!cross_compile { TRY_INCLUDEPATHS = /include /usr/include /usr/local/include $$QMAKE_INCDIR $$INCLUDEPATH # LSB doesn't allow using headers from /include or /usr/include linux-lsb-g++:TRY_INCLUDEPATHS = $$QMAKE_INCDIR $$INCLUDEPATH for(p, TRY_INCLUDEPATHS) { pp = $$join(p, "", "", "/openssl") exists($$pp):INCLUDEPATH *= $$p } }