Files:
tests/unistr/test-u16-chr.c
tests/unistr/test-chr.h
tests/zerosize-ptr.h
tests/macros.h
m4/mmap-anon.m4

Depends-on:
extensions
getpagesize
unistr/u16-set
unistr/u32-set
unistr/u32-to-u16

configure.ac:
gl_FUNC_MMAP_ANON
AC_CHECK_HEADERS_ONCE([sys/mman.h])
AC_CHECK_FUNCS_ONCE([mprotect])

Makefile.am:
TESTS += test-u16-chr
check_PROGRAMS += test-u16-chr
test_u16_chr_SOURCES = unistr/test-u16-chr.c
test_u16_chr_LDADD = $(LDADD) $(LIBUNISTRING)