plperlng - plperlng: modern ppport.h to support older perl versions fix

Log Message:
-----------

modern ppport.h to support older perl versions
fix for makefile test
latest version of internal stuff to work correctly for select queries

Modified Files:
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plperlng:
GNUmakefile (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plperlng/plperlng/GNUmakefile.diff?r1=1.4&r2=1.5)
SPI.xs (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plperlng/plperlng/SPI.xs.diff?r1=1.2&r2=1.3)
plperl.c (r1.11 -> r1.12)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plperlng/plperlng/plperl.c.diff?r1=1.11&r2=1.12)
ppport.h (r1.1.1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plperlng/plperlng/ppport.h.diff?r1=1.1.1.1&r2=1.2)
spi_internal.c (r1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plperlng/plperlng/spi_internal.c.diff?r1=1.1&r2=1.2)
spi_internal.h (r1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/plperlng/plperlng/spi_internal.h.diff?r1=1.1&r2=1.2)