+# When converting linker scripts into strings for use in emulation
+# files, use astring.sed if the compiler supports ANSI string
+# concatenation, or ostring.sed otherwise. This is to support the
+# broken Microsoft MSVC compiler, which limits the length of string
+# constants, while still supporting pre-ANSI compilers which do not
+# support string concatenation.
+AC_MSG_CHECKING([whether ANSI C string concatenation works])
+AC_CACHE_VAL(ld_cv_string_concatenation,
+[AC_TRY_COMPILE(,[char *a = "a" "a";],
+ [ld_cv_string_concatenation=yes],
+ [ld_cv_string_concatenation=no])])
+AC_MSG_RESULT($ld_cv_string_concatenation)
+if test "$ld_cv_string_concatenation" = "yes"; then
+ STRINGIFY=astring.sed
+else
+ STRINGIFY=ostring.sed
+fi
+AC_SUBST(STRINGIFY)
+
+# target-specific stuff:
+
+all_targets=
+EMUL=
+all_emuls=
+all_emul_extras=
+all_libpath=
+
+dnl We need to get an arbitrary number of tdir definitions into
+dnl Makefile. We can't do it using AC_SUBST, because autoconf does
+dnl not permit literal newlines in an AC_SUBST variables. So we use a
+dnl file.
+rm -f tdirs
+
+for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
+do
+ if test "$targ_alias" = "all"; then
+ all_targets=true
+ else
+ # Canonicalize the secondary target names.
+ result=`$ac_config_sub $targ_alias 2>/dev/null`
+ if test -n "$result"; then
+ targ=$result
+ else
+ targ=$targ_alias
+ fi
+
+ . ${srcdir}/configure.tgt
+
+ if test "$targ" = "$target"; then
+ EMUL=$targ_emul
+ fi
+
+ for i in $targ_emul $targ_extra_emuls $targ_extra_libpath; do
+ case " $all_emuls " in
+ *" e${i}.o "*) ;;
+ *)
+ all_emuls="$all_emuls e${i}.o"
+ eval result=\$tdir_$i
+ test -z "$result" && result=$targ_alias
+ echo tdir_$i=$result >> tdirs
+ ;;