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I have an error building B2G on Ubuntu 12.10. The Gecko build fails searching for librt.

The libraries are present on the system ...


    $ locate librt.so

    /home/user/src/MOZILLA/B2G/prebuilt/linux-x86/toolchain/i686-linux-glibc2.7-4.4.3/sysroot/usr/lib/librt.so
    /home/user/src/MOZILLA/B2G/prebuilt/linux-x86/toolchain/i686-linux-glibc2.7-4.4.3/sysroot/usr/lib/librt.so.1
    /home/user/src/MOZILLA/B2G/prebuilts/gcc/linux-x86/host/i686-linux-glibc2.7-4.6/sysroot/usr/lib/librt.so
    /home/user/src/MOZILLA/B2G/prebuilts/gcc/linux-x86/host/i686-linux-glibc2.7-4.6/sysroot/usr/lib/librt.so.1
    /home/user/src/MOZILLA/B2G/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6/sysroot/usr/lib/librt.so
    /home/user/src/MOZILLA/B2G/prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.7-4.6/sysroot/usr/lib/librt.so.1
    /lib/i386-linux-gnu/librt.so.1
    /lib/x86_64-linux-gnu/librt.so.1
    /lib32/librt.so.1
    /usr/lib/x86_64-linux-gnu/librt.so

... but the building process fails ...


    $ ./build.sh -j1 gecko

    TEST-PASS | check-sync-dirs.py | /home/user/src/MOZILLA/B2G/gecko/js/src/config <= /home/user/src/MOZILLA/B2G/gecko/config
    /home/user/src/MOZILLA/B2G/prebuilt/linux-x86/toolchain/i686-android-linux-4.4.3/bin/../lib/gcc/i686-android-linux/4.4.3/../../../../i686-android-linux/bin/ld: cannot find -lrt
    collect2: ld returned 1 exit status

Any idea ??

Thanks a lot !!

fccagou
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2 Answers2

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This bug has been discussed on the B2G Github account; https://github.com/mozilla-b2g/B2G/issues/181

It seems like the x86 builds are no longer supported and that you'll need to build for ARM.

Martin de Keijzer
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Mozilla suggests to use Ubuntu 12.04 x64 to build Gecko

SageNS
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