Force Makefile to use bash for the shell.

(Default shell is likely to be something like dash on Ubuntu/Debian systems.)

Author: rohitk-singh

lib/Makefile

@@ -14,6 +14,8 @@
 # License along with this library; if not, write to the Free Software
 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 
+SHELL := /bin/bash
+
 AS8051?=sdas8051
 SOURCES = serial.c i2c.c delay.c setupdat.c gpif.c eputils.c $(wildcard interrupts/*.c)
 FX2_OBJS = $(patsubst %.c,%.rel, $(SOURCES)) usbav.rel