Add stubs for hooking in RAW tests.

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "tests/raw-samples"]
+	path = tests/raw-samples
+	url = git://gitorious.org/taglib-sharp/raw-samples.git

configure.ac

@@ -122,6 +122,15 @@ else
 	AC_SUBST(NUNIT_CMD)
 fi
 
+AC_ARG_ENABLE(raw-tests, AC_HELP_STRING([--enable-raw-tests], [Enable RAW image files NUnit tests]),
+		enable_raw_tests=$enableval, enable_raw_tests="no")
+if test "x$enable_raw_tests" = "xno"; then
+	AC_MSG_WARN([RAW image file tests disabled.])
+	AM_CONDITIONAL(ENABLE_RAW_TESTS, false)
+else
+	AM_CONDITIONAL(ENABLE_RAW_TESTS, true)
+fi
+
 AC_CONFIG_FILES([
 Makefile
 taglib-sharp.pc

tests/Makefile.am

@@ -94,6 +94,8 @@ ASSEMBLY_CSFILES =  \
 	fixtures/TagLib.Tests.TaggingFormats/Mpeg4Test.cs \
 	fixtures/TagLib.Tests.TaggingFormats/XiphTest.cs
 
+RAW_CSFILES =
+
 
 if HAVE_SHARPZIPLIB
     SHARPZIPLIB_FLAGS = -r:ICSharpCode.SharpZipLib.dll -define:HAVE_SHARPZIPLIB
@@ -105,7 +107,17 @@ $(ASSEMBLY): $(ASSEMBLY_CSFILES)
 
 TAGLIB_ASM = ../src/taglib-sharp.dll
 
-build: $(ASSEMBLY) $(TAGLIB_ASM)
+if ENABLE_RAW_TESTS
+update: $(RAW_CSFILES)
+	@echo "Updating RAW repository (this may take a very long time)"
+	pushd $(top_srcdir); git submodule update --init; popd
+
+ASSEMBLY_CSFILES += $(RAW_CSFILES)
+else
+update:
+endif
+
+build: update $(ASSEMBLY) $(TAGLIB_ASM)
 
 if ENABLE_TESTS
 test: build