Hi! Configuring GCC with --target=avr-elf --enable-werror-always, I see this warning that's easy to fix. The options are parsed with a lot of #ifdefs and it may actually just be unused. Let's just mark it as such.
[all 2021-09-30 00:43:46] /usr/lib/gcc-snapshot/bin/g++ -fno-PIE -c -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include -I../../gcc/gcc/../libcpp/include -I../../gcc/gcc/../libcody -I../../gcc/gcc/../libdecnumber -I../../gcc/gcc/../libdecnumber/dpd -I../libdecnumber -I../../gcc/gcc/../libbacktrace -o avr-common.o -MT avr-common.o -MMD -MP -MF ./.deps/avr-common.TPo ../../gcc/gcc/common/config/avr/avr-common.c [all 2021-09-30 00:43:47] ../../gcc/gcc/common/config/avr/avr-common.c: In function 'bool avr_handle_option(gcc_options*, gcc_options*, const cl_decoded_option*, location_t)': [all 2021-09-30 00:43:47] ../../gcc/gcc/common/config/avr/avr-common.c:80:72: error: unused parameter 'loc' [-Werror=unused-parameter] [all 2021-09-30 00:43:47] 80 | const struct cl_decoded_option *decoded, location_t loc) [all 2021-09-30 00:43:47] | ~~~~~~~~~~~^~~ [all 2021-09-30 00:43:47] cc1plus: all warnings being treated as errors [all 2021-09-30 00:43:47] make[1]: *** [Makefile:2420: avr-common.o] Error 1 gcc/ChangeLog: * common/config/avr/avr-common.c (avr_handle_option): Mark argument as ATTRIBUTE_UNUSED. diff --git a/gcc/common/config/avr/avr-common.c b/gcc/common/config/avr/avr-common.c index 6486659d27c..a6939ad03d3 100644 --- a/gcc/common/config/avr/avr-common.c +++ b/gcc/common/config/avr/avr-common.c @@ -77,7 +77,8 @@ static const struct default_options avr_option_optimization_table[] = static bool avr_handle_option (struct gcc_options *opts, struct gcc_options*, - const struct cl_decoded_option *decoded, location_t loc) + const struct cl_decoded_option *decoded, + location_t loc ATTRIBUTE_UNUSED) { int value = decoded->value; Ok for trunk? Thanks, Jan-Benedict --
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