From a64a253794ac64cb40befee54db53bde17dd0d49 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 7 Nov 2018 13:19:29 +0100 Subject: New upstream version 1.11.0+dfsg Signed-off-by: Daniel Baumann --- build/m4/ax_c__generic.m4 | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 build/m4/ax_c__generic.m4 (limited to 'build/m4/ax_c__generic.m4') diff --git a/build/m4/ax_c__generic.m4 b/build/m4/ax_c__generic.m4 new file mode 100644 index 000000000..0c4dd52c6 --- /dev/null +++ b/build/m4/ax_c__generic.m4 @@ -0,0 +1,28 @@ +# https://lists.gnu.org/archive/html/autoconf-commit/2012-12/msg00004.html +# AC_C__GENERIC +# ------------- +# Define HAVE_C__GENERIC if _Generic works, a la C11. +AN_IDENTIFIER([_Generic], [AC_C__GENERIC]) +AC_DEFUN([AC_C__GENERIC], +[AC_CACHE_CHECK([for _Generic], ac_cv_c__Generic, +[AC_COMPILE_IFELSE( + [AC_LANG_SOURCE( + [[int + main (int argc, char **argv) + { + int a = _Generic (argc, int: argc = 1); + int *b = &_Generic (argc, default: argc); + char ***c = _Generic (argv, int: argc, default: argv ? &argv : 0); + _Generic (1 ? 0 : b, int: a, default: b) = &argc; + _Generic (a = 1, default: a) = 3; + return a + !b + !c; + } + ]])], + [ac_cv_c__Generic=yes], + [ac_cv_c__Generic=no])]) +if test $ac_cv_c__Generic = yes; then + AC_DEFINE([HAVE_C__GENERIC], 1, + [Define to 1 if C11-style _Generic works.]) +fi +])# AC_C__GENERIC + -- cgit v1.2.3