+2019-01-24 Bruno Haible <bruno@clisp.org>
+
+ fdatasync: Fix compilation error on Android 4.3.
+ * m4/fdatasync.m4 (gl_FUNC_FDATASYNC): On platforms other than Solaris,
+ test whether fdatasync() exists.
+
2019-01-24 Bruno Haible <bruno@clisp.org>
unlinkat: Fix compilation error on Android 4.3.
-# fdatasync.m4 serial 4
+# fdatasync.m4 serial 5
dnl Copyright (C) 2008-2019 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
AC_DEFUN([gl_FUNC_FDATASYNC],
[
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+ AC_REQUIRE([AC_CANONICAL_HOST])
dnl Using AC_CHECK_FUNCS_ONCE would break our subsequent AC_SEARCH_LIBS
AC_CHECK_DECLS_ONCE([fdatasync])
HAVE_FDATASYNC=0
fi
else
- dnl Solaris <= 2.6 has fdatasync() in libposix4.
- dnl Solaris 7..10 has it in librt.
- gl_saved_libs=$LIBS
- AC_SEARCH_LIBS([fdatasync], [rt posix4],
- [test "$ac_cv_search_fdatasync" = "none required" ||
- LIB_FDATASYNC=$ac_cv_search_fdatasync])
- LIBS=$gl_saved_libs
+ case "$host_os" in
+ solaris*)
+ dnl Solaris <= 2.6 has fdatasync() in libposix4.
+ dnl Solaris 7..10 has it in librt.
+ gl_saved_libs=$LIBS
+ AC_SEARCH_LIBS([fdatasync], [rt posix4],
+ [test "$ac_cv_search_fdatasync" = "none required" ||
+ LIB_FDATASYNC=$ac_cv_search_fdatasync])
+ LIBS=$gl_saved_libs
+ ;;
+ *)
+ dnl Android 4.3 does not have fdatasync but declares it.
+ AC_CHECK_FUNCS([fdatasync])
+ if test $ac_cv_func_fdatasync = no; then
+ HAVE_FDATASYNC=0
+ fi
+ ;;
+ esac
fi
])