LiquidCrystal\LCD.cpp.o:(.rodata._ZTV3LCD+0xe): undefined reference to `__cxa_pure_virtual'

[carbogit]

I am getting this error on compile

LiquidCrystal\LCD.cpp.o:(.rodata._ZTV3LCD+0xe): undefined reference to `__cxa_pure_virtual'

[KipK]

Have you installed the LiquidCrystal lib provided with the source files ? It's a modified one which works with i2c lcds too.

[carbogit]

Yes, it resides in \libraries If it was not present there the error message would be

GhettoStation:73: error: 'LiquidCrystal_I2C' does not name a type Lcd.ino: In function 'void init_lcdscreen()': Lcd:10: error: 'LCD' was not declared in this scope Lcd.ino: In function 'void refresh_lcd()': Lcd:56: error: 'LCD' was not declared in this scope

[KipK]

have you deleted previous liquidcrystal installed by default ? Just to be sure you've not mixed some files.

What Arduino version do you use ? I use 1.0.5.

[carbogit]

arduino-1.0.5-r2. I have not tried 1.5.5 BETA since teensyduino refuses to install for that version.

I have deleted both LiquidCrystal and LiquidCrystalfast folders from arduino-1.0.5-r2\libraries

[KipK]

I'm installing r2 now to try to reproduce this.

[KipK]

ok got same error with 1.0.5-r2. not with 1.0.5

Got an idea how to fix this, hold on.

[KipK]

looks a bit complicated for now. It only happend with Teensy. For now grab arduino 1.0.5 , this one works here. I'll try to figure this out later.

cheers.

[KipK]

Here's the link:

https://code.google.com/p/arduino/downloads/detail?name=arduino-1.0.5-windows.exe&can=2&q=

[KipK]

Ok, found it.

in your Arduino folder, hardware\teensy\cores\teensy\new.cpp uncomment all the latest lines:

int cxa_guard_acquire(guard g) {return !(char _)(g);}; void cxa_guard_release (guard g) {_(char )g = 1;}; void cxa_guard_abort (guard *) {};

void __cxa_pure_virtual(void) {};

[KipK]

So, it's not only for arduino 1.0.5-rc2. I've checked in my older ones and it was already commented out by default.

They've probably changed it in latest teensyduino distribution.

Thanks for pointing it out.

[carbogit]

Compile done, thank you!