Add recipe for libexttextcat.

libreoffice tries to download this at build time, so I guess we should
have a port.

app-text/libexttextcat/libexttextcat-3.4.5.recipe

@@ -0,0 +1,64 @@
+SUMMARY="N-Gram-Based Text Categorization library"
+DESCRIPTION="libexttextcat is an N-Gram-Based Text Categorization library \
+primarily intended for language guessing.
+
+Fundamentally this is an adaption of wiseguys libtextcat extended to be UTF-8 \
+aware."
+HOMEPAGE="https://github.com/LibreOffice/libexttextcat"
+COPYRIGHT="2003, WiseGuys Internet B.V."
+LICENSE="BSD (3-clause)"
+SOURCE_URI="https://github.com/LibreOffice/libexttextcat/archive/v$portVersion.tar.gz"
+SOURCE_FILENAME="libexttextcat-$portVersion.tar.gz"
+CHECKSUM_SHA256="a2fce2088cacd6d831d9180186006bb2ffe35a2126cb1754a325a1b40f75e090"
+REVISION="1"
+
+ARCHITECTURES="?x86_gcc2 ?x86 ?x86_64"
+SECONDARY_ARCHITECTURES="x86"
+
+PROVIDES="
+	libexttextcat$secondaryArchSuffix = $portVersion
+	lib:libexttextcat_2.0$secondaryArchSuffix = 0.0.0 compat >= 0
+	"
+REQUIRES="
+	haiku$secondaryArchSuffix
+	"
+
+PROVIDES_devel="
+	libexttextcat${secondaryArchSuffix}_devel = $portVersion
+	cmd:createfp$secondaryArchSuffix
+	devel:libexttextcat_2.0$secondaryArchSuffix = 0.0.0 compat >= 0
+	"
+REQUIRES_devel="
+	haiku$secondaryArchSuffix
+	haiku${secondaryArchSuffix}_devel
+	libexttextcat$secondaryArchSuffix == $portVersion base
+	"
+
+BUILD_REQUIRES="
+	haiku${secondaryArchSuffix}_devel
+	"
+BUILD_PREREQUIRES="
+	cmd:aclocal
+	cmd:autoconf
+	cmd:libtoolize
+	cmd:make
+	cmd:gcc$secondaryArchSuffix
+	cmd:which
+	"
+
+BUILD()
+{
+	./autogen.sh
+	runConfigure ./configure
+	make $jobArgs
+}
+
+INSTALL()
+{
+	make install
+
+	prepareInstalledDevelLibs \
+		libexttextcat-2.0
+	packageEntries devel \
+		$developDir $binDir
+}