make setup.py respect pkg-config if available

python-libburn/setup.py

@@ -2,14 +2,30 @@
 
 from distutils.core import setup, Extension
 
+import os
+modname='libburn-1'
+
+libs = ['burn']
+includes = ['/usr/include/libburn']
+
+if os.system('pkg-config --exists '+modname+' 2> /dev/null') == 0:
+    pkgcfg = os.popen('pkg-config --cflags-only-I '+modname)
+    includes = pkgcfg.readline().strip()
+    includes = includes[2:].split(' -I')
+    pkgcfg.close()
+
+    pkgcfg = os.popen('pkg-config --libs-only-l '+modname)
+    libs = pkgcfg.readline().strip()
+    libs = libs[2:].split(' -l')
+    pkgcfg.close()
+
 setup(name = "python-libburn",
         version = "0.0.1",
         description = "Python bindings to libburn",
         ext_modules = [Extension("pyburn", 
             ["pyburn.cpp"],
-            libraries=[':libburn.so'],
-            include_dirs=['/usr/include/libburn'],  # FIXME: make this more 
-                                                    # portable
+            libraries=libs,
+            include_dirs=includes,
             )]
         )