-ac_ext=c
+
+
+target_elf=no
+case $target in
+ *-darwin* | *-aix* | *-cygwin* | *-mingw* | *-aout* | *-*coff* | \
+ *-msdosdjgpp* | *-netware* | *-vms* | *-wince* | *-*-pe* | \
+ alpha*-dec-osf* | *-interix* | hppa[12]*-*-hpux*)
+ target_elf=no
+ ;;
+ *)
+ target_elf=yes
+ ;;
+esac
+
+if test $target_elf = yes; then :
+
+else
+ if test x"$default_enable_lto" = x"yes" ; then
+ enable_lto=no
+else
+ if test x"$enable_lto" = x"yes"; then
+ as_fn_error "LTO support requires an ELF target." "$LINENO" 5
+ fi
+fi
+default_enable_lto=no
+fi
+
+
+if test x"$enable_lto" = x"yes" ; then
+ # Make sure that libelf.h and gelf.h are available.
+
+# Check whether --with-libelf was given.
+if test "${with_libelf+set}" = set; then :
+ withval=$with_libelf;
+fi
+
+
+
+# Check whether --with-libelf_include was given.
+if test "${with_libelf_include+set}" = set; then :
+ withval=$with_libelf_include;
+fi
+
+
+
+# Check whether --with-libelf_lib was given.
+if test "${with_libelf_lib+set}" = set; then :
+ withval=$with_libelf_lib;
+fi
+
+
+ saved_CFLAGS="$CFLAGS"
+ saved_CPPFLAGS="$CPPFLAGS"
+ saved_LIBS="$LIBS"
+
+ case $with_libelf in
+ "")
+ libelflibs="-lelf"
+ libelfinc="-I/usr/include/libelf"
+ ;;
+ *)
+ libelflibs="-L$with_libelf/lib -lelf"
+ libelfinc="-I$with_libelf/include -I$with_libelf/include/libelf"
+ LIBS="$libelflibs $LIBS"
+ ;;
+ esac
+
+ if test "x$with_libelf_include" != x; then
+ libelfinc="-I$with_libelf_include"
+ fi
+
+ if test "x$with_libelf_lib" != x; then
+ libelflibs="-L$with_libelf_lib -lelf"
+ LIBS="$libelflibs $LIBS"
+ fi
+
+ if test "x$with_libelf$with_libelf_include$with_libelf_lib" = x \
+ && test -d ${srcdir}/libelf; then
+ libelflibs='-L$$r/$(HOST_SUBDIR)/libelf/lib -lelf '
+ libelfinc='-D__LIBELF_INTERNAL__ -I$$r/$(HOST_SUBDIR)/libelf/lib -I$$s/libelf/lib'
+ LIBS="$libelflibs $LIBS"
+
+ else
+
+ CFLAGS="$CFLAGS $libelfinc"
+ CPPFLAGS="$CPPFLAGS $libelfinc"
+ LIBS="$LIBS $libelflibs"
+
+ ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'