Different approach to exclude libgit2 for pymod

setup.py

@@ -423,7 +423,6 @@ class Config(object):
             ("HAVE_CURL", 1),
             ("HAVE_EXPAT", 1),
             ("HAVE_PNG", 1),
-            ("HAVE_GIT2", 0),
             ("KLAYOUT_MAJOR_VERSION", self.major_version()),
             ("KLAYOUT_MINOR_VERSION", self.minor_version()),
             ("GSI_ALIAS_INSPECT", 1),

src/tl/tl/tlGit.cc

@@ -20,6 +20,7 @@
 
 */
 
+#if defined(HAVE_GIT2)
 
 #include "tlGit.h"
 #include "tlFileUtils.h"
@@ -396,3 +397,5 @@ GitObject::download_item (const std::string &url, const std::string &file, const
 }
 
 }
+
+#endif