undefined reference to `gettid‘

undefined reference to `vtable for XXX‘

makefile 出现 undefined reference to ''

Qt报错： undefined reference to ‘xxx‘

CMake setup - undefined reference to pow()

undefined reference to `__isoc99_sscanf'

ubuntu gurobi link error undefined reference

error: undefined reference to `QAxObject::QAxObject(QObject*)'

undefined reference to `__system_property_get‘

QT 使用emit 报错 undefined reference