Compilation fix of picosat

Makefile.dir

 LUA_NAME := $(shell for lua in lua5.1 lua-5.1 lua51 lua ; do if pkg-config $$lua ; then echo $$lua ; break ; fi ; done)
 VALGRIND:=IN_VALGRIND=1 valgrind --leak-check=full --show-leak-kinds=all --track-fds=yes --trace-children=no --child-silent-after-fork=yes --error-exitcode=1
+# For picosat, it otherwise needs some headers not available on musl for a feature we don't need.
+EXTRA_DEFINES := NGETRUSAGE
 
 include $(S)/build/Makefile.top
 

build @ fbc4d510

-Subproject commit c555a99d459430783b2f66d627ed844b41a93b1b
+Subproject commit fbc4d51078e40b737b85ba1eda7b47bea967ce85