From eb659fb0ee80c25312be36b3d8adb686813db125 Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Wed, 18 Dec 2013 10:43:16 -0800
Subject: [PATCH] altos: create target pdclib directories before building

---
 src/Makefile | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/Makefile b/src/Makefile
index 2ba59d94..2488cbab 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -44,6 +44,7 @@ SUBDIRS=
 
 ifeq ($(strip $(HAVE_PDCLIB)),yes)
 PDCLIB=pdclib
+CLEAN_PDCLIB=clean-pdclib
 endif
 
 ifeq ($(strip $(HAVE_SDCC)),yes)
@@ -110,8 +111,11 @@ ao_kalman.h: make-kalman kalman.5c kalman_filter.5c load_csv.5c matrix.5c
 ao_whiten.h: make-whiten
 	nickle $< > $@
 
-clean-local:
+clean-local: $(CLEAN_PDCLIB)
 	rm -f altitude.h ao_kalman.h
 
 pdclib:
-	cd ../pdclib && make && make prefix=`pwd`/opt install
+	cd ../pdclib && mkdir -p opt/include opt/lib && make && make prefix=`pwd`/opt install
+
+clean-pdclib:
+	cd ../pdclib && make clean && rm -rf opt
\ No newline at end of file
-- 
2.30.2