[oe] [meta-qt5] File name too long error while building qtwebengine

[Adam Lee]

I am on meta-qt5 master (# 06d1c47396508), but this happens on Rocko as
well.

*| ninja: error:
WriteFile(__third_party_WebKit_Source_bindings_modules_v8_bindings_modules_v8_generated_init_partial__home_build_tisdk-rocko-glibc_work_armv7ahf-neon-oe-linux-gnueabi_qtwebengine_5.9.2_gitAUTOINC_c11c2c8981_cfe8*
*c60903-r0_build_src_toolchain_target__rule.rsp): Unable to create file.
File name too long*
| ninja: build stopped: .
| Makefile.gn_run:321: recipe for target 'run_ninja' failed
| make[3]: *** [run_ninja] Error 1
| make[3]: Leaving directory
'/home/build/tisdk-rocko-glibc/work/armv7ahf-neon-oe-linux-gnueabi/qtwebengine/5.9.2+gitAUTOINC+c11c2c8981_cfe8c60903-r0/build/src/core'
| Makefile:80: recipe for target 'sub-gn_run-pro-make_first' failed
| make[2]: *** [sub-gn_run-pro-make_first] Error 2
| make[2]: Leaving directory
'/home/build/tisdk-rocko-glibc/work/armv7ahf-neon-oe-linux-gnueabi/qtwebengine/5.9.2+gitAUTOINC+c11c2c8981_cfe8c60903-r0/build/src/core'
| Makefile:78: recipe for target 'sub-core-make_first' failed
| make[1]: *** [sub-core-make_first] Error 2
| make[1]: Leaving directory
'/home/build/tisdk-rocko-glibc/work/armv7ahf-neon-oe-linux-gnueabi/qtwebengine/5.9.2+gitAUTOINC+c11c2c8981_cfe8c60903-r0/build/src'
| Makefile:46: recipe for target 'sub-src-make_first' failed
| make: *** [sub-src-make_first] Error 2
| ERROR: oe_runmake failed
| WARNING:
/home/build/tisdk-rocko-glibc/work/armv7ahf-neon-oe-linux-gnueabi/qtwebengine/5.9.2+gitAUTOINC+c11c2c8981_cfe8c60903-r0/temp/run.do_compile.35312:1
exit 1 from 'exit 1'
| ERROR: Function failed: do_compile (log file is located at
/home/build/tisdk-rocko-glibc/work/armv7ahf-neon-oe-linux-gnueabi/qtwebengine/5.9.2+gitAUTOINC+c11c2c8981_cfe8c60903-r0/temp/log.do_compile.35312)
ERROR: Task
(/home/build/tisdk-rocko/sources/meta-qt5/recipes-qt/qt5/qtwebengine_git.bb:do_compile)
failed with exit code '1'
NOTE: Tasks Summary: Attempted 1972 tasks of which 1965 didn't need to be
rerun and 1 failed.

Adam