almost done

fpc/buildfile/interfaces.cpp

@@ -0,0 +1,26 @@
+#include "tier1/interface.h"
+#include "helper.h"
+
+static BuildFileInfo_t buildfileinfo = {};
+BuildFileInfo_t *GetBuildFileInfo()
+{
+	return &buildfileinfo;
+}
+
+
+CBuildStage::CBuildStage( const char *psz, int(*pMainFn)() )
+{
+	m_psz = psz;
+	m_pMainFn = pMainFn;
+	if (psz == 0 || pMainFn == 0)
+		Plat_FatalErrorFunc("Name and function pointer must be set\n");
+	
+	GetBuildFileInfo()->m_stages.AppendTail(this);
+};
+
+CBuildDependentFile::CBuildDependentFile( const char *psz )
+{
+	GetBuildFileInfo()->m_dependantFiles.AppendTail(psz);
+}
+
+EXPOSE_INTERFACE_GLOBALVAR(BuildFileInfo_t, BuildFileInfo_t, BUILD_FILE_INFO_INTERFACE_NAME, buildfileinfo);