[Sound-open-firmware] SOF master build REMINDER

[Liam Girdwood]

On Mon, 2018-01-29 at 05:49 +0000, Pan, Xiuli wrote:
> Reminder for applying this patch! On master branch
> 
> Please check if you have install 
> sudo apt-get install autoconf-archive
> 
> And see this line when run ./autogen.sh
> 
> aclocal: installing 'm4/ax_check_compile_flag.m4' from
> '/usr/share/aclocal/ax_check_compile_flag.m4'
> 
> or have file
> 'm4/ax_check_compile_flag.m4'
> in your git repo.
> 
> If not you will find these when configure.
> 
> ./configure: line 3451: syntax error near unexpected token `-
> msse4.2,'
> ./configure: line 3451: `AX_CHECK_COMPILE_FLAG(-msse4.2,
> SSE42_CFLAGS="-DOPS_SSE42 -msse4.2 -ffast-math -ftree-vectorizer-
> verbose=0",'
> 
> It seems to be some m4 expand auto check about
> 'AX_CHECK_COMPILE_FLAG'. If you did no install this macro it will
> just copy but not expand it
> in configure file. And then the error will occur.
> 
> Synced with Keqiao to update CI environment and build guide.
> 
Looks like this macro is deprecated.

https://code.videolan.org/videolan/libdvdnav/commit/6f4580d0c170ca25de3
07576a0b82f161ec3326f

Ranjani, can you send a patch to use CC_CHECK_CFLAGS_APPEND instead of
AX_CHECK_COMPILE_FLAG.

Thanks

Liam