Fix build error when building a shared libunistring on Android. * tests/uninorm/test-nfc.c (n): Don't define on Android. (main): Add 'volatile', to defeat a GCC optimization that would eliminate the reference. * tests/uninorm/test-nfd.c (n): Don't define on Android. (main): Add 'volatile', to defeat a GCC optimization that would eliminate the reference. * tests/uninorm/test-nfkc.c (n): Don't define on Android. (main): Add 'volatile', to defeat a GCC optimization that would eliminate the reference. * tests/uninorm/test-nfkd.c (n): Don't define on Android. (main): Add 'volatile', to defeat a GCC optimization that would eliminate the reference.

Files:
tests/macros.h
tests/signature.h
tests/test-getopt-posix.c
tests/test-getopt-main.h
tests/test-getopt.h

Depends-on:
dup2
setenv
stdbool
unistd
unsetenv

configure.ac:

Makefile.am:
TESTS += test-getopt-posix
check_PROGRAMS += test-getopt-posix
test_getopt_posix_LDADD = $(LDADD) $(LIBINTL)