Change the behavior of --enable-thread-safe-client. It now builds

both a non-threaded libmysqlclient and a threaded libmysqlclient_r.


Makefile.am:
  - build libmysqlclient_r in a separate directory
include/global.h:
  - build libmysqlclient_r in a separate directory
libmysql/Makefile.am:
  - build libmysqlclient_r in a separate directory

libmysql_r/Makefile.am

@@ -0,0 +1,39 @@
+# Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+# 
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Library General Public
+# License as published by the Free Software Foundation; either
+# version 2 of the License, or (at your option) any later version.
+# 
+# This library 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
+# Library General Public License for more details.
+# 
+# You should have received a copy of the GNU Library General Public
+# License along with this library; if not, write to the Free
+# Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+# MA 02111-1307, USA
+
+# This file is public domain and comes with NO WARRANTY of any kind
+
+target = libmysqlclient_r.la
+target_defs =
+## LIBS = @LIBS@
+
+## automake barfs if you don't use $(srcdir) or $(top_srcdir) in include
+include $(top_srcdir)/libmysql/Makefile.shared
+
+libmysql_dir = $(top_srcdir)/libmysql
+
+libmysqlclient_r_la_SOURCES = $(target_sources)
+libmysqlclient_r_la_LIBADD = $(target_libadd)
+libmysqlclient_r_la_LDFLAGS = $(target_ldflags)
+
+# This is called from the toplevel makefile
+link_sources:
+	set -x; \
+	for f in `cd $(libmysql_dir) && echo *.[ch]`; do \
+	  rm -f $(srcdir)/$$f; \
+	  @LN_CP_F@ $(libmysql_dir)/$$f $(srcdir)/$$f; \
+	done