binutils-gdb/bfd/acinclude.m4

sinclude(acmacros.m4)

dnl This is a copy of AM_PROG_LIBTOOL from libtool 1.0, modified to
dnl not produce a shared library by default.
AC_DEFUN(AM_PROG_LIBTOOL,
[AC_REQUIRE([AC_CANONICAL_HOST])
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_PROG_RANLIB])
AC_REQUIRE([AM_PROG_LD])
AC_REQUIRE([AC_PROG_LN_S])

# Always use our own libtool.
LIBTOOL='$(top_builddir)/libtool'
AC_SUBST(LIBTOOL)

dnl Allow the --disable-shared flag to stop us from building shared libs.
AC_ARG_ENABLE(shared,
[  --enable-shared         build shared libraries [default=yes]],
test "$enableval" = no && libtool_shared=" --disable-shared",
libtool_shared=--disable-shared)

dnl Allow the --disable-static flag to stop us from building static libs.
AC_ARG_ENABLE(static,
[  --enable-static         build static libraries [default=yes]],
test "$enableval" = no && libtool_static=" --disable-static",
libtool_static=)

libtool_flags="$libtool_shared$libtool_static"
test "$silent" = yes && libtool_flags="$libtool_flags --silent"
test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"

# Some flags need to be propagated to the compiler or linker for good
# libtool support.
[case "$host" in
*-*-irix6*)
  for f in '-32' '-64' '-cckr' '-n32' '-mips1' '-mips2' '-mips3' '-mips4'; do
    if echo " $CC $CFLAGS " | egrep -e "[ 	]$f[	 ]" > /dev/null; then
      LD="${LD-ld} $f"
    fi
  done
  ;;

*-*-sco3.2v5*)
  # On SCO OpenServer 5, we need -belf to get full-featured binaries.
  CFLAGS="$CFLAGS -belf"
  ;;
esac]

# Actually configure libtool.  ac_aux_dir is where install-sh is found.
CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
LD="$LD" RANLIB="$RANLIB" LN_S="$LN_S" \
${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig \
$libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
|| AC_MSG_ERROR([libtool configure failed])
])

# AM_PROG_LD - find the path to the GNU or non-GNU linker
AC_DEFUN(AM_PROG_LD,
[AC_ARG_WITH(gnu-ld,
[  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
if test "$with_gnu_ld" = yes; then
  AC_MSG_CHECKING([for GNU ld])
else
  AC_MSG_CHECKING([for non-GNU ld])
fi
AC_CACHE_VAL(ac_cv_path_LD,
[case "$LD" in
  /*)
  ac_cv_path_LD="$LD" # Let the user override the test with a path.
  ;;
  *)
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
  for ac_dir in $PATH; do
    test -z "$ac_dir" && ac_dir=.
    if test -f "$ac_dir/ld"; then
      ac_cv_path_LD="$ac_dir/ld"
      # Check to see if the program is GNU ld.  I'd rather use --version,
      # but apparently some GNU ld's only accept -v.
      # Break only if it was the GNU/non-GNU ld that we prefer.
      if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU ld|with BFD)' > /dev/null; then
	test "$with_gnu_ld" = yes && break
      else
        test "$with_gnu_ld" != yes && break
      fi
    fi
  done
  IFS="$ac_save_ifs"
  ;;
esac])
LD="$ac_cv_path_LD"
if test -n "$LD"; then
  AC_MSG_RESULT($LD)
else
  AC_MSG_RESULT(no)
fi
test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
AC_SUBST(LD)
AM_PROG_LD_GNU
])

AC_DEFUN(AM_PROG_LD_GNU,
[AC_CACHE_CHECK([whether we are using GNU ld], ac_cv_prog_gnu_ld,
[# I'd rather use --version here, but apparently some GNU ld's only accept -v.
if $LD -v 2>&1 </dev/null | egrep '(GNU ld|with BFD)' > /dev/null; then
  ac_cv_prog_gnu_ld=yes
else
  ac_cv_prog_gnu_ld=no
fi])
])