diff --git a/Makefile b/Makefile
index deae0312f29..a2f9cf4850c 100644
--- a/Makefile
+++ b/Makefile
@@ -274,6 +274,7 @@ include libc/BUILD.mk				#─┘
 include libc/sock/BUILD.mk			#─┐
 include net/http/BUILD.mk			# ├──ONLINE RUNTIME
 include third_party/musl/BUILD.mk		# │  You can communicate with the network
+include libc/system/BUILD.mk			# │
 include libc/x/BUILD.mk				# │
 include dsp/scale/BUILD.mk			# │
 include dsp/mpeg/BUILD.mk			# │
@@ -367,6 +368,7 @@ include test/libc/fmt/BUILD.mk
 include test/libc/time/BUILD.mk
 include test/libc/proc/BUILD.mk
 include test/libc/stdio/BUILD.mk
+include test/libc/system/BUILD.mk
 include test/libc/BUILD.mk
 include test/net/http/BUILD.mk
 include test/net/https/BUILD.mk
@@ -449,7 +451,6 @@ COSMOPOLITAN =				\
 	LIBC_NT_BCRYPTPRIMITIVES	\
 	LIBC_NT_COMDLG32		\
 	LIBC_NT_GDI32			\
-	LIBC_NT_SHELL32			\
 	LIBC_NT_IPHLPAPI		\
 	LIBC_NT_KERNEL32		\
 	LIBC_NT_NTDLL			\
@@ -457,6 +458,7 @@ COSMOPOLITAN =				\
 	LIBC_NT_POWRPROF		\
 	LIBC_NT_PSAPI			\
 	LIBC_NT_REALTIME		\
+	LIBC_NT_SHELL32			\
 	LIBC_NT_SYNCHRONIZATION		\
 	LIBC_NT_USER32			\
 	LIBC_NT_WS2_32			\
@@ -465,6 +467,7 @@ COSMOPOLITAN =				\
 	LIBC_SOCK			\
 	LIBC_STDIO			\
 	LIBC_STR			\
+	LIBC_SYSTEM			\
 	LIBC_SYSV			\
 	LIBC_SYSV_CALLS			\
 	LIBC_THREAD			\
diff --git a/examples/BUILD.mk b/examples/BUILD.mk
index a6d704a87cb..3d50b54299e 100644
--- a/examples/BUILD.mk
+++ b/examples/BUILD.mk
@@ -54,8 +54,8 @@ EXAMPLES_DIRECTDEPS =						\
 	LIBC_NEXGEN32E						\
 	LIBC_NT_ADVAPI32					\
 	LIBC_NT_IPHLPAPI					\
-	LIBC_NT_MEMORY						\
 	LIBC_NT_KERNEL32					\
+	LIBC_NT_MEMORY						\
 	LIBC_NT_NTDLL						\
 	LIBC_NT_USER32						\
 	LIBC_NT_WS2_32						\
@@ -64,6 +64,7 @@ EXAMPLES_DIRECTDEPS =						\
 	LIBC_SOCK						\
 	LIBC_STDIO						\
 	LIBC_STR						\
+	LIBC_SYSTEM						\
 	LIBC_SYSV						\
 	LIBC_SYSV_CALLS						\
 	LIBC_TESTLIB						\
@@ -81,6 +82,8 @@ EXAMPLES_DIRECTDEPS =						\
 	THIRD_PARTY_GETOPT					\
 	THIRD_PARTY_HIREDIS					\
 	THIRD_PARTY_LIBCXX					\
+	THIRD_PARTY_LIBCXXABI					\
+	THIRD_PARTY_LIBUNWIND					\
 	THIRD_PARTY_LINENOISE					\
 	THIRD_PARTY_LUA						\
 	THIRD_PARTY_MBEDTLS					\
@@ -94,12 +97,10 @@ EXAMPLES_DIRECTDEPS =						\
 	THIRD_PARTY_TZ						\
 	THIRD_PARTY_VQSORT					\
 	THIRD_PARTY_XED						\
-	THIRD_PARTY_LIBCXXABI					\
-	THIRD_PARTY_LIBUNWIND					\
 	THIRD_PARTY_ZLIB					\
 	TOOL_ARGS						\
 	TOOL_BUILD_LIB						\
-	TOOL_VIZ_LIB
+	TOOL_VIZ_LIB						\
 
 EXAMPLES_DEPS :=						\
 	$(call uniq,$(foreach x,$(EXAMPLES_DIRECTDEPS),$($(x))))
diff --git a/libc/system/BUILD.mk b/libc/system/BUILD.mk
new file mode 100644
index 00000000000..75a43ea401b
--- /dev/null
+++ b/libc/system/BUILD.mk
@@ -0,0 +1,81 @@
+#-*-mode:makefile-gmake;indent-tabs-mode:t;tab-width:8;coding:utf-8-*-┐
+#── vi: set noet ft=make ts=8 sw=8 fenc=utf-8 :vi ────────────────────┘
+
+PKGS += LIBC_SYSTEM
+
+LIBC_SYSTEM_ARTIFACTS += LIBC_SYSTEM_A
+LIBC_SYSTEM = $(LIBC_SYSTEM_A_DEPS) $(LIBC_SYSTEM_A)
+LIBC_SYSTEM_A = o/$(MODE)/libc/system/system.a
+LIBC_SYSTEM_A_FILES := $(wildcard libc/system/*)
+LIBC_SYSTEM_A_HDRS = $(filter %.h,$(LIBC_SYSTEM_A_FILES))
+LIBC_SYSTEM_A_INCS = $(filter %.inc,$(LIBC_SYSTEM_A_FILES))
+LIBC_SYSTEM_A_SRCS_S = $(filter %.S,$(LIBC_SYSTEM_A_FILES))
+LIBC_SYSTEM_A_SRCS_C = $(filter %.c,$(LIBC_SYSTEM_A_FILES))
+
+LIBC_SYSTEM_A_SRCS =					\
+	$(LIBC_SYSTEM_A_SRCS_S)				\
+	$(LIBC_SYSTEM_A_SRCS_C)
+
+LIBC_SYSTEM_A_OBJS =					\
+	$(LIBC_SYSTEM_A_SRCS_S:%.S=o/$(MODE)/%.o)	\
+	$(LIBC_SYSTEM_A_SRCS_C:%.c=o/$(MODE)/%.o)
+
+LIBC_SYSTEM_A_CHECKS =					\
+	$(LIBC_SYSTEM_A).pkg				\
+	$(LIBC_SYSTEM_A_HDRS:%=o/$(MODE)/%.ok)
+
+LIBC_SYSTEM_A_DIRECTDEPS =				\
+	LIBC_CALLS					\
+	LIBC_FMT					\
+	LIBC_INTRIN					\
+	LIBC_NEXGEN32E					\
+	LIBC_PROC					\
+	LIBC_RUNTIME					\
+	LIBC_STDIO					\
+	LIBC_STR					\
+	LIBC_SYSV					\
+	THIRD_PARTY_MUSL				\
+
+LIBC_SYSTEM_A_DEPS :=					\
+	$(call uniq,$(foreach x,$(LIBC_SYSTEM_A_DIRECTDEPS),$($(x))))
+
+$(LIBC_SYSTEM_A):libc/system/				\
+		$(LIBC_SYSTEM_A).pkg			\
+		$(LIBC_SYSTEM_A_OBJS)
+
+$(LIBC_SYSTEM_A).pkg:					\
+		$(LIBC_SYSTEM_A_OBJS)			\
+		$(foreach x,$(LIBC_SYSTEM_A_DIRECTDEPS),$($(x)_A).pkg)
+
+# offer assurances about the stack safety of cosmo libc
+$(LIBC_SYSTEM_A_OBJS): private COPTS += -Wframe-larger-than=4096 -Walloca-larger-than=4096
+
+$(LIBC_SYSTEM_A_OBJS): private				\
+		CFLAGS +=				\
+			-fno-sanitize=all		\
+			-Wframe-larger-than=4096	\
+			-Walloca-larger-than=4096
+
+o/$(MODE)/libc/system/fputc.o: private			\
+		CFLAGS +=				\
+			-O3
+
+o//libc/system/appendw.o: private			\
+		CFLAGS +=				\
+			-Os
+
+o/$(MODE)/libc/system/dirstream.o			\
+o/$(MODE)/libc/system/mt19937.o: private			\
+		CFLAGS +=				\
+			-ffunction-sections
+
+LIBC_SYSTEM_LIBS = $(foreach x,$(LIBC_SYSTEM_ARTIFACTS),$($(x)))
+LIBC_SYSTEM_SRCS = $(foreach x,$(LIBC_SYSTEM_ARTIFACTS),$($(x)_SRCS))
+LIBC_SYSTEM_HDRS = $(foreach x,$(LIBC_SYSTEM_ARTIFACTS),$($(x)_HDRS))
+LIBC_SYSTEM_INCS = $(foreach x,$(LIBC_SYSTEM_ARTIFACTS),$($(x)_INCS))
+LIBC_SYSTEM_CHECKS = $(foreach x,$(LIBC_SYSTEM_ARTIFACTS),$($(x)_CHECKS))
+LIBC_SYSTEM_OBJS = $(foreach x,$(LIBC_SYSTEM_ARTIFACTS),$($(x)_OBJS))
+$(LIBC_SYSTEM_OBJS): $(BUILD_FILES) libc/system/BUILD.mk
+
+.PHONY: o/$(MODE)/libc/system
+o/$(MODE)/libc/system: $(LIBC_SYSTEM_CHECKS)
diff --git a/libc/proc/cocmd.c b/libc/system/cocmd.c
similarity index 97%
rename from libc/proc/cocmd.c
rename to libc/system/cocmd.c
index 5345b13b85a..3eebcf30ebd 100644
--- a/libc/proc/cocmd.c
+++ b/libc/system/cocmd.c
@@ -1055,12 +1055,9 @@ int _cocmd(int argc, char **argv, char **envp) {
   unsupported['('] = true;
   unsupported[')'] = true;
   unsupported['{'] = true;
-  unsupported['}'] = false;  // Perl t/op/exec.t depends on unpaired } being
-                             // passed from the shell to Perl
-  if (!_weaken(glob)) {
-    unsupported['*'] = true;
-    unsupported['?'] = true;
-  }
+  // Perl t/op/exec.t depends on unpaired } being
+  // passed from the shell to Perl
+  unsupported['}'] = false;
 
   if (argc >= 3 && !strcmp(argv[1], "--")) {
     for (i = 2; i < argc; ++i) {
@@ -1121,18 +1118,16 @@ int _cocmd(int argc, char **argv, char **envp) {
         Open(GetRedirectArg(prog, arg, 1), 0, O_RDONLY);
       } else {
         int globrc = GLOB_NOMATCH;
-        if (_weaken(glob)) {
-          globrc = _weaken(glob)(arg, globFlags, NULL, &globTheBuilder);
-          if (globrc == 0) {
-            for (; globCount < globTheBuilder.gl_pathc; globCount++) {
-              args[n++] = globTheBuilder.gl_pathv[globCount];
-            }
-          } else if (globrc != GLOB_NOMATCH) {
-            tinyprint(2, prog, ": error: with glob\n", NULL);
-            _Exit(16);
+        globrc = glob(arg, globFlags, NULL, &globTheBuilder);
+        if (globrc == 0) {
+          for (; globCount < globTheBuilder.gl_pathc; globCount++) {
+            args[n++] = globTheBuilder.gl_pathv[globCount];
           }
-          globFlags |= GLOB_APPEND;
+        } else if (globrc != GLOB_NOMATCH) {
+          tinyprint(2, prog, ": error: with glob\n", NULL);
+          _Exit(16);
         }
+        globFlags |= GLOB_APPEND;
         if (globrc == GLOB_NOMATCH) {
           args[n++] = arg;
         }
diff --git a/libc/stdio/fleaks.c b/libc/system/fleaks.c
similarity index 100%
rename from libc/stdio/fleaks.c
rename to libc/system/fleaks.c
diff --git a/libc/stdio/popen.c b/libc/system/popen.c
similarity index 100%
rename from libc/stdio/popen.c
rename to libc/system/popen.c
diff --git a/libc/proc/system.c b/libc/system/system.c
similarity index 100%
rename from libc/proc/system.c
rename to libc/system/system.c
diff --git a/libc/proc/systemvpe.c b/libc/system/systemvpe.c
similarity index 100%
rename from libc/proc/systemvpe.c
rename to libc/system/systemvpe.c
diff --git a/net/turfwar/BUILD.mk b/net/turfwar/BUILD.mk
index 73a1fd2e62f..0a49ad12f8e 100644
--- a/net/turfwar/BUILD.mk
+++ b/net/turfwar/BUILD.mk
@@ -28,6 +28,7 @@ NET_TURFWAR_DIRECTDEPS =				\
 	LIBC_SOCK					\
 	LIBC_STDIO					\
 	LIBC_STR					\
+	LIBC_SYSTEM					\
 	LIBC_SYSV					\
 	LIBC_THREAD					\
 	LIBC_X						\
@@ -39,7 +40,7 @@ NET_TURFWAR_DIRECTDEPS =				\
 	THIRD_PARTY_SQLITE3				\
 	THIRD_PARTY_STB					\
 	THIRD_PARTY_TZ					\
-	THIRD_PARTY_ZLIB
+	THIRD_PARTY_ZLIB				\
 
 NET_TURFWAR_DEPS :=					\
 	$(call uniq,$(foreach x,$(NET_TURFWAR_DIRECTDEPS),$($(x))))
diff --git a/test/ctl/BUILD.mk b/test/ctl/BUILD.mk
index 6b36e766d8a..a6944bbf840 100644
--- a/test/ctl/BUILD.mk
+++ b/test/ctl/BUILD.mk
@@ -20,7 +20,7 @@ TEST_CTL_DIRECTDEPS =				\
 	LIBC_NEXGEN32E				\
 	LIBC_PROC				\
 	LIBC_STDIO				\
-	LIBC_STDIO				\
+	LIBC_SYSTEM				\
 	LIBC_THREAD				\
 	THIRD_PARTY_LIBCXX			\
 	THIRD_PARTY_LIBCXXABI			\
diff --git a/test/libc/proc/BUILD.mk b/test/libc/proc/BUILD.mk
index 11f37d91d3c..dc8a42ceedd 100644
--- a/test/libc/proc/BUILD.mk
+++ b/test/libc/proc/BUILD.mk
@@ -73,18 +73,6 @@ o/$(MODE)/test/libc/proc/posix_spawn_test.dbg:				\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)
 
-o/$(MODE)/test/libc/proc/system_test.dbg:				\
-		$(TEST_LIBC_PROC_DEPS)					\
-		o/$(MODE)/test/libc/proc/system_test.o			\
-		o/$(MODE)/test/libc/proc/proc.pkg			\
-		o/$(MODE)/tool/build/echo.zip.o				\
-		o/$(MODE)/tool/build/cocmd.zip.o			\
-		o/$(MODE)/tool/build/false.zip.o			\
-		$(LIBC_TESTMAIN)					\
-		$(CRT)							\
-		$(APE_NO_MODIFY_SELF)
-	@$(APELINK)
-
 o/$(MODE)/test/libc/proc/execve_test.dbg:				\
 		$(TEST_LIBC_PROC_DEPS)					\
 		o/$(MODE)/test/libc/proc/execve_test.o			\
diff --git a/test/libc/stdio/BUILD.mk b/test/libc/stdio/BUILD.mk
index 78bd1138c3e..3cc6f6d5f4d 100644
--- a/test/libc/stdio/BUILD.mk
+++ b/test/libc/stdio/BUILD.mk
@@ -28,26 +28,27 @@ TEST_LIBC_STDIO_DIRECTDEPS =					\
 	LIBC_CALLS						\
 	LIBC_FMT						\
 	LIBC_INTRIN						\
+	LIBC_LOG						\
 	LIBC_MEM						\
 	LIBC_NEXGEN32E						\
 	LIBC_PROC						\
 	LIBC_RUNTIME						\
 	LIBC_STDIO						\
 	LIBC_STR						\
+	LIBC_SYSTEM						\
 	LIBC_SYSV						\
-	LIBC_TINYMATH						\
 	LIBC_TESTLIB						\
 	LIBC_THREAD						\
-	LIBC_LOG						\
+	LIBC_TINYMATH						\
 	LIBC_X							\
 	THIRD_PARTY_COMPILER_RT					\
 	THIRD_PARTY_GDTOA					\
 	THIRD_PARTY_MBEDTLS					\
 	THIRD_PARTY_MUSL					\
 	THIRD_PARTY_NSYNC					\
+	THIRD_PARTY_TZ						\
 	THIRD_PARTY_ZLIB					\
 	THIRD_PARTY_ZLIB_GZ					\
-	THIRD_PARTY_TZ
 
 TEST_LIBC_STDIO_DEPS :=						\
 	$(call uniq,$(foreach x,$(TEST_LIBC_STDIO_DIRECTDEPS),$($(x))))
@@ -66,16 +67,6 @@ o/$(MODE)/test/libc/stdio/%.dbg:				\
 		$(APE_NO_MODIFY_SELF)
 	@$(APELINK)
 
-o/$(MODE)/test/libc/stdio/popen_test.dbg:			\
-		$(TEST_LIBC_STDIO_DEPS)				\
-		o/$(MODE)/test/libc/stdio/popen_test.o		\
-		o/$(MODE)/test/libc/stdio/stdio.pkg		\
-		o/$(MODE)/tool/build/echo.zip.o			\
-		$(LIBC_TESTMAIN)				\
-		$(CRT)						\
-		$(APE_NO_MODIFY_SELF)
-	@$(APELINK)
-
 $(TEST_LIBC_STDIO_OBJS): private				\
 		DEFAULT_CCFLAGS +=				\
 			-fno-builtin
diff --git a/test/libc/system/BUILD.mk b/test/libc/system/BUILD.mk
new file mode 100644
index 00000000000..953f7068bb4
--- /dev/null
+++ b/test/libc/system/BUILD.mk
@@ -0,0 +1,88 @@
+#-*-mode:makefile-gmake;indent-tabs-mode:t;tab-width:8;coding:utf-8-*-┐
+#── vi: set noet ft=make ts=8 sw=8 fenc=utf-8 :vi ────────────────────┘
+
+PKGS += TEST_LIBC_SYSTEM
+
+TEST_LIBC_SYSTEM_FILES := $(wildcard test/libc/system/*)
+TEST_LIBC_SYSTEM_SRCS = $(filter %.c,$(TEST_LIBC_SYSTEM_FILES))
+TEST_LIBC_SYSTEM_INCS = $(filter %.inc,$(TEST_LIBC_SYSTEM_FILES))
+TEST_LIBC_SYSTEM_SRCS_TEST = $(filter %_test.c,$(TEST_LIBC_SYSTEM_SRCS))
+
+TEST_LIBC_SYSTEM_OBJS =						\
+	$(TEST_LIBC_SYSTEM_SRCS:%.c=o/$(MODE)/%.o)
+
+TEST_LIBC_SYSTEM_COMS =						\
+	$(TEST_LIBC_SYSTEM_SRCS:%.c=o/$(MODE)/%)
+
+TEST_LIBC_SYSTEM_BINS =						\
+	$(TEST_LIBC_SYSTEM_COMS)				\
+	$(TEST_LIBC_SYSTEM_COMS:%=%.dbg)
+
+TEST_LIBC_SYSTEM_TESTS =					\
+	$(TEST_LIBC_SYSTEM_SRCS_TEST:%.c=o/$(MODE)/%.ok)
+
+TEST_LIBC_SYSTEM_CHECKS =					\
+	$(TEST_LIBC_SYSTEM_SRCS_TEST:%.c=o/$(MODE)/%.runs)
+
+TEST_LIBC_SYSTEM_DIRECTDEPS =					\
+	LIBC_CALLS						\
+	LIBC_INTRIN						\
+	LIBC_LOG						\
+	LIBC_MEM						\
+	LIBC_NEXGEN32E						\
+	LIBC_RUNTIME						\
+	LIBC_STDIO						\
+	LIBC_STDIO						\
+	LIBC_SYSTEM						\
+	LIBC_SYSV						\
+	LIBC_TESTLIB						\
+	LIBC_THREAD						\
+	LIBC_X							\
+	THIRD_PARTY_MUSL					\
+	THIRD_PARTY_TR						\
+
+TEST_LIBC_SYSTEM_DEPS :=					\
+	$(call uniq,$(foreach x,$(TEST_LIBC_SYSTEM_DIRECTDEPS),$($(x))))
+
+o/$(MODE)/test/libc/system/system.pkg:				\
+		$(TEST_LIBC_SYSTEM_OBJS)			\
+		$(foreach x,$(TEST_LIBC_SYSTEM_DIRECTDEPS),$($(x)_A).pkg)
+
+o/$(MODE)/test/libc/system/%.dbg:				\
+		$(TEST_LIBC_SYSTEM_DEPS)			\
+		o/$(MODE)/test/libc/system/%.o			\
+		o/$(MODE)/test/libc/system/system.pkg		\
+		o/$(MODE)/tool/build/echo.zip.o			\
+		$(LIBC_TESTMAIN)				\
+		$(CRT)						\
+		$(APE_NO_MODIFY_SELF)
+	@$(APELINK)
+
+o/$(MODE)/test/libc/system/popen_test.dbg:			\
+		$(TEST_LIBC_SYSTEM_DEPS)			\
+		o/$(MODE)/test/libc/system/popen_test.o		\
+		o/$(MODE)/test/libc/system/system.pkg		\
+		o/$(MODE)/tool/build/echo.zip.o			\
+		$(LIBC_TESTMAIN)				\
+		$(CRT)						\
+		$(APE_NO_MODIFY_SELF)
+	@$(APELINK)
+
+o/$(MODE)/test/libc/system/system_test.dbg:			\
+		$(TEST_LIBC_SYSTEM_DEPS)			\
+		o/$(MODE)/test/libc/system/system_test.o	\
+		o/$(MODE)/test/libc/system/system.pkg		\
+		o/$(MODE)/tool/build/echo.zip.o			\
+		o/$(MODE)/tool/build/cocmd.zip.o		\
+		o/$(MODE)/tool/build/false.zip.o		\
+		$(LIBC_TESTMAIN)				\
+		$(CRT)						\
+		$(APE_NO_MODIFY_SELF)
+	@$(APELINK)
+
+$(TEST_LIBC_SYSTEM_OBJS): test/libc/system/BUILD.mk
+
+.PHONY: o/$(MODE)/test/libc/system
+o/$(MODE)/test/libc/system:					\
+		$(TEST_LIBC_SYSTEM_BINS)			\
+		$(TEST_LIBC_SYSTEM_CHECKS)
diff --git a/test/libc/stdio/popen_test.c b/test/libc/system/popen_test.c
similarity index 100%
rename from test/libc/stdio/popen_test.c
rename to test/libc/system/popen_test.c
diff --git a/test/libc/proc/system_test.c b/test/libc/system/system_test.c
similarity index 100%
rename from test/libc/proc/system_test.c
rename to test/libc/system/system_test.c
diff --git a/test/libc/thread/BUILD.mk b/test/libc/thread/BUILD.mk
index 78e18536159..1ac2769beef 100644
--- a/test/libc/thread/BUILD.mk
+++ b/test/libc/thread/BUILD.mk
@@ -41,6 +41,7 @@ TEST_LIBC_THREAD_DIRECTDEPS =				\
 	LIBC_SOCK					\
 	LIBC_STDIO					\
 	LIBC_STR					\
+	LIBC_SYSTEM					\
 	LIBC_SYSV					\
 	LIBC_SYSV_CALLS					\
 	LIBC_TESTLIB					\
@@ -49,7 +50,7 @@ TEST_LIBC_THREAD_DIRECTDEPS =				\
 	THIRD_PARTY_LIBCXXABI				\
 	THIRD_PARTY_NSYNC				\
 	THIRD_PARTY_NSYNC_MEM				\
-	THIRD_PARTY_TZ
+	THIRD_PARTY_TZ					\
 
 TEST_LIBC_THREAD_DEPS :=				\
 	$(call uniq,$(foreach x,$(TEST_LIBC_THREAD_DIRECTDEPS),$($(x))))
diff --git a/third_party/awk/BUILD.mk b/third_party/awk/BUILD.mk
index 591a6f41d8d..da4affc2269 100644
--- a/third_party/awk/BUILD.mk
+++ b/third_party/awk/BUILD.mk
@@ -22,11 +22,12 @@ THIRD_PARTY_AWK_A_DIRECTDEPS =				\
 	LIBC_RUNTIME					\
 	LIBC_STDIO					\
 	LIBC_STR					\
+	LIBC_SYSTEM					\
 	LIBC_SYSV					\
 	LIBC_TINYMATH					\
-	TOOL_ARGS					\
 	THIRD_PARTY_GDTOA				\
 	THIRD_PARTY_MUSL				\
+	TOOL_ARGS					\
 
 THIRD_PARTY_AWK_A_DEPS :=				\
 	$(call uniq,$(foreach x,$(THIRD_PARTY_AWK_A_DIRECTDEPS),$($(x))))
diff --git a/third_party/ctags/BUILD.mk b/third_party/ctags/BUILD.mk
index 826ceefe401..973ce3a02e6 100644
--- a/third_party/ctags/BUILD.mk
+++ b/third_party/ctags/BUILD.mk
@@ -19,13 +19,14 @@ THIRD_PARTY_CTAGS_DIRECTDEPS =				\
 	LIBC_LOG					\
 	LIBC_MEM					\
 	LIBC_NEXGEN32E					\
-	LIBC_RUNTIME					\
 	LIBC_PROC					\
+	LIBC_RUNTIME					\
 	LIBC_STDIO					\
 	LIBC_STR					\
+	LIBC_SYSTEM					\
 	LIBC_SYSV					\
 	THIRD_PARTY_MUSL				\
-	THIRD_PARTY_REGEX
+	THIRD_PARTY_REGEX				\
 
 THIRD_PARTY_CTAGS_DEPS :=				\
 	$(call uniq,$(foreach x,$(THIRD_PARTY_CTAGS_DIRECTDEPS),$($(x))))
diff --git a/third_party/less/BUILD.mk b/third_party/less/BUILD.mk
index b183fad6ccc..45990d4ed0d 100644
--- a/third_party/less/BUILD.mk
+++ b/third_party/less/BUILD.mk
@@ -26,6 +26,7 @@ THIRD_PARTY_LESS_DIRECTDEPS =				\
 	LIBC_RUNTIME					\
 	LIBC_STDIO					\
 	LIBC_STR					\
+	LIBC_SYSTEM					\
 	LIBC_SYSV					\
 	THIRD_PARTY_MUSL				\
 	THIRD_PARTY_NCURSES				\
diff --git a/third_party/lua/BUILD.mk b/third_party/lua/BUILD.mk
index 805eacb3fd5..1adb27977b0 100644
--- a/third_party/lua/BUILD.mk
+++ b/third_party/lua/BUILD.mk
@@ -131,6 +131,7 @@ THIRD_PARTY_LUA_A_DIRECTDEPS =					\
 	LIBC_RUNTIME						\
 	LIBC_STDIO						\
 	LIBC_STR						\
+	LIBC_SYSTEM						\
 	LIBC_SYSV						\
 	LIBC_THREAD						\
 	LIBC_TINYMATH						\
diff --git a/third_party/python/BUILD.mk b/third_party/python/BUILD.mk
index 8a636844cc0..48b0011767d 100644
--- a/third_party/python/BUILD.mk
+++ b/third_party/python/BUILD.mk
@@ -1176,12 +1176,13 @@ THIRD_PARTY_PYTHON_STAGE2_A_DIRECTDEPS =				\
 	LIBC_NT_KERNEL32						\
 	LIBC_PROC							\
 	LIBC_RUNTIME							\
-	LIBC_THREAD							\
 	LIBC_SOCK							\
 	LIBC_STDIO							\
 	LIBC_STR							\
