Undefined identifier on Mac

JP Larson

Okay, this keeps coming back. I get it solved for a while, but then I do an OS upgrade or something, and it comes back, and I must be doing something wrong. I haven't been able to make this go away this time.

For this question, I'm using Qt as an IDE. I'm not doing GUI code. I'm targeting Linux -- I use a docker Ubuntu instance for builds, although I can also build under Mac with the same makefile.

However, even though Make is entirely happy, Qt is not.

exit(0); <-- Qt IDE complains about undefined identifier

I've tried including stdlib.h. I've tried including cstdlib. Both resolve somewhere down in the general vicinity of /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1, which is another of my Mac complaints, but be that as it may.

This is my TestApps.pro file:

TEMPLATE = app

CONFIG += c++11 sdk_no_version_check
CONFIG -= app_bundle
CONFIG -= qt

INCLUDEPATH += /usr/local/include
INCLUDEPATH += ../../CT-StandardLibrary/src
INCLUDEPATH += ../../CT-StandardLibrary/src/includes

LIBS += -L/usr/local/lib -L../../CT-StandardLibrary/lib -lvitac-mac -lhiredis
LIBS += -framework CoreFoundation
LIBS += -lz -llog4cplus -lpthread -lcurl -lcrossguid  -lboost_system -lboost_thread-mt -lboost_filesystem -levent -lssl -lcrypto

RunTestEvent {
        TARGET = RunTestEvent
}

SOURCES += \
    src/RunTestEvent.cpp \
    src/TestEventConfiguration.cpp

HEADERS += \
    src/TestEventConfiguration.h

I tend to see these errors on calls to pretty much all the old-style C calls. I've tried things I don't think would work like prepending :: or std:: to the calls.

I suspect this is due to the weirdness of Xcode include files. Is there magic to just make this go away?

SGaist

Hi,

What version of Qt ?
What version of Qt Creator ?
What version of Xcode ?

JP Larson

Qt 5.14.2 (CLang 10 (Apple), 64-Bit)
Qt Creator 4.12.0

Xcode 11.5, which is a couple months old.

SGaist

Sorry, I don't have that version yet.

In any case, can you provide a minimal compilable example that shows that issue ?