[openwrt/openwrt] firmware-utils: mkdlinkfw: compile as gnu99

[LEDE Commits]

mkresin pushed a commit to openwrt/openwrt.git, branch master:
https://git.lede-project.org/9fc916a40cadf1a00e2d231426bdaa9f8f63ecf6

commit 9fc916a40cadf1a00e2d231426bdaa9f8f63ecf6
Author: Mathias Kresin <dev at kresin.me>
AuthorDate: Mon Mar 19 08:10:14 2018 +0100

    firmware-utils: mkdlinkfw: compile as gnu99
    
    Compile as gnu99 to fix the build.
    
    Signed-off-by: Mathias Kresin <dev at kresin.me>
---
 tools/firmware-utils/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/firmware-utils/Makefile b/tools/firmware-utils/Makefile
index 7fa6f71..ba4df64 100644
--- a/tools/firmware-utils/Makefile
+++ b/tools/firmware-utils/Makefile
@@ -81,7 +81,7 @@ define Host/Compile
 	$(call cc,mkbuffaloimg, -Wall)
 	$(call cc,zyimage, -Wall)
 	$(call cc,mkdhpimg buffalo-lib, -Wall)
-	$(call cc,mkdlinkfw mkdlinkfw-lib, -lz -Wall)
+	$(call cc,mkdlinkfw mkdlinkfw-lib, -lz -Wall --std=gnu99)
 endef
 
 define Host/Install