# DP: Simplify Ada driver check (we always build using the required
# DP: Ada version. Needed for warnings on alpha.

Index: b/src/config/acx.m4
===================================================================
--- a/src/config/acx.m4
+++ b/src/config/acx.m4
@@ -381,7 +381,7 @@
 # Other compilers, like HP Tru64 UNIX cc, exit successfully when
 # given a .adb file, but produce no object file.  So we must check
 # if an object file was really produced to guard against this.
-errors=`(${CC} $1[]m4_ifval([$1], [ ])-c conftest.adb) 2>&1 || echo failure`
+errors=`(${CC} $1[]m4_ifval([$1], [ ])-c conftest.adb) 2>/dev/null || echo failure`
 if test x"$errors" = x && test -f conftest.$ac_objext; then
   acx_cv_cc_gcc_supports_ada=yes
 fi
Index: b/src/configure
===================================================================
--- a/src/configure
+++ b/src/configure
@@ -5207,7 +5207,7 @@
 # Other compilers, like HP Tru64 UNIX cc, exit successfully when
 # given a .adb file, but produce no object file.  So we must check
 # if an object file was really produced to guard against this.
-errors=`(${CC} -c conftest.adb) 2>&1 || echo failure`
+errors=`(${CC} -c conftest.adb) 2>/dev/null || echo failure`
 if test x"$errors" = x && test -f conftest.$ac_objext; then
   acx_cv_cc_gcc_supports_ada=yes
 fi