Since we're only using it on Linux now, just require poppler as a system dependency.

third_party/iconv/config/windows/iconv.h

Index: third_party/iconv/config/windows/iconv.h
diff --git a/third_party/iconv/config/windows/iconv.h b/third_party/iconv/config/windows/iconv.h
deleted file mode 100644
index dec499d8d2330a5878d52e6526269a3715fae3cc..0000000000000000000000000000000000000000
--- a/third_party/iconv/config/windows/iconv.h
+++ /dev/null
@@ -1,244 +0,0 @@
-/* Copyright (C) 1999-2003, 2005-2006, 2008-2011 Free Software Foundation, Inc.
-   This file is part of the GNU LIBICONV Library.
-
-   The GNU LIBICONV Library is free software; you can redistribute it
-   and/or modify it under the terms of the GNU Library General Public
-   License as published by the Free Software Foundation; either version 2
-   of the License, or (at your option) any later version.
-
-   The GNU LIBICONV Library is distributed in the hope that it will be
-   useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with the GNU LIBICONV Library; see the file COPYING.LIB.
-   If not, write to the Free Software Foundation, Inc., 51 Franklin Street,
-   Fifth Floor, Boston, MA 02110-1301, USA.  */
-
-/* When installed, this file is called "iconv.h". */
-
-#ifndef _LIBICONV_H
-#define _LIBICONV_H
-
-#define _LIBICONV_VERSION 0x010E    /* version number: (major<<8) + minor */
-
-#define LIBICONV_DLL_EXPORTED
-extern LIBICONV_DLL_EXPORTED  int _libiconv_version; /* Likewise */
-
-/* We would like to #include any system header file which could define
-   iconv_t, 1. in order to eliminate the risk that the user gets compilation
-   errors because some other system header file includes /usr/include/iconv.h
-   which defines iconv_t or declares iconv after this file, 2. when compiling
-   for LIBICONV_PLUG, we need the proper iconv_t type in order to produce
-   binary compatible code.
-   But gcc's #include_next is not portable. Thus, once libiconv's iconv.h
-   has been installed in /usr/local/include, there is no way any more to
-   include the original /usr/include/iconv.h. We simply have to get away
-   without it.
-   Ad 1. The risk that a system header file does
-   #include "iconv.h"  or  #include_next "iconv.h"
-   is small. They all do #include <iconv.h>.
-   Ad 2. The iconv_t type is a pointer type in all cases I have seen. (It
-   has to be a scalar type because (iconv_t)(-1) is a possible return value
-   from iconv_open().) */
-
-/* Define iconv_t ourselves. */
-#undef iconv_t
-#define iconv_t libiconv_t
-typedef void* iconv_t;
-
-/* Get size_t declaration.
-   Get wchar_t declaration if it exists. */
-#include <stddef.h>
-
-/* Get errno declaration and values. */
-#include <errno.h>
-/* Some systems, like SunOS 4, don't have EILSEQ. Some systems, like BSD/OS,
-   have EILSEQ in a different header.  On these systems, define EILSEQ
-   ourselves. */
-#ifndef EILSEQ
-#define EILSEQ @EILSEQ@
-#endif
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/* Allocates descriptor for code conversion from encoding ‘fromcode’ to
-   encoding ‘tocode’. */
-#ifndef LIBICONV_PLUG
-#define iconv_open libiconv_open
-#endif
-extern LIBICONV_DLL_EXPORTED iconv_t iconv_open (const char* tocode, const char* fromcode);
-
-/* Converts, using conversion descriptor ‘cd’, at most ‘*inbytesleft’ bytes
-   starting at ‘*inbuf’, writing at most ‘*outbytesleft’ bytes starting at
-   ‘*outbuf’.
-   Decrements ‘*inbytesleft’ and increments ‘*inbuf’ by the same amount.
-   Decrements ‘*outbytesleft’ and increments ‘*outbuf’ by the same amount. */
-#ifndef LIBICONV_PLUG
-#define iconv libiconv
-#endif
-extern LIBICONV_DLL_EXPORTED size_t iconv (iconv_t cd, const char* * inbuf, size_t *inbytesleft, char* * outbuf, size_t *outbytesleft);
-
-/* Frees resources allocated for conversion descriptor ‘cd’. */
-#ifndef LIBICONV_PLUG
-#define iconv_close libiconv_close
-#endif
-extern LIBICONV_DLL_EXPORTED int iconv_close (iconv_t cd);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-
-#ifndef LIBICONV_PLUG
-
-/* Nonstandard extensions. */
-
-#if USE_MBSTATE_T
-#if BROKEN_WCHAR_H
-/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
-   <wchar.h>.
-   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
-   included before <wchar.h>.  */
-#include <stddef.h>
-#include <stdio.h>
-#include <time.h>
-#endif
-#include <wchar.h>
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* A type that holds all memory needed by a conversion descriptor.
