fasteig/make.inc.mac at main · BerkeleyLab/fasteig · GitHub

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# macOS build configuration (local development)
#
# Usage:
#   make MAKEINC=make.inc.mac
#   make -C src MAKEINC=../make.inc.mac
#   make -C examples MAKEINC=../make.inc.mac
#
# Prereqs:
#   - Eigen headers installed (e.g. `brew install eigen`)
#     Typical include path: /opt/homebrew/include/eigen3 (Apple Silicon)
#                          /usr/local/include/eigen3    (Intel)

# Repository root (works even when included from src/ or examples/)
HOME := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))

PLAT ?= Mac

CXX ?= clang++
CC  ?= clang
MAKE ?= make

AR     ?= ar
ARFLAGS?= rcs
RANLIB ?= ranlib
ECHO   ?= echo

# Eigen include root (should contain Eigen/Dense).
EIGEN ?= /opt/homebrew/include/eigen3
ifeq ($(wildcard $(EIGEN)/Eigen/Dense),)
  EIGEN := /usr/local/include/eigen3
endif

# Optional OpenMP (recommended for performance).
# Install with: `brew install libomp`
LIBOMP_PREFIX ?= /opt/homebrew/opt/libomp
ifeq ($(wildcard $(LIBOMP_PREFIX)/include/omp.h),)
  LIBOMP_PREFIX := /usr/local/opt/libomp
endif

OMP_CXXFLAGS :=
OMP_LDFLAGS  :=
ifeq ($(wildcard $(LIBOMP_PREFIX)/include/omp.h),)
  # OpenMP not found: build will still work, but runs single-threaded.
else
  OMP_CXXFLAGS := -Xpreprocessor -fopenmp -I$(LIBOMP_PREFIX)/include
  OMP_LDFLAGS  := -L$(LIBOMP_PREFIX)/lib -lomp
endif

# Optional BLAS/LAPACK (empty by default).
MKL    ?=
LDFLAGS?=

CXXFLAGS ?= -O3 -DNDEBUG -std=c++17 -I$(HOME)/include -I$(EIGEN) $(OMP_CXXFLAGS)
LDFLAGS  += $(OMP_LDFLAGS)

LIBFASTEIG = $(HOME)/libfasteig_$(PLAT).a