From ea471349bfe6f6a95877947db18f72c4cf693630 Mon Sep 17 00:00:00 2001
From: Tobias Klauser <tklauser@distanz.ch>
Date: Fri, 15 Aug 2014 10:23:32 +0200
Subject: build: Add build flag to enable sparse checking of C source files

Similar to the 'make C=1' for the Linux kernel, wire up the sparse
command for our build system in a similar fashion. Use 'make C=1 [tool]'
to check the source files using sparse. Of course, the sparse tool needs
to be installed and available in your $PATH for this to work.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
---
 Makefile | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 03eaa61..c2735fa 100644
--- a/Makefile
+++ b/Makefile
@@ -107,6 +107,9 @@ ifeq ("$(origin CROSS_LD_LIBRARY_PATH)", "command line")
   LDFLAGS += -L$(CROSS_LD_LIBRARY_PATH)
 endif
 
+CHECKFLAGS = -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix \
+	     -Wbitwise -Wnoreturn-void
+
 VERSION_SHORT  =  $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 VERSION_STRING = "$(VERSION_SHORT)$(CONFIG_RC)"
 VERSION_LONG   = "$(VERSION_SHORT)$(CONFIG_RC) ($(NAME))"
-- 
cgit v1.2.3-54-g00ecf