- Fix building with --as-needed
- Fix parallel make by defining two new targets
- Fix one spelling error
- Respect CFLAGS, LDFLAGS
- Link GTK frontend against -lX11 since it uses XOpenDisplay all the time

--- a/configure.in
+++ b/configure.in
@@ -141,7 +141,7 @@
 if [test "$HAVE_NVCONTROL" = "yes"]; then
     echo "- NV-CONTROL support enabled"
 else
-    echo "- NV-CONROL support disabled"
+    echo "- NV-CONTROL support disabled"
 fi
 if [test "$HAVE_GTK2" = "yes"]; then
     echo "- GTK2 GUI enabled"
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -16,7 +16,7 @@
 ifeq ($(HAVE_NVCONTROL), yes)
     DEPS=$(libbackend) $(libnvcontrol)
     INCLUDES=@X11_CFLAGS@ -I./backend -I./nvcontrol -I..
-    LIBS=@X11_LIBS@ -L./backend -lbackend -L./nvcontrol -lnvcontrol
+    LIBS=-L./backend -lbackend -L./nvcontrol -lnvcontrol @X11_LIBS@
 else
     DEPS=$(libbackend)
     INCLUDES=-I./backend -I./nvcontrol -I..
@@ -30,12 +30,17 @@
 
 all: all-recursive nvclock smartdimmer
 
+$(libbackend):
+	$(MAKE) -C backend
+
+$(libnvcontrol):
+	$(MAKE) -C nvcontrol
 
 nvclock: $(DEPS) $(LIB) nvclock.c
-	$(CC) $(CFLAGS) -o nvclock $(nvclock_SOURCES) $(INCLUDES) $(LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o nvclock $(nvclock_SOURCES) $(INCLUDES) $(LIBS)
 
 smartdimmer: $(DEPS) $(LIB) smartdimmer.c
-	$(CC) $(CFLAGS) -o smartdimmer $(smartdimmer_SOURCES) $(INCLUDES) $(LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o smartdimmer $(smartdimmer_SOURCES) $(INCLUDES) $(LIBS)
 
 
 clean: clean-recursive clean-app
--- a/src/gtk/Makefile.in
+++ b/src/gtk/Makefile.in
@@ -27,6 +27,7 @@
     LIBS=@GTK_LIBS@ -L../backend -lbackend
     OBJECTS=banner.o hw.o main.o settings.o
 endif
+LIBS += -lX11
 
 
 .PHONY: clean distclean install
@@ -33,7 +33,7 @@
 all: $(PROGRAM)
 
 nvclock_gtk: $(DEPS) $(OBJECTS)
-	$(CC) $(CFLAGS) -o nvclock_gtk $(OBJECTS) $(libbackend) $(LIBS)
+	$(CC) $(CFLAGS) $(LDFLAGS) -o nvclock_gtk $(OBJECTS) $(libbackend) $(LIBS)
 
 clean:
 	rm -f nvclock_gtk *.core *.o *.exe
--- a/src/qt/Makefile.in
+++ b/src/qt/Makefile.in
@@ -31,7 +31,7 @@
 all: $(PROGRAM)
 
 nvclock_qt: $(DEPS) qt_nvclock.moc qt_xfree.moc $(OBJECTS)
-	$(CXX) $(CXXFLAGS) -o nvclock_qt $(CXXFLAGS) $(OBJECTS) $(LIBS) 
+	$(CXX) $(CXXFLAGS) $(LDFLAGS) -o nvclock_qt $(OBJECTS) $(LIBS) 
 
 clean:
 	rm -f nvclock_qt *.core *.moc *.o
--- a/src/backend/Makefile.in
+++ b/src/backend/Makefile.in
@@ -1,11 +1,11 @@
-CC=@CC@ -O0
+CC=@CC@
 AR=ar
 RANLIB=@RANLIB@
 
 system=@system@
 HAVE_NVCONTROL=@HAVE_NVCONTROL@
 OBJECTS=backend.o bios.o config.o error.o nv30.o nv40.o nv50.o info.o overclock.o utils.o i2c.o xf86i2c.o adt7473.o f75375.o lm99.o w83781d.o w83l785r.o libc_wrapper.o
-CFLAGS=@X11_CFLAGS@ -I../.. -I../nvcontrol
+CFLAGS=@CFLAGS@ @X11_CFLAGS@ -I../.. -I../nvcontrol
 
 ifeq ($(system), FreeBSD)
     OBJECTS+=back_bsd.o