diff --git a/Lib/swiglabels.swg b/Lib/swiglabels.swg
index 66e208ed8..c6018c8d2 100644
--- a/Lib/swiglabels.swg
+++ b/Lib/swiglabels.swg
@@ -7,15 +7,15 @@
 
 /* template workaround for compilers that cannot correctly implement the C++ standard */
 #ifndef SWIGTEMPLATEDISAMBIGUATOR
-#  if defined(__SUNPRO_CC)
-#    if (__SUNPRO_CC <= 0x560)
-#      define SWIGTEMPLATEDISAMBIGUATOR template
-#    else
-#      define SWIGTEMPLATEDISAMBIGUATOR 
-#    endif
-#  else
-#    define SWIGTEMPLATEDISAMBIGUATOR 
-#  endif
+# if defined(__SUNPRO_CC)
+#   if (__SUNPRO_CC <= 0x560)
+#     define SWIGTEMPLATEDISAMBIGUATOR template
+#   else
+#     define SWIGTEMPLATEDISAMBIGUATOR 
+#   endif
+# else
+#   define SWIGTEMPLATEDISAMBIGUATOR 
+# endif
 #endif
 
 /* inline attribute */
@@ -30,12 +30,11 @@
 /* attribute recognised by some compilers to avoid 'unused' warnings */
 #ifndef SWIGUNUSED
 # if defined(__GNUC__)
-/* Old G++ versions has problems with this attribute, but not GCC */
-#  if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
-#    define SWIGUNUSED __attribute__ ((__unused__)) 
-#  else
-#    define SWIGUNUSED
-#  endif
+#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+#     define SWIGUNUSED __attribute__ ((__unused__)) 
+#   else
+#     define SWIGUNUSED
+#   endif
 # elif defined(__ICC)
 #   define SWIGUNUSED __attribute__ ((__unused__)) 
 # else