Compile errors on Ubuntu 20.04

[legluondunet]

Hello,
could someone help me to compile GZDoom on Ubuntu 20.04?
I compiled ZMusic OK
But GZDoom not terminated compilation, it failed at 99%! with this error message:

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[ 99%] Building CXX object src/CMakeFiles/zdoom.dir/common/thirdparty/math/fastsin.cpp.o
make[2]: *** No rule to make target '/home/legluondunet/Autres_applications/Jeux/GZDOOM/ZMusic/libzmusic.So', needed by 'gzdoom'.  Stop.
make[2]: *** Waiting for unfinished jobs....
[ 99%] Building CXX object src/CMakeFiles/zdoom.dir/zzautozend.cpp.o
In member function 'void FStringData::Dealloc()',
    inlined from 'void FStringData::Release()' at /home/legluondunet/Autres_applications/Jeux/GZDOOM/gzdoom/src/common/utility/zstring.h:100:11,
    inlined from 'FString::~FString()' at /home/legluondunet/Autres_applications/Jeux/GZDOOM/gzdoom/src/common/utility/zstring.cpp:158:17,
    inlined from 'void FString::Split(TArray<FString>&, const char*, FString::EmptyTokenType) const' at /home/legluondunet/Autres_applications/Jeux/GZDOOM/gzdoom/src/common/utility/zstring.cpp:1276:16:
/home/legluondunet/Autres_applications/Jeux/GZDOOM/gzdoom/src/common/utility/zstring.cpp:1398:7: warning: attempt to free a non-heap object 'FString::NullString' [-Wfree-nonheap-object]
 1398 |  free (this);
      |  ~~~~~^~~~~~
make[1]: *** [CMakeFiles/Makefile2:860: src/CMakeFiles/zdoom.dir/all] Error 2
make: *** [Makefile:130: all] Error 2

Thank you for your help.

[_mental_]

ZMusic library file should be named libzmusic.so, not libzmusic.So. Linux filesystems are case sensitive usually.

[legluondunet]

you are right, but even with the correct case, it changes nothing, same compilation error message.

[_mental_]

There is no other error in the output you posted. Please provide complete compilation log.

[legluondunet]

Finally I found what I did wrong: I would not install ZMusic library, so I compiled it and just add path to the library to GZDoom cmake.

But it was not enough, I had to install it for GZDoom compiled with success.

I don't like to install software or library like this, when there is no "make uninstall" script available and avoid to keep your Linux system clean.