1 files changed, 1 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 7b64106930..73edfa7824 100644
--- a/Makefile
+++ b/Makefile
@@ -1198,6 +1198,7 @@ endif
 # Set CFLAGS, LDFLAGS and other *FLAGS variables. These might be
 # tweaked by config.* below as well as the command-line, both of
 # which'll override these defaults.
+# Older versions of GCC may require adding "-std=gnu99" at the end.
 CFLAGS = -g -O2 -Wall
 LDFLAGS =
 CC_LD_DYNPATH = -Wl,-rpath,