Makevars and Renviron to use with Homebrew + OpenBLAS + OpenMP

.Renviron

# ---------
# .Renviron
# ---------

PKG_CONFIG_PATH=/opt/X11/lib/pkgconfig

Makevars

# --------
# Makevars
# --------

# General note
# - need to repeat options across C++ flavors (e.g., 11, 14)

# Homebrew bin / opt / lib locations
HB=/usr/local/bin
HO=/usr/local/opt
HL=/usr/local/lib
HI=/usr/local/include

# MacOS Xcode header location (August 2019)
# (do "xcrun -show-sdk-path" in terminal to get path; change if yours is different)
XH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk

# ccache
CCACHE=$(HB)/ccache

# Make using all cores (set # to # of cores on your machine)
MAKE=make -j4

# GNU version (August 2019)
GNU_VER=9

# LLVM (Clang) compiler options
CC=$(CCACHE) $(HO)/llvm/bin/clang
CXX=$(CC)++
CXX98=$(CC)++
CXX11=$(CC)++
CXX14=$(CC)++
CXX17=$(CC)++

# FORTRAN
FC=$(CCACHE) $(HB)/gfortran-$(GNU_VER)
F77=$(FC)
FLIBS=-L$(HL)/gcc/$(GNU_VER) -lgfortran -lquadmath -lm

# STD libraries
CXX1XSTD=-std=c++0x
CXX11STD=-std=c++11
CXX14STD=-std=c++14
CXX17STD=-std=c++17

# FLAGS
STD_FLAGS=-g -O3 -Wall -pedantic -mtune=native -pipe
CFLAGS=$(STD_FLAGS)
CXXFLAGS=$(STD_FLAGS)
CXX98FLAGS=$(STD_FLAGS)
CXX11FLAGS=$(STD_FLAGS)
CXX14FLAGS=$(STD_FLAGS)
CXX17FLAGS=$(STD_FLAGS)

# Preprocessor FLAGS
# NB: -isysroot refigures the include path to the Xcode SDK we set above
CPPFLAGS=-isysroot $(XH) -I$(HI) \
	-I$(HO)/llvm/include -I$(HO)/openssl/include \
	-I$(HO)/gettext/include	-I$(HO)/tcl-tk/include

# Linker flags (suggested by homebrew)
LDFLAGS+=-L$(HO)/llvm/lib -Wl,-rpath,$(HO)/llvm/lib

# Flags for OpenMP support that should allow packages that want to use
# OpenMP to do so (data.table), and other packages that bork with
# -fopenmp flag (stringi) to be left alone
SHLIB_OPENMP_CFLAGS=-fopenmp
SHLIB_OPENMP_CXXFLAGS=-fopenmp
SHLIB_OPENMP_CXX98FLAGS=-fopenmp
SHLIB_OPENMP_CXX11FLAGS=-fopenmp
SHLIB_OPENMP_CXX14FLAGS=-fopenmp
SHLIB_OPENMP_CXX17FLAGS=-fopenmp
SHLIB_OPENMP_FCFLAGS=-fopenmp
SHLIB_OPENMP_FFLAGS=-fopenmp