qt5.git doesn't build for iOS if you haven't set up the build environment prerequisites

cd tools/ && ( test -e Makefile || /work/build/qtbase/bin/qmake /work/build/qtxmlpatterns/tools/tools.pro -o Makefile ) && make -f Makefile 
cd xmlpatternsvalidator/ && ( test -e Makefile || /work/build/qtbase/bin/qmake /work/build/qtxmlpatterns/tools/xmlpatternsvalidator/xmlpatternsvalidator.pro -o Makefile ) && make -f Makefile 
cd xmlpatterns/ && ( test -e Makefile || /work/build/qtbase/bin/qmake /work/build/qtxmlpatterns/tools/xmlpatterns/xmlpatterns.pro -o Makefile ) && make -f Makefile 
** BUILD FAILED **

** BUILD FAILED **


The following build commands failed:

The following build commands failed:
	Check dependencies
	Check dependencies
(1 failure)
(1 failure)
=== BUILD NATIVE TARGET xmlpatternsvalidator OF PROJECT xmlpatternsvalidator WITH THE DEFAULT CONFIGURATION (Release) ===
Check dependencies
Code Sign error: The identity 'iPhone Developer' doesn't match any valid, non-expired certificate/private key pair in your keychains


=== BUILD NATIVE TARGET xmlpatterns OF PROJECT xmlpatterns WITH THE DEFAULT CONFIGURATION (Release) ===
Check dependencies
Code Sign error: The identity 'iPhone Developer' doesn't match any valid, non-expired certificate/private key pair in your keychains


make[3]: *** [xcodebuild_build] Error 65
make[3]: *** [xcodebuild_build] Error 65
make[2]: *** [sub-xmlpatternsvalidator-make_first] Error 2
make[2]: *** Waiting for unfinished jobs....
make[2]: *** [sub-xmlpatterns-make_first] Error 2
make[1]: *** [sub-tools-make_first] Error 2
make: *** [module-qtxmlpatterns-make_first] Error 2
make -j6 exited with status 512 at _qtqa_latest/scripts/qt/qtmod_test.pl line 1006.