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| author | Đoàn Trần Công Danh <congdanhqx@gmail.com> | 2024-07-17 06:17:41 +0700 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2025-04-09 08:42:59 -0700 |
| commit | da87b58014c1673ed8c47a14d315ad5ad4d801db (patch) | |
| tree | b3dec8c59a88308fc5db31fc1702a923f8f1e368 | |
| parent | 683c54c999c301c2cd6f715c411407c413b1d84e (diff) | |
| download | git-da87b58014c1673ed8c47a14d315ad5ad4d801db.tar.gz | |
sparse: ignore warning from new glibc headers
With at least glibc 2.39, glibc provides a function declaration that
matches with this POSIX interface:
int regexec(const regex_t *restrict preg, const char *restrict string,
size_t nmatch, regmatch_t pmatch[restrict], int eflags);
such prototype requires variable-length-array for `pmatch'.
Thus, sparse reports this error:
> ../add-patch.c: note: in included file (through ../git-compat-util.h):
> /usr/include/regex.h:682:41: error: undefined identifier '__nmatch'
> /usr/include/regex.h:682:41: error: bad constant expression type
> /usr/include/regex.h:682:41: error: Variable length array is used.
Note: `__nmatch' is POSIX's nmatch.
The glibc's intention is informing their users to provides a large
enough buffer to hold `__nmatch' results and provides diagnosis if
necessary. It's merely a glibc' implementation detail.
Hide that usage from sparse by using standard C11's macro:
__STDC_NO_VLA__
Signed-off-by: Đoàn Trần Công Danh <congdanhqx@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -1409,7 +1409,7 @@ ARFLAGS = rcs PTHREAD_CFLAGS = # For the 'sparse' target -SPARSE_FLAGS ?= -std=gnu99 +SPARSE_FLAGS ?= -std=gnu99 -D__STDC_NO_VLA__ SP_EXTRA_FLAGS = # For informing GIT-BUILD-OPTIONS of the SANITIZE=leak,address targets |