[Patch] Add to the libgfortran/newlib bodge to "detect" ftruncate support in ARM/AArch64/SH

	* configure.ac: Auto-detect newlib function support unless we
	know there are issues when configuring for a host.
	* configure: Regenerate.

From-SVN: r227301

libgfortran/ChangeLog

+2015-08-28  James Greenhalgh  <james.greenhalgh@arm.com>
+
+	* configure.ac: Auto-detect newlib function support unless we
+	know there are issues when configuring for a host.
+	* configure: Regenerate.
+
 2015-08-26  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
 
 	PR fortran/29600

libgfortran/configure

@@ -16474,8 +16474,13 @@ _ACEOF
 fi
 
 
+case "${host}--x${with_newlib}" in
+  mips*--xyes)
+    hardwire_newlib=1;;
+esac
+
 # Check for library functions.
-if test "x${with_newlib}" = "xyes"; then
+if test "${hardwire_newlib:-0}" -eq 1; then
    # We are being configured with a cross compiler.  AC_REPLACE_FUNCS
    # may not work correctly, because the compiler may not be able to
    # link executables.

libgfortran/configure.ac

@@ -273,8 +273,13 @@ GCC_HEADER_STDINT(gstdint.h)
 
 AC_CHECK_MEMBERS([struct stat.st_blksize, struct stat.st_blocks, struct stat.st_rdev])
 
+case "${host}--x${with_newlib}" in
+  mips*--xyes)
+    hardwire_newlib=1;;
+esac
+
 # Check for library functions.
-if test "x${with_newlib}" = "xyes"; then
+if test "${hardwire_newlib:-0}" -eq 1; then
    # We are being configured with a cross compiler.  AC_REPLACE_FUNCS
    # may not work correctly, because the compiler may not be able to
    # link executables.