cleanup build, update libopencm3 (#215)

.travis.yml

@@ -19,7 +19,7 @@ env:
     - DEBUG_LINK=1 FASTFLASH=1
 
 script:
-  - CFLAGS="-std=c99" make -C vendor/libopencm3 lib/stm32/f2
+  - make -C vendor/libopencm3 lib/stm32/f2
   - make
   - make -C bootloader
   - make -C fastflash

build-bootloader.sh

@@ -12,9 +12,8 @@ docker run -t -v $(pwd)/build:/build:z $IMAGE /bin/sh -c "\
 	cd trezor-mcu && \
 	git checkout $TAG && \
 	git submodule update --init && \
-	CFLAGS='-std=c99' make -C vendor/libopencm3 && \
+	make -C vendor/libopencm3 && \
 	make && \
-	make -C bootloader && \
 	make -C bootloader align && \
 	cp bootloader/bootloader.bin /$BINFILE && \
 	cp bootloader/bootloader.elf /$ELFFILE"

build-firmware.sh

@@ -12,9 +12,8 @@ docker run -t -v $(pwd)/build:/build:z $IMAGE /bin/sh -c "\
 	cd trezor-mcu && \
 	git checkout $TAG && \
 	git submodule update --init && \
-	CFLAGS='-std=c99' make -C vendor/libopencm3 && \
+	make -C vendor/libopencm3 && \
 	make && \
-	make -C firmware && \
 	make -C firmware sign && \
 	cp firmware/trezor.bin /$BINFILE && \
 	cp firmware/trezor.elf /$ELFFILE"

vendor/libopencm3

@@ -1 +1 @@
-Subproject commit b76d853a723d39bbc083495bb7460cf3f071476c
+Subproject commit b0e050d10d12c42be031c34822117cfd3c5a0ea7