diff --git a/third_party/eigen/BUILD b/third_party/eigen/BUILD
index 4a33fd9..8fe7fa6 100644
--- a/third_party/eigen/BUILD
+++ b/third_party/eigen/BUILD
@@ -1,22 +1,28 @@
-licenses(['notice'])
+licenses(["notice"])
 
 load("//tools:environments.bzl", "mcu_cpus")
 
 cc_library(
-  name = 'eigen',
-  visibility = ['//visibility:public'],
-  srcs = glob(['Eigen/src/**/*.h']),
-  includes = ['.'],
-  hdrs = glob(['Eigen/*'], exclude=[
-    # Stuff that we don't have the dependencies for.
-    'Eigen/CholmodSupport',
-    'Eigen/MetisSupport',
-    'Eigen/PaStiXSupport',
-    'Eigen/PardisoSupport',
-    'Eigen/SPQRSupport',
-    'Eigen/SuperLUSupport',
-    'Eigen/UmfPackSupport',
-  ]) + ['unsupported/Eigen/MatrixFunctions'] +
-  glob(['unsupported/Eigen/src/MatrixFunctions/*.h']),
-  compatible_with = mcu_cpus,
+    name = "eigen",
+    srcs = glob(["Eigen/src/**/*.h"]),
+    hdrs = glob(
+        ["Eigen/*"],
+        exclude = [
+            # Stuff that we don't have the dependencies for.
+            "Eigen/CholmodSupport",
+            "Eigen/MetisSupport",
+            "Eigen/PaStiXSupport",
+            "Eigen/PardisoSupport",
+            "Eigen/SPQRSupport",
+            "Eigen/SuperLUSupport",
+            "Eigen/UmfPackSupport",
+        ],
+    ) + ["unsupported/Eigen/MatrixFunctions"] + glob([
+        "unsupported/Eigen/src/MatrixFunctions/*.h",
+    ]),
+    compatible_with = mcu_cpus + [
+        "//tools:armhf-debian",
+    ],
+    includes = ["."],
+    visibility = ["//visibility:public"],
 )
diff --git a/third_party/googletest/BUILD b/third_party/googletest/BUILD
index c082b0c..b0a99a6 100644
--- a/third_party/googletest/BUILD
+++ b/third_party/googletest/BUILD
@@ -27,6 +27,9 @@
     hdrs = glob([
         "googletest/include/gtest/*.h",
     ]),
+    compatible_with = [
+        "//tools:armhf-debian",
+    ],
     copts = [
         "-g",
         "-Wall",
@@ -71,6 +74,9 @@
     hdrs = glob([
         "googlemock/include/gmock/*.h",
     ]),
+    compatible_with = [
+        "//tools:armhf-debian",
+    ],
     copts = [
         "-std=c++11",
         "-g",
diff --git a/third_party/libjpeg/BUILD b/third_party/libjpeg/BUILD
index a139773..469de52 100644
--- a/third_party/libjpeg/BUILD
+++ b/third_party/libjpeg/BUILD
@@ -1,69 +1,74 @@
-licenses(['notice'])
+licenses(["notice"])
 
