+2009-07-30 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
+
+ * extensions.m4 (AC_USE_SYSTEM_EXTENSIONS): Do not expand
+ for Autoconf 2.62 or newer.
+ * tls.m4 (GCC_CHECK_TLS): Fix m4 quotation.
+ * no-executables.m4 (_AC_COMPILER_EXEEXT): Fix m4 quotation.
+ * override.m4 (m4_copy_force, m4_rename_force): Provide
+ macros if not defined.
+ (AC_PREREQ): Use m4_copy_force.
+