[solved] building in MINGW32 / make TARGET=app fails with 'no rule to make target'

[cmisztur]

Submitted issue @ https://github.com/pycom/pycom-micropython-sigfox/issues/220

Hello. I am trying to build firmware from source and make TARGET=app does not compile with following error. Hopefully it's something silly due to my unfamiliarity with the environment.

...
CC ../py/../extmod/uos_dupterm.c
CC ../py/../lib/embed/abort_.c
CC ../py/../lib/utils/printf.c
make: *** No rule to make target 'build/WIPY/release/frozen_mpy/frozen/Base/_boot.mpy', needed by 'build/WIPY/release/frozen_mpy.c'.  Stop.

I have followed these instructions to setup the build environment on Windows 10:

1. https://docs.espressif.com/projects/esp-idf/en/latest/get-started/
   I am able to build vanilla esp-idf hello_world example.
2. https://github.com/pycom/pycom-micropython-sigfox
   I did not download the listed xtensa gcc compiler since one already exists from step #1.

xtensa-esp32-elf-gcc.exe (crosstool-NG crosstool-ng-1.22.0-80-g6c4433a5) 5.2.0

$ printenv PATH
/mingw32/bin:/usr/local/bin:/usr/bin:/bin:/c/Windows/System32:/c/Windows:/c/Windows/System32/Wbem:/c/Windows/System32/WindowsPowerShell/v1.0/:/opt/xtensa-esp32-elf/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl

3. https://github.com/pycom/pycom-esp-idf

$ printenv IDF_PATH
D:/msys32/home/chris/esp/pycom-esp-idf

4. build

cd mpy-cross && make clean && make && cd ..
cd esp32
make clean
make TARGET=boot
make TARGET=app
make flash

output of mpy-cross:

LINK mpy-cross
   text    data     bss     dec     hex filename
 128257    2596     708  131561   201e9 mpy-cross

output of boot target:

LINK xtensa-esp32-elf-gcc *** -nostdlib -Wl,-Map=build/WIPY/release/bootloader/bootloader.map -Wl,--no-check-sections -u call_user_start_cpu0 -Wl,-static -Wl,--undefined=uxTopUsedPriority -Wl,--gc-sections -T esp32.bootloader.ld -T esp32.rom.ld -T esp32.peripherals.ld -T esp32.bootloader.rom.ld -T esp32.rom.spiram_incompatible_fns.ld *** -Wl,--start-group -Lbootloader/lib -Lbootloader -Lbuild/WIPY/release/bootloader -LD:/msys32/home/chris/esp/pycom-esp-idf/components/esp32/ld -LD:/msys32/home/chris/esp/pycom-esp-idf/components/esp32/lib -llog -lcore -lbootloader_support -lspi_flash -lsoc -lmicro-ecc -lgcc -lstdc++ -lgcov build/WIPY/release/bootloader/bootloader.a -Wl,--end-group -Wl,-EL -o build/WIPY/release/bootloader/bootloader.elf
   text    data     bss     dec     hex filename
  16310       8      40   16358    3fe6 build/WIPY/release/bootloader/bootloader.elf
IMAGE build/WIPY/release/bootloader/bootloader.bin

Thanks
Chris

[cmisztur]

Resolved...

diff --git a/py/mkrules.mk b/py/mkrules.mk
index 633b0df..b9b235c 100644
--- a/py/mkrules.mk
+++ b/py/mkrules.mk
@@ -115,6 +115,13 @@ FROZEN_MPY_PY_FILES += $(shell find -L $(FROZEN_MPY_DIR)/Common/ -type f -name '
 ifeq ($(BOARD), $(filter $(BOARD), GPY FIPY))
 FROZEN_MPY_PY_FILES += $(shell find -L $(FROZEN_MPY_DIR)/LTE/ -type f -name '*.py' | $(SED) -e 's/$(FROZEN_MPY_DIR)\/LTE\///')
 endif
+else ifeq ($(findstring MINGW32,$(OS_NAME)),MINGW32)
+# make a list of all the .py files that need compiling and freezing
+FROZEN_MPY_PY_FILES := $(shell find -L $(FROZEN_MPY_DIR)/Base/ -type f -name '*.py' | $(SED) -e 's/$(FROZEN_MPY_DIR)\/Base\///')
+FROZEN_MPY_PY_FILES += $(shell find -L $(FROZEN_MPY_DIR)/Common/ -type f -name '*.py' | $(SED) -e 's/$(FROZEN_MPY_DIR)\/Common\///')
+ifeq ($(BOARD), $(filter $(BOARD), GPY FIPY))
+FROZEN_MPY_PY_FILES += $(shell find -L $(FROZEN_MPY_DIR)/LTE/ -type f -name '*.py' | $(SED) -e 's/$(FROZEN_MPY_DIR)\/LTE\///')
+endif
 else
 # make a list of all the .py files that need compiling and freezing
 FROZEN_MPY_PY_FILES := $(shell find -L $(FROZEN_MPY_DIR)/Base/ -type f -name '*.py' | $(SED) -e 's=^$(FROZEN_MPY_DIR)\/Base\//==')