These is a race over the installation of files into the include/ directory between: | (cd `${PWDCMD-pwd}`/include ; \| tar -cf - .; exit 0) | (cd /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-oecore/build/build/tmp-eglibc/work/armv5te-oe-linux-gnueabi/gcc-cross-initial/4.8.2-r0/image/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-oecore/build/build/tmp-eglibc/sysroots/x86_64-linux/usr/lib/armv5te-oe-linux-gnueabi.gcc-cross-initial/gcc/arm-oe-linux-gnueabi/4.8.2/include; tar xpf - ) and | /bin/install -c -m 644 unwind.h /home/pokybuild/yocto-autobuilder/yocto-slave/nightly-oecore/build/build/tmp-eglibc/work/armv5te-oe-linux-gnueabi/gcc-cross-initial/4.8.2-r0/image/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-oecore/build/build/tmp-eglibc/sysroots/x86_64-linux/usr/lib/armv5te-oe-linux-gnueabi.gcc-cross-initial/gcc/arm-oe-linux-gnueabi/4.8.2/include | /bin/install: cannot create regular file '/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-oecore/build/build/tmp-eglibc/work/armv5te-oe-linux-gnueabi/gcc-cross-initial/4.8.2-r0/image/home/pokybuild/yocto-autobuilder/yocto-slave/nightly-oecore/build/build/tmp-eglibc/sysroots/x86_64-linux/usr/lib/armv5te-oe-linux-gnueabi.gcc-cross-initial/gcc/arm-oe-linux-gnueabi/4.8.2/include/unwind.h': File exists | make[1]: *** [install-unwind_h] Error 1 which under the right circumstances leads to the above build failure. Since we don't need two copies of this file and we don't use install-no-fixincludes, we can disable the libgcc installation. RP 2014/04/10 Upstream-Status: Pending [would need a rewrite into an acceptable patch form] Index: gcc-4.8.2/libgcc/Makefile.in =================================================================== --- gcc-4.8.2.orig/libgcc/Makefile.in 2013-02-04 19:06:20.000000000 +0000 +++ gcc-4.8.2/libgcc/Makefile.in 2014-04-10 09:58:33.018748787 +0000 @@ -1020,8 +1020,8 @@ # This is however useful for "install-no-fixincludes" case, when only the gcc # internal headers are copied by gcc's install. install-unwind_h: - $(mkinstalldirs) $(DESTDIR)$(libsubdir)/include - $(INSTALL_DATA) unwind.h $(DESTDIR)$(libsubdir)/include +# $(mkinstalldirs) $(DESTDIR)$(libsubdir)/include +# $(INSTALL_DATA) unwind.h $(DESTDIR)$(libsubdir)/include all: install-unwind_h-forbuild