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Limbo.MakeUtils

Table of Contents

Introduction

It offers various small makefile utilities to find compilers and external packages with suitable linking flags.

Examples

Example of usage in Makefile (assuming BOOST_DIR and LIMBO_DIR are exported as the environment variable to the path where Boost and limbo library are installed)

1 # ==========================================================================
2 # Compilation Platform
3 # ==========================================================================
4 
5 # detect platform
6 # determine linking flags
7 UNAME_S = $(shell uname -s)
8 ifeq ($(UNAME_S), Linux)
9  STATIC_LINK_FLAG = -Wl,-Bstatic # ld under Linux has fine control
10  DYNAMIC_LINK_FLAG = -Wl,-Bdynamic # ld under Linux has fine control
11 endif
12 ifeq ($(UNAME_S), Darwin)
13  STATIC_LINK_FLAG = # dummy flags for linker
14  DYNAMIC_LINK_FLAG = # dummy flags for linker
15 endif
16 
17 # ==========================================================================
18 # Compilation Flags
19 # ==========================================================================
20 
21 # set CC, CXX, FC, AR
22 include $(LIMBO_DIR)/include/limbo/makeutils/FindCompiler.mk
23 # dependency to Boost and get BOOST_LINK_FLAG
24 include $(LIMBO_DIR)/include/limbo/makeutils/FindBoost.mk
25 
26 # view compiler settings and BOOST_LINK_FLAG
27 $(info Compilers: CC = $(CC), CXX = $(CXX), FC = $(FC), AR = $(AR))
28 $(info Boost: BOOST_LINK_FLAG = $(BOOST_LINK_FLAG))
29 
30 all: test
31 
32 # the appending DYNAMIC_LINK_FLAG is used to recover the linking flag
33 test: test.cpp
34  $(CXX) -o $@ $< -I $(BOOST_DIR) $(BOOST_LINK_FLAG) -L $(BOOST_DIR)/lib -lboost_iostreams $(DYNAMIC_LINK_FLAG)

References

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