Make clear that LIBEXECDIR is an option.
VERSION=1.4.0
PREFIX?=/usr/local
VERSION=1.4.0
PREFIX?=/usr/local
+LIBEXECDIR?=$(PREFIX)/libexec
PKG_CONFIG?=pkg-config
INSTALL=install
LN=ln
PKG_CONFIG?=pkg-config
INSTALL=install
LN=ln
ROOT_SBINDIR?=$(PREFIX)/sbin
INITRAMFS_DIR=/etc/initramfs-tools
endif
ROOT_SBINDIR?=$(PREFIX)/sbin
INITRAMFS_DIR=/etc/initramfs-tools
endif
-LIBEXECDIR=$(PREFIX)/libexec
PKGCONFIG_SERVICEDIR:=$(shell $(PKG_CONFIG) --variable=systemdsystemunitdir systemd)
ifeq (,$(PKGCONFIG_SERVICEDIR))
PKGCONFIG_SERVICEDIR:=$(shell $(PKG_CONFIG) --variable=systemdsystemunitdir systemd)
ifeq (,$(PKGCONFIG_SERVICEDIR))