w32: Replace libiconv DLL by iconv feature of libgpg-error.

* configure.ac: Do nor require libiconv for W32.
* common/utf8conv.c [W32]: Do not incluce iconv.h.  Request
libgpg-error iconv macros.
(jnlib_iconv): Use ICONV_CONST macro.
* build-aux/speedo/w32/inst.nsi [!WITH_GUI]: Do not install libiconv.
* build-aux/speedo.mk (speedo_spkgs) [!WITH_GUI]: Likewise.

Signed-off-by: Werner Koch <wk@gnupg.org>

build-aux/speedo.mk

@@ -172,9 +172,9 @@ speedo_spkgs  = \
 
 ifeq ($(TARGETOS),w32)
 speedo_spkgs += \
-	zlib bzip2 adns sqlite libiconv
+	zlib bzip2 adns sqlite
 ifeq ($(WITH_GUI),1)
-speedo_spkgs += gettext
+speedo_spkgs += gettext libiconv
 endif
 endif
 

build-aux/speedo/w32/inst.nsi

@@ -633,11 +633,6 @@ Section "-libgpg-error" SEC_libgpg_error
   File include/gpg-error.h
 SectionEnd
 
-Section "-libiconv" SEC_libiconv
-  SetOutPath "$INSTDIR\bin"
-  File bin/libiconv-2.dll
-SectionEnd
-
 Section "-zlib" SEC_zlib
   SetOutPath "$INSTDIR\bin"
   File bin/zlib1.dll
@@ -701,6 +696,11 @@ Section "-gpgme" SEC_gpgme
 SectionEnd
 
 !ifdef WITH_GUI
+Section "-libiconv" SEC_libiconv
+  SetOutPath "$INSTDIR\bin"
+  File bin/libiconv-2.dll
+SectionEnd
+
 Section "-gettext" SEC_gettext
   SetOutPath "$INSTDIR\bin"
   File bin/libintl-8.dll
@@ -1054,6 +1054,10 @@ Section "-un.gettext"
   Delete "$INSTDIR\bin\libintl-8.dll"
 SectionEnd
 
+Section "-un.libiconv"
+  Delete "$INSTDIR\bin\libiconv-2.dll"
+SectionEnd
+
 Section "-un.gpgme"
   Delete "$INSTDIR\bin\libgpgme-11.dll"
   Delete "$INSTDIR\bin\libgpgme-glib-11.dll"
@@ -1097,10 +1101,6 @@ Section "-un.zlib"
   Delete "$INSTDIR\bin\zlib1.dll"
 SectionEnd
 
-Section "-un.libiconv"
-  Delete "$INSTDIR\bin\libiconv-2.dll"
-SectionEnd
-
 Section "-un.libgpg-error"
   Delete "$INSTDIR\bin\libgpg-error-0.dll"
   Delete "$INSTDIR\lib\libgpg-error.imp"

common/utf8conv.c

@@ -38,10 +38,17 @@
 #include <langinfo.h>
 #endif
 #include <errno.h>
-#ifndef HAVE_ANDROID_SYSTEM
+
+#if HAVE_W32_SYSTEM
+# /* Tell libgpg-error to provide the iconv macros.  */
+# define GPGRT_ENABLE_W32_ICONV_MACROS 1
+#elif HAVE_ANDROID_SYSTEM
+# /* No iconv support.  */
+#else
 # include <iconv.h>
 #endif
 
+
 #include "util.h"
 #include "common-defs.h"
 #include "i18n.h"
@@ -244,8 +251,8 @@ set_native_charset (const char *newset)
      as Latin-1.  This makes sense because many Unix system don't have
      their locale set up properly and thus would get annoying error
      messages and we have to handle all the "bug" reports. Latin-1 has
-     always been the character set used for 8 bit characters on Unix
+     traditionally been the character set used for 8 bit characters on
-     systems. */
+     Unix systems. */
   if ( !*newset
        || !ascii_strcasecmp (newset, "8859-1" )
        || !ascii_strcasecmp (newset, "646" )
@@ -700,7 +707,8 @@ jnlib_iconv (jnlib_iconv_t cd,
              const char **inbuf, size_t *inbytesleft,
              char **outbuf, size_t *outbytesleft)
 {
-  return iconv ((iconv_t)cd, (char**)inbuf, inbytesleft, outbuf, outbytesleft);
+  return iconv ((iconv_t)cd, (ICONV_CONST char**)inbuf, inbytesleft,
+                outbuf, outbytesleft);
 }
 
 /* Wrapper function for iconv_close, required for W32 as we dlopen that

configure.ac

@@ -47,8 +47,9 @@ m4_define([mym4_version],      m4_argn(4, mym4_verslist))
 m4_define([mym4_revision],     m4_argn(7, mym4_verslist))
 m4_define([mym4_revision_dec], m4_argn(8, mym4_verslist))
 m4_esyscmd([echo ]mym4_version[>VERSION])
-AC_INIT([mym4_package],[mym4_version], [http://bugs.gnupg.org])
+AC_INIT([mym4_package],[mym4_version], [https://bugs.gnupg.org])
 
+# Note that for Windows we require version 1.22
 NEED_GPG_ERROR_VERSION=1.21
 
 NEED_LIBGCRYPT_API=1
@@ -639,6 +640,7 @@ case "${host}" in
                    we use a simplified version of gettext])
         have_dosish_system=yes
         have_w32_system=yes
+        require_iconv=no
         run_tests=no
         use_ldapwrapper=no  # Fixme: Do this only for CE.
         case "${host}" in