+# This is still experimental (20080329), but should ultimately be moved to
+# the script-block --with-normal, etc.
+
+echo "$as_me:9177: checking if you want to link with the pthread library" >&5
+echo $ECHO_N "checking if you want to link with the pthread library... $ECHO_C" >&6
+
+# Check whether --with-pthread or --without-pthread was given.
+if test "${with_pthread+set}" = set; then
+ withval="$with_pthread"
+ with_pthread=$withval
+else
+ with_pthread=no
+fi;
+echo "$as_me:9187: result: $with_pthread" >&5
+echo "${ECHO_T}$with_pthread" >&6
+
+if test "$with_pthread" != no ; then
+ echo "$as_me:9191: checking for pthread.h" >&5
+echo $ECHO_N "checking for pthread.h... $ECHO_C" >&6
+if test "${ac_cv_header_pthread_h+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+#line 9197 "configure"
+#include "confdefs.h"
+#include <pthread.h>
+_ACEOF
+if { (eval echo "$as_me:9201: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ egrep -v '^ *\+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:9207: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_cv_header_pthread_h=yes
+else
+ echo "$as_me: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ ac_cv_header_pthread_h=no
+fi
+rm -f conftest.err conftest.$ac_ext
+fi
+echo "$as_me:9226: result: $ac_cv_header_pthread_h" >&5
+echo "${ECHO_T}$ac_cv_header_pthread_h" >&6
+if test $ac_cv_header_pthread_h = yes; then
+
+ cat >>confdefs.h <<\EOF
+#define HAVE_PTHREADS_H 1
+EOF
+
+ echo "$as_me:9234: checking for pthread_create in -lpthread" >&5
+echo $ECHO_N "checking for pthread_create in -lpthread... $ECHO_C" >&6
+if test "${ac_cv_lib_pthread_pthread_create+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread $LIBS"
+cat >conftest.$ac_ext <<_ACEOF
+#line 9242 "configure"
+#include "confdefs.h"
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char pthread_create ();
+int
+main ()
+{
+pthread_create ();
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:9261: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:9264: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:9267: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:9270: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_lib_pthread_pthread_create=yes
+else
+ echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_cv_lib_pthread_pthread_create=no
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+echo "$as_me:9281: result: $ac_cv_lib_pthread_pthread_create" >&5
+echo "${ECHO_T}$ac_cv_lib_pthread_pthread_create" >&6
+if test $ac_cv_lib_pthread_pthread_create = yes; then
+
+ LIBS="-lpthread $LIBS"
+ cat >>confdefs.h <<\EOF
+#define HAVE_LIBPTHREADS 1
+EOF
+
+ with_pthread=yes
+
+else
+
+ { { echo "$as_me:9294: error: Cannot link with pthread library" >&5
+echo "$as_me: error: Cannot link with pthread library" >&2;}
+ { (exit 1); exit 1; }; }
+
+fi
+
+fi
+
+fi
+
+if test "$with_pthread" = "yes" ; then
+ cat >>confdefs.h <<\EOF
+#define USE_PTHREADS 1
+EOF
+
+ enable_reentrant=yes
+fi
+