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added fool-proof test for sizeof(wchar_t) that works on SGI/Irix. This a workaround for autoconf's limitation.

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9877 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík
2001-04-25 18:36:05 +00:00
parent 65ba4113c6
commit b93d0d082d
2 changed files with 322 additions and 289 deletions
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585
configure vendored
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26
configure.in
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@@ -2324,13 +2324,37 @@ dnl check the sizes of integral types (give some reasonable default values for
dnl cross-compiling) dnl cross-compiling)
dnl defines the size of certain types of variables in SIZEOF_<TYPE> dnl defines the size of certain types of variables in SIZEOF_<TYPE>
AC_CHECK_SIZEOF(char, 1) AC_CHECK_SIZEOF(char, 1)
AC_CHECK_SIZEOF(wchar_t, 4)
AC_CHECK_SIZEOF(short, 2) AC_CHECK_SIZEOF(short, 2)
AC_CHECK_SIZEOF(int *, 4) AC_CHECK_SIZEOF(int *, 4)
AC_CHECK_SIZEOF(int, 4) AC_CHECK_SIZEOF(int, 4)
AC_CHECK_SIZEOF(long, 4) AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(long long, 0) AC_CHECK_SIZEOF(long long, 0)
dnl we have to do it ourselves because SGI/Irix's stdio.h does not include
dnl wchar_t an AC_CHECK_SIZEOF only includes stdio.h
AC_CACHE_CHECK([size of wchar_t], wx_cv_sizeof_wchar_t,
[
AC_TRY_RUN(
[
#include <wchar.h>
#include <stdio.h>
int main()
{
FILE *f=fopen("conftestval", "w");
if (!f) exit(1);
fprintf(f, "%i", sizeof(wchar_t));
exit(0);
}
],
wx_cv_sizeof_wchar_t=`cat conftestval`,
wx_cv_sizeof_wchar_t=0,
wx_cv_sizeof_wchar_t=4
)
])
AC_DEFINE_UNQUOTED(wxSIZEOF_WCHAR_T, $wx_cv_sizeof_wchar_t)
dnl for bytesex stuff (don't use AC_C_BIGENDIAN to allow cross-compiling) dnl for bytesex stuff (don't use AC_C_BIGENDIAN to allow cross-compiling)
WX_C_BIGENDIAN WX_C_BIGENDIAN