* compiler Makefile checks if SOURCE_SOURCE_DATE_EPOCH_DATE is set or if git is used, in either case the former or the latter are used for the build date reported by the compiler

git-svn-id: trunk@47133 -
(cherry picked from commit 201281ae2a98d79e9fc49ec4a3e5b35e7d757027)

compiler/Makefile

@@ -403,6 +403,18 @@ endif
 ifndef RTLOPT
 RTLOPT:=$(OPT)
 endif
+DATE_FMT = +%Y/%m/%d
+ifdef SOURCE_DATE_EPOCH
+    DATESTR ?= $(shell date -u -d "@$(SOURCE_DATE_EPOCH)" "$(DATE_FMT)" 2>/dev/null || date -u -r "$(SOURCE_DATE_EPOCH)" "$(DATE_FMT)" 2>/dev/null || date -u "$(DATE_FMT)")
+else
+   GIT_DIR = $(wildcard ../.git)
+   ifneq ($(GIT_DIR),)
+      DATESTR:=$(shell git log -1 --pretty=%cd --date=format:'%Y/%m/%d')
+   endif
+endif
+ifdef DATESTR
+override OPTNEW+=-DD$(DATESTR)
+endif
 ifdef CYCLELEVEL
 ifeq ($(CYCLELEVEL),1)
 override LOCALOPT+=$(OPTLEVEL1)

compiler/Makefile.fpc

@@ -129,6 +129,22 @@ ifndef RTLOPT
 RTLOPT:=$(OPT)
 endif
 
+DATE_FMT = +%Y/%m/%d
+ifdef SOURCE_DATE_EPOCH
+    COMPDATESTR ?= $(shell date -u -d "@$(SOURCE_DATE_EPOCH)" "$(DATE_FMT)" 2>/dev/null || date -u -r "$(SOURCE_DATE_EPOCH)" "$(DATE_FMT)" 2>/dev/null || date -u "$(DATE_FMT)")
+else
+   # does a git directory exist? ...
+   GIT_DIR = $(wildcard ../.git)
+   ifneq ($(GIT_DIR),)
+      # ... then take date from head
+      COMPDATESTR:=$(shell git log -1 --pretty=%cd --date=format:'%Y/%m/%d')
+   endif
+endif
+
+ifdef COMPDATESTR
+override OPTNEW+=-DD$(COMPDATESTR)
+endif
+
 ifdef CYCLELEVEL
 ifeq ($(CYCLELEVEL),1)
 override LOCALOPT+=$(OPTLEVEL1)