HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| 8aeb5be9 | 1 | # serial 5 |
| ae0d7250 PE |
2 | # See if we need to provide symlink replacement. |
| 3 | ||
| 4 | dnl Copyright (C) 2009-2011 Free Software Foundation, Inc. | |
| 5 | dnl This file is free software; the Free Software Foundation | |
| 6 | dnl gives unlimited permission to copy and/or distribute it, | |
| 7 | dnl with or without modifications, as long as this notice is preserved. | |
| 8 | ||
| 9 | # Written by Eric Blake. | |
| 10 | ||
| 11 | AC_DEFUN([gl_FUNC_SYMLINK], | |
| 12 | [ | |
| 13 | AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) | |
| 14 | AC_CHECK_FUNCS_ONCE([symlink]) | |
| 15 | dnl The best we can do on mingw is provide a dummy that always fails, so | |
| 16 | dnl that compilation can proceed with fewer ifdefs. On FreeBSD 7.2, AIX 7.1, | |
| 17 | dnl and Solaris 9, we want to fix a bug with trailing slash handling. | |
| 18 | if test $ac_cv_func_symlink = no; then | |
| 19 | HAVE_SYMLINK=0 | |
| ae0d7250 PE |
20 | else |
| 21 | AC_CACHE_CHECK([whether symlink handles trailing slash correctly], | |
| 22 | [gl_cv_func_symlink_works], | |
| 23 | [AC_RUN_IFELSE( | |
| 24 | [AC_LANG_PROGRAM( | |
| 25 | [[#include <unistd.h> | |
| 26 | ]], | |
| 27 | [[int result = 0; | |
| 28 | if (!symlink ("a", "conftest.link/")) | |
| 29 | result |= 1; | |
| 30 | if (symlink ("conftest.f", "conftest.lnk2")) | |
| 31 | result |= 2; | |
| 32 | else if (!symlink ("a", "conftest.lnk2/")) | |
| 33 | result |= 4; | |
| 34 | return result; | |
| 35 | ]])], | |
| 36 | [gl_cv_func_symlink_works=yes], [gl_cv_func_symlink_works=no], | |
| 37 | [gl_cv_func_symlink_works="guessing no"]) | |
| 38 | rm -f conftest.f conftest.link conftest.lnk2]) | |
| 39 | if test "$gl_cv_func_symlink_works" != yes; then | |
| 40 | REPLACE_SYMLINK=1 | |
| ae0d7250 PE |
41 | fi |
| 42 | fi | |
| 43 | ]) |