-   A pointer to such an object can be used as an iconv_t. */
-typedef struct {
-  void* dummy1[28];
-#if USE_MBSTATE_T
-  mbstate_t dummy2;
-#endif
-} iconv_allocation_t;
-
-/* Allocates descriptor for code conversion from encoding ‘fromcode’ to
-   encoding ‘tocode’ into preallocated memory. Returns an error indicator
-   (0 or -1 with errno set). */
-#define iconv_open_into libiconv_open_into
-extern LIBICONV_DLL_EXPORTED int iconv_open_into (const char* tocode, const char* fromcode,
-                            iconv_allocation_t* resultp);
-
-/* Control of attributes. */
-#define iconvctl libiconvctl
-extern LIBICONV_DLL_EXPORTED int iconvctl (iconv_t cd, int request, void* argument);
-
-/* Hook performed after every successful conversion of a Unicode character. */
-typedef void (*iconv_unicode_char_hook) (unsigned int uc, void* data);
-/* Hook performed after every successful conversion of a wide character. */
-typedef void (*iconv_wide_char_hook) (wchar_t wc, void* data);
-/* Set of hooks. */
-struct iconv_hooks {
-  iconv_unicode_char_hook uc_hook;
-  iconv_wide_char_hook wc_hook;
-  void* data;
-};
-
-/* Fallback function.  Invoked when a small number of bytes could not be
-   converted to a Unicode character.  This function should process all
-   bytes from inbuf and may produce replacement Unicode characters by calling
-   the write_replacement callback repeatedly.  */
-typedef void (*iconv_unicode_mb_to_uc_fallback)
-             (const char* inbuf, size_t inbufsize,
-              void (*write_replacement) (const unsigned int *buf, size_t buflen,
-                                         void* callback_arg),
-              void* callback_arg,
-              void* data);
-/* Fallback function.  Invoked when a Unicode character could not be converted
-   to the target encoding.  This function should process the character and
-   may produce replacement bytes (in the target encoding) by calling the
-   write_replacement callback repeatedly.  */
-typedef void (*iconv_unicode_uc_to_mb_fallback)
-             (unsigned int code,
-              void (*write_replacement) (const char *buf, size_t buflen,
-                                         void* callback_arg),
-              void* callback_arg,
-              void* data);
-#if HAVE_WCHAR_T
-/* Fallback function.  Invoked when a number of bytes could not be converted to
-   a wide character.  This function should process all bytes from inbuf and may
-   produce replacement wide characters by calling the write_replacement
-   callback repeatedly.  */
-typedef void (*iconv_wchar_mb_to_wc_fallback)
-             (const char* inbuf, size_t inbufsize,
-              void (*write_replacement) (const wchar_t *buf, size_t buflen,
-                                         void* callback_arg),
-              void* callback_arg,
-              void* data);
-/* Fallback function.  Invoked when a wide character could not be converted to
-   the target encoding.  This function should process the character and may
-   produce replacement bytes (in the target encoding) by calling the
-   write_replacement callback repeatedly.  */
-typedef void (*iconv_wchar_wc_to_mb_fallback)
-             (wchar_t code,
-              void (*write_replacement) (const char *buf, size_t buflen,
-                                         void* callback_arg),
-              void* callback_arg,
-              void* data);
-#else
-/* If the wchar_t type does not exist, these two fallback functions are never
-   invoked.  Their argument list therefore does not matter.  */
-typedef void (*iconv_wchar_mb_to_wc_fallback) ();
-typedef void (*iconv_wchar_wc_to_mb_fallback) ();
-#endif
-/* Set of fallbacks. */
-struct iconv_fallbacks {
-  iconv_unicode_mb_to_uc_fallback mb_to_uc_fallback;
-  iconv_unicode_uc_to_mb_fallback uc_to_mb_fallback;
-  iconv_wchar_mb_to_wc_fallback mb_to_wc_fallback;
-  iconv_wchar_wc_to_mb_fallback wc_to_mb_fallback;
-  void* data;
-};
-
-/* Requests for iconvctl. */
-#define ICONV_TRIVIALP            0  /* int *argument */
-#define ICONV_GET_TRANSLITERATE   1  /* int *argument */
-#define ICONV_SET_TRANSLITERATE   2  /* const int *argument */
-#define ICONV_GET_DISCARD_ILSEQ   3  /* int *argument */
-#define ICONV_SET_DISCARD_ILSEQ   4  /* const int *argument */
-#define ICONV_SET_HOOKS           5  /* const struct iconv_hooks *argument */
-#define ICONV_SET_FALLBACKS       6  /* const struct iconv_fallbacks *argument */
-
-/* Listing of locale independent encodings. */
-#define iconvlist libiconvlist
-extern LIBICONV_DLL_EXPORTED void iconvlist (int (*do_one) (unsigned int namescount,
-                                      const char * const * names,
-                                      void* data),
-                       void* data);
-
-/* Canonicalize an encoding name.
-   The result is either a canonical encoding name, or name itself. */
-extern LIBICONV_DLL_EXPORTED const char * iconv_canonicalize (const char * name);
-
-/* Support for relocatable packages.  */
-
-/* Sets the original and the current installation prefix of the package.
-   Relocation simply replaces a pathname starting with the original prefix
-   by the corresponding pathname with the current prefix instead.  Both
-   prefixes should be directory names without trailing slash (i.e. use ""
-   instead of "/").  */
-extern LIBICONV_DLL_EXPORTED void libiconv_set_relocation_prefix (const char *orig_prefix,
-                                            const char *curr_prefix);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
-
-#endif /* _LIBICONV_H */