diff -r -u old/Project/GNU/Library/configure.ac Project/GNU/Library/configure.ac
--- old/Project/GNU/Library/configure.ac	2017-11-02 13:44:15.000000000 +0100
+++ Project/GNU/Library/configure.ac	2019-12-05 13:03:44.363859500 +0100
@@ -124,10 +124,10 @@
 dnl Common
 dnl
 if test "$enable_shared" = "yes"; then
-    ZenLib_LIBS="-L$(pwd)/.libs -lzen -lpthread -lstdc++ $ZenLib_LIBS"
+    ZenLib_LIBS="-L$(pwd)/.libs -lzen -lstdc++ $ZenLib_LIBS"
 fi
 if test "$enable_static" = "yes"; then
-    ZenLib_LIBS_Static="$(pwd)/.libs/libzen.a -lpthread -lstdc++ $ZenLib_LIBS_Static"
+    ZenLib_LIBS_Static="$(pwd)/.libs/libzen.a -lstdc++ $ZenLib_LIBS_Static"
 fi
 
 dnl #########################################################################
@@ -232,7 +232,7 @@
 dnl -------------------------------------------------------------------------
 dnl External libs
 dnl
-LDFLAGS="$LDFLAGS -lpthread -lstdc++"
+LDFLAGS="$LDFLAGS -lstdc++"
 
 dnl #########################################################################
 dnl ### Output
diff -r -u old/Project/GNU/Library/libzen.pc.in Project/GNU/Library/libzen.pc.in
--- old/Project/GNU/Library/libzen.pc.in	2017-11-02 13:44:14.000000000 +0100
+++ Project/GNU/Library/libzen.pc.in	2019-12-05 13:03:44.363859500 +0100
@@ -4,10 +4,10 @@
 includedir=@includedir@
 Unicode=@ZenLib_Unicode@
 WstringMissing=@ZenLib_wstring_missing@
-Libs_Static=@libdir@/libzen.a -lpthread
+Libs_Static=@libdir@/libzen.a
 
 Name: libzen
 Version: @PACKAGE_VERSION@
 Description: ZenLib
-Libs: -L${libdir} -lzen -lpthread -lstdc++
+Libs: -L${libdir} -lzen -lstdc++
 Cflags: -I${includedir} @ZenLib_CXXFLAGS@