Include $cc_string in the info reported by a configure run.

Without this, it's not very easy to tell which compiler version a buildfarm
animal is actually using at the moment.

configure

@@ -29700,16 +29700,6 @@ fi
 
 fi
 
-
-# Begin output steps
-
-{ $as_echo "$as_me:$LINENO: using CFLAGS=$CFLAGS" >&5
-$as_echo "$as_me: using CFLAGS=$CFLAGS" >&6;}
-{ $as_echo "$as_me:$LINENO: using CPPFLAGS=$CPPFLAGS" >&5
-$as_echo "$as_me: using CPPFLAGS=$CPPFLAGS" >&6;}
-{ $as_echo "$as_me:$LINENO: using LDFLAGS=$LDFLAGS" >&5
-$as_echo "$as_me: using LDFLAGS=$LDFLAGS" >&6;}
-
 # Create compiler version string
 if test x"$GCC" = x"yes" ; then
   cc_string=`${CC} --version | sed q`
@@ -29738,6 +29728,17 @@ _ACEOF
 
 
 
+# Begin output steps
+
+{ $as_echo "$as_me:$LINENO: using compiler=$cc_string" >&5
+$as_echo "$as_me: using compiler=$cc_string" >&6;}
+{ $as_echo "$as_me:$LINENO: using CFLAGS=$CFLAGS" >&5
+$as_echo "$as_me: using CFLAGS=$CFLAGS" >&6;}
+{ $as_echo "$as_me:$LINENO: using CPPFLAGS=$CPPFLAGS" >&5
+$as_echo "$as_me: using CPPFLAGS=$CPPFLAGS" >&6;}
+{ $as_echo "$as_me:$LINENO: using LDFLAGS=$LDFLAGS" >&5
+$as_echo "$as_me: using LDFLAGS=$LDFLAGS" >&6;}
+
 # prepare build tree if outside source tree
 # Note 1: test -ef might not exist, but it's more reliable than `pwd`.
 # Note 2: /bin/pwd might be better than shell's built-in at getting

configure.in

@@ -1860,13 +1860,6 @@ else
   PGAC_PROG_CC_LDFLAGS_OPT([-Wl,--as-needed], $link_test_func)
 fi
 
-
-# Begin output steps
-
-AC_MSG_NOTICE([using CFLAGS=$CFLAGS])
-AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS])
-AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS])
-
 # Create compiler version string
 if test x"$GCC" = x"yes" ; then
   cc_string=`${CC} --version | sed q`
@@ -1889,6 +1882,13 @@ $AWK '{printf "%d%02d%02d", $1, $2, (NF >= 3) ? $3 : 0}'`"]
 AC_DEFINE_UNQUOTED(PG_VERSION_NUM, $PG_VERSION_NUM, [PostgreSQL version as a number])
 
 
+# Begin output steps
+
+AC_MSG_NOTICE([using compiler=$cc_string])
+AC_MSG_NOTICE([using CFLAGS=$CFLAGS])
+AC_MSG_NOTICE([using CPPFLAGS=$CPPFLAGS])
+AC_MSG_NOTICE([using LDFLAGS=$LDFLAGS])
+
 # prepare build tree if outside source tree
 # Note 1: test -ef might not exist, but it's more reliable than `pwd`.
 # Note 2: /bin/pwd might be better than shell's built-in at getting