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| author | Jim Meyering <meyering@fb.com> | 2016-09-08 18:58:43 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2016-09-08 19:16:35 -0700 |
| commit | b3da45ad5e71c9bdad73a839809964550b506eeb (patch) | |
| tree | b332ff77ec6ca7d9aad8cb7934f0e9e29f8ccef3 | |
| parent | e363f9a4b59e418bb60e551b6a1d254e9bbc2343 (diff) | |
| download | automake-b3da45ad5e71c9bdad73a839809964550b506eeb.tar.gz | |
automake: do not emit rule with two dependents
On a system using our replacement alloca, make would emit
this warning:
target '.deps/alloca.Po' given more than once in the same rule
That arose because automake would emit a rule depending on both
./.deps/alloca.Po and .deps/alloca.Po. Normally, duplicate
dependents are avoided by virtue of their names being keys in
the %dep_files hash, but in this case, that particular file
was specified in two different ways.
* bin/automake.in (handle_ALLOCA): When the $dir prefix is empty,
make it './', to ensure that when we add ./.deps/alloca.Po
it is deduped.
See: http://bugs/gnu/org/22702
| -rw-r--r-- | bin/automake.in | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/bin/automake.in b/bin/automake.in index 2c8f31e14..5cacf633e 100644 --- a/bin/automake.in +++ b/bin/automake.in @@ -2297,6 +2297,7 @@ sub handle_ALLOCA $lt ||= ''; my $dir = handle_LIBOBJS_or_ALLOCA "${lt}ALLOCA"; + $dir eq '' and $dir = './'; $var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA'); $dep_files{$dir . '$(DEPDIR)/alloca.P' . $myobjext} = 1; require_libsource_with_macro ($cond, $var, FOREIGN, 'alloca.c'); |