NEWS.stable: log cherry-pick [e446f25]->[c092018] relocatable-shell: Update suggested...

[gnulib.git] / m4 / iconv_open.m4

diff --git a/m4/iconv_open.m4 b/m4/iconv_open.m4
index 7ed808a..e0bfd72 100644 (file)
--- a/m4/iconv_open.m4
+++ b/m4/iconv_open.m4
@@ -1,5 +1,5 @@
-# iconv_open.m4 serial 1
-dnl Copyright (C) 2007 Free Software Foundation, Inc.
+# iconv_open.m4 serial 14
+dnl Copyright (C) 2007-2014 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.
@@ -10,31 +10,47 @@ AC_DEFUN([gl_FUNC_ICONV_OPEN],
   AC_REQUIRE([AC_CANONICAL_HOST])
   AC_REQUIRE([gl_ICONV_H_DEFAULTS])
   if test "$am_cv_func_iconv" = yes; then
+    dnl Provide the <iconv.h> override, for the sake of the C++ aliases.
+    gl_REPLACE_ICONV_H
     dnl Test whether iconv_open accepts standardized encoding names.
     dnl We know that GNU libiconv and GNU libc do.
     AC_EGREP_CPP([gnu_iconv], [
       #include <iconv.h>
-      #if defined _LIBICONV_VERSION || defined __GLIBC__
+      #if defined _LIBICONV_VERSION || (defined __GLIBC__ && !defined __UCLIBC__)
        gnu_iconv
       #endif
       ], [gl_func_iconv_gnu=yes], [gl_func_iconv_gnu=no])
     if test $gl_func_iconv_gnu = no; then
       iconv_flavor=
       case "$host_os" in
-        aix*)  iconv_flavor=ICONV_FLAVOR_AIX ;;
-        irix*) iconv_flavor=ICONV_FLAVOR_IRIX ;;
-        hpux*) iconv_flavor=ICONV_FLAVOR_HPUX ;;
-        osf*)  iconv_flavor=ICONV_FLAVOR_OSF ;;
+        aix*)     iconv_flavor=ICONV_FLAVOR_AIX ;;
+        irix*)    iconv_flavor=ICONV_FLAVOR_IRIX ;;
+        hpux*)    iconv_flavor=ICONV_FLAVOR_HPUX ;;
+        osf*)     iconv_flavor=ICONV_FLAVOR_OSF ;;
+        solaris*) iconv_flavor=ICONV_FLAVOR_SOLARIS ;;
       esac
       if test -n "$iconv_flavor"; then
         AC_DEFINE_UNQUOTED([ICONV_FLAVOR], [$iconv_flavor],
           [Define to a symbolic name denoting the flavor of iconv_open()
            implementation.])
-        REPLACE_ICONV_OPEN=1
-        AC_LIBOBJ([iconv_open])
-        ICONV_H='iconv.h'
+        gl_REPLACE_ICONV_OPEN
       fi
     fi
+    m4_ifdef([gl_FUNC_ICONV_OPEN_UTF_SUPPORT], [
+      gl_FUNC_ICONV_OPEN_UTF_SUPPORT
+      if test $gl_cv_func_iconv_supports_utf = no; then
+        REPLACE_ICONV_UTF=1
+        AC_DEFINE([REPLACE_ICONV_UTF], [1],
+          [Define if the iconv() functions are enhanced to handle the UTF-{16,32}{BE,LE} encodings.])
+        REPLACE_ICONV=1
+        gl_REPLACE_ICONV_OPEN
+      fi
+    ])
   fi
 ])
 
+AC_DEFUN([gl_REPLACE_ICONV_OPEN],
+[
+  gl_REPLACE_ICONV_H
+  REPLACE_ICONV_OPEN=1
+])