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Makefile | 1994-08-10 | 2.7 KB | 76 lines |
- # Copyright (C) 1993, 1994 Free Software Foundation, Inc.
- # This file is part of the GNU C Library.
-
- # The GNU C Library is free software; you can redistribute it and/or
- # modify it under the terms of the GNU Library General Public License
- # as published by the Free Software Foundation; either version 2 of
- # the License, or (at your option) any later version.
-
- # The GNU C Library is distributed in the hope that it will be useful,
- # but WITHOUT ANY WARRANTY; without even the implied warranty of
- # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- # Library General Public License for more details.
-
- # You should have received a copy of the GNU Library General Public
- # License along with the GNU C Library; see the file COPYING.LIB. If
- # not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- # Cambridge, MA 02139, USA.
-
- ifndef mach-srcdir-computed
- mach-srcdir-computed := yes
-
- # If we were configured with `--with-mach=DIR', then config.make sets
- # mach-srcdir to DIR. Otherwise guess we are in a big source tree.
- ifndef mach-srcdir
- mach-srcdir = ../mach
- endif
-
- # mach-srcdir is now set to the logical directory name. This name might be
- # relative to $(objdir), might be relative to the source directory $(..), or
- # might be absolute. We choose among these possibilities by looking for a
- # canonical file in each of those places (in that order).
- f := mach/mach.defs # Random file that identifies the Mach source dir.
- f := $(strip $f)
- mach-srcdir := $(firstword $(patsubst %/$f,%,$(wildcard $(addsuffix /$f,\
- $(objpfx)$(mach-srcdir) $(..)$(mach-srcdir)))) $(mach-srcdir))
-
- endif # ! mach-srcdir-computed
-
- ifdef in-Makerules
-
- # Look for header files in mach/ under the top-level library source directory.
- includes += -I$(..)mach
-
- # When compiling, use the Mach header files directly from the kernel sources.
- includes += -I$(mach-srcdir)
-
- # Find Mach header files in the kernel source.
- vpath mach/%.h $(mach-srcdir)
- vpath device/%.h $(mach-srcdir)
-
- ifneq (mach,$(subdir))
- # Subdirectories other than mach/ might use the generated Mach headers.
- # So make sure we get a chance to run in mach/ to make them before all else.
-
- ifdef objpfx
- mach-objpfx = $(objpfx)
- else
- mach-objpfx = $(..)mach/
- endif
-
- # These are all the generated files that <mach.h> includes.
- mach-before-compile := $(mach-objpfx)mach-shortcuts.h \
- $(patsubst %,$(mach-objpfx)mach/mach_%.h,\
- interface port host)
-
- # This patsubst generates patterns like `m%h-shortcuts.h', which are damn
- # likely to match just the corresponding particular file we want.
- $(patsubst mach%,m\%h%,$(mach-before-compile)): # Run only if doesn't exist.
- @echo '+++ mach generation for $@: $^ ($?)'
- $(MAKE) -C $(..)mach generated no_deps=t
-
- before-compile += $(mach-before-compile)
- endif
-
- endif # in-Makerules
-