ifeq ($(subdir),misc)
sysdep_routines += ioperm iopl
endif
ifeq ($(subdir),stdlib)
sysdep_routines += __start_context
ifeq ($(subdir),csu)
gen-as-const-headers += ucontext_i.sym
gen-as-const-headers += sigaltstack-offsets.sym
ifeq ($(subdir),elf)
sysdep_routines += dl-vdso