Index: libgcrypt-1.7.4/acinclude.m4
===================================================================
--- libgcrypt-1.7.4.orig/acinclude.m4
+++ libgcrypt-1.7.4/acinclude.m4
@@ -242,7 +242,7 @@ int main()
     pool += (pgsize - ((long int)pool % pgsize));
 
     err = mlock( pool, 4096 );
-    if( !err || errno == EPERM || errno == EGAIN)
+    if( !err || errno == EPERM || errno == EAGAIN)
         return 0; /* okay */
 
     return 1;  /* hmmm */