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# -*- makefile -*- for the C-level run-time support for SBCL

# This software is part of the SBCL system. See the README file for
# more information.
# This software is derived from the CMU CL system, which was
# written at Carnegie Mellon University and released into the
# public domain. The software is in the public domain and is
# provided with absolutely no warranty. See the COPYING and CREDITS
# files for more information.

NM = ./linux-nm

ASSEM_SRC = x86-assem.S ldso-stubs.S
ARCH_SRC = x86-arch.c
OS_SRC = linux-os.c x86-linux-os.c

# The "--Wl,--export-dynamic" flags are here to help people
# experimenting with callbacks from C to SBCL, by allowing linkage to
# SBCL src/runtime/*.c symbols from C. Work on this is good, but it's
# definitely bleeding edge and not particularly stable. In particular,
# not only are the workarounds for the GC relocating Lisp code and
# data unstable, but even the basic calling convention might end up
# being unstable. Unless you want to do some masochistic maintenance
# work when new releases of SBCL come out, please don't try to build
# real code on this until a coherent stable interface has been added.
# (You *are* encouraged to design and implement a coherent stable
# interface, though.:-| As far as I (WHN 2002-05-19) know, no one is
# working on one and it would be a nice thing to have.)
LINKFLAGS += -Wl,--export-dynamic
OS_LIBS = -ldl

OS_LIBS += $(shell if grep LISP_FEATURE_SB_THREAD genesis/config.h \
                      > /dev/null 2>&1; \
                   then echo "-lpthread"; fi)

GC_SRC = gencgc.c

# Nothing to do for after-grovel-headers.
.PHONY: after-grovel-headers