 cc_library(
-  name = 'libjpeg',
-  visibility = ['//visibility:public'],
-  srcs = glob([
-    'jaricom.c',
-    'jcapimin.c',
-    'jcapistd.c',
-    'jcarith.c',
-    'jccoefct.c',
-    'jccolor.c',
-    'jcdctmgr.c',
-    'jchuff.c',
-    'jcinit.c',
-    'jcmainct.c',
-    'jcmarker.c',
-    'jcmaster.c',
-    'jcomapi.c',
-    'jcparam.c',
-    'jcprepct.c',
-    'jcsample.c',
-    'jctrans.c',
-    'jdapimin.c',
-    'jdapistd.c',
-    'jdarith.c',
-    'jdatadst.c',
-    'jdatasrc.c',
-    'jdcoefct.c',
-    'jdcolor.c',
-    'jddctmgr.c',
-    'jdhuff.c',
-    'jdinput.c',
-    'jdmainct.c',
-    'jdmarker.c',
-    'jdmaster.c',
-    'jdmerge.c',
-    'jdpostct.c',
-    'jdsample.c',
-    'jdtrans.c',
-    'jerror.c',
-    'jfdctflt.c',
-    'jfdctfst.c',
-    'jfdctint.c',
-    'jidctflt.c',
-    'jidctfst.c',
-    'jidctint.c',
-    'jquant1.c',
-    'jquant2.c',
-    'jutils.c',
-    'jmemmgr.c',
-    'jmemnobs.c',
-  ]),
-  hdrs = glob([
-    '*.h',
-  ], exclude=[
-    'jmemdos.h',
-    'jmemmac.h',
-  ]),
-  includes = ['src/main/c'],
-  copts = [
-    '-Wno-cast-align',
-    '-Wno-cast-qual',
-
-    '-Wno-switch-enum',
-    '-Wno-format-nonliteral',
-    '-Wno-unused-parameter',
-  ],
+    name = "libjpeg",
+    srcs = glob([
+        "jaricom.c",
+        "jcapimin.c",
+        "jcapistd.c",
+        "jcarith.c",
+        "jccoefct.c",
+        "jccolor.c",
+        "jcdctmgr.c",
+        "jchuff.c",
+        "jcinit.c",
+        "jcmainct.c",
+        "jcmarker.c",
+        "jcmaster.c",
+        "jcomapi.c",
+        "jcparam.c",
+        "jcprepct.c",
+        "jcsample.c",
+        "jctrans.c",
+        "jdapimin.c",
+        "jdapistd.c",
+        "jdarith.c",
+        "jdatadst.c",
+        "jdatasrc.c",
+        "jdcoefct.c",
+        "jdcolor.c",
+        "jddctmgr.c",
+        "jdhuff.c",
+        "jdinput.c",
+        "jdmainct.c",
+        "jdmarker.c",
+        "jdmaster.c",
+        "jdmerge.c",
+        "jdpostct.c",
+        "jdsample.c",
+        "jdtrans.c",
+        "jerror.c",
+        "jfdctflt.c",
+        "jfdctfst.c",
+        "jfdctint.c",
+        "jidctflt.c",
+        "jidctfst.c",
+        "jidctint.c",
+        "jquant1.c",
+        "jquant2.c",
+        "jutils.c",
+        "jmemmgr.c",
+        "jmemnobs.c",
+    ]),
+    hdrs = glob(
+        [
+            "*.h",
+        ],
+        exclude = [
+            "jmemdos.h",
+            "jmemmac.h",
+        ],
+    ),
+    compatible_with = [
+        "//tools:armhf-debian",
+    ],
+    copts = [
+        "-Wno-cast-align",
+        "-Wno-cast-qual",
+        "-Wno-switch-enum",
+        "-Wno-format-nonliteral",
+        "-Wno-unused-parameter",
+    ],
+    includes = ["src/main/c"],
+    visibility = ["//visibility:public"],
 )
diff --git a/third_party/protobuf/BUILD b/third_party/protobuf/BUILD
index ddeeb77..5e9005b 100644
--- a/third_party/protobuf/BUILD
+++ b/third_party/protobuf/BUILD
@@ -71,6 +71,9 @@
         "src/google/protobuf/wire_format_lite.cc",
     ],
     hdrs = glob(["src/google/protobuf/**/*.h"]),
+    compatible_with = [
+        "//tools:armhf-debian",
+    ],
     copts = COPTS,
     includes = ["src/"],
     linkopts = LINK_OPTS,
@@ -136,6 +139,9 @@
         "src/google/protobuf/wrappers.pb.cc",
     ],
     hdrs = glob(["src/**/*.h"]),
+    compatible_with = [
+        "//tools:armhf-debian",
+    ],
     copts = COPTS,
     includes = ["src/"],
     linkopts = LINK_OPTS,
@@ -143,7 +149,7 @@
     deps = [":protobuf_lite"],
 )
 
-'''
+"""
 objc_library(
     name = "protobuf_objc",
     hdrs = ["objectivec/GPBProtocolBuffers.h"],
@@ -151,7 +157,7 @@
     non_arc_srcs = ["objectivec/GPBProtocolBuffers.m"],
     visibility = ["//visibility:public"],
 )
-'''
+"""
 
 RELATIVE_WELL_KNOWN_PROTOS = [
     # AUTOGEN(well_known_protos)
@@ -363,10 +369,10 @@
     name = "cc_test_protos",
     srcs = LITE_TEST_PROTOS + TEST_PROTOS,
     include = "src",
+    copts = COPTS,
     default_runtime = ":protobuf",
     protoc = ":protoc",
     deps = [":cc_wkt_protos"],
-    copts = COPTS,
 )
 
 COMMON_TEST_SRCS = [
@@ -386,12 +392,12 @@
         "src/google/protobuf/compiler/test_plugin.cc",
         "src/google/protobuf/testing/file.cc",
     ],
+    copts = COPTS,
     deps = [
         ":protobuf",
         ":protoc_lib",
         "//external:gtest",
     ],
-    copts = COPTS,
 )
 
 cc_test(
@@ -488,11 +494,11 @@
     name = "gen_well_known_protos_java",
     srcs = WELL_KNOWN_PROTOS,
     outs = [
-        "wellknown.srcjar"
+        "wellknown.srcjar",
     ],
     cmd = "$(location :protoc) --java_out=$(@D)/wellknown.jar" +
-        " -Ithird_party/protobuf/src $(SRCS) " +
-        " && mv $(@D)/wellknown.jar $(@D)/wellknown.srcjar",
+          " -Ithird_party/protobuf/src $(SRCS) " +
+          " && mv $(@D)/wellknown.jar $(@D)/wellknown.srcjar",
     tools = [":protoc"],
 )
 
@@ -543,7 +549,7 @@
     include = "python",
 )
 
-'''
+"""
 cc_binary(
     name = "internal/_api_implementation.so",
     srcs = ["python/google/protobuf/internal/api_implementation.cc"],
@@ -580,7 +586,7 @@
         ":use_fast_cpp_protos": ["//third_party/protobuf/util/python:python_headers"],
     }),
 )
-'''
+"""
 
 config_setting(
     name = "use_fast_cpp_protos",