Merge branch 'git-hash-check' into 'master'

Adding check, so we only collect git info if the SRC dir is a cloned repo

See merge request !399

Makefile.in

@@ -9,6 +9,7 @@ models_dir:= $(bld_dir)/models
 bld_utils_dir:= $(bld_dir)/utils
 linux_version := '@linux_version@'
 VPATH=$(srcdir)
+IS_RCG_SRC_GIT_REPO:= $(shell (cd $(srcdir) && git rev-parse --is-inside-work-tree))
 
 prefix      = @prefix@
 exec_prefix = @exec_prefix@
@@ -29,6 +30,7 @@ RELEASEFLAGS=-DNDEBUG -DNPROBE -g -O5
 DEVFLAGS=@DEVFLAGS@
 NUM_BUILD_THREDS?=1
 
+
 define DIE
 (tail $(bld_log); cat $(err_log) && /bin/false)
 endef
@@ -99,8 +101,10 @@ endif
 	@#Save build config and source files for traceability
 	@/bin/mkdir -p $(bld_info_dir)
 	@echo $(srcdir) > $(bld_info_dir)/rcg_location.txt
+ifeq (true,$(IS_RCG_SRC_GIT_REPO)) #Only capture git info if our RCG_SRC is a git repo
 	@(cd $(srcdir) && git rev-parse HEAD) > $(bld_info_dir)/rcg_git_hash.txt
 	@(cd $(srcdir) && git --no-pager diff) > $(bld_info_dir)/rcg_git_diff.txt
+endif
 	@echo Build date `date` > $(bld_info_dir)/build.txt
 	@echo Compiled on `hostname` >> $(bld_info_dir)/build.txt
 	@echo RCG_LIB_PATH=${RCG_LIB_PATH} >> $(bld_info_dir)/build.txt