[Bug target/34484] pulls in allegedly unneeded floatingpoint exception access funcs

["aldot at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #11 from aldot at gcc dot gnu dot org  2008-06-24 11:21 -------
libdecnumber hunk could look like this:

Index: libdecnumber/configure.ac
===================================================================
--- libdecnumber/configure.ac   (revision 137059)
+++ libdecnumber/configure.ac   (working copy)
@@ -49,6 +49,7 @@ ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual]

 # Checks for header files.
 AC_CHECK_HEADERS(ctype.h stddef.h string.h stdio.h)
+AC_CHECK_HEADER([fenv.h],[],[libdecnumber_cv_fenv=no])
 GCC_HEADER_STDINT(gstdint.h)

 # Checks for typedefs, structures, and compiler characteristics.
@@ -99,10 +100,13 @@ Valid choices are 'yes', 'bid', 'dpd', a
   esac
 ])

+if test x$libdecnumber_cv_fenv = xno; then
+  enable_decimal_float=no
+elif test x$enable_decimal_float = xyes -o x$enable_decimal_float = xno; then
 # x86's use BID format instead of DPD
 # In theory --enable-decimal-float=no should not compile anything
 # For the sake of simplicity, just use the default format in this directory
-if test x$enable_decimal_float = xyes -o x$enable_decimal_float = xno; then
+
   case $target in
     i?86*-*-linux* | x86_64*-*-linux*)
       enable_decimal_float=bid


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34484