64 lines
1.5 KiB
Plaintext
64 lines
1.5 KiB
Plaintext
dnl Id
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dnl
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AC_DEFUN([AC_BROKEN_SNPRINTF], [
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AC_CACHE_CHECK(for working snprintf,ac_cv_func_snprintf_working,
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ac_cv_func_snprintf_working=yes
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <stdio.h>
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#include <string.h>
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int main(int argc, char **argv)
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{
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char foo[[3]];
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snprintf(foo, 2, "12");
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return strcmp(foo, "1") || snprintf(NULL, 0, "%d", 12) != 2;
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}]])],[:],[ac_cv_func_snprintf_working=no],[:]))
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if test "$ac_cv_func_snprintf_working" = yes; then
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AC_DEFINE_UNQUOTED(HAVE_SNPRINTF, 1, [define if you have a working snprintf])
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fi
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if test "$ac_cv_func_snprintf_working" = yes; then
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AC_NEED_PROTO([#include <stdio.h>],snprintf)
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fi
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])
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AC_DEFUN([AC_BROKEN_VSNPRINTF],[
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AC_CACHE_CHECK(for working vsnprintf,ac_cv_func_vsnprintf_working,
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ac_cv_func_vsnprintf_working=yes
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AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <stdio.h>
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#include <string.h>
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#include <stdarg.h>
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int foo(int num, ...)
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{
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char bar[[3]];
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va_list arg;
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va_start(arg, num);
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vsnprintf(bar, 2, "%s", arg);
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va_end(arg);
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return strcmp(bar, "1");
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}
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int bar(int num, int len, ...)
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{
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int r;
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va_list arg;
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va_start(arg, len);
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r = vsnprintf(NULL, 0, "%s", arg);
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va_end(arg);
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return r != len;
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}
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int main(int argc, char **argv)
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{
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return foo(0, "12") || bar(0, 2, "12");
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}]])],[:],[ac_cv_func_vsnprintf_working=no],[:]))
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if test "$ac_cv_func_vsnprintf_working" = yes; then
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AC_DEFINE_UNQUOTED(HAVE_VSNPRINTF, 1, [define if you have a working vsnprintf])
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fi
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if test "$ac_cv_func_vsnprintf_working" = yes; then
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AC_NEED_PROTO([#include <stdio.h>],vsnprintf)
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fi
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])
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