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4df219c764
Signed-off-by: Alon Bar-Lev <alon.barlev@gmail.com> Acked-by: David Sommerseth <davids@redhat.com> Signed-off-by: David Sommerseth <davids@redhat.com>
78 lines
1.6 KiB
Plaintext
78 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(
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[for GNU GCC vararg macro support],
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[VAR],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[
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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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]],
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[[
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int i = macro(1, 2, 3);
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]]
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)],
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[VAR=yes],
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[VAR=no]
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)]
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)dnl
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AS_VAR_IF(
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[VAR],
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[yes],
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[AC_DEFINE(
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[HAVE_CPP_VARARG_MACRO_GCC],
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[1],
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[Define to 1 if your compiler supports GNU GCC-style variadic macros]
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)]
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)dnl
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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(
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[for ISO C 1999 vararg macro support],
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[VAR],
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[AC_COMPILE_IFELSE(
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[AC_LANG_PROGRAM(
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[[
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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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]],
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[[
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int i = macro(1, 2, 3);
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]]
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)],
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[VAR=yes],
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[VAR=no]
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)]
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)dnl
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AS_VAR_IF(
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[VAR],
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[yes],
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[AC_DEFINE(
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[HAVE_CPP_VARARG_MACRO_ISO],
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[1],
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[Define to 1 if your compiler supports ISO C99 variadic macros]
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)]
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)dnl
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AS_VAR_POPDEF([VAR])dnl
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])
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