From: Taylor Blau <me@ttaylorr.com>
To: git@vger.kernel.org
Cc: Junio C Hamano <gitster@pobox.com>,
"Randall S. Becker" <randall.becker@nexbridge.ca>,
Elijah Newren <newren@gmail.com>
Subject: [PATCH] run-command.c: fix missing include under `NO_PTHREADS`
Date: Tue, 16 May 2023 13:56:21 -0400 [thread overview]
Message-ID: <db403de74da839084165f11dab05d71484457c6f.1684259780.git.me@ttaylorr.com> (raw)
In-Reply-To: <ZGO4LesPe4A2ftdm@nand.local>
When building git with `NO_PTHREADS=YesPlease`, we fail to build
run-command.o since we don't have a definition for ALLOC_GROW:
$ make NO_PTHREADS=1 DEVELOPER=1 run-command.o
GIT_VERSION = 2.41.0.rc0.1.g787eb3beae.dirty
CC run-command.o
run-command.c: In function ‘git_atexit’:
run-command.c:1103:9: error: implicit declaration of function ‘ALLOC_GROW’ [-Werror=implicit-function-declaration]
1103 | ALLOC_GROW(git_atexit_hdlrs.handlers, git_atexit_hdlrs.nr + 1, git_atexit_hdlrs.alloc);
| ^~~~~~~~~~
cc1: all warnings being treated as errors
make: *** [Makefile:2715: run-command.o] Error 1
This bisects to 36bf195890 (alloc.h: move ALLOC_GROW() functions from
cache.h, 2023-02-24), which replaced includes of "cache.h" with
"alloc.h", which is the new home of `ALLOC_GROW()` (and
`ALLOC_GROW_BY()`).
run-command.c compiles fine when `NO_PTHREADS` is undefined, since its
use of `ALLOC_GROW()` is behind a `#ifndef NO_PTHREADS`. (Everything
else compiles fine when NO_PTHREADS is defined, so this is the only spot
that needs fixing).
We could fix this by conditionally including "alloc.h" when
`NO_PTHREADS` is defined. But we have relatively few examples of
conditional includes throughout the tree[^1].
Instead, include "alloc.h" unconditionally in run-command.c to allow it
to successfully compile even when NO_PTHREADS is defined.
[^1]: With `git grep -E -A1 '#if(n)?def' -- **/*.c | grep '#include' -B1`.
Reported-by: Randall S. Becker <randall.becker@nexbridge.ca>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
---
run-command.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/run-command.c b/run-command.c
index d4247d5fcc..60c9419866 100644
--- a/run-command.c
+++ b/run-command.c
@@ -16,6 +16,7 @@
#include "packfile.h"
#include "hook.h"
#include "compat/nonblock.h"
+#include "alloc.h"
void child_process_init(struct child_process *child)
{
--
2.41.0.rc0.dirty
next prev parent reply other threads:[~2023-05-16 17:56 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-16 16:58 [BUG] Git 2.41.0-rc0 - Compile Error ALLOC_GROW rsbecker
2023-05-16 17:06 ` Taylor Blau
2023-05-16 17:19 ` Junio C Hamano
2023-05-16 17:24 ` [PATCH] run-command.c: need alloc.h for our own at-exit handler emulation Junio C Hamano
2023-05-16 17:33 ` rsbecker
2023-05-16 17:57 ` Taylor Blau
2023-05-16 18:01 ` Taylor Blau
2023-05-16 18:44 ` Junio C Hamano
2023-05-16 18:47 ` Taylor Blau
2023-05-16 18:53 ` Junio C Hamano
2023-05-16 17:56 ` Taylor Blau [this message]
2023-05-16 19:12 ` [PATCH] run-command.c: fix missing include under `NO_PTHREADS` Junio C Hamano
2023-05-16 19:13 ` rsbecker
2023-05-16 21:33 ` Taylor Blau
2023-05-18 4:16 ` Elijah Newren
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