stop building l10n if strings are unchanged

The buildsystem tried to build l10n for test applications which never
produced the output it expected causing it to try building it all the
time.

6 files changed, 21 insertions, 7 deletions

diff --git a/buildlib/copy.mak b/buildlib/copy.mak
index e8fe43de..3ae11a7e 100644
--- a/buildlib/copy.mak
+++ b/buildlib/copy.mak
@@ -21,7 +21,7 @@ veryclean: veryclean/$(LOCAL)
 
 MKDIRS += $(dir $($(LOCAL)-LIST))
 
-$($(LOCAL)-LIST) : $(TO)/% : % dirs
+$($(LOCAL)-LIST) : $(TO)/% : %
 	echo Installing $< to $(@D)
 	cp $< $(@D)
 
diff --git a/buildlib/podomain.mak b/buildlib/podomain.mak
index cca7d55b..265359ab 100644
--- a/buildlib/podomain.mak
+++ b/buildlib/podomain.mak
@@ -4,6 +4,8 @@
 # declared domain of the make file. It also arranges to set the DOMAIN 
 # CPPFLAG for the compilation.
 
+ifneq ($(APT_DOMAIN),none)
+
 MY_DOMAIN := $(PACKAGE)
 ifdef APT_DOMAIN
 $($(LOCAL)-OBJS): CPPFLAGS := $(CPPFLAGS) -DAPT_DOMAIN='"$(APT_DOMAIN)"'
@@ -13,10 +15,13 @@ endif
 MKDIRS += $(PO_DOMAINS)/$(MY_DOMAIN)
 $(PO_DOMAINS)/$(MY_DOMAIN)/$(LOCAL).$(TYPE)list: SRC := $(addprefix $(SUBDIR)/,$(SOURCE))
 $(PO_DOMAINS)/$(MY_DOMAIN)/$(LOCAL).$(TYPE)list: makefile dirs
-	(echo $(SRC) | xargs -n1 echo) > $@
+	(echo $(SRC) | xargs -n1 echo) > $@.tmp
+	cmp --silent $@.tmp $@ || mv $@.tmp $@
 startup binary program clean update-po: $(PO_DOMAINS)/$(MY_DOMAIN)/$(LOCAL).$(TYPE)list
 
 veryclean: veryclean/$(LOCAL)
 veryclean/po/$(LOCAL): LIST := $(PO_DOMAINS)/$(MY_DOMAIN)/$(LOCAL).$(TYPE)list
 veryclean/po/$(LOCAL):
 	rm -f $(LIST)
+
+endif
diff --git a/doc/makefile b/doc/makefile
index 44a22a59..274fbc27 100644
--- a/doc/makefile
+++ b/doc/makefile
@@ -36,7 +36,7 @@ $(DOCDIRLIST) :: %/makefile : lang.makefile
 	test -d $(dir $@) || mkdir $(dir $@)
 	sed "s#@@LANG@@#$(subst /,,$(dir $@))#" $< > $@
 
-debiandoc/subdirs manpages/subdirs clean/subdirs veryclean/subdirs: dirs
+debiandoc/subdirs manpages/subdirs clean/subdirs veryclean/subdirs:
 	for dir in en $(dir $(DOCDIRLIST)); do \
 		$(MAKE) -C $$dir $(patsubst %/subdirs,%,$@); \
 	done
diff --git a/po/makefile b/po/makefile
index ebf6c06d..5a3c7fb6 100644
--- a/po/makefile
+++ b/po/makefile
@@ -30,17 +30,23 @@ GETDOMAIN = $(word 1,$(subst /, ,$(1)))
 # and produce the .pot file.
 $(POTFILES) : $(PO)/%.pot :
 	echo "Generating POT file $@"
-	echo $@ : $(wildcard $(PO)/domains/$*/*.*list) $(addprefix $(BASE)/,$(shell cat $(wildcard $(PO)/domains/$*/*.srclist))) > $@.d
+	echo $@ : $(wildcard $(PO)/domains/$*/*.*list) $(addprefix $(BASE)/,$(shell cat $(wildcard $(PO)/domains/$*/*.srclist))) > $@.d.tmp
+	cmp --silent $@.d.tmp $@.d || mv $@.d.tmp $@.d
 # From sh source
-	cat $(PO)/domains/$*/*.shlist 2> /dev/null | (cd $(BASE) && xargs -n1 bash --dump-po-strings) > $(PO)/domains/$*/sh.pot
+	cat $(PO)/domains/$*/*.shlist 2> /dev/null | (cd $(BASE) && xargs -n1 bash --dump-po-strings) > $(PO)/domains/$*/sh.pot.tmp
+	cmp --silent $(PO)/domains/$*/sh.pot.tmp $(PO)/domains/$*/sh.pot || \
+		mv $(PO)/domains/$*/sh.pot.tmp $(PO)/domains/$*/sh.pot
 # From C/C++ source
 	cat $(PO)/domains/$*/*.srclist > $(PO)/POTFILES_$*.in
 	$(XGETTEXT) --default-domain=$* --directory=$(BASE) \
 	  --add-comments --foreign --keyword=_ --keyword=N_ \
 	  --keyword=P_:1,2 \
-	  --files-from=$(PO)/POTFILES_$*.in -o $(PO)/domains/$*/c.pot
+	  --files-from=$(PO)/POTFILES_$*.in -o $(PO)/domains/$*/c.pot.tmp
+	cmp --silent $(PO)/domains/$*/c.pot.tmp $(PO)/domains/$*/c.pot || \
+		mv $(PO)/domains/$*/c.pot.tmp $(PO)/domains/$*/c.pot
 	rm -f $(PO)/POTFILES_$*.in
-	$(MSGCOMM) --omit-header --more-than=0 $(PO)/domains/$*/c.pot $(PO)/domains/$*/sh.pot --output=$@
+	$(MSGCOMM) --omit-header --more-than=0 $(PO)/domains/$*/c.pot $(PO)/domains/$*/sh.pot --output=$@.tmp
+	cmp --silent $@ $@.tmp || mv $@.tmp $@
 	# copy into the domain dirs to make rosetta happy
 	rm -f $(PO)/domains/$*/*.pot
 	cp $@ $(PO)/domains/$*
@@ -93,4 +99,5 @@ ifneq ($(words $(The_DFiles)),0)
 include $(The_DFiles)
 endif
 
+# otherwise the output is completely screwed
 .NOTPARALLEL:
diff --git a/test/interactive-helper/makefile b/test/interactive-helper/makefile
index 10d1e44e..fa4f5fec 100644
--- a/test/interactive-helper/makefile
+++ b/test/interactive-helper/makefile
@@ -1,6 +1,7 @@
 # -*- make -*-
 BASE=../..
 SUBDIR=test/interactive-helper
+APT_DOMAIN=none
 
 # Bring in the default rules
 include ../../buildlib/defaults.mak
diff --git a/test/libapt/makefile b/test/libapt/makefile
index 953e455e..1b67cba9 100644
--- a/test/libapt/makefile
+++ b/test/libapt/makefile
@@ -2,6 +2,7 @@
 BASE=../..
 SUBDIR=test/libapt
 BASENAME=_libapt_test
+APT_DOMAIN=none
 
 # Bring in the default rules
 include ../../buildlib/defaults.mak