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+# Public macros for the teTeX / TeX Live (TL) tree.
+# Copyright (C) 1998 - 2008 Jin-Hwan Cho <chofchof@ktug.or.kr>
+# Copyright (C) 2008 - 2009 Peter Breitenlohner <tex-live@tug.org>
+#
+# This file is free software; the copyright holders
+# give unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 2
+
+# CHO_CHECK_ZLIB
+# --------------
+# Check for zlib
+AC_DEFUN([CHO_CHECK_ZLIB],
+[AC_CACHE_CHECK([for zlib header files and library],
+ [cho_cv_have_zlib],
+ [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <zlib.h>]],
+ [[z_stream p;]])],
+ [cho_cv_have_zlib=yes],
+ [cho_cv_have_zlib=no])])
+AS_IF([test "x$cho_cv_have_zlib" = xyes],
+ [AC_CHECK_FUNCS([compress],
+ [AC_DEFINE([HAVE_ZLIB], 1,
+ [Define if you have zlib and its headers.])
+ AC_CHECK_FUNCS([compress2],
+ [AC_DEFINE([HAVE_ZLIB_COMPRESS2], 1,
+ [Define if your zlib has the compress2 function.])])])])
+])# CHO_CHECK_ZLIB
+
+# CHO_CHECK_LIBPNG
+# ----------------
+# Check for libpng
+AC_DEFUN([CHO_CHECK_LIBPNG],
+[AC_CACHE_CHECK([for libpng header files and library],
+ [cho_cv_have_png],
+ [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <png.h>]],
+ [[png_infop p;]])],
+ [cho_cv_have_png=yes],
+ [cho_cv_have_png=no])])
+AS_IF([test "x$cho_cv_have_png" = xyes],
+ [AC_CHECK_FUNCS([png_get_image_width],
+ [AC_DEFINE([HAVE_LIBPNG], 1,
+ [Define if you have libpng and its headers.])])])
+])# CHO_CHECK_LIBPNG
+
+# CHO_CHECK_LIBPAPER
+# ------------------
+# Check for libpaper
+AC_DEFUN([CHO_CHECK_LIBPAPER],
+[_cppflags=$CPPFLAGS _ldflags=$LDFLAGS
+ AC_ARG_WITH([paper],
+ [AS_HELP_STRING([--with-paper=DIR], [use paper include/library files from DIR])],
+ [if test -d "$withval"; then
+ CPPFLAGS="$CPPFLAGS -I$withval/include"
+ LDFLAGS="$LDFLAGS -L$withval/lib"
+ fi])
+ AC_MSG_CHECKING([for paper header files])
+ AC_TRY_COMPILE(
+ [#include <paper.h>],
+ [struct paper *p;],
+ [AC_MSG_RESULT(yes)
+ AC_SEARCH_LIBS([paperpswidth], [paper],
+ [AC_DEFINE(HAVE_LIBPAPER, 1, [Define if you have libpaper])])],
+ [CPPFLAGS=$_cppflags
+ LDDFLAGS=$_ldflags
+ AC_MSG_RESULT(no)])
+])# CHO_CHECK_LIBPAPER
+
+# CHO_CHECK_LIBFONTCONFIG
+# -----------------------
+# Check for libfontconfig
+AC_DEFUN([CHO_CHECK_LIBFONTCONFIG],
+[_cppflags=$CPPFLAGS _ldflags=$LDFLAGS
+ have_libfontconfig=no
+ AC_ARG_WITH([fontconfig],
+ [AS_HELP_STRING([--with-fontconfig=DIR],[use fontconfig include/library files from DIR])],
+ [if test -d "$withval"; then
+ CPPFLAGS="$CPPFLAGS -I$withval/include"
+ LDFLAGS="$LDFLAGS -L$withval/lib"
+ FONTCONFIGLDFLAGS="-L$withval/lib"
+ fi])
+ AC_MSG_CHECKING([for fontconfig header files])
+ AC_TRY_COMPILE(
+ [#include <fontconfig/fontconfig.h>],
+ [FcObjectSet *os;],
+ [AC_MSG_RESULT(yes)
+ AC_SEARCH_LIBS([FcInit], [fontconfig],
+ [AC_DEFINE([HAVE_LIBFONTCONFIG], 1, [Define if you have libfontconfig])
+ have_libfontconfig=yes])],
+ [CPPFLAGS=$_cppflags
+ LDDFLAGS=$_ldflags
+ AC_MSG_RESULT(no)])
+])# CHO_CHECK_LIBFONTCONFIG
+
+# CHO_CHECK_LIBFREETYPE(PACKAGE-NAME)
+# -----------------------------------
+# Check for libfreetype, fail with error if not found
+AC_DEFUN([CHO_CHECK_LIBFREETYPE],
+[AC_CACHE_CHECK([for freetype2 header files and library],
+ [cho_cv_have_freetype],
+ [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <ft2build.h>
+#include FT_FREETYPE_H]],
+ [[FT_Face face;]])],
+ [cho_cv_have_freetype=yes],
+ [cho_cv_have_freetype=no])])
+AS_IF([test "x$cho_cv_have_freetype" = xyes],
+ [AC_CHECK_FUNCS([FT_Init_FreeType],
+ [AC_DEFINE([HAVE_LIBFREETYPE], 1,
+ [Define if you have libfreetype and its headers.])])],
+ [AC_MSG_ERROR([This version of $1 requires that FreeType2 and its headers be available.
+You can use the --with-freetype2-includes and/or --with-freetype2-libdir options
+to indicate the location of the installed freetype2 library and headers.])])
+])# CHO_CHECK_LIBFREETYPE
+