examples: warn about broken pkg-config
[dpdk.git] / examples / flow_filtering / Makefile
1 # SPDX-License-Identifier: BSD-3-Clause
2 # Copyright 2017 Mellanox Technologies, Ltd
3
4 APP = flow
5
6 SRCS-y := main.c
7
8 # Build using pkg-config variables if possible
9 ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
10 $(error "no installation of DPDK found")
11 endif
12
13 all: shared
14 .PHONY: shared static
15 shared: build/$(APP)-shared
16         ln -sf $(APP)-shared build/$(APP)
17 static: build/$(APP)-static
18         ln -sf $(APP)-static build/$(APP)
19
20 PKGCONF ?= pkg-config
21
22 PC_FILE := $(shell $(PKGCONF) --path libdpdk 2>/dev/null)
23 CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
24 LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
25 LDFLAGS_STATIC = $(shell $(PKGCONF) --static --libs libdpdk)
26
27 ifeq ($(MAKECMDGOALS),static)
28 # check for broken pkg-config
29 ifeq ($(shell echo $(LDFLAGS_STATIC) | grep 'whole-archive.*l:lib.*no-whole-archive'),)
30 $(warning "pkg-config output list does not contain drivers between 'whole-archive'/'no-whole-archive' flags.")
31 $(error "Cannot generate statically-linked binaries with this version of pkg-config")
32 endif
33 endif
34
35 CFLAGS += -DALLOW_EXPERIMENTAL_API
36
37 build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
38         $(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
39
40 build/$(APP)-static: $(SRCS-y) Makefile $(PC_FILE) | build
41         $(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_STATIC)
42
43 build:
44         @mkdir -p $@
45
46 .PHONY: clean
47 clean:
48         rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
49         test -d build && rmdir -p build || true