207 lines
4.7 KiB
Plaintext
207 lines
4.7 KiB
Plaintext
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# Copyright (c) 1995, 1996 Cygnus Support
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#
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# The authors hereby grant permission to use, copy, modify, distribute,
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# and license this software and its documentation for any purpose, provided
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# that existing copyright notices are retained in all copies and that this
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# notice is included verbatim in any distributions. No written agreement,
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# license, or royalty fee is required for any of the authorized uses.
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# Modifications to this software may be copyrighted by their authors
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# and need not follow the licensing terms described here, provided that
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# the new terms are clearly indicated on the first page of each file where
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# they apply.
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#
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# Process this file with autoconf to produce a configure script.
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#
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AC_PREREQ(2.5)dnl
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AC_INIT(close.c)
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AC_CONFIG_HEADER(config.h)
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if test "${enable_shared}" = "yes" ; then
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echo "Shared libraries not supported for cross compiling, ignored"
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fi
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if test "$srcdir" = "." ; then
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if test "${with_target_subdir}" != "." ; then
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libgloss_topdir="${srcdir}/${with_multisrctop}../../.."
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else
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libgloss_topdir="${srcdir}/${with_multisrctop}../.."
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fi
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else
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libgloss_topdir="${srcdir}/../.."
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fi
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AC_CONFIG_AUX_DIR($libgloss_topdir)
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AC_CANONICAL_SYSTEM
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AC_ARG_PROGRAM
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AC_PROG_INSTALL
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# FIXME: We temporarily define our own version of AC_PROG_CC. This is
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# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We
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# are building a library that must be included in all links, so we
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# can't link an executable until this lib is built.
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# autoconf should provide a way to do this.
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AC_DEFUN(LIB_AC_PROG_CC,
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[AC_BEFORE([$0], [AC_PROG_CPP])dnl
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AC_CHECK_PROG(CC, gcc, gcc)
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if test -z "$CC"; then
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AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
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test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
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fi
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AC_PROG_CC_GNU
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if test $ac_cv_prog_gcc = yes; then
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GCC=yes
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dnl Check whether -g works, even if CFLAGS is set, in case the package
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dnl plays around with CFLAGS (such as to build both debugging and
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dnl normal versions of a library), tasteless as that idea is.
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ac_test_CFLAGS="${CFLAGS+set}"
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ac_save_CFLAGS="$CFLAGS"
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CFLAGS=
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AC_PROG_CC_G
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if test "$ac_test_CFLAGS" = set; then
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CFLAGS="$ac_save_CFLAGS"
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elif test $ac_cv_prog_cc_g = yes; then
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CFLAGS="-g -O2"
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else
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CFLAGS="-O2"
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fi
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else
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GCC=
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test "${CFLAGS+set}" = set || CFLAGS="-g"
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fi
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])
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AC_DEFINE(HAVE_GNU_LD)
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dnl Make sure syscall names match those being used by newlib
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case "${target}" in
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*-*-cygwin*)
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;;
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a29k-amd-udi)
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;;
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arc-*-*)
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;;
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arm-*-pe)
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;;
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arm-*-*)
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;;
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strongarm-*-*)
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;;
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d10v*)
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;;
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h8300*-*-*)
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;;
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h8500-*-*)
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;;
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i[3456]86-*-sco*)
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;;
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m32r-*-*)
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;;
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mn10?00-*-*)
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;;
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powerpcle-*-pe)
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;;
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sh*-*-*)
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;;
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sparc-sun-sunos*)
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;;
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sparc64-*-*)
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;;
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thumb-*-pe)
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;;
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thumb-*-*)
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;;
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v850-*-*)
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;;
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v850e-*-*)
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;;
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v850ea-*-*)
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;;
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w65-*-*)
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;;
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z8k-*-*)
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;;
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*)
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AC_DEFINE(MISSING_SYSCALL_NAMES)
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;;
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esac
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dnl Make sure we know if elf format used
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case "${target}" in
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*-*-elf)
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AC_DEFINE(HAVE_ELF)
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AC_CACHE_CHECK(for .previous assembler directive,
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libc_cv_asm_previous_directive, [dnl
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cat > conftest.s <<EOF
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.section foo_section
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.previous
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EOF
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if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
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AC_DEFINE(HAVE_ASM_PREVIOUS_DIRECTIVE)
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else
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rm -f conftest*])
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AC_CACHE_CHECK(for .popsection assembler directive,
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libc_cv_asm_popsection_directive, [dnl
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cat > conftest.s <<EOF
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.pushsection foo_section
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.popsection
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EOF
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if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
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AC_DEFINE(HAVE_ASM_POPSECTION_DIRECTIVE)
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fi
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fi
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rm -f conftest*])
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;;
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esac
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AC_CACHE_CHECK(for function prefix, libc_dollar_prefix, [dnl
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cat > conftest.c <<\EOF
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foo () { }
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EOF
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dnl
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if AC_TRY_COMMAND([${CC-cc} -S conftest.c -o - | fgrep "\$foo" > /dev/null]);
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then
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libc_dollar_prefix=yes
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else
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libc_dollar_prefix=no
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fi
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rm -f conftest* ])
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if test $libc_dollar_prefix = yes ; then
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AC_DEFINE(__SYMBOL_PREFIX, "$")
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else
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AC_DEFINE(__SYMBOL_PREFIX, "")
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fi
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LIB_AC_PROG_CC
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AS=${AS-as}
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AC_SUBST(AS)
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AR=${AR-ar}
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AC_SUBST(AR)
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LD=${LD-ld}
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AC_SUBST(LD)
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AC_PROG_RANLIB
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host_makefile_frag=${srcdir}/../config/default.mh
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dnl We have to assign the same value to other variables because autoconf
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dnl doesn't provide a mechanism to substitute a replacement keyword with
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dnl arbitrary data or pathnames.
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dnl
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host_makefile_frag_path=$host_makefile_frag
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AC_SUBST(host_makefile_frag_path)
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AC_SUBST_FILE(host_makefile_frag)
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AC_OUTPUT(Makefile,
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ac_file=Makefile . ${libgloss_topdir}/config-ml.in,
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srcdir=${srcdir}
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target=${target}
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ac_configure_args="${ac_configure_args} --enable-multilib"
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CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
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libgloss_topdir=${libgloss_topdir}
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)
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