1# Copyright (c) 1995, 1996 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. 14AC_PREREQ(2.5)dnl 15AC_INIT(crt0.S) 16 17if test "${enable_shared}" = "yes" ; then 18 echo "Shared libraries not supported for cross compiling, ignored" 19fi 20 21if test "$srcdir" = "." ; then 22 if test "${with_target_subdir}" != "." ; then 23 libgloss_topdir="${with_multisrctop}../../.." 24 else 25 libgloss_topdir="${with_multisrctop}../.." 26 fi 27else 28 libgloss_topdir="${srcdir}/../.." 29fi 30 31AC_CONFIG_AUX_DIR($libgloss_topdir) 32AC_CANONICAL_SYSTEM 33AC_ARG_PROGRAM 34 35AC_PROG_INSTALL 36 37# FIXME: We temporarily define our own version of AC_PROG_CC. This is 38# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We 39# are probably using a cross compiler, which will not be able to fully 40# link an executable. This should really be fixed in autoconf 41# itself. 42 43AC_DEFUN(LIB_AC_PROG_CC, 44[AC_BEFORE([$0], [AC_PROG_CPP])dnl 45AC_CHECK_PROG(CC, gcc, gcc) 46if test -z "$CC"; then 47 AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) 48 test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) 49fi 50 51AC_PROG_CC_GNU 52 53if test $ac_cv_prog_gcc = yes; then 54 GCC=yes 55dnl Check whether -g works, even if CFLAGS is set, in case the package 56dnl plays around with CFLAGS (such as to build both debugging and 57dnl normal versions of a library), tasteless as that idea is. 58 ac_test_CFLAGS="${CFLAGS+set}" 59 ac_save_CFLAGS="$CFLAGS" 60 CFLAGS= 61 AC_PROG_CC_G 62 if test "$ac_test_CFLAGS" = set; then 63 CFLAGS="$ac_save_CFLAGS" 64 elif test $ac_cv_prog_cc_g = yes; then 65 CFLAGS="-g -O2" 66 else 67 CFLAGS="-O2" 68 fi 69else 70 GCC= 71 test "${CFLAGS+set}" = set || CFLAGS="-g" 72fi 73]) 74 75LIB_AC_PROG_CC 76 77AS=${AS-as} 78AC_SUBST(AS) 79AR=${AR-ar} 80AC_SUBST(AR) 81LD=${LD-ld} 82AC_SUBST(LD) 83AC_PROG_RANLIB 84 85host_makefile_frag=${srcdir}/../config/default.mh 86target_makefile_frag=${srcdir}/../config/default.mt 87 88dnl We have to assign the same value to other variables because autoconf 89dnl doesn't provide a mechanism to substitute a replacement keyword with 90dnl arbitrary data or pathnames. 91dnl 92host_makefile_frag_path=$host_makefile_frag 93AC_SUBST(host_makefile_frag_path) 94AC_SUBST_FILE(host_makefile_frag) 95target_makefile_frag_path=$target_makefile_frag 96AC_SUBST(target_makefile_frag_path) 97AC_SUBST_FILE(target_makefile_frag) 98 99AC_OUTPUT(Makefile, 100. ${libgloss_topdir}/config-ml.in, 101srcdir=${srcdir} 102target=${target} 103ac_configure_args="${ac_configure_args} --enable-multilib" 104CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} 105libgloss_topdir=${libgloss_topdir} 106) 107 108