xlc -qversion outputs to stdout; redirect stdout and stderr to a file…

… to silence error when MPICC is not XL based
Parallel-NetCDF · Dec 4, 2018 · 9b992b8 · 9b992b8
1 parent 13510f0
commit 9b992b8
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/acinclude.m4 b/acinclude.m4
@@ -1580,11 +1580,12 @@ dnl
 AC_DEFUN([UD_CHECK_XLC],[
     AC_CACHE_CHECK([if C compiler is IBM XLC], [ac_cv_cc_compiler_xlc],
     [ac_cv_cc_compiler_xlc=no
-     ac_XLC_VER=`$MPICC -qversion`
-     ac_XLC_VENDOR=`echo $ac_XLC_VER | cut -d' ' -f1,2`
+     ac_XLC_VER=`$MPICC -qversion >& conftest.ver`
+     ac_XLC_VENDOR=`head -c 6 conftest.ver`
      if test "x${ac_XLC_VENDOR}" = "xIBM XL" ; then
         ac_cv_cc_compiler_xlc=yes
      fi
+     ${RM} -f conftest.ver
      unset ac_XLC_VER
      unset ac_XLC_VENDOR
     ])