/usr/share/dune/aclocal/cxx0x_static_assert.m4 is in libdune-common-dev 2.2.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | AC_DEFUN([STATIC_ASSERT_CHECK],[
AC_CACHE_CHECK([whether static_assert is supported], dune_cv_static_assert_support, [
AC_REQUIRE([AC_PROG_CXX])
AC_REQUIRE([GXX0X])
AC_LANG_PUSH([C++])
AC_TRY_COMPILE([],[static_assert(true,"MSG")],
dune_cv_static_assert_support=yes,
dune_cv_static_assert_support=no)
AC_LANG_POP
])
if test "x$dune_cv_static_assert_support" = xyes; then
AC_DEFINE(HAVE_STATIC_ASSERT, 1, [Define to 1 if static_assert is supported])
fi
])
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