424 lines
8.3 KiB
Bash
424 lines
8.3 KiB
Bash
set -e
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test -z $NIX_GCC && NIX_GCC=@gcc@
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# Set up the initial path.
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PATH=
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for i in $NIX_GCC @initialPath@; do
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PATH=$PATH${PATH:+:}$i/bin
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done
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if test "$NIX_DEBUG" = "1"; then
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echo "Initial path: $PATH"
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fi
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# Execute the pre-hook.
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export SHELL=@shell@
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param1=@param1@
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param2=@param2@
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param3=@param3@
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param4=@param4@
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param5=@param5@
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if test -n "@preHook@"; then
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. @preHook@
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fi
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# Check that the pre-hook initialised SHELL.
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if test -z "$SHELL"; then echo "SHELL not set"; exit 1; fi
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# Hack: run gcc's setup hook.
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envHooks=()
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if test -f $NIX_GCC/nix-support/setup-hook; then
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. $NIX_GCC/nix-support/setup-hook
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fi
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# Recursively find all build inputs.
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findInputs()
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{
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local pkg=$1
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case $pkgs in
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*\ $pkg\ *)
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return 0
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;;
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esac
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pkgs="$pkgs $pkg "
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if test -f $pkg/nix-support/setup-hook; then
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. $pkg/nix-support/setup-hook
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fi
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if test -f $pkg/nix-support/propagated-build-inputs; then
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for i in $(cat $pkg/nix-support/propagated-build-inputs); do
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findInputs $i
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done
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fi
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}
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pkgs=""
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if test -n "$buildinputs"; then
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buildInputs="$buildinputs" # compatibility
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fi
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for i in $buildInputs $propagatedBuildInputs; do
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findInputs $i
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done
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# Set the relevant environment variables to point to the build inputs
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# found above.
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addToEnv()
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{
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local pkg=$1
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if test -d $1/bin; then
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export _PATH=$_PATH${_PATH:+:}$1/bin
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fi
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for i in "${envHooks[@]}"; do
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$i $pkg
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done
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}
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for i in $pkgs; do
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addToEnv $i
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done
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# Add the output as an rpath.
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if test "$NIX_NO_SELF_RPATH" != "1"; then
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export NIX_LDFLAGS="-rpath $out/lib $NIX_LDFLAGS"
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fi
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# Strip debug information by default.
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export NIX_STRIP_DEBUG=1
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export NIX_CFLAGS_STRIP="-g0 -Wl,-s"
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# Do we know where the store is? This is required for purity checking.
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if test -z "$NIX_STORE"; then
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echo "Error: you have an old version of Nix that does not set the" \
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"NIX_STORE variable. Please upgrade." >&2
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exit 1
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fi
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# We also need to know the root of the build directory for purity checking.
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if test -z "$NIX_BUILD_TOP"; then
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echo "Error: you have an old version of Nix that does not set the" \
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"NIX_BUILD_TOP variable. Please upgrade." >&2
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exit 1
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fi
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# Set the TZ (timezone) environment variable, otherwise commands like
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# `date' will complain (e.g., `Tue Mar 9 10:01:47 Local time zone must
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# be set--see zic manual page 2004').
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export TZ=UTC
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# Execute the post-hook.
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if test -n "@postHook@"; then
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. @postHook@
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fi
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PATH=$_PATH${_PATH:+:}$PATH
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if test "$NIX_DEBUG" = "1"; then
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echo "Final path: $PATH"
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fi
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######################################################################
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# What follows is the generic builder.
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nestingLevel=0
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startNest() {
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nestingLevel=$(($nestingLevel + 1))
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echo -en "\e[$1p"
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}
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stopNest() {
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nestingLevel=$(($nestingLevel - 1))
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echo -en "\e[q"
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}
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header() {
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startNest "$2"
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echo "$1"
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}
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# Make sure that even when we exit abnormally, the original nesting
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# level is properly restored.
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closeNest() {
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while test $nestingLevel -gt 0; do
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stopNest
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done
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}
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trap "closeNest" EXIT
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# Utility function: return the base name of the given path, with the
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# prefix `HASH-' removed, if present.
