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-rw-r--r--lib/regex.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/lib/regex.c b/lib/regex.c
index 6bdd77f50b2..88173bb1052 100644
--- a/lib/regex.c
+++ b/lib/regex.c
@@ -17,6 +17,8 @@
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
+#define __STDC_WANT_IEC_60559_BFP_EXT__
+
#ifndef _LIBC
# include <libc-config.h>