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compat/posix.h: simplify GIT_GNUC_PREREQ() comparison

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GIT_GNUC_PREREQ() uses a glibc-style bit-shift version comparison,
which is harder to read than an explicit major/minor comparison.

Use an explicit comparison, as in many BSD <sys/cdefs.h> headers, and
drop the Linux header attribution comment because it no longer applies.

Signed-off-by: Dominik Loidolt <dominik.loidolt@univie.ac.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Dominik Loidolt
2026-06-13 14:27:11 +02:00
committed by Junio C Hamano
parent ffd45926dc
commit cf48887610
1 changed files with 2 additions and 2 deletions
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4
compat/posix.h
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@@ -4,7 +4,6 @@
#define _FILE_OFFSET_BITS 64
/*
* Derived from Linux "Features Test Macro" header
* Convenience macros to test the versions of GCC (or a compatible compiler).
* Use them like this:
* #if GIT_GNUC_PREREQ (2,8)
@@ -19,7 +18,8 @@
*/
#if defined(__GNUC__) && defined(__GNUC_MINOR__)
# define GIT_GNUC_PREREQ(maj, min) \
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
((__GNUC__ > (maj)) || \
(__GNUC__ == (maj) && __GNUC_MINOR__ >= (min)))
#else
# define GIT_GNUC_PREREQ(maj, min) 0
#endif