HCoop / bpt / guile.git / blame
| Commit | Line | Data |
|---|---|---|
| 8912421c LC |
1 | # canonicalize.m4 serial 16 |
| 2 | ||
| 61cd9dc9 | 3 | dnl Copyright (C) 2003-2007, 2009-2010 Free Software Foundation, Inc. |
| 8912421c LC |
4 | |
| 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 | # Provides canonicalize_file_name and canonicalize_filename_mode, but does | |
| 10 | # not provide or fix realpath. | |
| 11 | AC_DEFUN([gl_FUNC_CANONICALIZE_FILENAME_MODE], | |
| 12 | [ | |
| 13 | AC_LIBOBJ([canonicalize]) | |
| 14 | ||
| 15 | AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) | |
| 16 | AC_CHECK_FUNCS_ONCE([canonicalize_file_name]) | |
| 17 | AC_REQUIRE([gl_DOUBLE_SLASH_ROOT]) | |
| 18 | AC_REQUIRE([gl_FUNC_REALPATH_WORKS]) | |
| 19 | if test $ac_cv_func_canonicalize_file_name = no; then | |
| 20 | HAVE_CANONICALIZE_FILE_NAME=0 | |
| 21 | elif test "$gl_cv_func_realpath_works" != yes; then | |
| 22 | REPLACE_CANONICALIZE_FILE_NAME=1 | |
| 23 | fi | |
| 24 | ]) | |
| 25 | ||
| 26 | # Provides canonicalize_file_name and realpath. | |
| 27 | AC_DEFUN([gl_CANONICALIZE_LGPL], | |
| 28 | [ | |
| 29 | AC_REQUIRE([gl_CANONICALIZE_LGPL_SEPARATE]) | |
| 30 | if test $ac_cv_func_canonicalize_file_name = no; then | |
| 31 | HAVE_CANONICALIZE_FILE_NAME=0 | |
| 32 | AC_LIBOBJ([canonicalize-lgpl]) | |
| 33 | if test $ac_cv_func_realpath = no; then | |
| 34 | HAVE_REALPATH=0 | |
| 35 | elif test "$gl_cv_func_realpath_works" != yes; then | |
| 36 | REPLACE_REALPATH=1 | |
| 37 | fi | |
| 38 | elif test "$gl_cv_func_realpath_works" != yes; then | |
| 39 | AC_LIBOBJ([canonicalize-lgpl]) | |
| 40 | REPLACE_REALPATH=1 | |
| 41 | REPLACE_CANONICALIZE_FILE_NAME=1 | |
| 42 | fi | |
| 43 | ]) | |
| 44 | ||
| 45 | # Like gl_CANONICALIZE_LGPL, except prepare for separate compilation | |
| 46 | # (no AC_LIBOBJ). | |
| 47 | AC_DEFUN([gl_CANONICALIZE_LGPL_SEPARATE], | |
| 48 | [ | |
| 49 | AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) | |
| 50 | AC_CHECK_FUNCS_ONCE([canonicalize_file_name getcwd readlink]) | |
| 51 | AC_REQUIRE([gl_DOUBLE_SLASH_ROOT]) | |
| 52 | AC_REQUIRE([gl_FUNC_REALPATH_WORKS]) | |
| 53 | AC_CHECK_HEADERS_ONCE([sys/param.h]) | |
| 54 | ]) | |
| 55 | ||
| 56 | # Check whether realpath works. Assume that if a platform has both | |
| 57 | # realpath and canonicalize_file_name, but the former is broken, then | |
| 58 | # so is the latter. | |
| 59 | AC_DEFUN([gl_FUNC_REALPATH_WORKS], | |
| 60 | [ | |
| 61 | AC_CHECK_FUNCS_ONCE([realpath]) | |
| 62 | AC_CACHE_CHECK([whether realpath works], [gl_cv_func_realpath_works], [ | |
| 63 | touch conftest.a | |
| 64 | AC_RUN_IFELSE([ | |
| 65 | AC_LANG_PROGRAM([[ | |
| 66 | #include <stdlib.h> | |
| 67 | ]], [[ | |
| 68 | char *name1 = realpath ("conftest.a", NULL); | |
| 69 | char *name2 = realpath ("conftest.b/../conftest.a", NULL); | |
| 70 | char *name3 = realpath ("conftest.a/", NULL); | |
| 71 | return !(name1 && *name1 == '/' && !name2 && !name3); | |
| 72 | ]]) | |
| 73 | ], [gl_cv_func_realpath_works=yes], [gl_cv_func_realpath_works=no], | |
| 74 | [gl_cv_func_realpath_works="guessing no"]) | |
| 75 | ]) | |
| 76 | if test "$gl_cv_func_realpath_works" = yes; then | |
| 77 | AC_DEFINE([FUNC_REALPATH_WORKS], [1], [Define to 1 if realpath() | |
| 78 | can malloc memory, always gives an absolute path, and handles | |
| 79 | trailing slash correctly.]) | |
| 80 | fi | |
| 81 | ]) |