[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[sr #110530] Missing #include <string.h> in AC_FUNC_MEMCMP

From: Ryan Schmidt
Subject: [sr #110530] Missing #include <string.h> in AC_FUNC_MEMCMP
Date: Tue, 31 Aug 2021 05:45:04 -0400 (EDT)
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.1.2 Safari/605.1.15

Follow-up Comment #5, sr #110530 (project autoconf):

Don't shoot the messenger. Ok, it's true, I don't know whether there was an
alternative that Apple did not pursue in which implicit function declarations
could have been allowed. All I know is that they determined that this was the
best way forward. If you disagree with them, you may file a bug report with
them and work with them toward a solution for a future release of clang. But
until then, we're left with the current reality, which is that, according to
Apple, if you allow implicit function declarations, you risk creating a
program (whether it is the main program you're compiling or a configuration
test that is trying to determine some system capability) that on Apple Silicon
processors either crashes or behaves incorrectly. Apple didn't choose for this
behavior to happen; it's just how arm64 processors work. In order to avoid
that eventuality and to let you know about the problem in advance, at compile
time, implicit declaration of functions is an error. Do not use
-Wno-error=implicit-function-declaration to attempt to circumvent this


Reply to this item at:


  Message sent via Savannah

reply via email to

[Prev in Thread] Current Thread [Next in Thread]