pthreads: fix build when DNS resolver is not enabled.

Resolver state is only available if DNS resolver is enabled.

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>

libpthread/linuxthreads/manager.c

@@ -293,7 +293,7 @@ pthread_start_thread(void *arg)
   /* Initialize thread-locale current locale to point to the global one.
      With __thread support, the variable's initializer takes care of this.  */
   __uselocale (LC_GLOBAL_LOCALE);
-#else
+#elif defined __UCLIBC_HAS_RESOLVER_SUPPORT__
   /* Initialize __resp.  */
   __resp = &self->p_res;
 #endif

libpthread/linuxthreads/pthread.c

@@ -45,7 +45,7 @@ extern __typeof(sigaction) __libc_sigaction;
 extern int _errno;
 extern int _h_errno;
 
-# if defined __UCLIBC_HAS_IPV4__ || defined __UCLIBC_HAS_IPV6__
+# if defined __UCLIBC_HAS_RESOLVER_SUPPORT__
 /* We need the global/static resolver state here.  */
 # include <resolv.h>
 # undef _res
@@ -539,14 +539,14 @@ static void pthread_initialize(void)
 #ifdef USE_TLS
   /* Update the descriptor for the initial thread. */
   THREAD_SETMEM (((pthread_descr) NULL), p_pid, __getpid());
-# if !defined HAVE___THREAD && (defined __UCLIBC_HAS_IPV4__ || defined __UCLIBC_HAS_IPV6__)
+# if !defined HAVE___THREAD && defined __UCLIBC_HAS_RESOLVER_SUPPORT__
   /* Likewise for the resolver state _res.  */
   THREAD_SETMEM (((pthread_descr) NULL), p_resp, __resp);
 # endif
 #else
   /* Update the descriptor for the initial thread. */
   __pthread_initial_thread.p_pid = __getpid();
-# if defined __UCLIBC_HAS_IPV4__ || defined __UCLIBC_HAS_IPV6__
+# if defined __UCLIBC_HAS_RESOLVER_SUPPORT__
   /* Likewise for the resolver state _res.  */
   __pthread_initial_thread.p_resp = __resp;
 # endif
@@ -1125,7 +1125,7 @@ void __pthread_reset_main_thread(void)
   /* Now this thread modifies the global variables.  */
   THREAD_SETMEM(self, p_errnop, &_errno);
   THREAD_SETMEM(self, p_h_errnop, &_h_errno);
-# if defined __UCLIBC_HAS_IPV4__ || defined __UCLIBC_HAS_IPV6__
+# if defined __UCLIBC_HAS_RESOLVER_SUPPORT__
   THREAD_SETMEM(self, p_resp, __resp);
 # endif
 #endif

libpthread/nptl/Makefile.in

@@ -19,7 +19,7 @@ libpthread-static-only-routines-y = pthread_atfork.c
 libpthread-routines- += $(notdir $(wildcard $(libpthread_DIR)/gen_*.c)) # dummy generated files
 libpthread-routines- += allocatestack.c # dummy included by pthread_create.c
 libpthread-routines- += pthread_mutex_getprioceiling.c pthread_mutex_setprioceiling.c # XXX: delete those or use them!
-libpthread-routines-$(findstring y,$(UCLIBC_HAS_IPV4)$(UCLIBC_HAS_IPV6)) += res.c
+libpthread-routines-$(UCLIBC_HAS_RESOLVER_SUPPORT) += res.c
 libpthread-routines-$(UCLIBC_SUSV4_LEGACY) += pthread_getconcurrency.c \
 	pthread_setconcurrency
 libpthread_CSRC = $(filter-out $(libpthread-routines-) \

libpthread/nptl/pthread_create.c

@@ -233,7 +233,7 @@ start_thread (void *arg)
   HP_TIMING_NOW (now);
   THREAD_SETMEM (pd, cpuclock_offset, now);
 #endif
-#if defined __UCLIBC_HAS_IPV4__ || defined __UCLIBC_HAS_IPV6__
+#if defined __UCLIBC_HAS_RESOLVER_SUPPORT__
   /* Initialize resolver state pointer.  */
   __resp = &pd->res;
 #endif