Hack to make pari compile again on 5.3 prior to release

Reviewed by:	maintainer
Approved by:	portmgr (marcus)

math/pari/Makefile

@@ -38,7 +38,7 @@ PLIST=		${PKGDIR}/pkg-plist.emacs
 .include <bsd.port.pre.mk>
 
 .if ${OSVERSION} >= 502126
-BROKEN=		"Does not compile on FreeBSD >= 5.x"
+EXTRA_PATCHES=	${FILESDIR}/hack-src:headers::paricom.h
 .endif
 
 .if ${ARCH} == "amd64"

math/pari/files/hack-src:headers::paricom.h

@@ -0,0 +1,20 @@
+--- src/headers/paricom.h.orig	Fri Nov  3 13:00:24 2000
++++ src/headers/paricom.h	Wed Sep 29 20:22:41 2004
+@@ -86,3 +86,2 @@
+ 
+-#ifdef NOEXP2
+ #  ifdef __cplusplus
+@@ -92,12 +91,4 @@
+ #    define exp2(x) (exp((double)(x)*LOG2))
+-#    ifndef __CYGWIN32__
+-#      define log2(x) (log((double)(x))/LOG2)
+-#    endif
++#    define log2(x) (log((double)(x))/LOG2)
+ #  endif
+-#else
+-  BEGINEXTERN
+-    double exp2(double);
+-    double log2(double);
+-  ENDEXTERN
+-#endif
+