1# Copyright (c) 1995, 1996, 1997, 1998 Cygnus Support
2#
3# The authors hereby grant permission to use, copy, modify, distribute,
4# and license this software and its documentation for any purpose, provided
5# that existing copyright notices are retained in all copies and that this
6# notice is included verbatim in any distributions. No written agreement,
7# license, or royalty fee is required for any of the authorized uses.
8# Modifications to this software may be copyrighted by their authors
9# and need not follow the licensing terms described here, provided that
10# the new terms are clearly indicated on the first page of each file where
11# they apply.
12#
13# Process this file with autoconf to produce a configure script.
14#
15AC_PREREQ(2.5)dnl
16AC_INIT(crt0.S)
17
18if test "${enable_shared}" = "yes" ; then
19    echo "Shared libraries not supported for cross compiling, ignored"
20fi
21
22if test "$srcdir" = "." ; then
23  if test "${with_target_subdir}" != "." ; then
24    libgloss_topdir="${srcdir}/${with_multisrctop}../../.."
25  else
26    libgloss_topdir="${srcdir}/${with_multisrctop}../.."
27  fi
28else
29  libgloss_topdir="${srcdir}/../.."
30fi
31AC_CONFIG_AUX_DIR($libgloss_topdir)
32
33AC_CANONICAL_SYSTEM
34AC_ARG_PROGRAM
35
36AC_PROG_INSTALL
37
38# FIXME: We temporarily define our own version of AC_PROG_CC.  This is
39# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We
40# are building a library that must be included in all links, so we
41# can't link an executable until this lib is built.
42# autoconf should provide a way to do this.
43
44AC_DEFUN(LIB_AC_PROG_CC,
45[AC_BEFORE([$0], [AC_PROG_CPP])dnl
46AC_CHECK_PROG(CC, gcc, gcc)
47if test -z "$CC"; then
48  AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
49  test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
50fi
51
52AC_PROG_CC_GNU
53
54if test $ac_cv_prog_gcc = yes; then
55  GCC=yes
56dnl Check whether -g works, even if CFLAGS is set, in case the package
57dnl plays around with CFLAGS (such as to build both debugging and
58dnl normal versions of a library), tasteless as that idea is.
59  ac_test_CFLAGS="${CFLAGS+set}"
60  ac_save_CFLAGS="$CFLAGS"
61  CFLAGS=
62  AC_PROG_CC_G
63  if test "$ac_test_CFLAGS" = set; then
64    CFLAGS="$ac_save_CFLAGS"
65  elif test $ac_cv_prog_cc_g = yes; then
66    CFLAGS="-g -O2"
67  else
68    CFLAGS="-O2"
69  fi
70else
71  GCC=
72  test "${CFLAGS+set}" = set || CFLAGS="-g"
73fi
74])
75
76LIB_AC_PROG_CC
77AS=${AS-as}
78AC_SUBST(AS)
79AR=${AR-ar}
80AC_SUBST(AR)
81LD=${LD-ld}
82AC_SUBST(LD)
83AC_PROG_RANLIB
84
85case "${target}" in
86  *)
87        part_specific_obj=vr4300.o
88        ;;
89esac
90
91host_makefile_frag=${srcdir}/../config/default.mh
92target_makefile_frag=${srcdir}/../config/mn10200.mt
93
94dnl We have to assign the same value to other variables because autoconf
95dnl doesn't provide a mechanism to substitute a replacement keyword with
96dnl arbitrary data or pathnames.
97dnl
98host_makefile_frag_path=$host_makefile_frag
99AC_SUBST(host_makefile_frag_path)
100AC_SUBST_FILE(host_makefile_frag)
101target_makefile_frag_path=$target_makefile_frag
102AC_SUBST(target_makefile_frag_path)
103AC_SUBST_FILE(target_makefile_frag)
104AC_SUBST(part_specific_obj)
105
106AC_OUTPUT(Makefile,
107. ${libgloss_topdir}/config-ml.in,
108srcdir=${srcdir}
109target=${target}
110ac_configure_args="${ac_configure_args} --enable-multilib"
111CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
112libgloss_topdir=${libgloss_topdir}
113)
114
115
116