREADY_INIT]))], + [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl dnl Autoconf wants to disallow AM_ names. We explicitly allow dnl the ones we care about. m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl |