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tm.texi: Document new target switch, NO_BUILTIN_WCHAR_TYPE. 

* tm.texi: Document new target switch, NO_BUILTIN_WCHAR_TYPE.
	* cppinit.c (builtin_array): Define __WCHAR_TYPE__ only if
	NO_BUILTIN_WCHAR_TYPE is not defined.
	(CPP_WCHAR_TYPE): Delete.
	* cccp.c (main): Don't change wchar_type if cplusplus.
	(special_symbol, initialize_builtins): Honor NO_BUILTIN_WCHAR_TYPE.

From-SVN: r32241
This commit is contained in:
Zack Weinberg 2000-02-28 21:09:54 +00:00 committed by Zack Weinberg
parent 7cb4ce1205
commit 0209c3409d
4 changed files with 27 additions and 7 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2000-02-28 Zack Weinberg <zack@wolery.cumb.org>
* tm.texi: Document new target switch, NO_BUILTIN_WCHAR_TYPE.
* cppinit.c (builtin_array): Define __WCHAR_TYPE__ only if
NO_BUILTIN_WCHAR_TYPE is not defined.
(CPP_WCHAR_TYPE): Delete.
* cccp.c (main): Don't change wchar_type if cplusplus.
(special_symbol, initialize_builtins): Honor NO_BUILTIN_WCHAR_TYPE.
2000-02-28 Nick Clifton <nickc@cygnus.com>
* config/arm/arm-wince-pe.h (SIZE_TYPE): Define to "unsigned long".

11
gcc/cccp.c
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@ -1786,11 +1786,6 @@ main (argc, argv)
fp->nominal_fname_len = strlen (in_fname);
fp->lineno = 0;
/* In C++, wchar_t is a distinct basic type, and we can expect
__wchar_t to be defined by cc1plus. */
if (cplusplus)
wchar_type = "__wchar_t";
/* Install __LINE__, etc. Must follow initialize_char_syntax
and option processing. */
initialize_builtins (fp, &outbuf);
@ -4273,9 +4268,11 @@ special_symbol (hp, op)
break;
#endif
#ifndef NO_BUILTIN_WCHAR_TYPE
case T_WCHAR_TYPE:
buf = wchar_type;
break;
#endif
case T_USER_LABEL_PREFIX_TYPE:
buf = user_label_prefix;
@ -10298,7 +10295,9 @@ initialize_builtins (inp, outp)
#ifndef NO_BUILTIN_PTRDIFF_TYPE
install ((const U_CHAR *) "__PTRDIFF_TYPE__ ", -1, T_PTRDIFF_TYPE, NULL_PTR, -1);
#endif
#ifndef NO_BUILTIN_WCHAR_TYPE
install ((const U_CHAR *) "__WCHAR_TYPE__", -1, T_WCHAR_TYPE, NULL_PTR, -1);
#endif
install ((const U_CHAR *) "__USER_LABEL_PREFIX__", -1, T_USER_LABEL_PREFIX_TYPE,
NULL_PTR, -1);
install ((const U_CHAR *) "__REGISTER_PREFIX__", -1, T_REGISTER_PREFIX_TYPE,
@ -10347,10 +10346,12 @@ initialize_builtins (inp, outp)
outp, dp);
#endif
#ifndef NO_BUILTIN_WCHAR_TYPE
sprintf (directive, " __WCHAR_TYPE__ %s\n", wchar_type);
output_line_directive (inp, outp, 0, same_file);
pass_thru_directive (udirective, &udirective[strlen (directive)],
outp, dp);
#endif
sprintf (directive, " __DATE__ \"%s %2d %4d\"\n",
monthnames[timebuf->tm_mon],

4
gcc/cppinit.c
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@ -63,8 +63,6 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#ifndef WCHAR_TYPE
#define WCHAR_TYPE "int"
#endif
#define CPP_WCHAR_TYPE(PFILE) \
(CPP_OPTIONS (PFILE)->cplusplus ? "__wchar_t" : WCHAR_TYPE)
/* The string value for __USER_LABEL_PREFIX__ */
@ -530,7 +528,9 @@ static const struct builtin builtin_array[] =
#ifndef NO_BUILTIN_PTRDIFF_TYPE
{ "__PTRDIFF_TYPE__", PTRDIFF_TYPE, T_CONST, DUMP },
#endif
#ifndef NO_BUILTIN_WCHAR_TYPE
{ "__WCHAR_TYPE__", WCHAR_TYPE, T_CONST, DUMP },
#endif
{ 0, 0, 0, 0 }
};

10
gcc/tm.texi
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@ -128,6 +128,16 @@ This should be defined if @code{PTRDIFF_TYPE} depends on target dependent flags
which are not accessible to the preprocessor. Otherwise, it should not
be defined.
@findex NO_BUILTIN_WCHAR_TYPE
@item NO_BUILTIN_WCHAR_TYPE
If this macro is defined, the preprocessor will not define the builtin macro
@code{__WCHAR_TYPE__}. The macro @code{__WCHAR_TYPE__} must then be
defined by @code{CPP_SPEC} instead.
This should be defined if @code{WCHAR_TYPE} depends on target dependent flags
which are not accessible to the preprocessor. Otherwise, it should not
be defined.
@findex SIGNED_CHAR_SPEC
@item SIGNED_CHAR_SPEC
A C string constant that tells the GCC driver program options to