Fix the build when _GNU_SOURCE is defined to a non-empty value

Fix #3432.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2020-09-30 22:18:13 +02:00
parent c6468ee247
commit a1f9ef0615
2 changed files with 4 additions and 1 deletions

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@ -0,0 +1,3 @@
Bugfix
* Fix the build when the macro _GNU_SOURCE is defined to a non-empty value.
Fix #3432.

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@ -17,7 +17,7 @@
* limitations under the License.
*/
#if defined(__linux__)
#if defined(__linux__) && !defined(_GNU_SOURCE)
/* Ensure that syscall() is available even when compiling with -std=c99 */
#define _GNU_SOURCE
#endif