tag: id3v2: add id3v2 tag parsing helpers
https://bugzilla.gnome.org/show_bug.cgi?id=654388
diff --git a/configure.ac b/configure.ac
index f14abe1..a76691f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -505,6 +505,17 @@
AM_CONDITIONAL(USE_ISO_CODES, false)
fi
+dnl *** zlib is optionally used by id3 tag parsing in libgsttag ***
+translit(dnm, m, l) AM_CONDITIONAL(USE_ZLIB, true)
+AG_GST_CHECK_FEATURE(ZLIB, [zlib support for ID3 parsing in libgsttag],, [
+ AG_GST_CHECK_LIBHEADER(ZLIB,
+ z, uncompress,, zlib.h, [
+ HAVE_ZLIB="yes"
+ ZLIB_LIBS="-lz"
+ AC_SUBST(ZLIB_LIBS)
+ ])
+])
+
dnl *** sys plug-ins ***
echo