On Jan 18, 2016, at 5:09 PM, Peter Maydell wrote:
> On 18 January 2016 at 21:09, Programmingkid <programmingk...@gmail.com> wrote:
>>
>> On Jan 18, 2016, at 3:49 PM, Peter Maydell wrote:
>>> Can you say what 'gcc --version' prints for you? That will
>>> tell us the clang version number, which is more interesting
>>> than what clang claims its gcc-compatibility is.
>>
>> $ gcc-4.9 --version
>> gcc-4.9 (Homebrew gcc49 4.9.2_1) 4.9.2
>> Copyright (C) 2014 Free Software Foundation, Inc.
>> This is free software; see the source for copying conditions. There is NO
>> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
>
> Ah, I misread your earlier message and I thought you said that
> gcc-4.9 worked ok and it was plain 'gcc' that caused the warning.
> Is that expansion of the macro the one produced by gcc-4.9, then?
Actually it should have but wasn't. It is of gcc 4.2.1.
Here is gcc 4.9.2's output:
char control[(((__darwin_size_t)((char *)(__darwin_size_t)(sizeof(struct
cmsghdr)) + (sizeof(__uint32_t) - 1)) &~ (sizeof(__uint32_t) - 1)) +
((__darwin_size_t)((char *)(__darwin_size_t)(sizeof(int) * 16) +
(sizeof(__uint32_t) - 1)) &~ (sizeof(__uint32_t) - 1)))] = { 0 };
This is gcc 4.2.1's output:
char control[(((__darwin_size_t)((char *)(__darwin_size_t)(sizeof(struct
cmsghdr)) + (sizeof(__uint32_t) - 1)) &~ (sizeof(__uint32_t) - 1)) +
((__darwin_size_t)((char *)(__darwin_size_t)(sizeof(int) * 16) +
(sizeof(__uint32_t) - 1)) &~ (sizeof(__uint32_t) - 1)))] = { 0 };
They appear to be identical.
>
> Also, you're right that we should figure out why it seems to
> be using the wrong C compiler. Can you use 'V=1' to look at
> what command line make is using to compile this file, please?
> (you'll probably want to dump the whole make output to a file
> and then search through it).
It says gcc-4.9 for the compiler. I wonder if the wrong header file is being
used somewhere.
> Also:
> * what does your config-host.mak say (in particular about what
> it's set CC, HOST_CC, CXX, etc to)?
CC=gcc-4.9
HOST_CC=cc
CXX=gcc-4.9
CPP=gcc-4.9 -E
OBJCC=gcc-4.9
> * can you check your environment doesn't have CC set to anything?
> ("env | grep CC" should tell you if it is)
Nothing is returned.
