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-rw-r--r--Build/source/m4/kpse-libpng-flags.m429
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diff --git a/Build/source/m4/kpse-libpng-flags.m4 b/Build/source/m4/kpse-libpng-flags.m4
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+# Public macros for the teTeX / TeX live (TL) tree.
+# Copyright (C) 2009 Peter Breitenlohner <tex-live@tug.org>
+#
+# This file is free software; the copyright holder
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# serial 0
+
+# KPSE_LIBPNG_FLAGS([SHELL-CODE=DEFAULT-SHELL-CODE])
+# --------------------------------------------------
+# Provide the configure options '--with-system-libpng' (if in the TL tree),
+# '--with-libpng-includes', and '--with-libpng-libdir'.
+#
+# Set the make variables LIBPNG_INCLUDES and LIBPNG_LIBS to the CPPFLAGS and
+# LIBS required for the `-lpng' library in libs/libpng/ of the TL tree.
+AC_DEFUN([KPSE_LIBPNG_FLAGS],
+[AC_REQUIRE([KPSE_ZLIB_FLAGS])[]dnl
+_KPSE_LIB_FLAGS([libpng], [png],
+ [$1],
+ [-IBLD/libs/libpng], [BLD/libs/libpng/libpng.a], [],
+ [], [${top_builddir}/../../libs/libpng/png.h ${top_builddir}/../../libs/libpng/pngconf.h])[]dnl
+]) # KPSE_LIBPNG_FLAGS
+
+# KPSE_LIBPNG_SYSTEM_FLAGS
+# ------------------------
+AC_DEFUN([KPSE_LIBPNG_SYSTEM_FLAGS],
+[_KPSE_LIB_FLAGS_SYSTEM([libpng], [png])[]dnl
+]) # KPSE_LIBPNG_SYSTEM_FLAGS