--- a/tools/gcc.jam	2020-06-15 10:53:45.252253351 +0100
+++ b/tools/gcc.jam	2020-05-26 16:17:53.190885235 +0100
@@ -1104,7 +1104,7 @@
     # Serialize execution of the 'link' action, since running N links in
     # parallel is just slower. For now, serialize only gcc links, it might be a
     # good idea to serialize all links.
-    JAM_SEMAPHORE on $(targets) = <s>gcc-link-semaphore ;
+#JAM_SEMAPHORE on $(targets) = <s>gcc-link-semaphore ;
     quote-rpath $(targets) ;
 }
 
@@ -1116,7 +1116,7 @@
 rule link.dll ( targets * : sources * : properties * )
 {
     SPACE on $(targets) = " " ;
-    JAM_SEMAPHORE on $(targets) = <s>gcc-link-semaphore ;
+#JAM_SEMAPHORE on $(targets) = <s>gcc-link-semaphore ;
     quote-rpath $(targets) ;
 }