configuring the CPATH environment variable

[reymalahay]

hi all,

this question was initially asked in the AUnit repo:

what is the correct way to configure the CPATH so that all os aunit's header dependencies are correctly referenced? my CPATH environment variable is currently configured as follows:

export CPATH=/home/reymalahay/Arduino/libraries/AUnit/src

but i keep getting the error listed below when running my tests in EpoxyDuino.

/usr/bin/ld: reymalahay_lab1_code_test.o: warning: relocation against `_ZN5aunit7Printer8sPrinterE' in read-only section `.text._ZN5aunit7Printer10setPrinterEP5Print[_ZN5aunit7Printer10setPrinterEP5Print]'
/usr/bin/ld: reymalahay_lab1_code_test.o: in function `test_correct::once()':
reymalahay_lab1_code_test.ino:(.text+0x6b): undefined reference to `aunit::internal::compareEqual(int, int)'
/usr/bin/ld: reymalahay_lab1_code_test.ino:(.text+0x8b): undefined reference to `aunit::Assertion::assertion(char const*, unsigned short, int, char const*, bool (*)(int, int), int)'
/usr/bin/ld: reymalahay_lab1_code_test.o: in function `test_incorrect::once()':
reymalahay_lab1_code_test.ino:(.text+0x105): undefined reference to `aunit::internal::compareNotEqual(int, int)'
/usr/bin/ld: reymalahay_lab1_code_test.ino:(.text+0x125): undefined reference to `aunit::Assertion::assertion(char const*, unsigned short, int, char const*, bool (*)(int, int), int)'
/usr/bin/ld: reymalahay_lab1_code_test.o: in function `aunit::Printer::getPrinter()':
reymalahay_lab1_code_test.ino:(.text._ZN5aunit7Printer10getPrinterEv[_ZN5aunit7Printer10getPrinterEv]+0xb): undefined reference to `aunit::Printer::sPrinter'
/usr/bin/ld: reymalahay_lab1_code_test.o: in function `aunit::Printer::setPrinter(Print*)':
reymalahay_lab1_code_test.ino:(.text._ZN5aunit7Printer10setPrinterEP5Print[_ZN5aunit7Printer10setPrinterEP5Print]+0x13): undefined reference to `aunit::Printer::sPrinter'
/usr/bin/ld: reymalahay_lab1_code_test.o: in function `aunit::Test::init(__FlashStringHelper const*)':
reymalahay_lab1_code_test.ino:(.text._ZN5aunit4Test4initEPK19__FlashStringHelper[_ZN5aunit4Test4initEPK19__FlashStringHelper]+0x69): undefined reference to `aunit::Test::insert()'
/usr/bin/ld: reymalahay_lab1_code_test.o: in function `aunit::Assertion::Assertion()':
reymalahay_lab1_code_test.ino:(.text._ZN5aunit9AssertionC2Ev[_ZN5aunit9AssertionC5Ev]+0x18): undefined reference to `aunit::Test::Test()'
/usr/bin/ld: reymalahay_lab1_code_test.o: in function `aunit::TestOnce::TestOnce()':
reymalahay_lab1_code_test.ino:(.text._ZN5aunit8TestOnceC2Ev[_ZN5aunit8TestOnceC5Ev]+0x1f): undefined reference to `vtable for aunit::TestOnce'
/usr/bin/ld: reymalahay_lab1_code_test.o: in function `aunit::TestRunner::run()':
reymalahay_lab1_code_test.ino:(.text._ZN5aunit10TestRunner3runEv[_ZN5aunit10TestRunner3runEv]+0x9): undefined reference to `aunit::TestRunner::getRunner()'
/usr/bin/ld: reymalahay_lab1_code_test.o: in function `aunit::TestRunner::runTest()':
reymalahay_lab1_code_test.ino:(.text._ZN5aunit10TestRunner7runTestEv[_ZN5aunit10TestRunner7runTestEv]+0x33): undefined reference to `aunit::TestRunner::printStartRunner() const'
