Linux build: Use sysroot when calculating dependencies

third_party/dpkg-dev/cputable

Index: third_party/dpkg-dev/cputable
diff --git a/third_party/dpkg-dev/cputable b/third_party/dpkg-dev/cputable
new file mode 100644
index 0000000000000000000000000000000000000000..fb5d276404d96a994209bce4dd9a515ea8b13ef5
--- /dev/null
+++ b/third_party/dpkg-dev/cputable
@@ -0,0 +1,42 @@
+# This file contains the table of known CPU names.
+#
+# Architecture names are formed as a combination of the system name
+# (from ostable) and CPU name (from this table) after mapping from
+# the Debian triplet (from triplettable).
+#
+# Column 1 is the Debian name for the CPU, used to form the cpu part in
+# the Debian triplet.
+# Column 2 is the GNU name for the CPU, used to output build and host
+# targets in ‘dpkg-architecture’.
+# Column 3 is an extended regular expression used to match against the
+# CPU part of the output of the GNU config.guess script.
+# Column 4 is the size (in bits) of the integers/pointers
+# Column 5 is the endianness (byte ordering in numbers)
+#
+# <Debian name>	<GNU name>	<config.guess regex>	<Bits>	<Endianness>
+i386		i486		(i[3456]86|pentium)	32	little
+ia64		ia64		ia64			64	little
+alpha		alpha		alpha.*			64	little
+amd64		x86_64		x86_64			64	little
+armeb		armeb		arm.*b			32	big
+arm		arm		arm.*			32	little
+arm64		aarch64		aarch64			64	little
+avr32		avr32		avr32			32	big
+hppa		hppa		hppa.*			32	big
+m32r		m32r		m32r			32	big
+m68k		m68k		m68k			32	big
+mips		mips		mips(eb)?		32	big
+mipsel		mipsel		mipsel			32	little
+mips64		mips64		mips64			64	big
+mips64el	mips64el	mips64el		64	little
+powerpc		powerpc		(powerpc|ppc)		32	big
+ppc64		powerpc64	(powerpc|ppc)64		64	big
+ppc64el		powerpc64le	powerpc64le		64	little
+s390		s390		s390			32	big
+s390x		s390x		s390x			64	big
+sh3		sh3		sh3			32	little
+sh3eb		sh3eb		sh3eb			32	big
+sh4		sh4		sh4			32	little
+sh4eb		sh4eb		sh4eb			32	big
+sparc		sparc		sparc			32	big
+sparc64		sparc64		sparc64			64	big