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stripHash() {
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strippedName=$(basename $1);
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if echo "$strippedName" | grep -q '^[a-f0-9]\{32\}-'; then
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strippedName=$(echo "$strippedName" | cut -c34-)
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fi
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}
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unpackFile() {
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local file=$1
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local cmd
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case $file in
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*.tar) cmd="tar xvf $file";;
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*.tar.gz | *.tgz | *.tar.Z) cmd="tar xvfz $file";;
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*.tar.bz2 | *.tbz2) cmd="tar xvfj $file";;
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*.zip) cmd="unzip $file";;
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*)
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if test -d "$file"; then
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stripHash $file
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cmd="cp -prvd $file $strippedName"
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else
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if test -n "$findUnpacker"; then
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$findUnpacker $1;
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fi
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if test -z "$unpackCmd"; then
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echo "source archive $file has unknown type"
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exit 1
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fi
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cmd=$unpackCmd
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fi
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;;
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esac
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header "unpacking source archive $file (using $cmd)" 3
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$cmd
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stopNest
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}
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unpackW() {
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if test -n "$unpackPhase"; then
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$unpackPhase
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return
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fi
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if test -z "$srcs"; then
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if test -z "$src"; then
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echo 'variable $src or $srcs should point to the source'
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exit 1
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fi
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srcs="$src"
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fi
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# To determine the source directory created by unpacking the
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# source archives, we record the contents of the current
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# directory, then look below which directory got added. Yeah,
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# it's rather hacky.
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local dirsBefore=""
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for i in *; do
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if test -d "$i"; then
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dirsBefore="$dirsBefore $i "
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fi
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done
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# Unpack all source archives.
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for i in $srcs; do
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unpackFile $i
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done
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# Find the source directory.
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if test -n "$setSourceRoot"; then
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$setSourceRoot
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else
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sourceRoot=
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for i in *; do
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if test -d "$i"; then
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case $dirsBefore in
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*\ $i\ *)
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;;
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*)
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if test -n "$sourceRoot"; then
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echo "unpacker produced multiple directories"
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exit 1
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fi
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sourceRoot=$i
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;;
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esac
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fi
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done
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fi
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if test -z "$sourceRoot"; then
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echo "unpacker appears to have produced no directories"
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exit 1
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fi
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echo "source root is $sourceRoot"
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if test -n "$postUnpack"; then
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$postUnpack
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fi
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}
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unpackPhase() {
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header "unpacking sources"
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unpackW
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stopNest
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}
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patchW() {
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if test -n "$patchPhase"; then
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$patchPhase
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return
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fi
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for i in $patches; do
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header "applying patch $i" 3
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patch -p1 < $i
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stopNest
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done
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}
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patchPhase() {
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if test -z "$patchPhase" -a -z "$patches"; then return; fi
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header "patching sources"
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patchW
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stopNest
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}
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fixLibtool() {
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sed 's^eval sys_lib_.*search_path=.*^^' < $1 > $1.tmp
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mv $1.tmp $1
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}
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configureW() {
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if test -n "$configurePhase"; then
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$configurePhase
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return
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fi
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if test -n "$preConfigure"; then
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$preConfigure
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fi
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if test -z "$configureScript"; then
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configureScript=./configure
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if ! test -x $configureScript; then
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echo "no configure script, doing nothing"
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return
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fi
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fi
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if test -z "$dontFixLibtool"; then
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for i in $(find . -name "ltmain.sh"); do
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echo "fixing libtool script $i"
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fixLibtool $i
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done
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fi
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if test -z "$dontAddPrefix"; then
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configureFlags="--prefix=$out $configureFlags"
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fi
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echo "configure flags: $configureFlags"
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$configureScript $configureFlags
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if test -n "$postConfigure"; then
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$postConfigure
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fi
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}
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configurePhase() {
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header "configuring"
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configureW
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stopNest
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}
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buildW() {
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if test -n "$buildPhase"; then
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$buildPhase
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return
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fi
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if test -z "$dontMake"; then
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echo "make flags: $makeFlags"
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make $makeFlags
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fi
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}
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buildPhase() {
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header "building"
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buildW
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stopNest
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}
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installW() {
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if test -n "$installPhase"; then
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$installPhase
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return
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fi
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if test -n "$preInstall"; then
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$preInstall
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fi
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if ! test -x "$out"; then mkdir "$out"; fi
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if test -z "$dontMakeInstall"; then
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echo "install flags: $installFlags"
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make install $installFlags
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fi
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if test -z "$dontStrip" -a "$NIX_STRIP_DEBUG" = 1; then
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find "$out" -name "*.a" -exec echo stripping {} \; -exec strip -S {} \;
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fi
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if test -n "$propagatedBuildInputs"; then
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if ! test -x "$out/nix-support"; then mkdir "$out/nix-support"; fi
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echo "$propagatedBuildInputs" > "$out/nix-support/propagated-build-inputs"
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fi
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if test -n "$postInstall"; then
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$postInstall
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fi
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}
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installPhase() {
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header "installing"
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installW
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stopNest
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}
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genericBuild() {
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header "building $out"
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unpackPhase
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cd $sourceRoot
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patchPhase
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configurePhase
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buildPhase
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installPhase
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stopNest
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}
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