voice: If $POOL is not set, use <build-dir>/voice-pool by default

It will _vastly_ speed up repeated voice builds.

The voice pool directory will not be erased by a 'make clean'

Change-Id: Ice58d5c5355abfa5a385dfca749f8063e2ee8622

1 files changed, 4 insertions, 0 deletions

diff --git a/tools/root.make b/tools/root.make
index 6e96844465..b8637dc923 100644
--- a/tools/root.make
+++ b/tools/root.make
@@ -374,6 +374,10 @@ ifdef TTS_ENGINE
 
 voice: voicetools $(BUILDDIR)/apps/features
         $(SILENT)for f in `cat $(BUILDDIR)/apps/features`; do feat="$$feat:$$f" ; done ; \
+        if [ -z "$$POOL" ] ; then \
+                export POOL="$(BUILDDIR)/voice-pool" ; \
+        fi;\
+        mkdir -p $${POOL} ;\
         for lang in `echo $(VOICELANGUAGE) |sed "s/,/ /g"`; do $(TOOLSDIR)/voice.pl -V -l=$$lang -t=$(MODELNAME)$$feat -i=$(TARGET_ID) -e="$(ENCODER)" -E="$(ENC_OPTS)" -s=$(TTS_ENGINE) -S="$(TTS_OPTS)"; done
 
 talkclips: voicetools