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lib: Compile Mes libc against a compiler's own stddef.h and stdarg.h #8

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Merged
aoinoikaz merged 2 commits into from
Nov 6, 2026
Merged

lib: Compile Mes libc against a compiler's own stddef.h and stdarg.h #8

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052bcaf
include: sys/types.h: Define wchar_t as the compiler's __WCHAR_TYPE__.
aoinoikaz Nov 6, 2026
e25dc84
lib: vfprintf, vsnprintf: Fall back to va_arg without va_arg8.
aoinoikaz Nov 6, 2026
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6 changes: 6 additions & 0 deletions include/sys/types.h
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Original file line number Diff line number Diff line change
Expand Up @@ -165,9 +165,15 @@ typedef unsigned uid_t;
#ifndef __MES_WCHAR_T
#define __MES_WCHAR_T
#undef wchar_t
// The compiler names the type of a wide character literal for its
// target; MesCC names none.
#ifdef __WCHAR_TYPE__
typedef __WCHAR_TYPE__ wchar_t;
#else
typedef int wchar_t;
#endif
#endif
#endif

#endif // ! SYSTEM_LIBC

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6 changes: 6 additions & 0 deletions lib/stdio/vfprintf.c
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Expand Up @@ -23,6 +23,12 @@
#include <stdio.h>
#include <string.h>

/* A compiler's own stdarg.h defines va_arg alone, and its va_arg reads a
double as one. */
#ifndef va_arg8
#define va_arg8(ap, type) va_arg (ap, type)
#endif

int
vfprintf (FILE * f, char const *format, va_list ap)
{
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6 changes: 6 additions & 0 deletions lib/stdio/vsnprintf.c
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Expand Up @@ -23,6 +23,12 @@
#include <stdarg.h>
#include <string.h>

/* A compiler's own stdarg.h defines va_arg alone, and its va_arg reads a
double as one. */
#ifndef va_arg8
#define va_arg8(ap, type) va_arg (ap, type)
#endif

int
vsnprintf (char *str, size_t size, char const *format, va_list ap)
{
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