#!/usr/bin/env bash
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# This is a script to find, and correct, a problem with old versions of
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# configure that affect powerpc64 and powerpc64le.
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# The issue causes configure to incorrectly determine that shared library
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# support is not present in the linker. This causes the package to build a
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# static library rather than a dynamic one and although the build will succeed,
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# it may cause packages that link with the static library it to fail due to
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# undefined symbols.
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# This script searches for files named 'configure' that appear to have this
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# issue (by searching for a known bad pattern) and patching them.
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set -e
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if [ $# -ne 1 ]; then
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echo "Usage: $0 <package build directory>"
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exit 2
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fi
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srcdir="$1"
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files=$(cd "$srcdir" && find . -name configure \
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-exec grep -qF 'Generated by GNU Autoconf' {} \; \
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-exec grep -qF 'ppc*-*linux*|powerpc*-*linux*)' {} \; -print)
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# --ignore-whitespace is needed because some packages have included
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# copies of configure scripts where tabs have been replaced with spaces.
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for c in $files; do
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patch --ignore-whitespace "$srcdir"/"$c" <<'EOF'
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--- a/configure 2016-11-16 15:31:46.097447271 +1100
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+++ b/configure 2008-07-21 12:17:23.000000000 +1000
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@@ -4433,7 +4433,10 @@
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x86_64-*linux*)
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LD="${LD-ld} -m elf_x86_64"
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;;
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- ppc*-*linux*|powerpc*-*linux*)
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+ powerpcle-*linux*)
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+ LD="${LD-ld} -m elf64lppc"
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+ ;;
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+ powerpc-*linux*)
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LD="${LD-ld} -m elf64ppc"
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;;
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s390*-*linux*)
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EOF
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done
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