diff --git a/Makefile b/Makefile
index 1a9d3089..427f4ecf 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
-export BUILDTYPE
 BUILDTYPE ?= host
+export BUILDTYPE
 
 ifeq ($(BUILDTYPE),windows)
 	MINGW = i686-w64-mingw32-
diff --git a/build/c.py b/build/c.py
index 3ec4c548..76e54f29 100644
--- a/build/c.py
+++ b/build/c.py
@@ -17,6 +17,8 @@ class Toolchain:
     cxxfile = ["$(CXX) -c -o {outs[0]} {ins[0]} $(CFLAGS) {cflags}"]
     clibrary = ["$(AR) cqs {outs[0]} {ins}"]
     cxxlibrary = ["$(AR) cqs {outs[0]} {ins}"]
+    clibraryt = ["$(AR) cqsT {outs[0]} {ins}"]
+    cxxlibraryt = ["$(AR) cqsT {outs[0]} {ins}"]
     cprogram = ["$(CC) -o {outs[0]} {ins} {ldflags} $(LDFLAGS)"]
     cxxprogram = ["$(CXX) -o {outs[0]} {ins} {ldflags} $(LDFLAGS)"]
 
@@ -27,6 +29,8 @@ class HostToolchain:
     cxxfile = ["$(HOSTCXX) -c -o {outs[0]} {ins[0]} $(HOSTCFLAGS) {cflags}"]
     clibrary = ["$(HOSTAR) cqs {outs[0]} {ins}"]
     cxxlibrary = ["$(HOSTAR) cqs {outs[0]} {ins}"]
+    clibraryt = ["$(HOSTAR) cqs {outs[0]} {ins}"]
+    cxxlibraryt = ["$(HOSTAR) cqs {outs[0]} {ins}"]
     cprogram = ["$(HOSTCC) -o {outs[0]} {ins} {ldflags} $(HOSTLDFLAGS)"]
     cxxprogram = ["$(HOSTCXX) -o {outs[0]} {ins} {ldflags} $(HOSTLDFLAGS)"]
 
@@ -44,7 +48,7 @@ def cfileimpl(self, name, srcs, deps, suffix, commands, label, kind, cflags):
     t = simplerule(
         replaces=self,
         ins=srcs,
-        deps=hdr_deps,
+        deps=sorted(hdr_deps),
         outs=[outleaf],
         label=label,
         commands=commands,
@@ -312,7 +316,7 @@ def programimpl(
     label,
     filerule,
     kind,
-    libkind,
+    libaggrule,
 ):
     cfiles = findsources(
         self.localname, srcs, deps, cflags, toolchain, filerule, self.cwd
@@ -326,11 +330,21 @@ def programimpl(
         targets=lib_deps, name="caller_ldflags", initial=ldflags
     )
 
+    if len(libs) > 1:
+        libs = [
+            simplerule(
+                name=f"{self.localname}_libs",
+                ins=libs,
+                outs=[f"={self.localname}.a"],
+                commands=libaggrule,
+                label="LIBT",
+            )
+        ]
+
     simplerule(
         replaces=self,
-        ins=cfiles + libs + libs,
+        ins=cfiles + libs,
         outs=[f"={self.localname}$(EXT)"],
-        deps=lib_deps,
         label=toolchain.label + label,
         commands=commands,
         args={
@@ -367,7 +381,7 @@ def cprogram(
         label,
         cfile,
         "cprogram",
-        "clibrary",
+        toolchain.clibraryt,
     )
 
 
@@ -397,5 +411,5 @@ def cxxprogram(
         label,
         cxxfile,
         "cxxprogram",
-        "cxxlibrary",
+        toolchain.cxxlibraryt,
     )
diff --git a/lib/build.py b/lib/build.py
index e992b0e5..706ac453 100644
--- a/lib/build.py
+++ b/lib/build.py
@@ -30,7 +30,6 @@
     name="config_proto",
     srcs=[
         "./config.proto",
-        "./decoders/decoders.proto",
         "./imagereader/imagereader.proto",
         "./imagewriter/imagewriter.proto",
     ],
@@ -44,6 +43,7 @@
         "lib/vfs+proto",
         "lib/usb+proto",
         "lib/encoders+proto",
+        "lib/decoders+proto",
     ],
 )
 
@@ -56,6 +56,7 @@
         "lib/vfs+proto_lib",
         "lib/usb+proto_lib",
         "lib/encoders+proto_lib",
+        "lib/decoders+proto_lib",
         "lib+drive_proto_lib",
     ],
 )
diff --git a/lib/decoders/build.py b/lib/decoders/build.py
new file mode 100644
index 00000000..386248ca
--- /dev/null
+++ b/lib/decoders/build.py
@@ -0,0 +1,12 @@
+from build.protobuf import proto, protocc
+
+proto(
+    name="proto",
+    srcs=["./decoders.proto"],
+    deps=["lib+common_proto", "arch+proto", "lib/fluxsink+proto"],
+)
+protocc(
+    name="proto_lib",
+    srcs=[".+proto"],
+    deps=["lib+common_proto_lib", "arch+proto_lib", "lib/fluxsink+proto_lib"],
+)
diff --git a/tests/build.py b/tests/build.py
index 772b3c83..eee064e8 100644
--- a/tests/build.py
+++ b/tests/build.py
@@ -96,6 +96,7 @@
                     "dep/libusbp",
                     "dep/snowhouse",
                     "dep/stb",
+                    "arch+proto_lib",
                     "lib+config_proto_lib",
                     "src/formats",
                 ]