[oe] Reg: Yocto build error( gcc_4.8)

[S. Lockwood-Childs]

On Wed, Jun 08, 2016 at 07:32:36AM +0200, Gary Thomas wrote:
> On 2016-06-08 07:20, Praveenreddy Padamati wrote:
> >Hi all,
> >
> >Please find the "gcc_4.8.bb, > do_compile failed with exit code".     error log below
> 
> Do you have any files using NFS (the Poky/Yocto tree, or the build tree)?
> That's not supported because of issues like this.
> 
> Also as mentioned, you have really old version - you should consider updating.
> 
> >| configure: loading cache ./config.cache
> >| configure: error: `CC' has changed since the previous run:
> >| configure:   former value:  `arm-poky-linux-gnueabi-gcc  -march=armv7-a -mthumb-interwork -mfloat-abi=hard -mfpu=neon -mtune=cortex-a9 --sysroot=/home/kumarn/fsl-release-bsp/build/tmp/sysroots/imx6dlsabresd'
> >| configure:   current value: `arm-poky-linux-gnueabi-gcc  -march=armv7-a -mthumb-interwork -mfloat-abi=hard -mfpu=neon -mtune=cortex-a9 --sysroot=/home/kumarn/fsl-release-bsp/build/tmp/sysroots/imx6qsabresd'
> >| configure: error: in `/home/kumarn/fsl-release-bsp/build/tmp/work/cortexa9hf-vfp-neon-poky-linux-gnueabi/gcc/4.8.2-r0/gcc-4.8.2/build.arm-poky-linux-gnueabi.arm-poky-linux-gnueabi/fixincludes':
> >| configure: error: changes in the environment can compromise the build
> >| configure: error: run `make distclean' and/or `rm ./config.cache' and start over
> >| configure: error: `CC' has changed since the previous run:
> >| configure:   former value:  `arm-poky-linux-gnueabi-gcc  -march=armv7-a -mthumb-interwork -mfloat-abi=hard -mfpu=neon -mtune=cortex-a9 --sysroot=/home/kumarn/fsl-release-bsp/build/tmp/sysroots/imx6dlsabresd'
> >| configure:   current value: `arm-poky-linux-gnueabi-gcc  -march=armv7-a -mthumb-interwork -mfloat-abi=hard -mfpu=neon -mtune=cortex-a9 --sysroot=/home/kumarn/fsl-release-bsp/build/tmp/sysroots/imx6qsabresd'
> >| configure: error: in `/home/kumarn/fsl-release-bsp/build/tmp/work/cortexa9hf-vfp-neon-poky-linux-gnueabi/gcc/4.8.2-r0/gcc-4.8.2/build.arm-poky-linux-gnueabi.arm-poky-linux-gnueabi/libiberty':
> >| configure: error: changes in the environment can compromise the build
> >| configure: error: run `make distclean' and/or `rm ./config.cache' and start over
> >| make[1]: *** [configure-fixincludes] Error 1
> >| make[1]: *** Waiting for unfinished jobs....
> >| make[1]: *** [configure-libiberty] Error 1

Yes 1.6 version was a while ago... bitbake got better at figuring out what to 
rebuild in modern times. Probably need to clobber the whole build/tmp area
after switching config from imx6dlsabresd to imx6qsabresd, to force a clean
start instead of assuming that an old bitbake will clean up everything that it
needs to.