Made XFLAGS & XLIBS macros only

Makefile

@@ -1,10 +1,14 @@
-VERSION = git-20110911
+VERSION = git-20110912
 
 CC      = gcc
 CFLAGS  = -Wall -pedantic -O2
 LDFLAGS =
 LIBS    = -lX11 -lImlib2
 
+XFLAGS =
+XLIBS  =
+
+DESTDIR   =
 PREFIX    = /usr/local
 MANPREFIX = $(PREFIX)/share/man
 
@@ -17,8 +21,8 @@ options:
 	@echo "sxiv build options:"
 	@echo "CC      = $(CC)"
 	@echo "CFLAGS  = $(CFLAGS)"
-	@echo "XFLAGS  = $(XFLAGS)"
 	@echo "LDFLAGS = $(LDFLAGS)"
+	@echo "XFLAGS  = $(XFLAGS)"
 	@echo "XLIBS   = $(XLIBS)"
 	@echo "PREFIX  = $(PREFIX)"
 

README.md

@@ -74,16 +74,11 @@ enable the corresponding feature:
     files according to their EXIF tag |          |                |
 
 For instance, to enable GIF and EXIF support, the giflib and libexif libraries
-need to be installed on your system and you either need to change the first
+need to be installed on your system and you need to change the first build
-build command to:
+command to:
 
     $ make XFLAGS="-DGIF_SUPPORT -DEXIF_SUPPORT" XLIBS="-lgif -lexif"
 
-Or you need to run the following commands before building sxiv:
-
-    $ export XFLAGS="-DGIF_SUPPORT -DEXIF_SUPPORT"
-    $ export XLIBS="-lgif -lexif"
-
 Usage
 =====
 sxiv has two modes of operation: image and thumbnail mode. The default is