mirror of
https://github.com/privatevoid-net/nix-super.git
synced 2024-11-10 16:26:18 +02:00
e1a6fb7870
dependencyClosure { ... searchPath = [ ../foo ../bar ]; ... }
* Primop `dirOf' to return the directory part of a path (e.g., dirOf
/a/b/c == /a/b).
* Primop `relativise' (according to Webster that's a real word!) that
given paths A and B returns a string representing path B relative
path to A; e.g., relativise /a/b/c a/b/x/y => "../x/y".
73 lines
1.9 KiB
Bash
73 lines
1.9 KiB
Bash
. $stdenv/setup
|
|
|
|
mainName=$(basename $main | cut -c34-)
|
|
|
|
echo "compiling \`$mainName'..."
|
|
|
|
# Turn $localIncludes into an array.
|
|
localIncludes=($localIncludes)
|
|
|
|
# Determine how many `..' levels appear in the header file references.
|
|
# E.g., if there is some reference `../../foo.h', then we have to
|
|
# insert two extra levels in the directory structure, so that `a.c' is
|
|
# stored at `dotdot/dotdot/a.c', and a reference from it to
|
|
# `../../foo.h' resolves to `dotdot/dotdot/../../foo.h' == `foo.h'.
|
|
n=0
|
|
maxDepth=0
|
|
for ((n = 0; n < ${#localIncludes[*]}; n += 2)); do
|
|
target=${localIncludes[$((n + 1))]}
|
|
|
|
# Split the target name into path components using some IFS magic.
|
|
savedIFS="$IFS"
|
|
IFS=/
|
|
components=($target)
|
|
depth=0
|
|
for ((m = 0; m < ${#components[*]}; m++)); do
|
|
c=${components[m]}
|
|
if test "$c" = ".."; then
|
|
depth=$((depth + 1))
|
|
fi
|
|
done
|
|
IFS="$savedIFS"
|
|
|
|
if test $depth -gt $maxDepth; then
|
|
maxDepth=$depth;
|
|
fi
|
|
done
|
|
|
|
# Create the extra levels in the directory hierarchy.
|
|
prefix=
|
|
for ((n = 0; n < maxDepth; n++)); do
|
|
prefix="dotdot/$prefix"
|
|
done
|
|
|
|
# Create symlinks to the header files.
|
|
for ((n = 0; n < ${#localIncludes[*]}; n += 2)); do
|
|
source=${localIncludes[n]}
|
|
target=${localIncludes[$((n + 1))]}
|
|
|
|
# Create missing directories. We use IFS magic to split the path
|
|
# into path components.
|
|
savedIFS="$IFS"
|
|
IFS=/
|
|
components=($prefix$target)
|
|
fullPath=(.)
|
|
for ((m = 0; m < ${#components[*]} - 1; m++)); do
|
|
fullPath=("${fullPath[@]}" ${components[m]})
|
|
if ! test -d "${fullPath[*]}"; then
|
|
mkdir "${fullPath[*]}"
|
|
fi
|
|
done
|
|
IFS="$savedIFS"
|
|
|
|
ln -sf $source $prefix$target
|
|
done
|
|
|
|
# Create a symlink to the main file.
|
|
if ! test "$(readlink $prefix$mainName)" = $main; then
|
|
ln -s $main $prefix$mainName
|
|
fi
|
|
|
|
mkdir $out
|
|
test "$prefix" && cd $prefix
|
|
gcc -Wall $cFlags -c $mainName -o $out/$mainName.o
|