1 files changed, 123 insertions, 0 deletions
diff --git a/t/lex-line.sh b/t/lex-line.sh
new file mode 100755
index 000000000..05b6f9999
--- /dev/null
+++ b/t/lex-line.sh
@@ -0,0 +1,123 @@
+#! /bin/sh
+# Copyright (C) 2011-2012 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/>.
+
+# Check that automake lex support ensures that lex-generated C
+# files use correct "#line" directives.  Try also with the
+# 'subdir-object' option enabled.
+# See also sister test 'yacc-line.test'.
+
+required=lex
+. ./defs || Exit 1
+
+cat >> configure.ac << 'END'
+AC_CONFIG_FILES([sub/Makefile])
+AC_PROG_CC
+AM_PROG_CC_C_O
+AC_PROG_LEX
+AC_OUTPUT
+END
+
+mkdir dir sub sub/dir
+
+cat > Makefile.am << 'END'
+SUBDIRS = sub
+bin_PROGRAMS = foo bar
+LDADD = $(LEXLIB)
+bar_LFLAGS = -v
+foo_SOURCES = zardoz.l
+bar_SOURCES = dir/quux.l
+## Avoid spurious failures with Solaris make.
+zardoz.@OBJEXT@: zardoz.c
+bar-quux.@OBJEXT@: bar-quux.c
+END
+
+cat > sub/Makefile.am << 'END'
+AUTOMAKE_OPTIONS = subdir-objects
+noinst_PROGRAMS = foo bar
+## We already used $(LEXLIB) above, so try @LEXLIB@ now.
+LDADD = @LEXLIB@
+foo_LFLAGS = -v
+foo_SOURCES = zardoz.l
+bar_SOURCES = dir/quux.l
+## Avoid spurious failures with Solaris make.
+foo-zardoz.@OBJEXT@: foo-zardoz.c
+dir/quux.@OBJEXT@: dir/quux.c
+END
+
+cat > zardoz.l << 'END'
+%{
+#define YY_NO_UNISTD_H 1
+%}
+%%
+"END"  return EOF;
+.
+%%
+int main ()
+{
+  while (yylex () != EOF)
+    ;
+  return 0;
+}
+
+/* Avoid possible link errors. */
+int yywrap (void)
+{
+  return 1;
+}
+END
+
+cp zardoz.l dir/quux.l
+cp zardoz.l sub/zardoz.l
+cp zardoz.l sub/dir/quux.l
+
+c_outputs='zardoz.c bar-quux.c sub/foo-zardoz.c sub/dir/quux.c'
+
+$ACLOCAL
+$AUTOCONF
+$AUTOMAKE -a
+
+for vpath in : false; do
+
+  if $vpath; then
+    srcdir=..
+    mkdir build
+    cd build
+  else
+    srcdir=.
+  fi
+
+  $srcdir/configure
+  $MAKE
+
+  # For debugging,
+  ls -l . sub sub/dir
+  $FGREP '.l' $c_outputs
+
+  # Adjusted "#line" should not contain reference to the builddir.
+  $EGREP '#.*line.*(build|\.\.).*\.l' $c_outputs && Exit 1
+  # Adjusted "#line" should not contain reference to the default
+  # output file names, e.g., 'lex.yy.c'.
+  $EGREP '#.*line.*lex\.yy' $c_outputs && Exit 1
+  # Don't be excessively strict in grepping, to avoid spurious failures.
+  grep '#.*line.*zardoz\.l' zardoz.c
+  grep '#.*line.*quux\.l' bar-quux.c
+  grep '#.*line.*zardoz\.l' sub/foo-zardoz.c
+  grep '#.*line.*quux\.l' sub/dir/quux.c
+  cd $srcdir
+
+done
+
+: