Qt 5.12.0 -> 5.12.1 regression: configure in 5.12.1 fails for opengles2 for rpi3

looking for library opengl_es2
Trying source 0 (type pkgConfig) of library opengl_es2 ...
pkg-config use disabled globally.
 => source produced no result.
Trying source 1 (type makeSpec) of library opengl_es2 ...
+ cd /build/config.tests/opengl_es2 && /build/bin/qmake "CONFIG -= qt debug_and_release app_bundle lib_bundle" "CONFIG += shared warn_off console single_arch" -early "CONFIG += cross_compile" 'QMAKE_USE += opengl_es2' 'QMAKE_LIBS_OPENGL_ES2 = -L=/opt/vc/lib -L=/opt/vc/lib -lGLESv2' 'QMAKE_INCDIR_OPENGL_ES2 = =/opt/vc/include =/opt/vc/include/interface/vcos/pthreads =/opt/vc/include/interface/vmcs_host/linux' /build/config.tests/opengl_es2
+ cd /build/config.tests/opengl_es2 && MAKEFLAGS= /usr/bin/make
> /usr/bin/g++ -c -march=armv8-a -mtune=cortex-a53 -mfpu=crypto-neon-fp-armv8 -mfloat-abi=hard -O2 -w -fPIC -I. -I=/opt/vc/include -I=/opt/vc/include/interface/vcos/pthreads -I=/opt/vc/include/interface/vmcs_host/linux -I/build/mkspecs/devices/linux-rasp-pi3-g++ -o main.o main.cpp
> /usr/bin/g++ -mfloat-abi=hard -Wl,-O1 -Wl,-rpath-link,/opt/vc/lib -Wl,-rpath-link,/usr/lib/arm-linux-gnueabihf -Wl,-rpath-link,/lib/arm-linux-gnueabihf -o opengl_es2 main.o -L=/opt/vc/lib -lGLESv2 
 => source accepted.
test config.qtbase_gui.libraries.opengl_es2 succeeded

looking for library opengl_es2
Trying source 0 (type pkgConfig) of library opengl_es2 ...
pkg-config use disabled globally.
 => source produced no result.
Trying source 1 (type makeSpec) of library opengl_es2 ...
Library path =/opt/vc/lib is invalid.
Library path =/opt/vc/lib is invalid.
None of [libGLESv2.so libGLESv2.a] found in [=/opt/vc/lib] and global paths.
 => source produced no result.
test config.qtbase_gui.libraries.opengl_es2 FAILED