-LIBDIVECOMPUTERDIR = /usr/local
-LIBDIVECOMPUTERINCLUDES = $(LIBDIVECOMPUTERDIR)/include/libdivecomputer
-LIBDIVECOMPUTERARCHIVE = $(LIBDIVECOMPUTERDIR)/lib/libdivecomputer.a
+NAME = subsurface
+ICONFILE = $(NAME).svg
+DESKTOPFILE = $(NAME).desktop
+MANFILES = $(NAME).1
+
+# find libdivecomputer; we don't trust pkg-config here given how young
+# libdivecomputer still is - so we check /usr/local and /usr and then we
+# give up. You can override by simply setting it here
+#
+libdc-local := $(wildcard /usr/local/include/libdivecomputer/*)
+libdc-usr := $(wildcard /usr/include/libdivecomputer/*)
+
+ifneq ($(strip $(libdc-local)),)
+ LIBDIVECOMPUTERDIR = /usr/local
+ LIBDIVECOMPUTERINCLUDES = $(LIBDIVECOMPUTERDIR)/include/libdivecomputer
+ LIBDIVECOMPUTERARCHIVE = $(LIBDIVECOMPUTERDIR)/lib/libdivecomputer.a
+else ifneq ($(strip $(libdc-usr)),)
+ LIBDIVECOMPUTERDIR = /usr
+ LIBDIVECOMPUTERINCLUDES = $(LIBDIVECOMPUTERDIR)/include/libdivecomputer
+ LIBDIVECOMPUTERARCHIVE = $(LIBDIVECOMPUTERDIR)/lib/libdivecomputer.a
+else
+$(error Cannot find libdivecomputer - please edit Makefile)
+endif