4 files changed, 24 insertions, 8 deletions
diff --git a/nptl/Makefile b/nptl/Makefile
index 5ce295c96f..37a762d530 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -113,6 +113,7 @@ routines = \
   pthread_exit \
   pthread_getaffinity \
   pthread_getattr_np \
+  pthread_getconcurrency \
   pthread_getschedparam \
   pthread_getspecific \
   pthread_join \
@@ -167,6 +168,7 @@ routines = \
   pthread_setattr_default_np \
   pthread_setcancelstate \
   pthread_setcanceltype \
+  pthread_setconcurrency \
   pthread_setschedparam \
   pthread_setspecific \
   pthread_sigmask \
@@ -204,11 +206,9 @@ libpthread-routines = \
   pt-interp \
   pthread_create \
   pthread_getattr_default_np \
-  pthread_getconcurrency \
   pthread_getcpuclockid \
   pthread_getname \
   pthread_setaffinity \
-  pthread_setconcurrency \
   pthread_setname \
   pthread_setschedprio \
   pthread_sigqueue \
diff --git a/nptl/Versions b/nptl/Versions
index 776abde320..1dd3fbc18c 100644
--- a/nptl/Versions
+++ b/nptl/Versions
@@ -80,6 +80,7 @@ libc {
     pthread_attr_setguardsize;
     pthread_attr_setstackaddr;
     pthread_attr_setstacksize;
+    pthread_getconcurrency;
     pthread_mutexattr_gettype;
     pthread_mutexattr_settype;
     pthread_rwlock_destroy;
@@ -95,6 +96,7 @@ libc {
     pthread_rwlockattr_init;
     pthread_rwlockattr_setkind_np;
     pthread_rwlockattr_setpshared;
+    pthread_setconcurrency;
     sem_destroy;
     sem_getvalue;
     sem_init;
@@ -280,6 +282,7 @@ libc {
     pthread_condattr_setclock;
     pthread_condattr_setpshared;
     pthread_detach;
+    pthread_getconcurrency;
     pthread_getspecific;
     pthread_join;
     pthread_key_create;
@@ -318,6 +321,7 @@ libc {
     pthread_rwlockattr_setkind_np;
     pthread_rwlockattr_setpshared;
     pthread_setattr_default_np;
+    pthread_setconcurrency;
     pthread_setspecific;
     pthread_spin_destroy;
     pthread_spin_init;
@@ -414,8 +418,6 @@ libpthread {
 
   GLIBC_2.1 {
     pthread_create;
-    pthread_getconcurrency;
-    pthread_setconcurrency;
   }
 
   GLIBC_2.1.1 {
diff --git a/nptl/pthread_getconcurrency.c b/nptl/pthread_getconcurrency.c
index 2ff9afa51b..387f7ffa39 100644
--- a/nptl/pthread_getconcurrency.c
+++ b/nptl/pthread_getconcurrency.c
@@ -17,10 +17,17 @@
    <https://www.gnu.org/licenses/>.  */
 
 #include "pthreadP.h"
-
+#include <shlib-compat.h>
 
 int
-pthread_getconcurrency (void)
+__pthread_getconcurrency (void)
 {
   return __concurrency_level;
 }
+versioned_symbol (libc, __pthread_getconcurrency, pthread_getconcurrency,
+                  GLIBC_2_34);
+
+#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_1, GLIBC_2_34)
+compat_symbol (libpthread, __pthread_getconcurrency, pthread_getconcurrency,
+               GLIBC_2_1);
+#endif
diff --git a/nptl/pthread_setconcurrency.c b/nptl/pthread_setconcurrency.c
index e58a1446f4..5bc93ddaef 100644
--- a/nptl/pthread_setconcurrency.c
+++ b/nptl/pthread_setconcurrency.c
@@ -18,14 +18,14 @@
 
 #include <errno.h>
 #include "pthreadP.h"
-
+#include <shlib-compat.h>
 
 /* Global definition.  Needed in pthread_getconcurrency as well.  */
 int __concurrency_level;
 
 
 int
-pthread_setconcurrency (int level)
+__pthread_setconcurrency (int level)
 {
   if (level < 0)
     return EINVAL;
@@ -37,3 +37,10 @@ pthread_setconcurrency (int level)
 
   return 0;
 }
+versioned_symbol (libc, __pthread_setconcurrency, pthread_setconcurrency,
+                  GLIBC_2_34);
+
+#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_1, GLIBC_2_34)
+compat_symbol (libpthread, __pthread_setconcurrency, pthread_setconcurrency,
+               GLIBC_2_1);
+#endif