1 files changed, 93 insertions, 0 deletions
diff --git a/t/mmodely.sh b/t/mmodely.sh
new file mode 100755
index 000000000..6c6191520
--- /dev/null
+++ b/t/mmodely.sh
@@ -0,0 +1,93 @@
+#! /bin/sh
+# Copyright (C) 2004-2012 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Verify that intermediate files are only built from Yacc and Lex
+# sources in maintainer mode.
+# From Derek R. Price.
+
+required=cc
+. ./defs || Exit 1
+
+cat >> configure.ac << 'END'
+AM_MAINTAINER_MODE
+AC_PROG_CC
+AM_PROG_LEX
+AC_PROG_YACC
+AC_OUTPUT
+END
+
+cat > Makefile.am <<'END'
+YACC = false
+LEX = false
+bin_PROGRAMS = zardoz
+zardoz_SOURCES = zardoz.y joe.l
+LDADD = @LEXLIB@
+END
+
+# The point of this test is that it is not dependent on a working lex
+# or yacc.
+cat > joe.c <<EOF
+int joe (int arg)
+{
+    return arg * 2;
+}
+EOF
+# On systems which link in libraries non-lazily and whose linkers
+# complain about unresolved symbols by default, such as Solaris, an
+# yylex function needs to be defined to avoid an error due to an
+# unresolved symbol.
+cat > zardoz.c <<EOF
+int joe (int arg);
+int yylex (void)
+{
+    return 0;
+}
+int main (int argc, char **argv)
+{
+    return joe (argc);
+}
+EOF
+
+# Ensure a later timestamp for our Lex & Yacc sources.
+$sleep
+: > joe.l
+: > zardoz.y
+
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE -a
+
+./configure
+$MAKE
+
+cat >myyacc.sh <<'END'
+#! /bin/sh
+echo "$@" >y.tab.c
+END
+cat >mylex.sh <<'END'
+echo "$@" >lex.yy.c
+END
+chmod +x myyacc.sh mylex.sh
+PATH="`pwd`$PATH_SEPARATOR$PATH"
+
+# "make maintainer-clean; ./configure; make" should always work,
+# per GNU Standard.
+$MAKE maintainer-clean
+./configure
+YACC="myyacc.sh" LEX="mylex.sh" \
+   LEX_OUTPUT_ROOT='lex.yy' $MAKE -e zardoz.c joe.c
+grep zardoz.y zardoz.c
+grep joe.l joe.c