[dpdk-dev] [vmxnet3-usermap PATCH 04/16] pmd: add make help

[Thomas Monjalon <thomas.monjalon@6wind.com>]

Add help for quick tips.
Also define CC and remove RTE_CONFIG variable.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
---
 pmd/Makefile |   21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/pmd/Makefile b/pmd/Makefile
index 994851c..d8eff33 100644
--- a/pmd/Makefile
+++ b/pmd/Makefile
@@ -1,4 +1,4 @@
-# Copyright 2013 6WIND S.A.
+# Copyright 2013-2014 6WIND S.A.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions
@@ -29,24 +29,33 @@
 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 # OF THE POSSIBILITY OF SUCH DAMAGE.
 
+SOLIB = librte_pmd_vmxnet3.so
+
+CC = $(CROSS)gcc
 override CPPFLAGS += -Wall -Wextra -Werror
 override CFLAGS   += -fPIC
 override LDFLAGS  += -shared
 
 KMOD_INCLUDE ?= ../kmod
-RTE_CONFIG = $(RTE_INCLUDE)/rte_config.h
-SOLIB = librte_pmd_vmxnet3.so
 
 all :
 ifeq '$(RTE_INCLUDE)' ''
 	@ echo 'ERROR: RTE_INCLUDE is not set' && false
 endif
-	$(CROSS)gcc $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) \
-		-I$(RTE_INCLUDE) -include $(RTE_CONFIG) \
+	$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) \
+		-I$(RTE_INCLUDE) -include $(RTE_INCLUDE)/rte_config.h \
 		-I$(KMOD_INCLUDE) -I$(KMOD_INCLUDE)/shared \
 		-o $(SOLIB) vmxnet3.c
 
 clean :
 	rm -f $(SOLIB)
 
-.PHONY : all clean
+help :
+	@ echo 'rules:'
+	@ echo '    all (default)'
+	@ echo '    clean'
+	@ echo 'build variables:'
+	@ echo '    RTE_INCLUDE (e.g. ../dpdk/build/include),'
+	@ echo '    CPPFLAGS, CFLAGS, LDFLAGS'
+
+.PHONY : all clean help
-- 
1.7.10.4