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+2013-06-18  Frank Warmerdam  <warmerdam@google.com>
+
+	* src/PJ_healpix.c: rename sign() to pj_sign() and make it static.  No
+	need to risk conflicting with sign() in other packages like gctpc.
+
 2012-12-17  Frank Warmerdam  <warmerdam@pobox.com>
 
 	* src/pj_init.c: Recover gracefully if setlocale() returns NULL