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.

Description:
fwritable() function: Determine whether a FILE stream supports writing.

Files:
lib/fwritable.h
lib/fwritable.c
lib/stdio-impl.h
m4/fwritable.m4

Depends-on:
stdbool

configure.ac:
gl_FUNC_FWRITABLE
if test $ac_cv_func___fwritable = no; then
  AC_LIBOBJ([fwritable])
fi

Makefile.am:

Include:
"fwritable.h"

License:
LGPL

Maintainer:
Eric Blake