--- Makefile.orig	2018-06-17 12:42:42 UTC
+++ Makefile
@@ -1,12 +1,13 @@
-CC=lazbuild
+LAZBUILD_CMD?=lazbuild -d
 ST=strip
-datadir  = $(DESTDIR)/usr/share/cqrlog
-bindir   = $(DESTDIR)/usr/bin
-sharedir = $(DESTDIR)/usr/share
+datadir  = $(DESTDIR)${PREFIX}/share/cqrlog
+bindir   = $(DESTDIR)${PREFIX}/bin
+sharedir = $(DESTDIR)${PREFIX}/share
 tmpdir   = /tmp
+mandir   = $(DESTDIR)${PREFIX}
 
 cqrlog: src/cqrlog.lpi
-	$(CC) --ws=gtk2 --pcp=$(tmpdir)/.lazarus src/cqrlog.lpi
+	$(LAZBUILD_CMD) $(LAZBUILD_ARGS) --ws=$(LCL_PLATFORM) --lazarusdir=$(LAZARUS_DIR) src/cqrlog.lpi
 	$(ST) src/cqrlog
 	gzip tools/cqrlog.1 -c > tools/cqrlog.1.gz
 
@@ -39,7 +40,7 @@ install:
 	install -d -v         $(sharedir)/icons/cqrlog
 	install -d -v         $(sharedir)/applications
 	install -d -v         $(sharedir)/appdata
-	install -d -v         $(sharedir)/man/man1
+	install -d -v         $(mandir)/man/man1
 	install    -v -m 0755 src/cqrlog $(bindir)
 	install    -v -m 0755 tools/cqrlog-apparmor-fix $(datadir)/cqrlog-apparmor-fix
 	install    -v -m 0644 ctyfiles/* $(datadir)/ctyfiles/
@@ -65,7 +66,7 @@ install:
 	install    -v -m 0644 images/icon/32x32/cqrlog.png $(sharedir)/pixmaps/cqrlog/cqrlog.png
 	install    -v -m 0644 images/icon/128x128/cqrlog.png $(sharedir)/icons/cqrlog.png
 	install    -v -m 0644 src/changelog.html $(datadir)/changelog.html
-	install    -v -m 0644 tools/cqrlog.1.gz $(sharedir)/man/man1/cqrlog.1.gz
+	install    -v -m 0644 tools/cqrlog.1.gz $(mandir)/man/man1/cqrlog.1.gz
 deb:
 	dpkg-buildpackage -rfakeroot -i -I
 deb_src: