diff --git a/strace-4.5.20/Makefile b/strace-4.5.20/Makefile
new file mode 100644
index 0000000..38510eb
--- /dev/null
+++ b/strace-4.5.20/Makefile
@@ -0,0 +1,91 @@
+#
+#    Copyright (c) 2010-2011 Nest, Inc.
+#    All rights reserved.
+#
+#    This document is the property of Nest. It is considered
+#    confidential and proprietary information.
+#
+#    This document may not be reproduced or transmitted in any form,
+#    in whole or in part, without the express written permission of
+#    Nest.
+#
+#    Description:
+#      This file is the makefile for the system call tracer (strace).
+#
+
+BuildConfigSpecialized	:= No
+BuildProductSpecialized	:= No
+
+include pre.mak
+
+PackageName		:= strace
+
+PackageExtension	:= tar.bz2
+PackageSeparator	:= -
+
+PackagePatchArgs	:=
+
+PackageArchive		:= $(PackageName).$(PackageExtension)
+PackageSourceDir	:= $(PackageName)$(PackageSeparator)$(PackageVersion)
+
+PackageBuildMakefile	= $(call GenerateBuildPaths,Makefile)
+
+CleanPaths		+= $(PackageLicenseFile)
+
+all: $(PackageDefaultGoal)
+
+# Generate the package license contents.
+
+$(PackageSourceDir)/COPYRIGHT: source
+
+$(PackageLicenseFile): $(PackageSourceDir)/COPYRIGHT
+	$(copy-result)
+
+# Extract the source from the archive and apply patches, if any.
+
+$(PackageSourceDir): $(PackageArchive) $(PackagePatchPaths)
+	$(expand-and-patch-package)
+
+# Prepare the sources.
+
+.PHONY: source
+source: | $(PackageSourceDir)
+
+# Patch the sources, if necessary.
+
+.PHONY: patch
+patch: source
+
+# Generate the package build makefile.
+
+$(PackageBuildMakefile): | $(PackageSourceDir) $(BuildDirectory)
+	$(Verbose)cd $(BuildDirectory) && \
+	$(CURDIR)/$(PackageSourceDir)/configure \
+	CC=$(CC) STRIP=$(STRIP) \
+	--build=$(HostTuple) \
+	--host=$(TargetTuple) \
+	--prefix=/usr
+
+# Configure the source for building.
+
+.PHONY: configure
+configure: source $(PackageBuildMakefile)
+
+# Build the source.
+
+.PHONY: build
+build: configure
+	$(Verbose)$(MAKE) -C $(BuildDirectory) all
+
+# Stage the build to a temporary installation area.
+
+.PHONY: stage
+stage: build | $(ResultDirectory)
+	$(Verbose)$(MAKE) -C $(BuildDirectory) DESTDIR=$(ResultDirectory) install
+
+clean:
+	$(Verbose)$(RM) $(RMFLAGS) -r $(PackageSourceDir)
+	$(Verbose)$(RM) $(RMFLAGS) -r $(BuildDirectory)
+	$(Verbose)$(RM) $(RMFLAGS) -r $(ResultDirectory)
+
+include post.mak
diff --git a/strace-4.5.20/strace.tar.bz2 b/strace-4.5.20/strace.tar.bz2
new file mode 100644
index 0000000..48139dc
--- /dev/null
+++ b/strace-4.5.20/strace.tar.bz2
Binary files differ
diff --git a/strace-4.5.20/strace.url b/strace-4.5.20/strace.url
new file mode 100644
index 0000000..1b8bd73
--- /dev/null
+++ b/strace-4.5.20/strace.url
@@ -0,0 +1 @@
+http://download.sourceforge.net/strace/strace-4.5.20.tar.bz2
diff --git a/strace-4.5.20/strace.version b/strace-4.5.20/strace.version
new file mode 100644
index 0000000..195a8c7
--- /dev/null
+++ b/strace-4.5.20/strace.version
@@ -0,0 +1 @@
+4.5.20