make this work also if BUILDDIR != SRCDIR

Change-Id: I992020936cc39e5a6b04cd507b61853043a19b49

instsetoo_native/CustomTarget_setup.mk

@@ -130,7 +130,7 @@ $(call gb_CustomTarget_get_workdir,instsetoo_native/setup)/$(call gb_Helper_get_
 		echo '[Version]' \
 		&& echo 'AllLanguages=$(if $(gb_WITH_LANG),$(gb_WITH_LANG),en-US)' \
 		&& echo 'BuildVersion=$(BUILD_VER_STRING)' \
-		&& echo 'buildid=$(shell git log -1 --format=%H)' \
+		&& echo 'buildid=$(shell cd $(SRCDIR) && git log -1 --format=%H)' \
 		&& echo 'ExtensionUpdateURL=http://updateexte.libreoffice.org/ExtensionUpdateService/check.Update' \
 		&& echo 'ProductMajor=$(LIBO_VERSION_MAJOR)$(LIBO_VERSION_MINOR)$(LIBO_VERSION_MICRO)' \
 		&& echo 'ProductMinor=$(LIBO_VERSION_PATCH)' \

ios/CustomTarget_LibreOffice_app.mk

@@ -44,7 +44,7 @@ ifeq ($(EXECUTABLE_NAME),LibreOffice)
 $(call gb_CustomTarget_get_target,ios/LibreOffice_app) : $(SCRIPT_OUTPUT_FILE_0)
 
 appdir=$(dir $(SCRIPT_OUTPUT_FILE_0))
-buildid=$(shell git log -1 --format=%H)
+buildid=$(shell cd $(SRCDIR) && git log -1 --format=%H)
 
 $(SCRIPT_OUTPUT_FILE_0) : $(call gb_Executable_get_target,LibreOffice)
 	$(call gb_Output_announce,$(subst $(WORKDIR)/,,$@),$(true),APP,2)