diff options
| author | Paul Eggert <eggert@cs.ucla.edu> | 2023-04-01 20:25:13 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2023-04-01 20:26:41 -0700 |
| commit | 794182506c3c5814d48b2fc4d832770f608ce0ef (patch) | |
| tree | 7b1656a9ee30709b5ffce9461a6559130cba904e | |
| parent | 713d9822bbfb2923115065efaefed34a0113f8a1 (diff) | |
| download | autoconf-794182506c3c5814d48b2fc4d832770f608ce0ef.tar.gz | |
Support underquoted callers better
Problem reported bh Khem Raj for mcpp 2.7.2 (2008) in:
https://lists.gnu.org/r/autoconf/2023-04/msg00001.html
* lib/autoconf/programs.m4 (_AC_PATH_PROG_FLAVOR_GNU):
Add two ‘@%:@(’s to cater to underquoted callers.
* lib/m4sugar/m4sh.m4 (_AS_PATH_WALK): Use quadrigraph instead of
‘#’, for underquoted callers.
| -rw-r--r-- | lib/autoconf/programs.m4 | 5 | ||||
| -rw-r--r-- | lib/m4sugar/m4sh.m4 | 2 |
2 files changed, 4 insertions, 3 deletions
diff --git a/lib/autoconf/programs.m4 b/lib/autoconf/programs.m4 index 62ba6b8b..d06d18c4 100644 --- a/lib/autoconf/programs.m4 +++ b/lib/autoconf/programs.m4 @@ -543,11 +543,12 @@ dnl # for best performing tool in a list breaks down. # ---------------------------------------------------------------- m4_define([_AC_PATH_PROG_FLAVOR_GNU], [# Check for GNU $1 -case `"$1" --version 2>&1` in +case `"$1" --version 2>&1` in @%:@( *GNU*) $2;; m4_ifval([$3], -[*) +[@%:@( +*) $3;; ])esac ])# _AC_PATH_PROG_FLAVOR_GNU diff --git a/lib/m4sugar/m4sh.m4 b/lib/m4sugar/m4sh.m4 index ab5ca7db..368487fa 100644 --- a/lib/m4sugar/m4sh.m4 +++ b/lib/m4sugar/m4sh.m4 @@ -1389,7 +1389,7 @@ m4_if([$1], m4_translit([[$1]], [:;]), for as_dir in $as_dummy]) do IFS=$as_save_IFS - case $as_dir in #((( + case $as_dir in @%:@((( '') as_dir=./ ;; */) ;; *) as_dir=$as_dir/ ;; |