Webdnl GCC doesn't exit with an error if an unknown attribute is: dnl provided but only outputs a warning, so accept the attribute: dnl only if no warning were issued. [AS_IF ([grep -- … Webavailable in GCC 7.x and newer so the build is now broken for GCC 5.x and 6.x: gcc: error: unrecognized command line option '-Wimplicit-fallthrough=5'; did you mean '-Wno-fallthrough'? Fix this by moving -Wimplicit-fallthrough=5 under cc-option. Reported-by: Nathan Chancellor Co-developed-by: Nathan Chancellor
The Linux Kernel Is Close To Enabling "-Wimplicit ... - Phoronix
WebMay 11, 2024 · The -Wimplicit-fallthrough compiler flag has been around since GCC 7 for warning over switch fall-through cases where it could lead to potential bugs / unexpected … WebDec 6, 2024 · Date: Mon, 6 Dec 2024 23:02:05 +0100: From: Salvatore Bonaccorso <> Subject: Re: Makefile: CC_IMPLICIT_FALLTHROUGH passed quoted as argument to gcc period bleeding stops and starts again
c++ - Why is GCC warning me about a fallthrough even when
WebMay 2, 2024 · GCC expects the marker comment on its own line, like this: m_state = BODY; // fall through case BODY: The marker also has to come right before the case label; there … Well, because it may fallthrough. What is it trying to warn against. A fallthrough from case A into case B when two != AA. what can I do so that it does not warn. On gcc lower then 7 use a comment, ie. one of the markers that disable the warning: /* falls through */. On gcc above 7 you could use a attribute: __attribute__ ( (__fallthrough__ ... WebSep 26, 2024 · GCC added implicit fallthrough warnings to -Wextra. Clang has not yet done so, but we have had requests to do it and I can imagine a future where that happens. (I … period bloating pain