From: Bruno Haible Date: Wed, 3 Mar 2021 02:56:50 +0000 (+0100) Subject: stddef: Work around an interoperability problem of tcc with glibc. X-Git-Tag: v1.0~3053 X-Git-Url: https://gitweb.git.savannah.gnu.org/gitweb/?a=commitdiff_plain;h=3b0808afa4236e6fa221eac2ec25dc2a8ef09557;p=gnulib.git stddef: Work around an interoperability problem of tcc with glibc. Reported by Luca Saiu in . * lib/stddef.in.h [__TINYC__]: In case of the special invocation convention, undefine the macros that TinyCC's should undefine but doesn't. * doc/posix-headers/stddef.texi: Mention the TinyCC bug. --- diff --git a/ChangeLog b/ChangeLog index 7ba4369257..7480874c55 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,13 @@ +2021-03-02 Bruno Haible + + stddef: Work around an interoperability problem of tcc with glibc. + Reported by Luca Saiu in + . + * lib/stddef.in.h [__TINYC__]: In case of the special invocation + convention, undefine the macros that TinyCC's should undefine + but doesn't. + * doc/posix-headers/stddef.texi: Mention the TinyCC bug. + 2021-03-02 Paul Eggert mbrtowc: port to AIX 7.1 with xlc 12.1 diff --git a/doc/posix-headers/stddef.texi b/doc/posix-headers/stddef.texi index dbc01034f6..ba27fa8d94 100644 --- a/doc/posix-headers/stddef.texi +++ b/doc/posix-headers/stddef.texi @@ -27,6 +27,10 @@ NetBSD 5.0 Some platforms provide a @code{NULL} macro whose value does not have the size of a pointer: AIX 7.2 with xlc in 64-bit mode. + +@item +When this header file is provided by TinyCC 0.9.27 on glibc systems, it does +not fulfil the expectations of other glibc header files. @end itemize Portability problems not fixed by Gnulib: diff --git a/lib/stddef.in.h b/lib/stddef.in.h index ba6f90360a..590e12c77e 100644 --- a/lib/stddef.in.h +++ b/lib/stddef.in.h @@ -42,6 +42,15 @@ # define _GL_STDDEF_WINT_T # endif # @INCLUDE_NEXT@ @NEXT_STDDEF_H@ + /* On TinyCC, make sure that the macros that indicate the special invocation + convention get undefined. */ +# ifdef __TINYC__ +# undef __need_wchar_t +# undef __need_size_t +# undef __need_ptrdiff_t +# undef __need_NULL +# undef __need_wint_t +# endif # endif #else