diff -u -r ../libtermkey-0.17/Makefile ./Makefile
--- ../libtermkey-0.17/Makefile	2014-01-06 13:03:51.000000000 -0500
+++ ./Makefile	2015-03-02 15:49:31.323905282 -0500
@@ -19,12 +19,14 @@
   LDFLAGS+=-pg
 endif
 
-ifeq ($(shell pkg-config --atleast-version=0.1.0 unibilium && echo 1),1)
-  CFLAGS +=$(shell pkg-config --cflags unibilium) -DHAVE_UNIBILIUM
-  LDFLAGS+=$(shell pkg-config --libs   unibilium)
-else ifeq ($(shell pkg-config ncursesw && echo 1),1)
-  CFLAGS +=$(shell pkg-config --cflags ncursesw)
-  LDFLAGS+=$(shell pkg-config --libs   ncursesw)
+PKG_CONFIG?=pkg-config
+
+ifeq ($(shell $(PKG_CONFIG) --atleast-version=0.1.0 unibilium && echo 1),1)
+  CFLAGS +=$(shell $(PKG_CONFIG) --cflags unibilium) -DHAVE_UNIBILIUM
+  LDFLAGS+=$(shell $(PKG_CONFIG) --libs   unibilium)
+else ifeq ($(shell $(PKG_CONFIG) ncursesw && echo 1),1)
+  CFLAGS +=$(shell $(PKG_CONFIG) --cflags ncursesw)
+  LDFLAGS+=$(shell $(PKG_CONFIG) --libs   ncursesw)
 else
   LDFLAGS+=-lncurses
 endif
@@ -34,7 +36,7 @@
 
 DEMOS=demo demo-async
 
-ifeq ($(shell pkg-config glib-2.0 && echo 1),1)
+ifeq ($(shell $(PKG_CONFIG) glib-2.0 && echo 1),1)
   DEMOS+=demo-glib
 endif
 
@@ -50,7 +52,7 @@
 VERSION_REVISION=0
 VERSION_AGE=11
 
-PREFIX=/usr/local
+PREFIX?=/usr/local
 LIBDIR=$(PREFIX)/lib
 INCDIR=$(PREFIX)/include
 MANDIR=$(PREFIX)/share/man
@@ -72,10 +74,10 @@
 	$(LIBTOOL) --mode=link --tag=CC $(CC) -o $@ $^
 
 demo-glib.lo: demo-glib.c termkey.h
-	$(LIBTOOL) --mode=compile --tag=CC $(CC) -o $@ -c $< $(shell pkg-config glib-2.0 --cflags)
+	$(LIBTOOL) --mode=compile --tag=CC $(CC) -o $@ -c $< $(shell $(PKG_CONFIG) glib-2.0 --cflags)
 
 demo-glib: $(LIBRARY) demo-glib.lo
-	$(LIBTOOL) --mode=link --tag=CC $(CC) -o $@ $^ $(shell pkg-config glib-2.0 --libs)
+	$(LIBTOOL) --mode=link --tag=CC $(CC) -o $@ $^ $(shell $(PKG_CONFIG) glib-2.0 --libs)
 
 t/%.t: t/%.c $(LIBRARY) t/taplib.lo
 	$(LIBTOOL) --mode=link --tag=CC $(CC) -o $@ $^