Add glibc build support

* Makeconfig, Versions, configure.in, forward.c, libc_pthread_init.c,
pthread/pthread-functions.h, shlib-versions, sysdeps/i386/Implies,
sysdeps/mach/hurd/Implies, sysdeps/mach/hurd/i386/Implies: New files.
* Makefile: Add glibc rules, enabled when IN_GLIBC is defined to yes, when
$(..) is defined.
* pthread/pt-initialize.c [IS_IN_libpthread] (pthread_functions): New variable.
[IS_IN_libpthread] (__pthread_initialize): Call __libc_pthread_init.

1 files changed, 50 insertions, 0 deletions

diff --git a/pthread/pt-initialize.c b/pthread/pt-initialize.c
index cf32b8b..f0ef8f8 100644
--- a/pthread/pt-initialize.c
+++ b/pthread/pt-initialize.c
@@ -23,11 +23,61 @@
 #include <pt-internal.h>
 #include <set-hooks.h>
 
+#include <pthread.h>
+#include <pthread-functions.h>
+
 DEFINE_HOOK (__pthread_init, (void));
 
+#ifdef IS_IN_libpthread
+#ifdef SHARED
+static const struct pthread_functions pthread_functions =
+  {
+    .ptr_pthread_attr_destroy = __pthread_attr_destroy,
+    .ptr_pthread_attr_init = __pthread_attr_init,
+    .ptr_pthread_attr_getdetachstate = __pthread_attr_getdetachstate,
+    .ptr_pthread_attr_setdetachstate = __pthread_attr_setdetachstate,
+    .ptr_pthread_attr_getinheritsched = __pthread_attr_getinheritsched,
+    .ptr_pthread_attr_setinheritsched = __pthread_attr_setinheritsched,
+    .ptr_pthread_attr_getschedparam = __pthread_attr_getschedparam,
+    .ptr_pthread_attr_setschedparam = __pthread_attr_setschedparam,
+    .ptr_pthread_attr_getschedpolicy = __pthread_attr_getschedpolicy,
+    .ptr_pthread_attr_setschedpolicy = __pthread_attr_setschedpolicy,
+    .ptr_pthread_attr_getscope = __pthread_attr_getscope,
+    .ptr_pthread_attr_setscope = __pthread_attr_setscope,
+    .ptr_pthread_condattr_destroy = __pthread_condattr_destroy,
+    .ptr_pthread_condattr_init = __pthread_condattr_init,
+    .ptr_pthread_cond_broadcast = __pthread_cond_broadcast,
+    .ptr_pthread_cond_destroy = __pthread_cond_destroy,
+    .ptr_pthread_cond_init = __pthread_cond_init,
+    .ptr_pthread_cond_signal = __pthread_cond_signal,
+    .ptr_pthread_cond_wait = __pthread_cond_wait,
+    .ptr_pthread_cond_timedwait = __pthread_cond_timedwait,
+    .ptr_pthread_equal = __pthread_equal,
+    .ptr_pthread_exit = __pthread_exit,
+    .ptr_pthread_getschedparam = __pthread_getschedparam,
+    .ptr_pthread_setschedparam = __pthread_setschedparam,
+    .ptr_pthread_mutex_destroy = _pthread_mutex_destroy,
+    .ptr_pthread_mutex_init = _pthread_mutex_init,
+    .ptr_pthread_mutex_lock = __pthread_mutex_lock,
+    .ptr_pthread_mutex_trylock = __pthread_mutex_trylock,
+    .ptr_pthread_mutex_unlock = __pthread_mutex_unlock,
+    .ptr_pthread_self = __pthread_self,
+    .ptr_pthread_setcancelstate = __pthread_setcancelstate,
+    .ptr_pthread_setcanceltype = __pthread_setcanceltype,
+    .ptr___pthread_get_cleanup_stack = __pthread_get_cleanup_stack,
+  };
+# define ptr_pthread_functions &pthread_functions
+#else
+# define ptr_pthread_functions NULL
+#endif
+#endif /* IS_IN_libpthread */
+
 /* Initialize the pthreads library.  */
 void
 __pthread_initialize (void)
 {
+#ifdef IS_IN_libpthread
+  __libc_pthread_init(ptr_pthread_functions);
+#endif
   RUN_HOOK (__pthread_init, ());
 }