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