Fix parallel LTO issues on Windows

[stockfish] / src / Makefile

diff --git a/src/Makefile b/src/Makefile
index a48e7dcb3ccd481ae6868b8e430d15ba00756c41..fd2618a47b276de1cfbf902af607e41e49db1b14 100644 (file)
--- a/src/Makefile
+++ b/src/Makefile
@@ -86,6 +86,7 @@ sanitize = no
 bits = 64
 prefetch = no
 popcnt = no
+mmx = no
 sse = no
 ssse3 = no
 sse41 = no
@@ -110,6 +111,7 @@ ifeq ($(ARCH),x86-32)
        arch = i386
        bits = 32
        prefetch = yes
+       mmx = yes
        sse = yes
 endif
 
@@ -250,7 +252,7 @@ ifeq ($(COMP),gcc)
        ifneq ($(KERNEL),Darwin)
           LDFLAGS += -Wl,--no-as-needed
        endif
-       
+
        gccversion = $(shell $(CXX) --version)
        gccisclang = $(findstring clang,$(gccversion))
 endif
@@ -432,6 +434,13 @@ ifeq ($(ssse3),yes)
        endif
 endif
 
+ifeq ($(mmx),yes)
+       CXXFLAGS += -DUSE_MMX
+       ifeq ($(comp),$(filter $(comp),gcc clang mingw))
+               CXXFLAGS += -mmmx
+       endif
+endif
+
 ifeq ($(neon),yes)
        CXXFLAGS += -DUSE_NEON
 endif
@@ -463,6 +472,11 @@ ifeq ($(debug), no)
        ifeq ($(gccisclang),)
                CXXFLAGS += -flto
                LDFLAGS += $(CXXFLAGS) -flto=jobserver
+               ifneq ($(findstring MINGW,$(KERNEL)),)
+                       LDFLAGS += -save-temps
+               else ifneq ($(findstring MSYS,$(KERNEL)),)
+                       LDFLAGS += -save-temps
+               endif
        else
                CXXFLAGS += -flto=thin
                LDFLAGS += $(CXXFLAGS)
@@ -516,7 +530,7 @@ help:
        @echo "x86-64-ssse3            > x86 64-bit with ssse3 support"
        @echo "x86-64-sse3-popcnt      > x86 64-bit with sse3 and popcnt support"
        @echo "x86-64                  > x86 64-bit generic"
-       @echo "x86-32                  > x86 32-bit (also enables SSE)"
+       @echo "x86-32                  > x86 32-bit (also enables MMX and SSE)"
        @echo "x86-32-old              > x86 32-bit fall back for old hardware"
        @echo "ppc-64                  > PPC 64-bit"
        @echo "ppc-32                  > PPC 32-bit"
@@ -596,7 +610,7 @@ objclean:
 # clean auxiliary profiling files
 profileclean:
        @rm -rf profdir
-       @rm -f bench.txt *.gcda *.gcno ./syzygy/*.gcda ./nnue/*.gcda ./nnue/features/*.gcda
+       @rm -f bench.txt *.gcda *.gcno ./syzygy/*.gcda ./nnue/*.gcda ./nnue/features/*.gcda *.s
        @rm -f stockfish.profdata *.profraw
 
 default: