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Remove variadic macros test from configure

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This is useless, all still supported compilers except ancient MSVS
versions (for which configure is not used anyhow) support variadic
macros, so don't waste time testing for them.

Note that the checks for HAVE_VARIADIC_MACROS in the sources are still
left because it is still possible to explicitly disable variadic macros
support using --disable-vararg_macros for strict C++98 compatibility.
This commit is contained in:
Vadim Zeitlin 2020-10-20 01:54:53 +02:00
parent 426a0ed527
commit da3aef753e
6 changed files with 4 additions and 106 deletions
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58
configure vendored
View file

@ -19954,63 +19954,7 @@ $as_echo "$wx_cv_type_va_list_lvalue" >&6; }
fi
fi
if test "$wxUSE_VARARG_MACROS" = "yes"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the compiler supports variadic macros" >&5
$as_echo_n "checking whether the compiler supports variadic macros... " >&6; }
if ${wx_cv_have_variadic_macros+:} false; then :
$as_echo_n "(cached) " >&6
else
ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#include <stdio.h>
#define test(fmt, ...) printf(fmt, __VA_ARGS__)
int
main ()
{
test("%s %d %p", "test", 1, 0);
;
return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
wx_cv_have_variadic_macros=yes
else
wx_cv_have_variadic_macros=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $wx_cv_have_variadic_macros" >&5
$as_echo "$wx_cv_have_variadic_macros" >&6; }
if test $wx_cv_have_variadic_macros = "yes"; then
$as_echo "#define HAVE_VARIADIC_MACROS 1" >>confdefs.h
fi
else
if test "$wxUSE_VARARG_MACROS" != "yes"; then
$as_echo "#define wxNO_VARIADIC_MACROS 1" >>confdefs.h
fi