I use the follow configure line:

configure -debug-and-release -static -opengl desktop -no-icu -openssl-linked -I E:\OpenSsl\include -L E:\OpenSsl\lib OPENSSL_LIBS="-lUser32 -lAdvapi32 -lGdi32" OPENSSL_LIBS_DEBUG="-llibeay32MTd -lssleay32MTd" OPENSSL_LIBS_RELEASE="-llibeay32MT -lssleay32MT" -nomake examples -nomake tests -platform win32-msvc2015 -mp

Then I open "5.9.0\qtbase\src\network\qtnetwork-config.pri" file, it shows:

QMAKE_LIBS_OPENSSL = -lUser32 -lAdvapi32 -lGdi32
QMAKE_LIBS_OPENSSL_DEBUG = 
QMAKE_LIBS_OPENSSL_RELEASE = 

The "OPENSSL_LIBS_DEBUG" and "OPENSSL_LIBS_RELEASE" is invalid.

So, it'll cause build break.