driconf: Add proper dependency for compiling .mo files from .po files.

Previously this was happening unconditionally, leading to some excessive
rebuilding/relinking during builds.

Note that the .po files are not automatically updated due to changes to the
t_options.h file. Instead, translators should continue to use "make po"
manually. This is because after new strings are merged into the existing .po
file, manual work is still required by translators to ensure that the
translations are correct.

2 files changed, 20 insertions, 21 deletions

diff --git a/src/mesa/drivers/dri/common/xmlpool/.gitignore b/src/mesa/drivers/dri/common/xmlpool/.gitignore
index d8b3246fd4d..f6ba5c84977 100644
--- a/src/mesa/drivers/dri/common/xmlpool/.gitignore
+++ b/src/mesa/drivers/dri/common/xmlpool/.gitignore
@@ -5,3 +5,4 @@ nl
 sv
 options.h
 Makefile
+xmlpool.pot
diff --git a/src/mesa/drivers/dri/common/xmlpool/Makefile.am b/src/mesa/drivers/dri/common/xmlpool/Makefile.am
index 526ae932069..b2a423cf203 100644
--- a/src/mesa/drivers/dri/common/xmlpool/Makefile.am
+++ b/src/mesa/drivers/dri/common/xmlpool/Makefile.am
@@ -61,36 +61,34 @@ clean:
 
 # Default target options.h
 options.h: LOCALEDIR := .
-options.h: t_options.h mo
+options.h: t_options.h $(MOS)
 	$(AM_V_GEN) $(PYTHON2) $(PYTHON_FLAGS) $(srcdir)/gen_xmlpool.py t_options.h $(LOCALEDIR) $(LANGS) > options.h
 
 # Update .mo files from the corresponding .po files.
-mo:
-	@for mo in $(MOS); do \
-		lang=$${mo%%/*}; \
-		echo "Updating $$mo from $$lang.po."; \
-		mkdir -p $${mo%/*}; \
-		msgfmt -o $$mo $$lang.po; \
-	done
+%/LC_MESSAGES/options.mo: %.po
+	@mo="$@" \
+	lang=$${mo%%/*}; \
+	echo "Updating ($$lang) $@ from $?."; \
+	mkdir -p $$lang/LC_MESSAGES; \
+	msgfmt -o $@ $?
 
 # Use this target to create or update .po files with new messages in
 # driconf.py.
-po: $(POS)
+po: $(POT)
+	@for po in $(POS); do \
+		if [ -f $$po ]; then \
+			echo "Merging new strings from $(POT) into $@."; \
+			mv $$po $$po~; \
+			msgmerge -o $$po $$po~ $(POT); \
+		else \
+			echo "Initializing $$po from $(POT)."; \
+			msginit -i $(POT) -o $$po~ --locale=$*; \
+			sed -e 's/charset=.*\\n/charset=UTF-8\\n/' $$po~ > $$po; \
+		fi \
+	done
 
 pot: $(POT)
 
 # Extract message catalog from driconf.py.
 $(POT): t_options.h
 	xgettext -L C --from-code utf-8 -o $(POT) t_options.h
-
-# Create or update a .po file for a specific language.
-%.po: $(POT)
-	@if [ -f $@ ]; then \
-		echo "Merging new strings from $(POT) into $@."; \
-		mv $@ $@~; \
-		msgmerge -o $@ $@~ $(POT); \
-	else \
-		echo "Initializing $@ from $(POT)."; \
-		msginit -i $(POT) -o $@~ --locale=$*; \
-		sed -e 's/charset=.*\\n/charset=UTF-8\\n/' $@~ > $@; \
-	fi