[oe] [meta-qt5] qtsvg build failure when building meta-toolchain-qt5

[Ryan Elkholy, PhD, PE]

Hello,

I am trying to build meta-toolchain-qt5, however qtsvg_git is not able to
compile due to the following errors:

/home/ryan/development/poky-build/tmp/work/corei7-64-poky-linux/qtsvg/5.5.1+gitAUTOINC+b5d689eaaf-r0/git/src/svg/qsvgtinydocument.cpp:102:
error: undefined reference to 'inflateInit2_'
/home/ryan/development/poky-build/tmp/work/corei7-64-poky-linux/qtsvg/5.5.1+gitAUTOINC+b5d689eaaf-r0/git/src/svg/qsvgtinydocument.cpp:129:
error: undefined reference to 'inflate'
/home/ryan/development/poky-build/tmp/work/corei7-64-poky-linux/qtsvg/5.5.1+gitAUTOINC+b5d689eaaf-r0/git/src/svg/qsvgtinydocument.cpp:157:
error: undefined reference to 'inflateEnd'
/home/ryan/development/poky-build/tmp/work/corei7-64-poky-linux/qtsvg/5.5.1+gitAUTOINC+b5d689eaaf-r0/git/src/svg/qsvgtinydocument.cpp:135:
error: undefined reference to 'inflateEnd'
/home/ryan/development/poky-build/tmp/work/corei7-64-poky-linux/qtsvg/5.5.1+gitAUTOINC+b5d689eaaf-r0/git/src/svg/qsvgtinydocument.cpp:149:
error: undefined reference to 'inflateReset'

I have found that the undefined references (e.g. InflateInit2_) are
supposed to be defined in "zlib" which is included in qsvgtinydocument.cpp.
I further included zlib in my IMAGE_INSTALL_append under local.conf, but
nothing is working.

Does anyone know of any solution to get rid of these errors?

Thanks!