GDB 7.6.50

config/dfp.m4

 dnl @synopsis GCC_AC_ENABLE_DECIMAL_FLOAT([target triplet])
 dnl
 dnl Enable C extension for decimal float if target supports it.
 dnl
 dnl @author Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 
 AC_DEFUN([GCC_AC_ENABLE_DECIMAL_FLOAT],
 [
 AC_ARG_ENABLE(decimal-float,
 [  --enable-decimal-float={no,yes,bid,dpd}
                         enable decimal float extension to C.  Selecting 'bid'
                         or 'dpd' choses which decimal floating point format
                         to use],
 [
   case $enable_decimal_float in
     yes | no | bid | dpd) default_decimal_float=$enable_decimal_float ;;
     *) AC_MSG_ERROR(['$enable_decimal_float' is an invalid value for --enable-decimal-float.
 Valid choices are 'yes', 'bid', 'dpd', and 'no'.]) ;;
   esac
 ],
 [
   case $1 in
     powerpc*-*-linux* | i?86*-*-linux* | x86_64*-*-linux* | s390*-*-linux* | \
+    i?86*-*-gnu* | \
     i?86*-*-mingw* | x86_64*-*-mingw* | \
-    i?86*-*-cygwin*)
+    i?86*-*-cygwin* | x86_64*-*-cygwin*)
       enable_decimal_float=yes
       ;;
     *)
       AC_MSG_WARN([decimal float is not supported for this target, ignored])
       enable_decimal_float=no
       ;;
   esac
 ])
 
 # x86's use BID format instead of DPD
@@ skipping 11 matching lines @@
     ;;
   xno)
     # ENABLE_DECIMAL_FLOAT is set to 0. But we have to have proper
     # dependency on libdecnumber.
     default_decimal_float=dpd
     ;;
 esac
 AC_SUBST(enable_decimal_float)
 
 ])