VS Arduino - "Compiler Warnings" option does not respected in combine recipe (recipe.c.combine.pattern)

May 21^st, 2025 at 6:48pm (UTC)

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VS Arduino › Visual Micro › Installation & Troubleshooting › "Compiler Warnings" option does not respected in combine recipe (recipe.c.combine.pattern)

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"Compiler Warnings" option does not respected in combine recipe (recipe.c.combine.pattern) (Read 2327 times)

hagai Newbies Offline Posts: 1 Joined: Aug 25^th, 2017	"Compiler Warnings" option does not respected in combine recipe (recipe.c.combine.pattern) Aug 25^th, 2017 at 8:31pm	Print Post
	Hello, It is seems that the Compiler Warnings option, "-Wall", do not work in the link step (recipe.c.combine.pattern). Instead, the option "-w" is applied as in the option of no compiler warning. This behavior also blocking the option of "Extra c.elf flags", because inhibit all warning messages flag ("-w") take precedence over other flags. here is a verbose output, with Compiler Warnings ON and "-Wextra" set for the "Extra c.elf flags" option: Code Building project code ... "C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-g++" -c -g -Os -Wall -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -flto -mmcu=atmega2560 ... "C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-g++" -c -g -Os -Wall -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -flto -mmcu=atmega2560 ... Linking it all together ... "C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avr-gcc" -w -Os -g -flto -fuse-linker-plugin -Wl,--gc-sections,--relax -mmcu=atmega2560 -o .... -lm -Wextra Trying achive the same goal in Arduion Ide, using the platform.local.txt, work as expected. 10'x, hagai
	« Last Edit: Aug 25^th, 2017 at 8:39pm by hagai »

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Tim@Visual Micro Administrator Offline Posts: 12188 Location: United Kingdom Joined: Apr 10^th, 2010	Re: "Compiler Warnings" option does not respected in combine recipe (recipe.c.combine.pattern) Reply #1 - Sep 1^st, 2017 at 10:02pm	Print Post
	Thanks for the report I will look into it. In the meantime you can create a board.txt for the local project and override any build settings you want For example adding these lines to the board.txt in the project folder would cause them to be used instead of the ones in platform.txt Code recipe.ar.pattern="{compiler.path}{compiler.ar.cmd}" -Wall {compiler.ar.flags} {compiler.ar.extra_flags} "{archive_file_path}" "{object_file}" recipe.c.combine.pattern="{compiler.path}{compiler.c.elf.cmd}" -Wall {compiler.c.elf.flags} -mmcu={build.mcu} {compiler.c.elf.extra_flags} -o "{build.path}/{build.project_name}.elf" {object_files} "{build.path}/{archive_file}" "-L{build.path}" -lm recipe.objcopy.eep.pattern="{compiler.path}{compiler.objcopy.cmd}" -Wall {compiler.objcopy.eep.flags} {compiler.objcopy.eep.extra_flags} "{build.path}/{build.project_name}.elf" "{build.path}/{build.project_name}.eep" recipe.objcopy.hex.pattern="{compiler.path}{compiler.elf2hex.cmd}" {compiler.elf2hex.flags} {compiler.elf2hex.extra_flags} "{build.path}/{build.project_name}.elf" "{build.path}/{build.project_name}.hex" tip: vs tends to save the board.txt after you click build so if you change it then click save then build
	« Last Edit: Sep 1^st, 2017 at 10:06pm by Tim@Visual Micro »

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