Hi, This patch fixes a race in libstdc++ testsuite. When we split libstdc++'s testsuite into several parallel instances, it may occur that testing for features (check_v3_target_fileio in this case) is done in two sub-processes at the same time. The race occurs on the cin_unget-1.txt data file, with one thread overwriting the file that was created by another thread.
The fix is to use unique name cin_unget-1-[pid].txt for the data file. Tested on x86_64-linux-gnu. OK to apply? -- Maxim Kuvyrkov www.linaro.org
0001-Fix-race-in-libstdc-testsuite.ChangeLog
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0001-Fix-race-in-libstdc-testsuite.patch
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