WL#3432 (Compile the Parser with a --debug --verbose option)

Changed the automake build process :
- ./configure.in
- ./sql/Makefile.am
to compile an instrumented parser for debug=yes or debug=full builds

Changed the (primary) runtime invocation of the parser :
- sql/sql_parse.cc
to generate bison traces in stderr when the DBUG "parser_debug" flag is set.


configure.in:
  WL#3432 (Compile the Parser with a --debug --verbose option)
  
  New Automake condition : MYSQL_CONF_DEBUG
sql/Makefile.am:
  WL#3432 (Compile the Parser with a --debug --verbose option)
  
  In Debug mode, compile sql_yacc.yy with --debug --verbose
sql/sql_parse.cc:
  WL#3432 (Compile the Parser with a --debug --verbose option)
  
  Conditionally turn the bison parser debug on at runtime.

1 files changed, 6 insertions, 1 deletions

diff --git a/sql/Makefile.am b/sql/Makefile.am
index 8428d6401b5..251fbaa1c9a 100644
--- a/sql/Makefile.am
+++ b/sql/Makefile.am
@@ -117,9 +117,14 @@ DEFS =			-DMYSQL_SERVER \
 
 BUILT_SOURCES =		sql_yacc.cc sql_yacc.h lex_hash.h
 EXTRA_DIST =		$(BUILT_SOURCES)
-DISTCLEANFILES =        lex_hash.h
+DISTCLEANFILES =        lex_hash.h sql_yacc.output
+
 AM_YFLAGS =		-d
 
+if MYSQL_CONF_DEBUG
+AM_YFLAGS +=		--debug --verbose
+endif
+
 mysql_tzinfo_to_sql.cc:
 	rm -f mysql_tzinfo_to_sql.cc
 	@LN_CP_F@ $(srcdir)/tztime.cc mysql_tzinfo_to_sql.cc