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Diff for /embedaddon/libiconv/srcm4/readlink.m4 between versions 1.1 and 1.1.1.3

version 1.1, 2012/02/21 22:57:49 version 1.1.1.3, 2021/03/17 13:38:46
Line 1 Line 1
# readlink.m4 serial 5# readlink.m4 serial 14
dnl Copyright (C) 2003, 2007, 2009 Free Software Foundation, Inc.dnl Copyright (C) 2003, 2007, 2009-2019 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation  dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,  dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.  dnl with or without modifications, as long as this notice is preserved.
Line 7  dnl with or without modifications, as long as this not Line 7  dnl with or without modifications, as long as this not
 AC_DEFUN([gl_FUNC_READLINK],  AC_DEFUN([gl_FUNC_READLINK],
 [  [
   AC_REQUIRE([gl_UNISTD_H_DEFAULTS])    AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
     AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
   AC_CHECK_FUNCS_ONCE([readlink])    AC_CHECK_FUNCS_ONCE([readlink])
   if test $ac_cv_func_readlink = no; then    if test $ac_cv_func_readlink = no; then
     HAVE_READLINK=0      HAVE_READLINK=0
    AC_LIBOBJ([readlink])  else
    gl_PREREQ_READLINK    AC_CACHE_CHECK([whether readlink signature is correct],
       [gl_cv_decl_readlink_works],
       [AC_COMPILE_IFELSE(
          [AC_LANG_PROGRAM(
            [[#include <unistd.h>
       /* Cause compilation failure if original declaration has wrong type.  */
       ssize_t readlink (const char *, char *, size_t);]])],
          [gl_cv_decl_readlink_works=yes], [gl_cv_decl_readlink_works=no])])
     dnl Solaris 9 ignores trailing slash.
     dnl FreeBSD 7.2 dereferences only one level of links with trailing slash.
     AC_CACHE_CHECK([whether readlink handles trailing slash correctly],
       [gl_cv_func_readlink_works],
       [# We have readlink, so assume ln -s works.
        ln -s conftest.no-such conftest.link
        ln -s conftest.link conftest.lnk2
        AC_RUN_IFELSE(
          [AC_LANG_PROGRAM(
            [[#include <unistd.h>
 ]], [[char buf[20];
       return readlink ("conftest.lnk2/", buf, sizeof buf) != -1;]])],
          [gl_cv_func_readlink_works=yes], [gl_cv_func_readlink_works=no],
          [case "$host_os" in
                              # Guess yes on Linux systems.
             linux-* | linux) gl_cv_func_readlink_works="guessing yes" ;;
                              # Guess yes on glibc systems.
             *-gnu* | gnu*)   gl_cv_func_readlink_works="guessing yes" ;;
                              # If we don't know, assume the worst.
             *)               gl_cv_func_readlink_works="guessing no" ;;
           esac
          ])
       rm -f conftest.link conftest.lnk2])
     case "$gl_cv_func_readlink_works" in
       *yes)
         if test "$gl_cv_decl_readlink_works" != yes; then
           REPLACE_READLINK=1
         fi
         ;;
       *)
         AC_DEFINE([READLINK_TRAILING_SLASH_BUG], [1], [Define to 1 if readlink
           fails to recognize a trailing slash.])
         REPLACE_READLINK=1
         ;;
     esac
   fi    fi
 ])  ])
   
# Like gl_FUNC_READLINK, except prepare for separate compilation (no AC_LIBOBJ).# Like gl_FUNC_READLINK, except prepare for separate compilation
 # (no REPLACE_READLINK, no AC_LIBOBJ).
 AC_DEFUN([gl_FUNC_READLINK_SEPARATE],  AC_DEFUN([gl_FUNC_READLINK_SEPARATE],
 [  [
   AC_CHECK_FUNCS_ONCE([readlink])    AC_CHECK_FUNCS_ONCE([readlink])
Removed from v.1.1  
changed lines
  Added in v.1.1.1.3

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