# Executing Actions. -*- Autotest -*-
-# Copyright (C) 2002, 2004-2005, 2007, 2009-2012 Free Software
+# Copyright (C) 2002, 2004-2005, 2007, 2009-2015 Free Software
# Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# --------------------------
# Compile FILE expecting an error, and save in the file stdout the
# normalized output. Ignore the exit status, since some compilers
-# (e.g. c89 on IRIX 6.5) trigger warnings on `#error', instead of
+# (e.g. c89 on IRIX 6.5) trigger warnings on '#error', instead of
# errors.
m4_define([AT_SYNCLINES_COMPILE],
[AT_CHECK([$CC $CFLAGS $CPPFLAGS -c $1], [ignore], [], [stderr])
# #error "1"
# ^
#
-# And possibly distcc adds its bits.
+# Possibly distcc adds its bits.
#
# distcc[33187] ERROR: compile (null) on localhost failed
# syncline.c:1:2: error: #error "1"
# #error "1"
# ^
# 1 error generated.
+#
+# When c++ is used to compiler C, we might have more messages (Clang 3.2):
+#
+# clang: warning: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated
+
AT_CHECK([[$PERL -p -0777 - stderr <<\EOF
# 1. Remove useless lines.
# distcc clutter.
s/^distcc\[\d+\] .*\n//gm;
+ # c vs. c++.
+ s/^clang: warning: treating 'c' input as 'c\+\+'.*\n//gm;
# Function context.
s/^[^:]*: In function '[^']+':\n//gm;
# Caret error.
AT_DATA([syncline.c],
[[#error "1"
-int i; // avoids -pedantic warning about an empty translation unit
+int i; /* avoids -pedantic warning about an empty translation unit. */
]])
AT_SYNCLINES_COMPILE([syncline.c])
])
+## ---------------------- ##
+## %union name syncline. ##
+## ---------------------- ##
+
+# Check that invalid union names are properly reported in the
+# source file.
+AT_SETUP([%union name syncline])
+AT_BISON_OPTION_PUSHDEFS
+AT_DATA([[input.y]],
+[[%union break
+{
+ char dummy;
+}
+%{
+]AT_YYERROR_DECLARE_EXTERN[
+]AT_YYLEX_DECLARE_EXTERN[
+%}
+%%
+exp: '0';
+%%
+]])
+
+AT_BISON_CHECK([-o input.c input.y])
+AT_SYNCLINES_COMPILE([input.c])
+AT_CHECK([[grep '^input.y:1' stdout]], 0, [ignore])
+AT_BISON_OPTION_POPDEFS
+AT_CLEANUP
+
+
## ----------------------- ##
## Postprologue syncline. ##
## ----------------------- ##
## ----------- ##
m4_pushdef([AT_TEST],
-[AT_SETUP([%no-lines])
+[AT_SETUP([%no-lines: $1])
AT_BISON_OPTION_PUSHDEFS([%skeleton "$1" %defines])
AT_DATA_GRAMMAR([input.y],