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author | Ludovic Courtès <ludo@gnu.org> | 2009-11-15 20:16:40 +0100 |
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committer | Ludovic Courtès <ludo@gnu.org> | 2009-11-16 09:23:46 +0100 |
commit | 8912421cf3829a4fd65877fd1255125c191f6f89 (patch) | |
tree | 6b89fecf0738a1f80792bbe7453730f7882f1d54 /m4/canonicalize.m4 | |
parent | 3fe87cf7aff396d7bd993aa009f48eb8afd6c1cd (diff) | |
download | guile-8912421cf3829a4fd65877fd1255125c191f6f89.tar.gz |
Use Gnulib's `inet_ntop' and `inet_pton' modules.
* m4/gnulib-cache.m4: Add `inet_ntop' and `inet_pton'.
* configure.ac: Don't check for `inet_ntop' and `inet_pton'.
* libguile/socket.c (scm_inet_pton, scm_inet_ntop): Compile regardless
of `HAVE_INET_PTON' and `HAVE_INET_NTOP' respectively.
* libguile/filesys.c: Use <stdlib.h> instead of <canonicalize.h>.
Diffstat (limited to 'm4/canonicalize.m4')
-rw-r--r-- | m4/canonicalize.m4 | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/m4/canonicalize.m4 b/m4/canonicalize.m4 new file mode 100644 index 000000000..119ebb75b --- /dev/null +++ b/m4/canonicalize.m4 @@ -0,0 +1,81 @@ +# canonicalize.m4 serial 16 + +dnl Copyright (C) 2003-2007, 2009 Free Software Foundation, Inc. + +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +# Provides canonicalize_file_name and canonicalize_filename_mode, but does +# not provide or fix realpath. +AC_DEFUN([gl_FUNC_CANONICALIZE_FILENAME_MODE], +[ + AC_LIBOBJ([canonicalize]) + + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_FUNCS_ONCE([canonicalize_file_name]) + AC_REQUIRE([gl_DOUBLE_SLASH_ROOT]) + AC_REQUIRE([gl_FUNC_REALPATH_WORKS]) + if test $ac_cv_func_canonicalize_file_name = no; then + HAVE_CANONICALIZE_FILE_NAME=0 + elif test "$gl_cv_func_realpath_works" != yes; then + REPLACE_CANONICALIZE_FILE_NAME=1 + fi +]) + +# Provides canonicalize_file_name and realpath. +AC_DEFUN([gl_CANONICALIZE_LGPL], +[ + AC_REQUIRE([gl_CANONICALIZE_LGPL_SEPARATE]) + if test $ac_cv_func_canonicalize_file_name = no; then + HAVE_CANONICALIZE_FILE_NAME=0 + AC_LIBOBJ([canonicalize-lgpl]) + if test $ac_cv_func_realpath = no; then + HAVE_REALPATH=0 + elif test "$gl_cv_func_realpath_works" != yes; then + REPLACE_REALPATH=1 + fi + elif test "$gl_cv_func_realpath_works" != yes; then + AC_LIBOBJ([canonicalize-lgpl]) + REPLACE_REALPATH=1 + REPLACE_CANONICALIZE_FILE_NAME=1 + fi +]) + +# Like gl_CANONICALIZE_LGPL, except prepare for separate compilation +# (no AC_LIBOBJ). +AC_DEFUN([gl_CANONICALIZE_LGPL_SEPARATE], +[ + AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) + AC_CHECK_FUNCS_ONCE([canonicalize_file_name getcwd readlink]) + AC_REQUIRE([gl_DOUBLE_SLASH_ROOT]) + AC_REQUIRE([gl_FUNC_REALPATH_WORKS]) + AC_CHECK_HEADERS_ONCE([sys/param.h]) +]) + +# Check whether realpath works. Assume that if a platform has both +# realpath and canonicalize_file_name, but the former is broken, then +# so is the latter. +AC_DEFUN([gl_FUNC_REALPATH_WORKS], +[ + AC_CHECK_FUNCS_ONCE([realpath]) + AC_CACHE_CHECK([whether realpath works], [gl_cv_func_realpath_works], [ + touch conftest.a + AC_RUN_IFELSE([ + AC_LANG_PROGRAM([[ + #include <stdlib.h> + ]], [[ + char *name1 = realpath ("conftest.a", NULL); + char *name2 = realpath ("conftest.b/../conftest.a", NULL); + char *name3 = realpath ("conftest.a/", NULL); + return !(name1 && *name1 == '/' && !name2 && !name3); + ]]) + ], [gl_cv_func_realpath_works=yes], [gl_cv_func_realpath_works=no], + [gl_cv_func_realpath_works="guessing no"]) + ]) + if test "$gl_cv_func_realpath_works" = yes; then + AC_DEFINE([FUNC_REALPATH_WORKS], [1], [Define to 1 if realpath() + can malloc memory, always gives an absolute path, and handles + trailing slash correctly.]) + fi +]) |