Add GPP, a generic preprocessor independant from programming language. Can be usefull to add some conditional and

include support to a language, programming or text processing, that don't support it (yet).

app-text/gpp/gpp-2.4.bep

@@ -0,0 +1,24 @@
+DESCRIPTION="GPP is a general-purpose preprocessor with customizable syntax, suitable for a wide range of preprocessing tasks. Its independence from any programming language makes it much more versatile than cpp, while its syntax is lighter and more flexible than that of m4." 
+HOMEPAGE="http://files.nothingisreal.com/software/gpp/gpp.html" 
+SRC_URI="http://files.nothingisreal.com/software/gpp/gpp-2.24.tar.bz2"
+REVISION="1"
+STATUS_HAIKU="stable"
+DEPEND=""
+CHECKSUM_MD5="f04c2a23312ab3d0c462c7972d1c6aa6"
+BUILD {
+	cd gpp-2.24
+	libtoolize --force --copy --install
+	aclocal
+	automake --add-missing -Wnone
+	autoconf
+	./configure --prefix=`finddir B_COMMON_DIRECTORY` 
+	make
+}
+
+INSTALL {
+	cd gpp-2.24
+	make install
+}
+
+LICENSE="BSD (2-clause)"
+COPYRIGHT="Copyright 1996–2001 Denis Auroux. Copyright 2003, 2004 Tristan Miller."