/usr/bin/ld: reymalahay_lab1_code_test.ino:(.text._ZN5aunit10TestRunner7runTestEv[_ZN5aunit10TestRunner7runTestEv]+0x40): undefined reference to `aunit::Test::getRoot()'
/usr/bin/ld: reymalahay_lab1_code_test.ino:(.text._ZN5aunit10TestRunner7runTestEv[_ZN5aunit10TestRunner7runTestEv]+0x79): undefined reference to `aunit::TestRunner::resolveRun() const'
/usr/bin/ld: reymalahay_lab1_code_test.ino:(.text._ZN5aunit10TestRunner7runTestEv[_ZN5aunit10TestRunner7runTestEv]+0xc2): undefined reference to `aunit::Test::getRoot()'
/usr/bin/ld: reymalahay_lab1_code_test.ino:(.text._ZN5aunit10TestRunner7runTestEv[_ZN5aunit10TestRunner7runTestEv]+0x383): undefined reference to `aunit::Test::resolve()'
/usr/bin/ld: reymalahay_lab1_code_test.o: in function `aunit::TestRunner::setupRunner()':
reymalahay_lab1_code_test.ino:(.text._ZN5aunit10TestRunner11setupRunnerEv[_ZN5aunit10TestRunner11setupRunnerEv]+0x42): undefined reference to `aunit::TestRunner::processCommandLine()'
/usr/bin/ld: reymalahay_lab1_code_test.ino:(.text._ZN5aunit10TestRunner11setupRunnerEv[_ZN5aunit10TestRunner11setupRunnerEv]+0x4f): undefined reference to `aunit::TestRunner::countTests()'
/usr/bin/ld: reymalahay_lab1_code_test.ino:(.text._ZN5aunit10TestRunner11setupRunnerEv[_ZN5aunit10TestRunner11setupRunnerEv]+0x5c): undefined reference to `aunit::Test::getRoot()'
/usr/bin/ld: reymalahay_lab1_code_test.o:(.data.rel.ro._ZTV14test_incorrect[_ZTV14test_incorrect]+0x20): undefined reference to `aunit::TestOnce::loop()'
/usr/bin/ld: reymalahay_lab1_code_test.o:(.data.rel.ro._ZTV12test_correct[_ZTV12test_correct]+0x20): undefined reference to `aunit::TestOnce::loop()'
/usr/bin/ld: reymalahay_lab1_code_test.o:(.data.rel.ro._ZTI14test_incorrect[_ZTI14test_incorrect]+0x10): undefined reference to `typeinfo for aunit::TestOnce'
/usr/bin/ld: reymalahay_lab1_code_test.o:(.data.rel.ro._ZTI12test_correct[_ZTI12test_correct]+0x10): undefined reference to `typeinfo for aunit::TestOnce'
/usr/bin/ld: warning: creating DT_TEXTREL in a PIE
collect2: error: ld returned 1 exit status
make: *** [../EpoxyDuino/EpoxyDuino.mk:210: reymalahay_lab1_code_test.out] Error 1

my responses to the moderator's questions

What is your OS?

Linux

Which C++ compiler?

g++

What command did you type?

1. make clean
2. make
3. make run

the error is thrown in step 2.

What source code did you try to compile?

the basic example

What is your Makefile?

i took the simple route, this is my Makefile:

APP_NAME := lab1_code_test
ARDUINO_LIBS := AUnit
include ../EpoxyDuino/EpoxyDuino.mk

Did you try to compile one of the examples in EpoxyDuino?

yes, they work fine within the EpoxyDuino repo, but fail when i copy and paste the contents of one of the tests into a different repo.

please advise.

thanks in advance,
rey malahay

[reymalahay]

hi @bxparks ,

thank you for all your help to date.

please disregard this topic. i resolved this issue by using an enivorinment variable, i.e.:

APP_NAME := lab1_code_test
ARDUINO_LIBS := AUnit
include ${EPOXY_HOME}/EpoxyDuino.mk

thanks all the same,
rey malahay