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ENH more makefile updates (#2133)

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This commit proposes a simpler single compiler specification for OSX and *nix. It also let's people override the setting on both systems, not just *nix.
This commit is contained in:
Matthew R. Becker 2017-03-22 16:22:16 -05:00 committed by Yuan (Terry) Tang
parent cc012dac68
commit a4bae1bdcd
1 changed files with 16 additions and 12 deletions
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28
Makefile
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@ -31,20 +31,24 @@ include $(DMLC_CORE)/make/dmlc.mk
# include the plugins
include $(XGB_PLUGINS)
# use customized config file
ifndef CC
export CC = $(if $(shell which gcc-6),gcc-6,gcc)
endif
ifndef CXX
export CXX = $(if $(shell which g++-6),g++-6,g++)
endif
# on Mac OS X, force brew gcc-6, since the Xcode c++ fails anyway
# it is useful for pip install compiling-on-the-fly
# set compiler defaults for OSX versus *nix
# let people override either
OS := $(shell uname)
ifeq ($(OS), Darwin)
export CC = $(if $(shell which gcc-6),gcc-6,$(if $(shell which gcc-mp-6), gcc-mp-6, $(if $(shell which gcc), gcc, clang)))
export CXX = $(if $(shell which g++-6),g++-6,$(if $(shell which g++-mp-6),g++-mp-6, $(if $(shell which g++), g++, clang++)))
ifndef CC
export CC = $(if $(shell which clang), clang, gcc)
endif
ifndef CXX
export CXX = $(if $(shell which clang++), clang++, g++)
endif
else
# linux defaults
ifndef CC
export CC = gcc
endif
ifndef CXX
export CXX = g++
endif
endif
export LDFLAGS= -pthread -lm $(ADD_LDFLAGS) $(DMLC_LDFLAGS) $(PLUGIN_LDFLAGS)