1--- third_party/ltp/testcases/open_posix_testsuite/CFLAGS 2020-08-29 16:32:39.817825435 +0800 2+++ test/xts/acts/open_posix_testsuite/ltp-patch/CFLAGS 2020-08-29 16:33:09.077825435 +0800 3@@ -1 +1 @@ 4--std=c99 -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700 -W -Wall 5+-std=c99 -D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE=700 6