Fixes check.defs test for symbol exports to work on Solaris.

The default nm check doesn't work with Solaris nm, but expects the default

output format from BSD/GNU nm instead. Switching it to use /usr/gnu/bin/nm

still fails, since it finds the unexpected symbols of _PROCEDURE_LINKAGE_TABLE_

and _etext from other sections, so instead we use the Solaris elfdump much as

Linux overrides with objdump.

Need to submit upstream.

--- pango-1.38.0/pango/check.defs Wed Mar 5 20:33:55 2014

+++ pango-1.38.0/pango/check.defs Thu Apr 28 18:32:45 2016

@@ -7,8 +7,11 @@

status=0

get_pango_syms='nm "$so" | grep " T " | cut -d" " -f3'

-if [ "`uname -s`" = "Linux" ]; then

+system="`uname -s`"

+if [ "$system" = "Linux" ]; then

get_pango_syms='objdump -t "$so" | sed -n "/.*g *F *\.\(opd\|text\).* \(.*pango_.*\)$/s//\2/p"'

+elif [ "$system" = "SunOS" ]; then

+ get_pango_syms='elfdump -s "$so" | sed -n "/.* FUNC GLOB .*\.text.* \(.*pango_.*\)$/s//\1/p"'

fi

for def in $srcdir/*.def; do