Makefiles: Use PREFIX instead of DESTDIR in simavr.pc

This is needed when DESTDIR does not equal the actual intended
destination (this usually occurs when building packages for
distribution).

An example make invocation:

make DESTDIR=pkg/usr PREFIX=/usr install

diff --git a/simavr/Makefile b/simavr/Makefile
index 0894c16..f701b0b 100644 (file)
--- a/simavr/Makefile
+++ b/simavr/Makefile
@@ -82,6 +82,7 @@ clean: clean-${OBJ}
        rm -rf ${target} *.a *.so
 
 DESTDIR = /usr/local
+PREFIX = ${DESTDIR}
 
 install : all
        $(MKDIR) $(DESTDIR)/include/simavr/avr
@@ -91,7 +92,7 @@ install : all
        $(MKDIR) $(DESTDIR)/lib
        $(INSTALL) ${OBJ}/libsimavr.a $(DESTDIR)/lib/
        $(MKDIR) $(DESTDIR)/lib/pkgconfig/
-       sed -e "s|PREFIX|${DESTDIR}|g" -e "s|VERSION|${SIMAVR_VERSION}|g" \
+       sed -e "s|PREFIX|${PREFIX}|g" -e "s|VERSION|${SIMAVR_VERSION}|g" \
                simavr.pc >$(DESTDIR)/lib/pkgconfig/simavr.pc
 ifeq (${shell uname}, Linux)
        $(INSTALL) ${OBJ}/libsimavr.so.1 $(DESTDIR)/lib/