# @FUNCTION: exprefixify

# @USAGE: <directory>

# @DESCRIPTION:

# For each ELF executable in given directory replaces the path to

# program interpreter (i.e. the dynamic loader, for example

# '/lib64/ld-linux-x86-64.so.2') with the path where the prefix is

# appended the original path.

# NOTE: ebuilds that call this must add dev-util/patchelf to DEPENDS

exprefixify() {

	local dir="$1"

	einfo "Prefixifying executables in ${dir}..."

	type -P patchelf 1>/dev/null || die "patchelf not found (add dev-util/patchelf to DEPENDS)"

	# The first -exec is to filter out non-ELF executables

	find "${dir}" \

		\( -type f -or -type l \) -executable \

		-not \( -name '*.la' -or -name '*.a' -or -name '*.so.*' -or -name '*.so' \) \

		-exec sh -c 'patchelf --print-interpreter {} 1>/dev/null 2>/dev/null' \; \

		-exec sh -c 'patchelf --set-interpreter ${EPREFIX}/$(patchelf --print-interpreter {}) {}' \; \

	       || die

}