Merge "regex: avoid a namespace collision with C23 <float.h>." into main
diff --git a/libc/upstream-netbsd/lib/libc/regex/utils.h b/libc/upstream-netbsd/lib/libc/regex/utils.h
index 972f555..8650dd4 100644
--- a/libc/upstream-netbsd/lib/libc/regex/utils.h
+++ b/libc/upstream-netbsd/lib/libc/regex/utils.h
@@ -63,6 +63,7 @@
 
 /* utility definitions */
 #define	DUPMAX		_POSIX2_RE_DUP_MAX	/* xxx is this right? */
+#undef INFINITY // Android-added: avoid collision with C23 <float.h> INFINITY (via <limits.h>)
 #define	INFINITY	(DUPMAX + 1)
 
 #define	NC_MAX		(CHAR_MAX - CHAR_MIN + 1)