make: clang is more pedantic than gcc #4560
Description
Using -pedantic flag with clang compiler, it considers language extensions as errors. Building tests/fault_handler for native fails with
RIOT/tests/fault_handler/main.c:48:22: error: extension used [-Werror,-Wlanguage-extension-token]
puts(PRINT_MACRO(INVALID_INSTRUCTION));
^
RIOT/tests/fault_handler/main.c:30:29: note: expanded from macro 'INVALID_INSTRUCTION'
#define INVALID_INSTRUCTION asm (".short 0xdead, 0xbeef, 0xcafe, 0xbabe\n")
^
RIOT/tests/fault_handler/main.c:49:5: error: extension used [-Werror,-Wlanguage-extension-token]
INVALID_INSTRUCTION;
^
RIOT/tests/fault_handler/main.c:30:29: note: expanded from macro 'INVALID_INSTRUCTION'
#define INVALID_INSTRUCTION asm (".short 0xdead, 0xbeef, 0xcafe, 0xbabe\n")