py/mkenv.mk: Add GDB variable.
@@ -49,6 +49,7 @@ PYTHON = python3
AS = $(CROSS_COMPILE)as
CC = $(CROSS_COMPILE)gcc
CXX = $(CROSS_COMPILE)g++
+GDB = $(CROSS_COMPILE)gdb
LD = $(CROSS_COMPILE)ld
OBJCOPY = $(CROSS_COMPILE)objcopy
SIZE = $(CROSS_COMPILE)size
