Make builds deterministic

- Remove use of __DATE__ and __TIME__, it was dead code anyway
- Set ar to deterministic mode

This allows consecutive rebuilds to produce identical binaries.

Author: 9ary

Makefile

@@ -26,10 +26,10 @@ export LIBOGC_MINOR	:= 1
 export LIBOGC_PATCH	:= 0
 
 include	$(DEVKITPPC)/base_rules
+export AR	:=	$(AR) -D
 
 BUILD		:=	build
 
-DATESTRING	:=	$(shell date +%Y%m%d)
 VERSTRING	:=	$(LIBOGC_MAJOR).$(LIBOGC_MINOR).$(LIBOGC_PATCH)
 
 #---------------------------------------------------------------------------------
@@ -226,9 +226,6 @@ gc/ogc/libversion.h : $(CURFILE)
 	@echo "#define _V_MINOR_	$(LIBOGC_MINOR)" >> $@
 	@echo "#define _V_PATCH_	$(LIBOGC_PATCH)" >> $@
 	@echo >> $@
-	@echo "#define _V_DATE_			__DATE__" >> $@
-	@echo "#define _V_TIME_			__TIME__" >> $@
-	@echo >> $@
 	@echo '#define _V_STRING "libOGC Release '$(LIBOGC_MAJOR).$(LIBOGC_MINOR).$(LIBOGC_PATCH)'"' >> $@
 	@echo >> $@
 	@echo "#endif // __OGC_LIBVERSION_H__" >> $@

libogc/system.c

@@ -237,7 +237,6 @@ static sys_resetinfo mem_resetinfo = {
 	127
 };
 
-static const char *__sys_versiondate;
 static const char *__sys_versionbuild;
 
 static __inline__ alarm_st* __lwp_syswd_open(syswd_t wd)
@@ -1034,7 +1033,7 @@ void* __SYS_GetIPCBufferHi(void)
 #endif
 
 void _V_EXPORTNAME(void)
-{ __sys_versionbuild = _V_STRING; __sys_versiondate = _V_DATE_; }
+{ __sys_versionbuild = _V_STRING; }
 
 #if defined(HW_RVL)
 void __SYS_DoPowerCB(void)