unix: Enable btree module.

pfalcon · pfalcon · commit 43241ceaacce · 2016-07-02T15:26:07.000+03:00
But disable it for coverage build, as its extra warninsg aren't compatible
with K&amp;R C BerkeleyDB uses.
diff --git a/unix/Makefile b/unix/Makefile
@@ -260,7 +260,7 @@ freedos:
 
 # build an interpreter for coverage testing and do the testing
 coverage:
-	$(MAKE) COPT="-O0" CFLAGS_EXTRA='-DMP_CONFIGFILE="<mpconfigport_coverage.h>" -fprofile-arcs -ftest-coverage -Wdouble-promotion -Wformat -Wmissing-declarations -Wmissing-prototypes -Wold-style-definition -Wpointer-arith -Wshadow -Wsign-compare -Wuninitialized -Wunused-parameter -DMICROPY_UNIX_COVERAGE' LDFLAGS_EXTRA='-fprofile-arcs -ftest-coverage' BUILD=build-coverage PROG=micropython_coverage
+	$(MAKE) COPT="-O0" MICROPY_PY_BTREE=0 CFLAGS_EXTRA='-DMP_CONFIGFILE="<mpconfigport_coverage.h>" -fprofile-arcs -ftest-coverage -Wdouble-promotion -Wformat -Wmissing-declarations -Wmissing-prototypes -Wold-style-definition -Wpointer-arith -Wshadow -Wsign-compare -Wuninitialized -Wunused-parameter -DMICROPY_UNIX_COVERAGE' LDFLAGS_EXTRA='-fprofile-arcs -ftest-coverage' BUILD=build-coverage PROG=micropython_coverage
 
 coverage_test: coverage
 	$(eval DIRNAME=$(notdir $(CURDIR)))
diff --git a/unix/mpconfigport.mk b/unix/mpconfigport.mk
@@ -11,6 +11,9 @@ MICROPY_USE_READLINE = 1
 # Whether to enable FatFs VFS
 MICROPY_FATFS = 1
 
+# btree module using Berkeley DB 1.xx
+MICROPY_PY_BTREE = 1
+
 # _thread module using pthreads
 MICROPY_PY_THREAD = 1
 
