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rt: Fix compilation error with modern GCC/glibc. #1780

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rt: Fix compilation error with modern GCC/glibc. #1780

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8 changes: 7 additions & 1 deletion src/rt/rust_run_program.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -153,7 +153,13 @@ rust_run_program(const char* argv[],
if (err_fd) dup2(err_fd, 2);
/* Close all other fds. */
for (int fd = getdtablesize() - 1; fd >= 3; fd--) close(fd);
if (dir) { chdir(dir); }
if (dir) {
/* FIXME: Hack to get around GCC 4.6 warnings: chdir is marked __attribute__((warn_unused_result))
Realistically it's in good faith; this should be checked for failure.
*/
int _chdir_res __attribute__((unused));
_chdir_res = chdir(dir);
}

#ifdef __APPLE__
if (envp) {
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