load_lib libvtv-dg.exp
load_gcc_lib gcc-dg.exp

global VTV_FLAGS
set VTV_FLAGS [list {-O0} {-O2}]

libvtv_init c++

set shlib_ext [get_shlib_extension]
set lang_link_flags "-shared-libgcc -lstdc++"
set lang_test_file_found 0
set lang_library_path "../libstdc++-v3/src/.libs"

dg-init

set blddir [lookfor_file [get_multilibs] libvtv]

# Find the correct libstdc++ library to use.

if { $blddir != "" } {
    # Look for a static libstdc++ first.
    if [file exists "${blddir}/${lang_library_path}/libstdc++.a"] {
	set lang_test_file "${lang_library_path}/libstdc++.a"
	set lang_test_file_found 1
	# We may have a shared only build, so look for a shared libstdc++.
    } elseif [file exists "${blddir}/${lang_library_path}/libstdc++.${shlib_ext}"] {
	set lang_test_file "${lang_library_path}/libstdc++.${shlib_ext}"
	set lang_test_file_found 1
    } else {
	puts "looking for ${blddir}/${lang_library_path}/libstdc++.${shlib_ext}"
	puts "No libstdc++ library found, will not execute c++ tests"
    }
} elseif { [info exists GXX_UNDER_TEST] } {
    set lang_test_file_found 1
    # Needs to exist for libvtv.exp.
    set lang_test_file ""
} else {
    puts "GXX_UNDER_TEST not defined, will not execute c++ tests"
}


global srcdir

if { $lang_test_file_found } {
    # Set the path for finding libstdc++.
    if { $blddir != "" } {
	set ld_library_path "$always_ld_library_path:${blddir}/${lang_library_path}"
    } else {
	set ld_library_path "$always_ld_library_path"
    }
    append ld_library_path [gcc-set-multilib-library-path $GCC_UNDER_TEST]
    set_ld_library_path_env_vars

    # Make sure we can find the libstdc++ header files.
    set flags_file "${blddir}/../libstdc++-v3/scripts/testsuite_flags"
    if { [file exists $flags_file] } {
	set libstdcxx_includes [exec sh $flags_file --build-includes]
    } else {
	set libstdcxx_includes ""
    }

    # Run the tests with -fvtable-verify=std
    foreach flags $VTV_FLAGS {
	foreach srcfile [lsort [glob -nocomplain ${srcdir}/libvtv.mt.cc/*.cc]] {
	    dg-runtest $srcfile "$flags -fvtable-verify=std -lpthread" $libstdcxx_includes
	}
    }
}