pkg: Initial introduction of ubasic package

pkg/ubasic/Makefile

@@ -0,0 +1,21 @@
+PKG_NAME=ubasic
+PKG_URL=https://github.com/adamdunkels/ubasic
+PKG_VERSION=cc07193c231e21ecb418335aba5b199a08d4685c
+PKG_LICENSE=BSD-3-Clause
+
+UBASIC_MODULES   = ubasic_tests
+UBASIC_USEMODULE = $(filter $(UBASIC_MODULES),$(USEMODULE))
+
+.PHONY: all ubasic ubasic%
+
+all: git-download ubasic
+
+make_module = "$(MAKE)" -f $(RIOTPKG)/ubasic/$(1).mk -C $(2)
+
+ubasic: $(UBASIC_USEMODULE)
+	$(call make_module,$@,$(PKG_BUILDDIR))
+
+ubasic%:
+	$(call make_module,$@,$(PKG_BUILDDIR))
+
+include $(RIOTBASE)/pkg/pkg.mk

pkg/ubasic/Makefile.include

@@ -0,0 +1 @@
+INCLUDES += -I$(PKGDIRBASE)/ubasic

pkg/ubasic/doc.txt

@@ -0,0 +1,6 @@
+/**
+ * @defgroup pkg_ubasic uBASIC interpreter
+ * @ingroup  pkg
+ * @brief    A really tiny BASIC interpreter
+ * @see      http://dunkels.com/adam/ubasic/
+ */

pkg/ubasic/ubasic.mk

@@ -0,0 +1,10 @@
+MODULE = ubasic
+
+# some toolchains complain about the usage of isdigit with a pointer in the
+# tokenizer
+CFLAGS += -Wno-char-subscripts
+
+SRC := tokenizer.c ubasic.c
+NO_AUTO_SRC := 1
+
+include $(RIOTBASE)/Makefile.base

pkg/ubasic/ubasic_tests.mk

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+MODULE = ubasic_tests
+
+# tests.c has constants that may overflow on <32 bit platforms
+CFLAGS += -Wno-overflow
+# ubasic_init_peek_poke used in those tests is not exposed
+CFLAGS += -Wno-implicit-function-declaration
+# LLVM doesn't like ubasic_init_peek_poke due to strict prototyping either
+CFLAGS += -Wno-strict-prototypes
+
+SRC := tests.c
+NO_AUTO_SRC := 1
+
+include $(RIOTBASE)/Makefile.base