[124/124] LINK ./gn
ERROR at //build/util/branding.gni:26:11: Script returned non-zero exit code.
_result = exec_script("version.py",
          ^----------
Current dir: /home/florian/code/qt/dev/qtwebengine/src/3rdparty/chromium/tools/gn/out/Release/
Command: python -- /home/florian/code/qt/dev/qtwebengine/src/3rdparty/chromium/build/util/version.py -f ../../../../chrome/app/theme/chromium/BRANDING -t full_name = "@PRODUCT_FULLNAME@" short_name = "@PRODUCT_SHORTNAME@" bundle_id = "@MAC_BUNDLE_ID@" creator_code = "@MAC_CREATOR_CODE@" installer_full_name = "@PRODUCT_INSTALLER_FULLNAME@" installer_short_name = "@PRODUCT_INSTALLER_SHORTNAME@" 
Returned 1.
stderr:

  File "/home/florian/code/qt/dev/qtwebengine/src/3rdparty/chromium/build/util/version.py", line 71
    print repr(key), repr(val)
             ^
SyntaxError: invalid syntax

See //ui/base/BUILD.gn:10:1: whence it was imported.
import("//build/util/branding.gni")
^---------------------------------
See //BUILD.gn:74:5: which caused the file to be included.
    "//ui/base:ui_base_unittests",
    ^----------------------------
Command '['/home/florian/code/qt/dev/qtwebengine/src/3rdparty/chromium/tools/gn/out/Release/gn', 'gen', '/home/florian/code/qt/dev/qtwebengine/src/3rdparty/chromium/tools/gn/out/Release', '--args=use_qt=true is_component_build=false is_shared=true enable_nacl=false enable_remoting=false enable_reporting=false enable_web_speech=false enable_widevine=true use_allocator_shim=false use_allocator="none" v8_use_external_startup_data=false treat_warnings_as_errors=false enable_swiftshader=false use_custom_libcxx=false use_jumbo_build=true jumbo_file_merge_limit=8 jumbo_build_excluded=["browser","renderer"] enable_basic_printing=true enable_print_preview=true enable_pdf=true enable_plugins=true enable_spellcheck=true enable_webrtc=true proprietary_codecs=true ffmpeg_branding="Chrome" enable_precompiled_headers=true is_debug=false symbol_level=0 remove_webcore_debug_symbols=true remove_v8base_debug_symbols=true v8_use_snapshot=true enable_iterator_debugging=false use_cups=false use_gio=false use_gnome_keyring=false use_kerberos=false linux_use_bundled_binutils=false use_udev=true use_bundled_fontconfig=false is_clang=false custom_toolchain="/home/florian/code/qt/dev/qtwebengine/src/toolchain:host" host_cpu="x64" use_glib=false use_sysroot=false enable_session_service=false toolkit_views=false is_debug=false']' returned non-zero exit status 1
Project ERROR: GN build error!
make[3]: *** [Makefile:96: sub-gn-pro-make_first] Error 3
make[3]: Leaving directory '/home/florian/code/qt/dev/qtwebengine/src/buildtools'

diff --git a/chromium/build/util/version.py b/chromium/build/util/version.py
index 767412e93d..704e826488 100755
--- a/chromium/build/util/version.py
+++ b/chromium/build/util/version.py
@@ -68,7 +68,7 @@ def subst_template(contents, values):
     try:
       contents = contents.replace('@' + key + '@', val)
     except TypeError:
-      print repr(key), repr(val)
+      print(repr(key), repr(val))
   return contents