Files:
tests/test-uchar-c++.cc
tests/test-uchar-c++2.cc
tests/signature.h

Status:
c++-test

Depends-on:
ansi-c++-opt

configure.ac:
AC_REQUIRE([gl_ANSI_CXX])
if test "$CXX" != no; then
  dnl On FreeBSD 12, 'c++' defines __cplusplus to 201402, although it does not
  dnl have the <cuchar> header file from C++11.
  AC_CACHE_CHECK([whether the C++ compiler has <cuchar>],
    [gl_cv_cxxheader_cuchar],
    [AC_LANG_PUSH([C++])
     AC_COMPILE_IFELSE(
       [AC_LANG_PROGRAM(
          [[#include <cuchar>]],
          [[]])
       ],
       [gl_cv_cxxheader_cuchar=yes],
       [gl_cv_cxxheader_cuchar=no])
     AC_LANG_POP([C++])
    ])
else
  gl_cv_cxxheader_cuchar=no
fi
gl_CONDITIONAL([CXX_HAVE_CUCHAR], [test $gl_cv_cxxheader_cuchar != no])

Makefile.am:
if ANSICXX
TESTS += test-uchar-c++
check_PROGRAMS += test-uchar-c++
test_uchar_c___SOURCES = test-uchar-c++.cc
if CXX_HAVE_CUCHAR
test_uchar_c___SOURCES += test-uchar-c++2.cc
endif
test_uchar_c___LDADD = $(LDADD) $(LIBUNISTRING) $(MBRTOWC_LIB)
endif