Add comments explaining changes to upstream source files.

[wasi-libc.git] / libc-top-half / musl / src / stdio / vfprintf.c

diff --git a/libc-top-half/musl/src/stdio/vfprintf.c b/libc-top-half/musl/src/stdio/vfprintf.c
index aedf5545f3a0bd957236ad10eae703f8498b53f9..91d9a69984b2fd028a931a88f26abd2ecfc93a12 100644 (file)
--- a/libc-top-half/musl/src/stdio/vfprintf.c
+++ b/libc-top-half/musl/src/stdio/vfprintf.c
@@ -10,7 +10,7 @@
 #include <inttypes.h>
 #include <math.h>
 #include <float.h>
-#ifdef __wasilibc_unmodified_upstream
+#ifdef __wasilibc_unmodified_upstream // Changes to optimize printf/scanf when long double isn't needed
 #else
 #include "printscan.h"
 #endif