1167846 - clang -Wimplicit-int error in Windows

Status: RESOLVED INVALID

(Firefox Build System :: General, defect)

Description

[Godrod]

Attachment: config.log

User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:41.0) Gecko/20100101 Firefox/41.0
Build ID: 20150522030225

Steps to reproduce:

Build firefox with this mozconfig:

. $topsrcdir/browser/config/mozconfig

export CC=clang
export CXX=clang++

mk_add_options MOZ_MAKE_FLAGS="-j6"
mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/objdir-ff

ac_add_options --host=x86_64-pc-mingw32
ac_add_options --target=x86_64-pc-mingw32

ac_add_options --enable-optimize
ac_add_options --disable-debug



Actual results:

it doesn't build and show the error in the config.log file


Expected results:

build firefox without this error

Comment 1

[(no longer active)]

Do you know where the -Wimplicit-int flag is coming from?  I cannot find any mention of it in our source tree...

Comment 2

[Godrod]

I don't know where this flag come from and i didn't add it in my CFLAGS

Comment 3

[(no longer active)]

Hmm, I have no idea what might be happening...  Sorry!

Comment 4

[Godrod]

I think it's because the compiler doesn't find "confdefs.h" but how can i fix it ?

Comment 5

[(no longer active)]

AFAIK that file is generated by configure, I don't think that is the source of the error.

Here is a question: if you remove the host and target triplets from your mozconfig, would this check in the configure script pass?

Also, may I ask which version of clang-cl you're using, and how you have built it?

Comment 6

[Godrod]

I've  already try to build it whithout host and target settings but it didn't work too.

I'm not building with clang-cl but with clang and clang++

Comment 7

[(no longer active)]

Oh, that is not supported at all in our build system.  You should try clang-cl.  Note that the clang-cl port is not stable yet, and you may hit issues with it.  Please file those bugs and make them block bug 752004.  Thanks!