diff -Naur apg-2.3.0b.orig/Makefile apg-2.3.0b/Makefile
--- apg-2.3.0b.orig/Makefile	2003-08-07 12:40:39.000000000 -0300
+++ apg-2.3.0b/Makefile	2009-06-24 00:12:27.000000000 -0300
@@ -1,7 +1,7 @@
 ##################################################################
 # Directories
 # Install dirs
-INSTALL_PREFIX = /usr/local
+INSTALL_PREFIX = /usr
 
 # Full default path is /usr/local/bin
 APG_BIN_DIR = /bin
@@ -144,22 +144,22 @@
 
 install:
 	if test -x ./apg; then \
-./mkinstalldirs ${INSTALL_PREFIX}${APG_BIN_DIR}; \
-./mkinstalldirs ${INSTALL_PREFIX}${APG_MAN_DIR}; \
-./install-sh -c -m 0755 -o root -g ${FIND_GROUP} ./apg ${INSTALL_PREFIX}${APG_BIN_DIR}; \
-./install-sh -c -m 0444 ./doc/man/apg.1 ${INSTALL_PREFIX}${APG_MAN_DIR}; \
+./mkinstalldirs ${DESTDIR}/${INSTALL_PREFIX}${APG_BIN_DIR}; \
+./mkinstalldirs ${DESTDIR}/${INSTALL_PREFIX}${APG_MAN_DIR}; \
+./install-sh -c -m 0755 -o root -g ${FIND_GROUP} ./apg ${DESTDIR}/${INSTALL_PREFIX}${APG_BIN_DIR}; \
+./install-sh -c -m 0444 ./doc/man/apg.1 ${DESTDIR}/${INSTALL_PREFIX}${APG_MAN_DIR}; \
 fi
 	if test -x ./apgd; then \
-./mkinstalldirs ${INSTALL_PREFIX}${APGD_BIN_DIR}; \
-./mkinstalldirs ${INSTALL_PREFIX}${APGD_MAN_DIR}; \
-./install-sh -c -m 0755 -o root -g ${FIND_GROUP} ./apgd ${INSTALL_PREFIX}${APGD_BIN_DIR}; \
-./install-sh -c -m 0444 ./doc/man/apgd.8 ${INSTALL_PREFIX}${APGD_MAN_DIR}; \
+./mkinstalldirs ${DESTDIR}/${INSTALL_PREFIX}${APGD_BIN_DIR}; \
+./mkinstalldirs ${DESTDIR}/${INSTALL_PREFIX}${APGD_MAN_DIR}; \
+./install-sh -c -m 0755 -o root -g ${FIND_GROUP} ./apgd ${DESTDIR}/${INSTALL_PREFIX}${APGD_BIN_DIR}; \
+./install-sh -c -m 0444 ./doc/man/apgd.8 ${DESTDIR}/${INSTALL_PREFIX}${APGD_MAN_DIR}; \
 fi
 	if test -x ./apgbfm; then \
-./mkinstalldirs ${INSTALL_PREFIX}${APG_BIN_DIR}; \
-./mkinstalldirs ${INSTALL_PREFIX}${APG_MAN_DIR}; \
-./install-sh -c -m 0755 -o root -g ${FIND_GROUP} ./apgbfm ${INSTALL_PREFIX}${APG_BIN_DIR}; \
-./install-sh -c -m 0444 ./doc/man/apgbfm.1 ${INSTALL_PREFIX}${APG_MAN_DIR}; \
+./mkinstalldirs ${DESTDIR}/${INSTALL_PREFIX}${APG_BIN_DIR}; \
+./mkinstalldirs ${DESTDIR}/${INSTALL_PREFIX}${APG_MAN_DIR}; \
+./install-sh -c -m 0755 -o root -g ${FIND_GROUP} ./apgbfm ${DESTDIR}/${INSTALL_PREFIX}${APG_BIN_DIR}; \
+./install-sh -c -m 0444 ./doc/man/apgbfm.1 ${DESTDIR}/${INSTALL_PREFIX}${APG_MAN_DIR}; \
 fi
 
 install-cygwin: