diff --git a/libsys/build/libc.d b/libsys/build/libc.d
deleted file mode 100644
index 848caf6..0000000
--- a/libsys/build/libc.d
+++ /dev/null
@@ -1 +0,0 @@
-build/libc.o: libc.cc libc.h types.h
diff --git a/libsys/build/libc.o b/libsys/build/libc.o
deleted file mode 100644
index 74b83a9..0000000
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diff --git a/libsys/build/libsys.a b/libsys/build/libsys.a
deleted file mode 100644
index 7b8a512..0000000
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diff --git a/libsys/build/outputstream.d b/libsys/build/outputstream.d
deleted file mode 100644
index 7b1d3a0..0000000
--- a/libsys/build/outputstream.d
+++ /dev/null
@@ -1,2 +0,0 @@
-build/outputstream.o: outputstream.cc outputstream.h stringbuffer.h \
- types.h
diff --git a/libsys/build/outputstream.o b/libsys/build/outputstream.o
deleted file mode 100644
index 99c4caf..0000000
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diff --git a/libsys/build/string.d b/libsys/build/string.d
deleted file mode 100644
index 54fd952..0000000
--- a/libsys/build/string.d
+++ /dev/null
@@ -1 +0,0 @@
-build/string.o: string.cc string.h types.h
diff --git a/libsys/build/string.o b/libsys/build/string.o
deleted file mode 100644
index cf9b3b5..0000000
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diff --git a/libsys/build/stringbuffer.d b/libsys/build/stringbuffer.d
deleted file mode 100644
index 9e00c33..0000000
--- a/libsys/build/stringbuffer.d
+++ /dev/null
@@ -1 +0,0 @@
-build/stringbuffer.o: stringbuffer.cc stringbuffer.h types.h
diff --git a/libsys/build/stringbuffer.o b/libsys/build/stringbuffer.o
deleted file mode 100644
index 0f54d08..0000000
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diff --git a/libsys/build/stub.asm.d b/libsys/build/stub.asm.d
deleted file mode 100644
index 8a0dadc..0000000
--- a/libsys/build/stub.asm.d
+++ /dev/null
@@ -1,2 +0,0 @@
-build/stub.asm.o : stub.asm
-
diff --git a/libsys/build/stub.asm.o b/libsys/build/stub.asm.o
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index 4641a8c..0000000
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