kiss: stop making build file modifiable by hooks

This was half-assed. I'd much prefer we keep things simple and users
use repositories for this purpose. Either full or partial forks. This
is "proper" and stores the build configuration

kiss

@@ -632,17 +632,13 @@ pkg_build() {
         # Log the version so we can pass it to the package build file.
         read -r build_version _ < "$repo_dir/version"
 
-        # Copy the build file to the build directory to users to modify it
-        # temporarily at runtime.
-        cp -f "$repo_dir/build" "$mak_dir/$pkg/.build.kiss"
-
         log "$pkg" "Starting build"
         run_hook pre-build "$pkg" "$pkg_dir/$pkg"
 
         # Call the build script, log the output to the terminal and to a file.
         # There's no PIPEFAIL in POSIX shelll so we must resort to tricks like
         # killing the script ourselves.
-        { ./.build.kiss "$pkg_dir/$pkg" "$build_version" 2>&1 || {
+        { "$repo_dir/build" "$pkg_dir/$pkg" "$build_version" 2>&1 || {
             log "$pkg" "Build failed"
             log "$pkg" "Log stored to $log_dir/$pkg-$time-$pid"
             run_hook build-fail "$pkg" "$pkg_dir/$pkg"