Add the macro _GNU_SOURCE, so that compilation does not terminate.

Signed-off-by: Muhammad Falak R Wani <falakre...@gmail.com>
---
 tools/testing/selftests/intel_pstate/run.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/intel_pstate/run.sh 
b/tools/testing/selftests/intel_pstate/run.sh
index bdaf37e..7868c10 100755
--- a/tools/testing/selftests/intel_pstate/run.sh
+++ b/tools/testing/selftests/intel_pstate/run.sh
@@ -32,7 +32,7 @@ EVALUATE_ONLY=0
 max_cpus=$(($(nproc)-1))
 
 # compile programs
-gcc -o aperf aperf.c -lm
+gcc aperf.c -Wall -D_GNU_SOURCE -o aperf  -lm
 [ $? -ne 0 ] && echo "Problem compiling aperf.c." && exit 1
 gcc -o msr msr.c -lm
 [ $? -ne 0 ] && echo "Problem compiling msr.c." && exit 1
-- 
1.9.1

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