Mercurial > gnulib
diff m4/fdatasync.m4 @ 40132:6bcaf5dcb02b
fdatasync: Fix compilation error on Android 4.3.
* m4/fdatasync.m4 (gl_FUNC_FDATASYNC): On platforms other than Solaris,
test whether fdatasync() exists.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Fri, 25 Jan 2019 00:15:50 +0100 |
| parents | b06060465f09 |
| children |
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--- a/m4/fdatasync.m4 Fri Jan 25 00:08:52 2019 +0100 +++ b/m4/fdatasync.m4 Fri Jan 25 00:15:50 2019 +0100 @@ -1,4 +1,4 @@ -# 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, @@ -7,6 +7,7 @@ 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]) @@ -21,12 +22,23 @@ 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 ])