* gcc.c, cp/lang-specs.h, f/lang-specs.h, java/lang-specs.h,
objc/lang-specs.h: Add zero initializer for cpp_spec field to
all array elements.
* cp/lang-specs.h: Don't put an #ifdef inside the initializer
list; set a default for CPLUSPLUS_CPP_SPEC and use it.
From-SVN: r40173
