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-rw-r--r--programs/platform.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/programs/platform.h b/programs/platform.h
index 38ded872743e..5934e59cf12d 100644
--- a/programs/platform.h
+++ b/programs/platform.h
@@ -92,7 +92,7 @@ extern "C" {
# if defined(__linux__) || defined(__linux)
# ifndef _POSIX_C_SOURCE
-# define _POSIX_C_SOURCE 200112L /* feature test macro : https://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html */
+# define _POSIX_C_SOURCE 200809L /* feature test macro : https://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html */
# endif
# endif
# include <unistd.h> /* declares _POSIX_VERSION */