--- libgcrypt/configure.ac.old	2017-04-20 16:49:00.239092950 +0200
+++ libgcrypt/configure.ac	2017-04-20 16:57:18.205011934 +0200
@@ -215,7 +215,6 @@
 print_egd_notice=no
 have_w32_system=no
 have_w32ce_system=no
-have_pthread=no
 
 
 # Setup some stuff depending on host.
@@ -751,10 +750,9 @@
 # Check whether pthreads is available
 #
 if test "$have_w32_system" != yes; then
-  AC_CHECK_LIB(pthread,pthread_create,have_pthread=yes)
-  if test "$have_pthread" = yes; then
-    AC_DEFINE(HAVE_PTHREAD, 1 ,[Define if we have pthread.])
-  fi
+  AC_SEARCH_LIBS(pthread_create, pthread,[
+      AC_DEFINE(HAVE_PTHREAD, 1 ,[Define if we have pthread.])
+  ])
 fi