[build] Pass -Zxz to dh_builddeb instead of dpkg-buildpackage.

Passing to the later only affects source packages.

Bug: #26953
Change-Id: I3ca94c3ddbed4493536d3db52df6ec92c2e72bbf
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/431302
Reviewed-by: Brian Quinlan <[email protected]>
Commit-Queue: Ryan Macnak <[email protected]>

Author: rmacnak-google

tools/debian_package/create_debian_package.py

@@ -59,10 +59,7 @@ def Main():
     GenerateCopyright(join(versiondir, 'debian', 'copyright'))
     GenerateChangeLog(join(versiondir, 'debian', 'changelog'), version)
 
-    # Explicitly choose xz compression because newer versions dpkg-buildpackage
-    # (on our bots) default to zstd, which is not supported by older versions
-    # of dpkg (on users machines).
-    cmd = ['dpkg-buildpackage', '-B', '-a', options.arch, '-us', '-uc', '-Zxz']
+    cmd = ['dpkg-buildpackage', '-B', '-a', options.arch, '-us', '-uc']
     env = os.environ.copy()
     env["LIB_DIR"] = options.lib_dir
     process = subprocess.check_call(cmd, cwd=versiondir, env=env)

tools/debian_package/debian/rules

@@ -16,6 +16,12 @@ override_dh_auto_build:
 # Nop
 override_dh_auto_test:
 
+# Explicitly choose xz compression because newer versions dpkg-buildpackage
+# (on our bots) default to zstd, which is not supported by older versions
+# of dpkg (on users machines).
+override_dh_builddeb:
+	dh_builddeb -- -Zxz
+
 # Nop
 override_dh_strip: