Fixing multiple QA issues
 * respect user {CC,CXX,LD}FLAGS
 * fix linking order
 * make job server for install phase

Don't install ivtv-ctl (bug #333291) and v4l2-ctl (bug #278255)
Don't install duplicate kernel headers (bug #244584)

https://bugs.gentoo.org/show_bug.cgi?id=321303

Patch written by Kacper Kowalik <xarthisius.kk@gmail.com>

--- test/Makefile
+++ test/Makefile
@@ -7,13 +7,13 @@
 	ivtv-osd-dma-test ivtv-fb-colormap-test \
 	ivtv-fb-16-bit-test ps-analyzer
 
-CFLAGS = -I../utils -D_GNU_SOURCE -O2 -Wall
-CXXFLAGS = $(CFLAGS)
-LDFLAGS = -lm
+CFLAGS += -I../utils -D_GNU_SOURCE -Wall
+CXXFLAGS += -I../utils -D_GNU_SOURCE -Wall
+LDLIBS = -lm
 
 all: $(EXES)
 
-install: all
+install:

 clean: 
 	rm -f *.o $(EXES)
--- utils/Makefile.orig	2010-05-24 15:35:11.321677941 +0000
+++ utils/Makefile	2010-05-24 15:35:15.595615306 +0000
@@ -9,41 +9,39 @@
 X86_EXES := ivtvplay ivtv-mpegindex #ivtv-encoder
 endif
 
-EXES := v4l2-ctl ivtv-ctl ivtv-radio $(X86_EXES)
+EXES := ivtv-radio $(X86_EXES)
 
 BIN := $(EXES) ivtv-tune/ivtv-tune cx25840ctl/cx25840ctl
 
 
 HEADERS := linux/ivtv.h linux/ivtvfb.h
 
-CFLAGS = -D_GNU_SOURCE -O2 -Wall -g -I.
-CXXFLAGS = $(CFLAGS)
+CFLAGS   += -D_GNU_SOURCE -Wall -I.
+CXXFLAGS += -D_GNU_SOURCE -Wall -I.
 
-all:: $(EXES)
-	$(MAKE) CFLAGS="$(CFLAGS)" -C ivtv-tune
-	$(MAKE) CFLAGS="$(CFLAGS)" -C cx25840ctl
+all: $(EXES)
+	$(MAKE) $(MAKEOPTS) CFLAGS="$(CFLAGS)" -C ivtv-tune
+	$(MAKE) $(MAKEOPTS) CFLAGS="$(CFLAGS)" -C cx25840ctl
 
 ivtv-ctl: ivtv-ctl.o
-	$(CC) -lm -o $@ $^
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ -lm
 
 v4l2-ctl: v4l2-ctl.o
-	$(CXX) -lm -o $@ $^
+	$(CXX) $(CXXFLAGS) $(LDFLAGS) -o $@ $^ -lm
 
 v4l2-dbg: v4l2-dbg.o v4l2-driverids.o v4l2-chipids.o
-	$(CXX) -lm -o $@ $^
+	$(CXX) $(CXXFLAGS) $(LDFLAGS) -o $@ $^ -lm
 
 ivtvplay: ivtvplay.cc
-	$(CXX) $(CXXFLAGS) -lm -lpthread -o $@ $^
+	$(CXX) $(CXXFLAGS) $(LDFLAGS) -o $@ $^ -lm -lpthread
 
 encoder.o: encoder.c
 	$(CC) $(CFLAGS) -DVIDEO_PORT=0 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -c $^
 
 ivtv-encoder: enc_mindex.o enc_chann.o encoder.o
-	$(CC) -lpthread -o $@ $^
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ -lpthread
 
-install: all
-	install -d $(DESTDIR)/$(HDRDIR)
-	install -m 0644 $(HEADERS) $(DESTDIR)/$(HDRDIR)
+install:
 	install -d $(DESTDIR)/$(BINDIR)
 	install -m 0755 $(BIN) $(DESTDIR)/$(BINDIR)
 
--- Makefile
+++ Makefile
@@ -1,6 +1,6 @@
 all clean install:
-	make -C utils $@
-	make -C test $@
+	$(MAKE) -C utils $@
+	$(MAKE) -C test $@
 
 distclean: clean