pforth: check in forgotten CMakeLists patch

packages/pforth/CMakeLists.txt.patch

@@ -0,0 +1,22 @@
+--- ../CMakeLists.txt.orig	2022-02-04 15:41:06.250332497 +0000
++++ ./CMakeLists.txt	2022-02-04 16:24:58.062366747 +0000
+@@ -38,9 +38,9 @@
+ endif(WIN32)
+ 
+ add_subdirectory(csrc)
+-if(NOT WIN32 AND NOT APPLE)
++if(NOT WIN32 AND NOT APPLE AND NOT ANDROID)
+ 	link_libraries(rt pthread)
+-endif(NOT WIN32 AND NOT APPLE)
++endif(NOT WIN32 AND NOT APPLE AND NOT ANDROID)
+ 
+ option(UNISTD "Enable libunistd" false)
+ if(UNISTD)
+@@ -61,7 +61,6 @@
+ add_custom_command(OUTPUT ${PFORTH_DIC}
+   COMMAND ./pforth -i system.fth
+   WORKING_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}
+-  DEPENDS pforth
+   COMMENT Building pforth.dic
+   VERBATIM
+   )