Squash of a few libretro makeile fixes

Fix https://github.com/libretro/ppsspp/issues/5#issuecomment-383238875

Add missing file

Bump this, in case you are building without .git/ folder

Libretro: remove override directive. (#4)

libretro/Makefile

@@ -15,9 +15,9 @@ ifeq (,$(TARGET_ARCH))
 endif
 
 ifneq (,$(findstring 64,$(TARGET_ARCH)))
-   override TARGET_ARCH := x86_64
+   TARGET_ARCH := x86_64
 else ifneq (,$(findstring 86,$(TARGET_ARCH)))
-   override TARGET_ARCH := x86
+   TARGET_ARCH := x86
 endif
 
 ifeq ($(platform),)

libretro/Makefile.common

@@ -216,6 +216,7 @@ SOURCES_CXX += \
 	$(EXTDIR)/glslang/glslang/MachineIndependent/preprocessor/PpContext.cpp \
 	$(EXTDIR)/glslang/glslang/MachineIndependent/preprocessor/PpScanner.cpp \
 	$(EXTDIR)/glslang/glslang/MachineIndependent/preprocessor/PpTokens.cpp \
+	$(EXTDIR)/glslang/glslang/MachineIndependent/attribute.cpp \
 	$(EXTDIR)/glslang/glslang/MachineIndependent/Constant.cpp \
 	$(EXTDIR)/glslang/glslang/MachineIndependent/InfoSink.cpp \
 	$(EXTDIR)/glslang/glslang/MachineIndependent/Initialize.cpp \
@@ -409,6 +410,7 @@ SOURCES_CXX += $(NATIVEDIR)/math/dataconv.cpp \
 	       $(COREDIR)/HLE/sceSsl.cpp \
 	       $(COREDIR)/HLE/sceUmd.cpp \
 	       $(COREDIR)/HLE/sceUsb.cpp \
+	       $(COREDIR)/HLE/sceUsbAcc.cpp \
 	       $(COREDIR)/HLE/sceUsbCam.cpp \
 	       $(COREDIR)/HLE/sceUtility.cpp \
 	       $(COREDIR)/HLE/sceVaudio.cpp \
@@ -454,6 +456,7 @@ SOURCES_CXX += $(NATIVEDIR)/math/dataconv.cpp \
 	       $(COREDIR)/MemMap.cpp \
 	       $(COREDIR)/MemMapFunctions.cpp \
 	       $(COREDIR)/PSPLoaders.cpp \
+	       $(COREDIR)/Replay.cpp \
 	       $(COREDIR)/Reporting.cpp \
 	       $(COREDIR)/SaveState.cpp \
 	       $(COREDIR)/Screenshot.cpp \
@@ -675,7 +678,7 @@ SOURCES_C += \
 endif
 
 GIT_VERSION_SRC = $(CORE_DIR)/git-version.cpp
-GIT_VERSION := $(shell git describe --always || echo v1.4.2-git)
+GIT_VERSION := $(shell git describe --always || echo v1.7.0-git)
 GIT_VERSION_NO_UPDATE = $(findstring 1,$(shell grep -s PPSSPP_GIT_VERSION_NO_UPDATE $(GIT_VERSION_SRC)))
 ifneq (,$(findstring $(GIT_VERSION),$(shell grep -s char $(GIT_VERSION_SRC))))
    GIT_VERSION_NO_UPDATE = 1