Porting fix that allows others to include compiled code with different parsers.

Makes you wonder what I am up to, doesn't?


configure.in:
  Adjusts bison to not create symbols that clash.
sql/sql_analyse.cc:
  Adding define to make sure sql_yacc.h gets included.
sql/sql_lex.cc:
  Fixing it so that sql_yacc.h is included
sql/sql_lex.h:
  Fixing include rules
sql/sql_parse.cc:
  Adding flag to compile sql_yacc.yy

configure.in

@@ -236,7 +236,7 @@ AC_PROG_INSTALL
 test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'
 
 # Not critical since the generated file is distributed
-AC_PROG_YACC
+AC_CHECK_PROGS(YACC, ['bison -y -p MYSQL'])
 AC_CHECK_PROG(PDFMANUAL, pdftex, manual.pdf)
 AC_CHECK_PROG(DVIS,      tex,    manual.dvi)
 

sql/sql_analyse.cc

@@ -27,6 +27,8 @@
 #pragma implementation				// gcc: Class implementation
 #endif
 
+#define MYSQL_LEX 1
+
 #include "mysql_priv.h"
 #include "procedure.h"
 #include "sql_analyse.h"

sql/sql_lex.cc

@@ -17,6 +17,7 @@
 
 /* A lexical scanner on a temporary buffer with a yacc interface */
 
+#define MYSQL_LEX 1
 #include "mysql_priv.h"
 #include "item_create.h"
 #include <m_ctype.h>

sql/sql_lex.h

@@ -37,8 +37,12 @@ class sp_pcontext;
 #define LEX_YYSTYPE void *
 #else
 #include "lex_symbol.h"
+#if MYSQL_LEX
 #include "sql_yacc.h"
 #define LEX_YYSTYPE YYSTYPE *
+#else
+#define LEX_YYSTYPE void *
+#endif
 #endif
 
 /*

sql/sql_parse.cc

@@ -14,6 +14,7 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
+#define MYSQL_LEX 1
 #include "mysql_priv.h"
 #include "sql_repl.h"
 #include "repl_failsafe.h"