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unsetenv(3) returns int, not void

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This compatilibity implementation has been returning a wrong type,
ever since 731043fd (Add compat/unsetenv.c ., 2006-01-25) added to
the system, yet nobody noticed it in the past 16 years, presumably
because no code checks failures in their unsetenv() calls.  Sigh.

For now, make it always succeed.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2021-10-29 14:42:12 -07:00
parent af6d1d602a
commit a38989bd5b
2 changed files with 4 additions and 2 deletions
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4
compat/unsetenv.c
View file

@ -1,6 +1,6 @@
#include "../git-compat-util.h"
void gitunsetenv (const char *name)
int gitunsetenv(const char *name)
{
#if !defined(__MINGW32__)
extern char **environ;
@ -24,4 +24,6 @@ void gitunsetenv (const char *name)
++dst;
}
environ[dst] = NULL;
return 0;
}

2
git-compat-util.h
View file

@ -726,7 +726,7 @@ char *gitmkdtemp(char *);
#ifdef NO_UNSETENV
#define unsetenv gitunsetenv
void gitunsetenv(const char *);
int gitunsetenv(const char *);
#endif
#ifdef NO_STRCASESTR