Makefile: compile all files. make check passes with ldc 1.14.0!

Makefile

@@ -15,7 +15,7 @@ endif
 DLIBS       = $(LIBRARY_PATH)/libphobos2-ldc.a $(LIBRARY_PATH)/libdruntime-ldc.a
 DLIBS_DEBUG = $(LIBRARY_PATH)/libphobos2-ldc-debug.a $(LIBRARY_PATH)/libdruntime-ldc-debug.a
 
-SRC         = $(wildcard contrib/undead/*.d) contrib/undead/internal/file.d $(wildcard bio/std/*.d) $(wildcard bio/std/*/*.d) bio/std/experimental/hts/bgzf.d bio/core/bgzf/constants.d bio/core/utils/stream.d bio/core/utils/switchendianness.d
+SRC         = $(wildcard contrib/undead/*.d) contrib/undead/*/*.d $(wildcard bio/*.d bio/*/*.d bio/*/*/*.d bio/*/*/*/*.d bio/*/*/*/*/*.d bio/*/*/*/*/*/*.d)
 OBJ         = $(SRC:.d=.o)
 BIN         = bin/biod_tests
 

bio/core/decompress.d

@@ -36,7 +36,7 @@ import std.conv;
 import std.exception;
 import std.file;
 import std.parallelism;
-import std.stdio;
+import std.stdio: File;
 import std.zlib: UnCompress;
 
 struct GzipbyLine(R) {