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libgo/runtime: fix unused-result warning

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Result of runtime_write is ignored, causing
an unused-result result warning (error in my
case, with -Werror=unused-result).

From-SVN: r210987
This commit is contained in:
Ian Lance Taylor 2014-05-27 22:01:21 +00:00
parent b8aac16d88
commit 25e4b0497b
1 changed files with 2 additions and 1 deletions
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3
libgo/runtime/proc.c
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@ -1117,7 +1117,8 @@ runtime_needm(void)
if(runtime_needextram) {
// Can happen if C/C++ code calls Go from a global ctor.
// Can not throw, because scheduler is not initialized yet.
runtime_write(2, "fatal error: cgo callback before cgo call\n",
int rv __attribute__((unused));
rv = runtime_write(2, "fatal error: cgo callback before cgo call\n",
sizeof("fatal error: cgo callback before cgo call\n")-1);
runtime_exit(1);
}