config-ml.in: On mips*-*-*...

        * config-ml.in: On mips*-*-*, if multidirs contains mabi=64, try to
        link a trivial program with -mabi=64.  If it fails, remove mabi=64
        from multidirs.

From-SVN: r26355

1 files changed, 22 insertions, 0 deletions

diff --git a/config-ml.in b/config-ml.in
index 3a159cf31d4..ed8b1edfaf4 100644
--- a/config-ml.in
+++ b/config-ml.in
@@ -299,6 +299,28 @@ mips*-*-*)
 	    esac
 	  done
 	fi
+	case " $multidirs " in
+	*" mabi=64 "*)
+	  # We will not be able to create libraries with -mabi=64 if
+	  # we cannot even link a trivial program.  It usually
+	  # indicates the 64bit libraries are missing.
+	  if echo 'main() {}' > conftest.c &&
+	     ${CC-gcc} -mabi=64 conftest.c -o conftest; then
+	    :
+	  else
+	    echo Could not link program with -mabi=64, disabling it.
+	    old_multidirs="${multidirs}"
+	    multidirs=""
+	    for x in ${old_multidirs}; do
+	      case "$x" in
+	      *mabi=64* ) : ;;
+	      *) multidirs="${multidirs} ${x}" ;;
+	      esac
+	    done
+	  fi
+	  rm -f conftest.c conftest
+	  ;;
+	esac
 	;;
 powerpc*-*-* | rs6000*-*-*)
 	if [ x$enable_softfloat = xno ]