Enable LTO for clang

[stockfish] / src / Makefile

diff --git a/src/Makefile b/src/Makefile
index 72afcc35629405af04cb8d583172472277a98330..f6f36727ae7ecc860b78cbdcdfb48664e71ad359 100644 (file)
--- a/src/Makefile
+++ b/src/Makefile
@@ -302,8 +302,6 @@ ifeq ($(optimize),yes)
 
        ifeq ($(comp),clang)
                ifeq ($(KERNEL),Darwin)
-                               CXXFLAGS += -flto
-                               LDFLAGS += $(CXXFLAGS)
                        ifeq ($(arch),i386)
                                CXXFLAGS += -mdynamic-no-pic
                        endif
@@ -349,24 +347,20 @@ endif
 ### 3.8 Link Time Optimization, it works since gcc 4.5 but not on mingw under Windows.
 ### This is a mix of compile and link time options because the lto link phase
 ### needs access to the optimization flags.
-ifeq ($(comp),gcc)
-       ifeq ($(optimize),yes)
-       ifeq ($(debug),no)
+ifeq ($(optimize),yes)
+ifeq ($(debug), no)
+       ifeq ($(comp),$(filter $(comp),gcc clang))
                CXXFLAGS += -flto
                LDFLAGS += $(CXXFLAGS)
        endif
-       endif
-endif
 
-ifeq ($(comp),mingw)
+       ifeq ($(comp),mingw)
        ifeq ($(KERNEL),Linux)
-       ifeq ($(optimize),yes)
-       ifeq ($(debug),no)
                CXXFLAGS += -flto
                LDFLAGS += $(CXXFLAGS)
        endif
        endif
-       endif
+endif
 endif
 
 ### 3.9 Android 5 can only run position independent executables. Note that this