Limbo 3.5.4
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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)

# ==========================================================================
# Compilation Platform
# ==========================================================================
# detect platform
# determine linking flags
UNAME_S = $(shell uname -s)
ifeq ($(UNAME_S), Linux)
STATIC_LINK_FLAG = -Wl,-Bstatic # ld under Linux has fine control
DYNAMIC_LINK_FLAG = -Wl,-Bdynamic # ld under Linux has fine control
endif
ifeq ($(UNAME_S), Darwin)
STATIC_LINK_FLAG = # dummy flags for linker
DYNAMIC_LINK_FLAG = # dummy flags for linker
endif
# ==========================================================================
# Compilation Flags
# ==========================================================================
# set CC, CXX, FC, AR
include $(LIMBO_DIR)/include/limbo/makeutils/FindCompiler.mk
# dependency to Boost and get BOOST_LINK_FLAG
include $(LIMBO_DIR)/include/limbo/makeutils/FindBoost.mk
# view compiler settings and BOOST_LINK_FLAG
$(info Compilers: CC = $(CC), CXX = $(CXX), FC = $(FC), AR = $(AR))
$(info Boost: BOOST_LINK_FLAG = $(BOOST_LINK_FLAG))
all: test
# the appending DYNAMIC_LINK_FLAG is used to recover the linking flag
test: test.cpp
$(CXX) -o $@ $< -I $(BOOST_DIR) $(BOOST_LINK_FLAG) -L $(BOOST_DIR)/lib -lboost_iostreams $(DYNAMIC_LINK_FLAG)

References

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