diff --git a/configure b/configure
index f6a675eadb1..dc02225cdd5 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 76645 .
+# From configure.in Revision: 76779 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for python 3.2.
 #
@@ -23782,6 +23782,7 @@ int main(void) {
     return 1;
   }
   sem_close(a);
+  sem_unlink("/autoconf");
   return 0;
 }
 
@@ -23856,7 +23857,7 @@ cat >>conftest.$ac_ext <<_ACEOF
 #include <sys/stat.h>
 
 int main(void){
-  sem_t *a = sem_open("/autoconf", O_CREAT, S_IRUSR|S_IWUSR, 0);
+  sem_t *a = sem_open("/autocftw", O_CREAT, S_IRUSR|S_IWUSR, 0);
   int count;
   int res;
   if(a==SEM_FAILED){
@@ -23866,6 +23867,7 @@ int main(void){
   }
   res = sem_getvalue(a, &count);
   sem_close(a);
+  sem_unlink("/autocftw");
   return res==-1 ? 1 : 0;
 }
 
diff --git a/configure.in b/configure.in
index 711856da46d..af1855ede13 100644
--- a/configure.in
+++ b/configure.in
@@ -3324,6 +3324,7 @@ int main(void) {
     return 1;
   }
   sem_close(a);
+  sem_unlink("/autoconf");
   return 0;
 }
 ], ac_cv_posix_semaphores_enabled=yes,
@@ -3348,7 +3349,7 @@ AC_TRY_RUN([
 #include <sys/stat.h>
 
 int main(void){
-  sem_t *a = sem_open("/autoconf", O_CREAT, S_IRUSR|S_IWUSR, 0);
+  sem_t *a = sem_open("/autocftw", O_CREAT, S_IRUSR|S_IWUSR, 0);
   int count;
   int res;
   if(a==SEM_FAILED){
@@ -3358,6 +3359,7 @@ int main(void){
   }
   res = sem_getvalue(a, &count);
   sem_close(a);
+  sem_unlink("/autocftw");
   return res==-1 ? 1 : 0;
 }
 ], ac_cv_broken_sem_getvalue=no,