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ax_emptyarray.m4 ax_openvpn_lib.m4 ax_socklen_t.m4 ax_varargs.m4 Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com> Acked-by: Adriaan de Jong <dejong@fox-it.com> Signed-off-by: David Sommerseth <davids@redhat.com>
44 lines
1.6 KiB
Plaintext
44 lines
1.6 KiB
Plaintext
dnl @synopsis AX_CPP_VARARG_MACRO_GCC
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dnl
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dnl Test if the preprocessor understands GNU GCC-style vararg macros.
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dnl If it does, defines HAVE_CPP_VARARG_MACRO_GCC to 1.
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dnl
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dnl @version
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dnl @author James Yonan <jim@yonan.net>, Matthias Andree <matthias.andree@web.de>
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AC_DEFUN([AX_CPP_VARARG_MACRO_GCC], [dnl
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AS_VAR_PUSHDEF([VAR],[ax_cv_cpp_vararg_macro_gcc])dnl
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AC_CACHE_CHECK([for GNU GCC vararg macro support], VAR, [dnl
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([
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#define macro(a, b...) func(a, b)
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int func(int a, int b, int c);
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int test() { return macro(1, 2, 3); }
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])], [ VAR=yes ], [VAR=no])])
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if test $VAR = yes ; then
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AC_DEFINE([HAVE_CPP_VARARG_MACRO_GCC], 1,
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[Define to 1 if your compiler supports GNU GCC-style variadic macros])
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fi
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AS_VAR_POPDEF([VAR])dnl
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])
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dnl @synopsis AX_CPP_VARARG_MACRO_ISO
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dnl
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dnl Test if the preprocessor understands ISO C 1999 vararg macros.
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dnl If it does, defines HAVE_CPP_VARARG_MACRO_ISO to 1.
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dnl
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dnl @version
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dnl @author James Yonan <jim@yonan.net>, Matthias Andree <matthias.andree@web.de>
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AC_DEFUN([AX_CPP_VARARG_MACRO_ISO], [dnl
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AS_VAR_PUSHDEF([VAR],[ax_cv_cpp_vararg_macro_iso])dnl
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AC_CACHE_CHECK([for ISO C 1999 vararg macro support], VAR, [dnl
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([
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#define macro(a, ...) func(a, __VA_ARGS__)
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int func(int a, int b, int c);
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int test() { return macro(1, 2, 3); }
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])], [ VAR=yes ], [VAR=no])])
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if test $VAR = yes ; then
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AC_DEFINE([HAVE_CPP_VARARG_MACRO_ISO], 1,
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[Define to 1 if your compiler supports ISO C99 variadic macros])
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fi
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AS_VAR_POPDEF([VAR])dnl
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])
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