add m32rx docs

[deliverable/binutils-gdb.git] / ld / configure.in

diff --git a/ld/configure.in b/ld/configure.in
index 01b802eeaeea7b63850795067480a8a91239ed7a..a0fef19f7905d9098ff078690e53cc0121ec3c13 100644 (file)
--- a/ld/configure.in
+++ b/ld/configure.in
@@ -68,6 +68,23 @@ BFD_NEED_DECLARATION(sbrk)
 BFD_NEED_DECLARATION(getenv)
 BFD_NEED_DECLARATION(environ)
 
+# 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_CACHE_VAL(ld_cv_string_concatenation,
+[AC_TRY_COMPILE(,[char *a = "a" "a";],
+  [ld_cv_string_concatenation=true],
+  [ld_cv_string_concatenation=false])])
+if test "$ld_cv_string_concatenation" = "true"; then
+  STRINGIFY=astring.sed
+else
+  STRINGIFY=ostring.sed
+fi
+AC_SUBST(STRINGIFY)
+
 # target-specific stuff:
 
 all_targets=
@@ -88,7 +105,7 @@ do
     all_targets=true
   else
     # Canonicalize the secondary target names.
-    result=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $targ_alias 2>/dev/null`
+    result=`$ac_config_sub $targ_alias 2>/dev/null`
     if test -n "$result"; then
        targ=$result
     else