[Bug 872370] Re: iputils fails to cross-build

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** Tags added: patch

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https://bugs.launchpad.net/bugs/872370

Title:
  iputils fails to cross-build

Status in “iputils” package in Ubuntu:
  Confirmed

Bug description:
  
  The build command is:
  xdeb --only-explicit -a armel --prefer-apt --apt-source --debug --force-rebuild iputils

  The actual build command xdeb issues is:
  debuild --no-lintian -eUSER -eCONFIG_SITE=/etc/dpkg-cross/cross-config.armel -eDEB_BUILD_OPTIONS=nocheck -eGTEST_INCLUDEDIR=/usr/arm-linux-gnueabi/include -eGTEST_LIBDIR=/usr/arm-linux-gnueabi/lib -ePKG_CONFIG_LIBDIR=/usr/arm-linux-gnueabi/lib/pkgconfig:/usr/arm-linux-gnueabi/share/pkgconfig:/usr/share/pkgconfig -eDH_VERBOSE=1 -aarmel -b -uc -us -tc

  To easily reproduce the build environment in which this bug was discovered follow the HOWTO here:
  https://wiki.linaro.org/Platform/DevPlatform/CrossCompile/CrossBuildNano

  Setting 'buildlist' to just be the one line:
  iputils
  would mean it only builds this package and not lots of others too.

  The error is:
  dh_strip
          arm-linux-gnueabi-strip --remove-section=.comment --remove-section=.note debian/iputils-ping/bin/ping6
  arm-linux-gnueabi-strip:debian/iputils-ping/bin/ping6: File format not recognized

  The problem is that the build-arch compiler is used, not the target-arch compiler:
  gcc -Wl,-Bsymbolic-functions  ping.o ping_common.o   -o ping

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