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Annotation of OpenXM_contrib/gmp/mpn/Makeasm.am, Revision 1.1

1.1     ! ohara       1: ## Automake asm file rules.
        !             2:
        !             3: # Copyright 1996, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
        !             4: #
        !             5: # This file is part of the GNU MP Library.
        !             6: #
        !             7: # The GNU MP Library is free software; you can redistribute it and/or modify
        !             8: # it under the terms of the GNU Lesser General Public License as published by
        !             9: # the Free Software Foundation; either version 2.1 of the License, or (at your
        !            10: # option) any later version.
        !            11: #
        !            12: # The GNU MP Library is distributed in the hope that it will be useful, but
        !            13: # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            14: # or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
        !            15: # License for more details.
        !            16: #
        !            17: # You should have received a copy of the GNU Lesser General Public License
        !            18: # along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
        !            19: # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
        !            20: # MA 02111-1307, USA.
        !            21:
        !            22:
        !            23: # COMPILE minus CC.
        !            24: #
        !            25: COMPILE_FLAGS = $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
        !            26:        $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
        !            27:
        !            28: # Flags used for preprocessing (in ansi2knr rules).
        !            29: #
        !            30: PREPROCESS_FLAGS = $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
        !            31:        $(CPPFLAGS)
        !            32:
        !            33:
        !            34: # Recent versions of automake (1.5 and up for instance) append automake
        !            35: # generated suffixes to this $(SUFFIXES) list.  This is essential for us,
        !            36: # since .c must come after .s, .S and .asm.  If .c is before .s, for
        !            37: # instance, then in the mpn directory "make" will see add_n.c mentioned in
        !            38: # an explicit rule (the ansi2knr stuff) and decide it must have add_n.c,
        !            39: # even if add_n.c doesn't exist but add_n.s does.  See GNU make
        !            40: # documentation "(make)Implicit Rule Search", part 5c.
        !            41: #
        !            42: # On IRIX 6 native make this doesn't work properly though.  Somehow .c
        !            43: # remains ahead of .s, perhaps because .c.s is a builtin rule.  .asm works
        !            44: # fine though, and mpn/mips3 uses this.
        !            45: #
        !            46: SUFFIXES = .s .S .asm
        !            47:
        !            48:
        !            49: # .s assembler, no preprocessing.
        !            50: #
        !            51: .s.o:
        !            52:        $(CCAS) $(COMPILE_FLAGS) `test -f $< || echo '$(srcdir)/'`$<
        !            53: .s.obj:
        !            54:        $(CCAS) $(COMPILE_FLAGS) `cygpath -w $<`
        !            55: .s.lo:
        !            56:        $(LIBTOOL) --mode=compile $(CCAS) $(COMPILE_FLAGS) `test -f $< || echo '$(srcdir)/'`$<
        !            57:
        !            58:
        !            59: # can be overridden during development, eg. "make RM_TMP=: mul_1.lo"
        !            60: RM_TMP = rm -f
        !            61:
        !            62:
        !            63: # .S assembler, preprocessed with cpp.
        !            64: #
        !            65: # It's necessary to run $(CPP) separately, since it seems not all compilers
        !            66: # recognise .S files, in particular "cc" on HP-UX 10 and 11 doesn't (and
        !            67: # will silently do nothing if given a .S).
        !            68: #
        !            69: # For .lo we need a helper script, as described below for .asm.lo.
        !            70: #
        !            71: .S.o:
        !            72:        $(CPP) $(PREPROCESS_FLAGS) `test -f $< || echo '$(srcdir)/'`$< | grep -v '^#' >tmp-$*.s
        !            73:        $(CCAS) $(COMPILE_FLAGS) tmp-$*.s -o $@
        !            74:        $(RM_TMP) tmp-$*.s
        !            75: .S.obj:
        !            76:        $(CPP) $(PREPROCESS_FLAGS) `cygpath -w $<` | grep -v '^#' >tmp-$*.s
        !            77:        $(CCAS) $(COMPILE_FLAGS) tmp-$*.s -o $@
        !            78:        $(RM_TMP) tmp-$*.s
        !            79: .S.lo:
        !            80:        $(LIBTOOL) --mode=compile --tag=CC $(top_srcdir)/mpn/cpp-ccas --cpp="$(CPP) $(PREPROCESS_FLAGS)" $(CCAS) $(COMPILE_FLAGS) `test -f $< || echo '$(srcdir)/'`$<
        !            81:
        !            82:
        !            83: # .asm assembler, preprocessed with m4.
        !            84: #
        !            85: # .o and .obj are non-PIC and just need m4 followed by a compile.
        !            86: #
        !            87: # .lo is a bit tricky.  Libtool (as of version 1.5) has foo.lo as a little
        !            88: # text file, and .libs/foo.o and foo.o as the PIC and non-PIC objects,
        !            89: # respectively.  It'd be asking for lots of trouble to try to create foo.lo
        !            90: # ourselves, so instead arrange to invoke libtool like a --mode=compile, but
        !            91: # with a special m4-ccas script which first m4 preprocesses, then compiles.
        !            92: # --tag=CC is necessary since foo.asm is otherwise unknown to libtool.
        !            93: #
        !            94: # Libtool adds -DPIC when building a shared object and the .asm files look
        !            95: # for that.  But it should be noted that the other PIC flags are on occasion
        !            96: # important too, in particular FreeBSD 2.2.8 gas 1.92.3 requires -k before
        !            97: # it accepts PIC constructs like @GOT, and gcc adds that flag only under
        !            98: # -fPIC.  (Later versions of gas are happy to accept PIC stuff any time.)
        !            99: #
        !           100: .asm.o:
        !           101:        $(M4) -DOPERATION_$* `test -f $< || echo '$(srcdir)/'`$< >tmp-$*.s
        !           102:        $(CCAS) $(COMPILE_FLAGS) tmp-$*.s -o $@
        !           103:        $(RM_TMP) tmp-$*.s
        !           104: .asm.obj:
        !           105:        $(M4) -DOPERATION_$* `cygpath -w $<` >tmp-$*.s
        !           106:        $(CCAS) $(COMPILE_FLAGS) tmp-$*.s -o $@
        !           107:        $(RM_TMP) tmp-$*.s
        !           108: .asm.lo:
        !           109:        $(LIBTOOL) --mode=compile --tag=CC $(top_srcdir)/mpn/m4-ccas --m4="$(M4)" $(CCAS) $(COMPILE_FLAGS) `test -f $< || echo '$(srcdir)/'`$<