stage2-gcc-fixed-headers.morph


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name: stage2-gcc-fixed-headers
kind: chunk
install-commands:
    # Stage 1 GCC's fixincludes process created a limits.h before there was
    # a real limits.h available for the target. This step (taken from Linux
    # Linux From Scratch) creates a better one so that stage 2 GCC can compile.
    #
    # THIS IS A FRAGILE HACK! We need to replace the headers. The only way to
    # overwrite files in a staging area is to install a new chunk.
    # This is undesired behaviour in the long term, as we want to never
    # have overlaps, so this functionality may go away.
    - |
      libgcc_dir=$(dirname $($TARGET_STAGE1-gcc -print-libgcc-file-name))
      sysroot="$(dirname "$(pwd)")"
      target_libgcc_dir="${libgcc_dir#$sysroot}"
      mkdir -p "$DESTDIR/$target_libgcc_dir/include-fixed"
      cat "gcc/limitx.h" "gcc/glimits.h" "gcc/limity.h" \
          >"$DESTDIR/$target_libgcc_dir/include-fixed/limits.h"