Building git on Ubuntu 9.10 warns that the return value of write(2)
isn't checked. These warnings were introduced in commits:
2b541bf8 ("start_command: detect execvp failures early")
a5487ddf ("start_command: report child process setup errors to the
parent's stderr")
GCC details:
$ gcc --version
gcc (Ubuntu 4.4.1-4ubuntu9) 4.4.1
Silence the warnings by reading (but not making use of) the return value
of write(2).
Signed-off-by: Michael Wookey <michaelwookey@xxxxxxxxx>
---
Although this will fix the build warnings, I am unsure if there is a
better way to achieve the same result. Using "(void)write(...)" still
gives warnings and I am unaware of any annotations that will silence
gcc.
run-command.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/run-command.c b/run-command.c
index 2feb493..3206d61 100644
--- a/run-command.c
+++ b/run-command.c
@@ -67,19 +67,21 @@ static int child_notifier = -1;
static void notify_parent(void)
{
- write(child_notifier, "", 1);
+ ssize_t unused;
+ unused = write(child_notifier, "", 1);
}
static NORETURN void die_child(const char *err, va_list params)
{
char msg[4096];
+ ssize_t unused;
int len = vsnprintf(msg, sizeof(msg), err, params);
if (len > sizeof(msg))
len = sizeof(msg);
- write(child_err, "fatal: ", 7);
- write(child_err, msg, len);
- write(child_err, "\n", 1);
+ unused = write(child_err, "fatal: ", 7);
+ unused = write(child_err, msg, len);
+ unused = write(child_err, "\n", 1);
exit(128);
}
--
1.7.0.rc0.48.gdace5
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