[Paparazzi-devel] Problem compiling with a custom written subroutine (zamboni-survey)

[Jorn Anke]

Hi,

After following Christophes advice, I had my setup working.

Then, after changing from the stable branch to the master;
-----------------------------------------------------------------------
Paparazzi version v4.9_devel-646-g4733bc4-dirty
-----------------------------------------------------------------------

I have an old error-message re-appearing;

LD /home/jorn/paparazzi/var/My_Lisa_Skywalker/ap/ap.elf
/home/jorn/paparazzi/var/My_Lisa_Skywalker/ap/subsystems/nav.o: In function `auto_nav':
/home/jorn/paparazzi/var/My_Lisa_Skywalker/generated/flight_plan.h:191: undefined reference to `init_zamboni_survey'
/home/jorn/paparazzi/var/My_Lisa_Skywalker/generated/flight_plan.h:195: undefined reference to `zamboni_survey'
collect2: ld returned 1 exit status
make[1]: *** [/home/jorn/paparazzi/var/My_Lisa_Skywalker/ap/ap.elf] Error 1
make[1]: Leaving directory `/home/jorn/paparazzi/sw/airborne'
make: *** [ap.compile] Error 2
make: Leaving directory `/home/jorn/paparazzi'

FAILED 'make -C /home/jorn/paparazzi -f Makefile.ac AIRCRAFT=My_Lisa_Skywalker ap.compile' with code 2

______________

The; /conf/firmwares/subsystems/fixedwing/navigation_extra.makefile, is not changed since from before. Looks like this;

# Hey Emacs, this is a -*- makefile -*-

# standard and extra fixed wing navigation


#add these to all targets

$(TARGET).CFLAGS += -DNAV
$(TARGET).srcs += $(SRC_SUBSYSTEMS)/nav.c
$(TARGET).srcs += $(SRC_SUBSYSTEMS)/navigation/common_flight_plan.c
$(TARGET).srcs += $(SRC_SUBSYSTEMS)/navigation/traffic_info.c
$(TARGET).srcs += $(SRC_SUBSYSTEMS)/navigation/nav_survey_rectangle.c $(SRC_SUBSYSTEMS)/navigation/nav_line.c

$(TARGET).srcs += $(SRC_SUBSYSTEMS)/navigation/nav_cube.c
$(TARGET).srcs += $(SRC_SUBSYSTEMS)/navigation/discsurvey.c
$(TARGET).srcs += $(SRC_SUBSYSTEMS)/navigation/OSAMNav.c
$(TARGET).srcs += $(SRC_SUBSYSTEMS)/navigation/snav.c
$(TARGET).srcs += $(SRC_SUBSYSTEMS)/navigation/spiral.c
$(TARGET).srcs += $(SRC_SUBSYSTEMS)/navigation/poly_survey_adv.c
$(TARGET).srcs += $(SRC_SUBSYSTEMS)/navigation/gls.c
$(TARGET).srcs += $(SRC_SUBSYSTEMS)/navigation/border_line.c
$(TARGET).srcs += $(SRC_SUBSYSTEMS)/navigation/zamboni_survey.c


So, once again, anyone who can tell what I have been doing wrong this time?


Cheers

Jorn

---

From:	Christophe De Wagter
Subject:	Re: [Paparazzi-devel] Interest for a new survey pattern? (Zamboni-survey)
Date:	Thu, 3 Jan 2013 20:22:38 +0100

---

It is an LD error, meaning not a compile but a linking error. The linker (program that puts all separatly compiled functions together) complains it does not find 2 functions... In other words, you did not add your subsystems/navigation/zamboni_survey.c  to the list of files that need to be compiled in this case. In even other words it is not in the makefile. You can add it for instance in /conf/firmwares/subsystems/fixedwing/navigation_extra.makefile or make a new subsystem makefile for just your files. Or alternatively add a <makefile> section in your airframe file containing ap.srcs += subsystems/navigation/zamboni_survey.c

-Christophe