Instructions to build on older Macintosh

[stockfish] / src / Makefile

diff --git a/src/Makefile b/src/Makefile
index 79c7333ac26edc43fe73f3a44c8ad29e86296ca2..b0274504227f37358a7751f4d184ba0f6cb438fa 100644 (file)
--- a/src/Makefile
+++ b/src/Makefile
@@ -302,9 +302,6 @@ ifeq ($(COMP),gcc)
        ifneq ($(KERNEL),Darwin)
           LDFLAGS += -Wl,--no-as-needed
        endif
-
-       gccversion = $(shell $(CXX) --version)
-       gccisclang = $(findstring clang,$(gccversion))
 endif
 
 ifeq ($(COMP),mingw)
@@ -373,9 +370,10 @@ else
 endif
 endif
 
-ifeq ($(KERNEL),Darwin)
+ifeq ($(KERNEL),Darwin) 
        CXXFLAGS += -arch $(arch) -mmacosx-version-min=10.14
        LDFLAGS += -arch $(arch) -mmacosx-version-min=10.14
+       XCRUN = xcrun
 endif
 
 # To cross-compile for Android, NDK version r21 or later is recommended.
@@ -407,8 +405,19 @@ ifdef COMPCXX
        CXX=$(COMPCXX)
 endif
 
+### Sometimes gcc is really clang
+ifeq ($(COMP),gcc)
+       gccversion = $(shell $(CXX) --version)
+       gccisclang = $(findstring clang,$(gccversion))
+       ifneq ($(gccisclang),)
+               profile_make = clang-profile-make
+               profile_use = clang-profile-use
+       endif
+endif
+
 ### On mingw use Windows threads, otherwise POSIX
 ifneq ($(comp),mingw)
+       CXXFLAGS += -DUSE_PTHREADS
        # On Android Bionic's C library comes with its own pthread implementation bundled in
        ifneq ($(OS),Android)
                # Haiku has pthreads in its libroot, so only link it in on other platforms
@@ -798,7 +807,7 @@ clang-profile-make:
        all
 
 clang-profile-use:
-       llvm-profdata merge -output=stockfish.profdata *.profraw
+       $(XCRUN) llvm-profdata merge -output=stockfish.profdata *.profraw
        $(MAKE) ARCH=$(ARCH) COMP=$(COMP) \
        EXTRACXXFLAGS='-fprofile-instr-use=stockfish.profdata' \
        EXTRALDFLAGS='-fprofile-use ' \