+	LIBC_SYSTEM							\
 	LIBC_SYSV							\
 	LIBC_SYSV_CALLS							\
+	LIBC_THREAD							\
 	LIBC_TINYMATH							\
 	LIBC_X								\
 	NET_HTTP							\
@@ -1189,14 +1190,14 @@ THIRD_PARTY_PYTHON_STAGE2_A_DIRECTDEPS =				\
 	THIRD_PARTY_BZIP2						\
 	THIRD_PARTY_GDTOA						\
 	THIRD_PARTY_LINENOISE						\
-	THIRD_PARTY_MUSL						\
 	THIRD_PARTY_MBEDTLS						\
+	THIRD_PARTY_MUSL						\
 	THIRD_PARTY_PYTHON_STAGE1					\
 	THIRD_PARTY_SQLITE3						\
 	THIRD_PARTY_TZ							\
-	THIRD_PARTY_ZLIB						\
 	THIRD_PARTY_XED							\
-	TOOL_ARGS
+	THIRD_PARTY_ZLIB						\
+	TOOL_ARGS							\
 
 THIRD_PARTY_PYTHON_STAGE2_A_DEPS =					\
 	$(call uniq,$(foreach x,$(THIRD_PARTY_PYTHON_STAGE2_A_DIRECTDEPS),$($(x))))
diff --git a/third_party/sqlite3/BUILD.mk b/third_party/sqlite3/BUILD.mk
index 3410c4975ca..3ea4086fa47 100644
--- a/third_party/sqlite3/BUILD.mk
+++ b/third_party/sqlite3/BUILD.mk
@@ -52,6 +52,7 @@ THIRD_PARTY_SQLITE3_A_DIRECTDEPS =					\
 	LIBC_RUNTIME							\
 	LIBC_STDIO							\
 	LIBC_STR							\
+	LIBC_SYSTEM							\
 	LIBC_SYSV							\
 	LIBC_SYSV_CALLS							\
 	LIBC_THREAD							\
@@ -62,7 +63,7 @@ THIRD_PARTY_SQLITE3_A_DIRECTDEPS =					\
 	THIRD_PARTY_MUSL						\
 	THIRD_PARTY_TZ							\
 	THIRD_PARTY_ZLIB						\
-	TOOL_ARGS
+	TOOL_ARGS							\
 
 THIRD_PARTY_SQLITE3_A_DEPS :=						\
 	$(call uniq,$(foreach x,$(THIRD_PARTY_SQLITE3_A_DIRECTDEPS),$($(x))))
diff --git a/third_party/zip/BUILD.mk b/third_party/zip/BUILD.mk
index a2567c970c6..1a4ab4c2033 100644
--- a/third_party/zip/BUILD.mk
+++ b/third_party/zip/BUILD.mk
@@ -85,10 +85,11 @@ THIRD_PARTY_ZIP_DIRECTDEPS =			\
 	LIBC_LOG				\
 	LIBC_MEM				\
 	LIBC_NEXGEN32E				\
+	LIBC_PROC				\
 	LIBC_RUNTIME				\
 	LIBC_STDIO				\
-	LIBC_PROC				\
 	LIBC_STR				\
+	LIBC_SYSTEM				\
 	LIBC_SYSV				\
 	LIBC_X					\
 	THIRD_PARTY_BZIP2			\
diff --git a/tool/build/BUILD.mk b/tool/build/BUILD.mk
index 1f939f4b1eb..afd949f857e 100644
--- a/tool/build/BUILD.mk
+++ b/tool/build/BUILD.mk
@@ -42,6 +42,7 @@ TOOL_BUILD_DIRECTDEPS =							\
 	LIBC_SOCK							\
 	LIBC_STDIO							\
 	LIBC_STR							\
+	LIBC_SYSTEM							\
 	LIBC_SYSV							\
 	LIBC_SYSV_CALLS							\
 	LIBC_THREAD							\
@@ -60,7 +61,7 @@ TOOL_BUILD_DIRECTDEPS =							\
 	THIRD_PARTY_XED							\
 	THIRD_PARTY_ZLIB						\
 	THIRD_PARTY_ZLIB_GZ						\
-	TOOL_BUILD_LIB
+	TOOL_BUILD_LIB							\
 
 TOOL_BUILD_DEPS :=							\
 	$(call uniq,$(foreach x,$(TOOL_BUILD_DIRECTDEPS),$($(x))))