Kill warnings in Armadillo detection code to make compiler output empty
---- gdal-1.11.0/configure.in.orig 2014-06-14 15:45:50.005039893 +0200
-+++ gdal-1.11.0/configure.in 2014-06-14 16:46:47.261630331 +0200
+--- gdal-1.11.0/configure.ac.orig 2014-06-14 15:45:50.005039893 +0200
++++ gdal-1.11.0/configure.ac 2014-06-14 16:46:47.261630331 +0200
@@ -4227,7 +4227,7 @@
rm -f testarmadillo.*
rm -f testarmadillo
echo '#include <armadillo>' > testarmadillo.cpp
- echo 'int main(int argc, char** argv) { arma::mat matInput(2,2); const arma::mat& matInv = arma::inv(matInput); return 0; } ' >> testarmadillo.cpp
-- if test -z "`${CXX} ${CPPFLAGS} testarmadillo.cpp -o testarmadillo -larmadillo ${LIBS} 2>&1`" ; then
+ echo 'int main(int, char**) { arma::mat matInput(2,2); const arma::mat& matInv = arma::inv(matInput); (void)matInv; return 0; } ' >> testarmadillo.cpp
-+ if test -z "`${CXX} ${CPPFLAGS} testarmadillo.cpp -o testarmadillo -larmadillo 2>&1`" ; then
+ if test -z "`${CXX} ${CPPFLAGS} testarmadillo.cpp -o testarmadillo -larmadillo 2>&1`" ; then
HAVE_ARMADILLO=yes
LIBS="-larmadillo ${LIBS}"