Defined locations of parser files in config.h instead of Makefile.

Makefile.am

@@ -1,12 +1,5 @@
 ## Process this file with automake to produce Makefile.in -*-Makefile-*-
-AUTOMAKE_OPTIONS = 1.3
+AUTOMAKE_OPTIONS = 1.4
-
-#names of parser files
-PFILE = bison.simple
-PFILE1 = bison.hairy
-
-INCLUDES = -DXPFILE=\"$(datadir)/$(PFILE)\" \
-           -DXPFILE1=\"$(datadir)/$(PFILE1)\"
 
 bin_PROGRAMS = bison
 
@@ -22,7 +15,7 @@ bison_LDADD = @ALLOCA@
 noinst_HEADERS = alloc.h files.h gram.h lex.h machine.h state.h	\
  symtab.h system.h types.h getopt.h
 
-data_DATA = $(PFILE) $(PFILE1)
+data_DATA = bison.simple bison.hairy
 info_TEXINFOS = bison.texinfo
 man_MANS = bison.1
 

acconfig.h

@@ -10,6 +10,12 @@
 
 /* Define if the compiler understands prototypes.  */
 #undef PROTOTYPES
+
+/* The location of the simple parser (bison.simple).  */
+#undef XPFILE
+
+/* The location of the semantic parser (bison.hairy).  */
+#undef XPFILE1
 @BOTTOM@
 
 #if defined(PROTOTYPES) || defined(__cplusplus)

acinclude.m4

@@ -0,0 +1,13 @@
+dnl BISON_DEFINE_FILE(VARNAME, FILE)
+dnl Defines (with AC_DEFINE) VARNAME to the expansion of the FILE
+dnl variable, expanding ${prefix} and such.
+dnl Example: BISON_DEFINE_FILE(DATADIR, datadir)
+dnl By Alexandre Oliva <oliva@dcc.unicamp.br>
+AC_DEFUN(BISON_DEFINE_FILE, [
+        ac_expanded=`(
+            test "x$prefix" = xNONE && prefix="$ac_default_prefix"
+            test "x$exec_prefix" = xNONE && exec_prefix="${prefix}"
+            eval echo \""[$]$2"\"
+        )`
+        AC_DEFINE_UNQUOTED($1, "$ac_expanded")
+])

configure.in

@@ -30,4 +30,9 @@ dnl Checks for library functions.
 AC_FUNC_ALLOCA
 AC_CHECK_FUNCS(mkstemp setlocale)
 
+PFILE="${datadir}/bison.simple"
+BISON_DEFINE_FILE(XPFILE, PFILE)
+PFILE1="${datadir}/bison.hairy"
+BISON_DEFINE_FILE(XPFILE1, PFILE1)
+
 AC_OUTPUT(Makefile)

src/files.c

@@ -19,6 +19,8 @@ the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
 
+#include "system.h"
+
 #if defined (VMS) & !defined (__VMS_POSIX)
 #include <ssdef.h>
 #define unlink delete
@@ -40,7 +42,6 @@ Boston, MA 02111-1307, USA.  */
 #endif
 
 #include <stdio.h>
-#include "system.h"
 #include "files.h"
 #include "alloc.h"
 #include "gram.h"

src/files.h

@@ -21,7 +21,7 @@ Boston, MA 02111-1307, USA.  */
 
 /* These two should be pathnames for opening the sample parser files.
    When bison is installed, they should be absolute pathnames.
-   XPFILE1 and XPFILE2 normally come from the Makefile.  */
+   XPFILE1 and XPFILE2 normally come from config.h.  */
 
 #define PFILE	XPFILE		/* Simple parser */
 #define PFILE1	XPFILE1		/* Semantic parser */