LDR_SUPPORT=1 build error

[mcspr]

Bug description
https://travis-ci.org/mcspr/espurna-nightly-builder/builds/536623861
https://travis-ci.org/mcspr/espurna-nightly-builder/jobs/536623863#L698-L744

Build log

* espurna-1.13.6-dev-psh-wifi-sensor.bin --- In file included from espurna/config/sensors.h:1093:0,
from espurna/config/all.h:36,
from /home/travis/build/mcspr/espurna-nightly-builder/espurna/code/espurna/espurna.ino:22:
espurna/config/../sensors/LDRSensor.h:29:39: error: expected class-name before '{' token
class LDRSensor : public AnalogSensor {
^
espurna/config/../sensors/LDRSensor.h: In constructor 'LDRSensor::LDRSensor()':
espurna/config/../sensors/LDRSensor.h:37:16: error: class 'LDRSensor' does not have any field named 'AnalogSensor'
LDRSensor(): AnalogSensor() {
^
espurna/config/../sensors/LDRSensor.h:38:4: error: '_count' was not declared in this scope
_count = 1;
^
espurna/config/../sensors/LDRSensor.h:39:4: error: '_sensor_id' was not declared in this scope
_sensor_id = SENSOR_LDR_ID;
^
espurna/config/../sensors/LDRSensor.h: In member function 'double LDRSensor::value(unsigned char)':
espurna/config/../sensors/LDRSensor.h:157:25: error: '_read' was not declared in this scope
double read = _read();
^
/home/travis/build/mcspr/espurna-nightly-builder/espurna/code/espurna/sensor.ino: In function 'void _sensorLoad()':
/home/travis/build/mcspr/espurna-nightly-builder/espurna/code/espurna/sensor.ino:689:17: error: 'class LDRSensor' has no member named 'setSamples'
sensor->setSamples(LDR_SAMPLES);
^
/home/travis/build/mcspr/espurna-nightly-builder/espurna/code/espurna/sensor.ino:690:17: error: 'class LDRSensor' has no member named 'setDelay'
sensor->setDelay(LDR_DELAY);
^
/home/travis/build/mcspr/espurna-nightly-builder/espurna/code/espurna/sensor.ino:695:34: error: no matching function for call to 'std::vector<BaseSensor*>::push_back(LDRSensor*&)'
_sensors.push_back(sensor);
^
/home/travis/build/mcspr/espurna-nightly-builder/espurna/code/espurna/sensor.ino:695:34: note: candidates are:
In file included from /home/travis/.platformio/packages/toolchain-xtensa/xtensa-lx106-elf/include/c++/4.8.2/vector:64:0,
from /home/travis/pio-libdeps/ESP Async WebServer/src/WebResponseImpl.h:29,
from /home/travis/pio-libdeps/ESP Async WebServer/src/ESPAsyncWebServer.h:442,
from espurna/config/prototypes.h:184,
from espurna/config/all.h:35,
from /home/travis/build/mcspr/espurna-nightly-builder/espurna/code/espurna/espurna.ino:22:
/home/travis/.platformio/packages/toolchain-xtensa/xtensa-lx106-elf/include/c++/4.8.2/bits/stl_vector.h:901:7: note: void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = BaseSensor*; _Alloc = std::allocator<BaseSensor*>; std::vector<_Tp, _Alloc>::value_type = BaseSensor*]
push_back(const value_type& __x)
^
/home/travis/.platformio/packages/toolchain-xtensa/xtensa-lx106-elf/include/c++/4.8.2/bits/stl_vector.h:901:7: note:   no known conversion for argument 1 from 'LDRSensor*' to 'BaseSensor* const&'
/home/travis/.platformio/packages/toolchain-xtensa/xtensa-lx106-elf/include/c++/4.8.2/bits/stl_vector.h:919:7: note: void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = BaseSensor*; _Alloc = std::allocator<BaseSensor*>; std::vector<_Tp, _Alloc>::value_type = BaseSensor*]
push_back(value_type&& __x)
^
/home/travis/.platformio/packages/toolchain-xtensa/xtensa-lx106-elf/include/c++/4.8.2/bits/stl_vector.h:919:7: note:   no known conversion for argument 1 from 'LDRSensor*' to 'BaseSensor*&&'
*** [.pioenvs/psh-wifi-sensor/src/espurna.ino.cpp.o] Error 1
========================== [ERROR] Took 5.32 seconds ==========================

Steps to reproduce
pio run -e psh-wifi-sensor

Tools used

• IDE & version PIO, IDE with LDR_SUPPORT=1