Rescue the build on FreeBSD < 10 with libmissing.

Reported by:	pkg-fallout

math/libproj4/Makefile

@@ -22,13 +22,18 @@ USE_LDCONFIG=	yes
 
 WRKSRC=		${WRKDIR}/${PORTNAME}
 
-.include <bsd.port.options.mk>
+.include <bsd.port.pre.mk>
 
 .if ${PORT_OPTIONS:MDOCS}
 DISTFILES+=	manual.pdf
 EXTRACT_ONLY=	${PORTNAME}.${DISTVERSION}${EXTRACT_SUFX}
 .endif
 
+.if ${OPSYS} == FreeBSD && ${OSVERSION} < 1000034
+LIB_DEPENDS+=	libmissing.so:${PORTSDIR}/math/libmissing
+LDFLAGS+=	-lmissing
+.endif
+
 pre-configure:
 	${REINPLACE_CMD} -e 's|-lpthread|${PTHREAD_LIBS}|' ${WRKSRC}/${MAKEFILE}
 
@@ -38,4 +43,4 @@ post-install:
 	${INSTALL_DATA} ${_DISTDIR}/manual.pdf ${STAGEDIR}${DOCSDIR}
 .endif
 
-.include <bsd.port.mk>
+.include <bsd.port.post.mk>

math/libproj4/files/patch-proj_ftmerc.c

@@ -0,0 +1,13 @@
+--- ./proj_ftmerc.c.orig	2008-11-20 18:40:28.000000000 +0100
++++ ./proj_ftmerc.c	2014-10-16 21:31:30.000000000 +0200
+@@ -31,6 +31,10 @@
+ #define PROJ_LIB__
+ #include	<lib_proj.h>
+ #include <complex.h>
++#include <sys/param.h>
++#if defined(__FreeBSD__) && (__FreeBSD_version < 1000034)
++# include <missing_complex.h>
++#endif
+ PROJ_HEAD(ftmerc, "French Transverse Mercator") "\n\tCyl, Ell";
+ 
+ /* forward series constants */