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-rw-r--r--libc/unistd/usershell.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libc/unistd/usershell.c b/libc/unistd/usershell.c
index b1a932918..96ceaca51 100644
--- a/libc/unistd/usershell.c
+++ b/libc/unistd/usershell.c
@@ -30,6 +30,7 @@
* November 2002, Erik Andersen <andersen@codepoet.org>
*/
+#define _GNU_SOURCE
#include <sys/param.h>
#include <sys/file.h>
#include <sys/stat.h>