make safe_flag check compatible with POSIX sh

2018-10-23 15:55:45 -04:00 · 2018-10-23 15:55:45 -04:00 · 9d1567ce16
parent 59def67979
commit 9d1567ce16
1 changed files with 1 additions and 1 deletions
--- a/2
+++ b/2
@ -3,7 +3,7 @@ CONFIG_UBSAN := false
 CONFIG_SEAL_METADATA := false

 define safe_flag
-$(shell $(CC) -E $1 - </dev/null &>/dev/null && echo $1)
+$(shell $(CC) -E $1 - </dev/null >/dev/null 2>&1 && echo $1)
 endef

 CPPFLAGS := -D_GNU_SOURCE