build/pkg-config: improve static linking flags

[dpdk.git] / examples / rxtx_callbacks / Makefile

diff --git a/examples/rxtx_callbacks/Makefile b/examples/rxtx_callbacks/Makefile
index 8ab4756..10e5f14 100644 (file)
--- a/examples/rxtx_callbacks/Makefile
+++ b/examples/rxtx_callbacks/Makefile
@@ -8,23 +8,35 @@ APP = rxtx_callbacks
 SRCS-y := main.c
 
 # Build using pkg-config variables if possible
-$(shell pkg-config --exists libdpdk)
-ifeq ($(.SHELLSTATUS),0)
+ifeq ($(shell pkg-config --exists libdpdk && echo 0),0)
 
-PC_FILE := $(shell pkg-config --path libdpdk)
-CFLAGS += $(shell pkg-config --cflags libdpdk)
-LDFLAGS += $(shell pkg-config --libs libdpdk)
+all: shared
+.PHONY: shared static
+shared: build/$(APP)-shared
+       ln -sf $(APP)-shared build/$(APP)
+static: build/$(APP)-static
+       ln -sf $(APP)-static build/$(APP)
 
-build/$(APP): $(SRCS-y) Makefile $(PC_FILE) | build
-       $(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS)
+PKGCONF ?= pkg-config
+
+PC_FILE := $(shell $(PKGCONF) --path libdpdk 2>/dev/null)
+CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
+LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
+LDFLAGS_STATIC = $(shell $(PKGCONF) --static --libs libdpdk)
+
+build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
+       $(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
+
+build/$(APP)-static: $(SRCS-y) Makefile $(PC_FILE) | build
+       $(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_STATIC)
 
 build:
        @mkdir -p $@
 
 .PHONY: clean
 clean:
-       rm -f build/$(APP)
-       rmdir --ignore-fail-on-non-empty build
+       rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
+       test -d build && rmdir -p build || true
 
 else # Build using legacy build system
 
@@ -32,13 +44,16 @@ ifeq ($(RTE_SDK),)
 $(error "Please define RTE_SDK environment variable")
 endif
 
-# Default target, can be overridden by command line or environment
-RTE_TARGET ?= x86_64-native-linuxapp-gcc
+# Default target, detect a build directory, by looking for a path with a .config
+RTE_TARGET ?= $(notdir $(abspath $(dir $(firstword $(wildcard $(RTE_SDK)/*/.config)))))
 
 include $(RTE_SDK)/mk/rte.vars.mk
 
 CFLAGS += $(WERROR_FLAGS)
 
+# rte_eth_read_clock is experimental
+CFLAGS += -DALLOW_EXPERIMENTAL_API
+
 # workaround for a gcc bug with noreturn attribute
 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12603
 ifeq ($(CONFIG_RTE_TOOLCHAIN_GCC),y)