Build error for target sys/rpicamsrc/libgstrpicamsrc.so

[Roboteer1000]

I was at the "ninja -j4" step for the Plugins-Good and I got an error as shown below:
$ ~/gst-plugins-good-1.18.4/build $ ninja -j4
[329/714] Compiling C object gst/rtpmanager/libgstrtpmanager.so.p/rtpjitterbuffer.c.o
../gst/rtpmanager/rtpjitterbuffer.c: In function ‘rtp_jitter_buffer_append_event’:
../gst/rtpmanager/rtpjitterbuffer.c:1138:10: warning: ‘head’ may be used uninitialized in this function [-Wmaybe-uninitialized]
return head;
^~~~
../gst/rtpmanager/rtpjitterbuffer.c: In function ‘rtp_jitter_buffer_append_query’:
../gst/rtpmanager/rtpjitterbuffer.c:1158:10: warning: ‘head’ may be used uninitialized in this function [-Wmaybe-uninitialized]
return head;
^~~~
[406/714] Linking target sys/rpicamsrc/libgstrpicamsrc.so
FAILED: sys/rpicamsrc/libgstrpicamsrc.so
c++ -o sys/rpicamsrc/libgstrpicamsrc.so sys/rpicamsrc/libgstrpicamsrc.so.p/meson-generated_.._gstrpicam-enum-types.c.o sys/rpicamsrc/libgstrpicamsrc.so.p/gstrpicamsrc.c.o sys/rpicamsrc/libgstrpicamsrc.so.p/gstrpicamsrcdeviceprovider.c.o sys/rpicamsrc/libgstrpicamsrc.so.p/RaspiCapture.c.o sys/rpicamsrc/libgstrpicamsrc.so.p/RaspiCamControl.c.o sys/rpicamsrc/libgstrpicamsrc.so.p/RaspiPreview.c.o sys/rpicamsrc/libgstrpicamsrc.so.p/RaspiCLI.c.o -Wl,--no-undefined -Wl,-O1 -shared -fPIC -Wl,--start-group -Wl,-soname,libgstrpicamsrc.so -Wl,--no-as-needed /usr/lib/aarch64-linux-gnu/libgstreamer-1.0.so /usr/lib/aarch64-linux-gnu/libgobject-2.0.so /usr/lib/aarch64-linux-gnu/libglib-2.0.so /usr/lib/aarch64-linux-gnu/libgstbase-1.0.so /usr/lib/aarch64-linux-gnu/libgstvideo-1.0.so -pthread -lrt /opt/vc/lib/libmmal_core.so /opt/vc/lib/libmmal_util.so /opt/vc/lib/libmmal_vc_client.so /opt/vc/lib/libvcos.so /opt/vc/lib/libvchostif.a /opt/vc/lib/libvchiq_arm.so /opt/vc/lib/libbcm_host.so -Wl,--end-group -Wl,-rpath,/opt/vc/lib -Wl,-rpath-link,/opt/vc/lib
/usr/bin/ld: /opt/vc/lib/libmmal_core.so: error adding symbols: file in wrong format
collect2: error: ld returned 1 exit status
[409/714] Compiling C object sys/v4l2/libgstvideo4linux2.so.p/gstv4l2object.c.o
ninja: build stopped: subcommand failed.

Thank you

[Qengineering]

Working on your issue. Consumes somewhat more time.

[Qengineering]

It probably comes as a disappointment, but I couldn't find a bug or problem in the installation guide. Gstreamer 1.18.4 was installed flawlessly on a Raspberry Pi 4 32-bit OS and multiple times on a Raspberry Pi 4 64-bit OS. The Core, Base, Good, Bad and Ugly are all easy to install. Have to say, I used a clean OS. No other software installed, except the operating system.
The question remains what the cause of your problem is. All I can think of is some interference with existing software on your Pi. I couldn't reproduce your error no matter what I tried.

[Qengineering]

By the way, rpicamsrc is a 32-bit source. It is not available on the 64-bit version of Gstreamer. When a 64-bit installation asks for this module, there is something serious wrong. Probably mixing the 32 with the 64 installation.