Unable to compile PDlib due to 'ld: error: unable to find library -lstdc++' and 'Error code 1' on FreeBSD

[benbenik]

System: FreeBSD system 13.2-RELEASE-p8 FreeBSD 13.2-RELEASE-p8 GENERIC amd64
Issue: Unable to compile PDlib due to 'ld: error: unable to find library -lstdc++' and 'Error code 1'
Expected behaviour: PDlib compiles on FreeBSD

Context:
Installing Dlib, following this procedure works: https://github.com/matiasdelellis/facerecognition/wiki/PDlib-Installation

Next step, installing PDlib is met with an error during the 'make' command, when following: https://github.com/matiasdelellis/facerecognition/wiki/PDlib-Installation

git clone https://github.com/goodspb/pdlib.git
cd pdlib
phpize
./configure
make ==> issue arises here 'Error code 1' and 'ld: error: unable to find library -lstdc++', see below
sudo make install

Possibly because FreeBSD uses clang, not gcc. I have tried multiple work arounds, even removing lstdc from the makefile, but unfortunately this results in crashes when trying to load the .so in PHP.

Maybe it is possible to include clang or allow for a more generic way of compiling?

>make
/bin/sh /home/test/compile/dlib/dlib/build/pdlib/libtool --mode=link c++ -shared -I/home/test/compile/dlib/dlib/build/pdlib/include -I/home/test/compile/dlib/dlib/build/pdlib/main -I/home/test/compile/dlib/dlib/build/pdlib -I/usr/local/include/php -I/usr/local/include/php/main -I/usr/local/include/php/TSRM -I/usr/local/include/php/Zend -I/usr/local/include/php/ext -I/usr/local/include/php/ext/date/lib -I/usr/local/include -DHAVE_CONFIG_H -g -O2 -o ./pdlib.la -export-dynamic -avoid-version -prefer-pic -module -rpath /home/test/compile/dlib/dlib/build/pdlib/modules pdlib.lo src/chinese_whispers.lo src/face_detection.lo src/face_landmark_detection.lo src/face_recognition.lo src/cnn_face_detection.lo src/vector.lo -Wl,-rpath,/usr/local/lib -L/usr/local/lib -lstdc++ -ldlib c++ -shared -nostdlib /usr/lib/crti.o /usr/lib/crtbeginS.o .libs/pdlib.o src/.libs/chinese_whispers.o src/.libs/face_detection.o src/.libs/face_landmark_detection.o src/.libs/face_recognition.o src/.libs/cnn_face_detection.o src/.libs/vector.o -L/usr/local/lib -lstdc++ -ldlib -L/usr/lib -lc++ -lm -lc -lgcc -lgcc_s /usr/lib/crtendS.o /usr/lib/crtn.o -Wl,-rpath -Wl,/usr/local/lib -Wl,-soname -Wl,pdlib.so -o ./.libs/pdlib.so ld: error: unable to find library -lstdc++ c++: error: linker command failed with exit code 1 (use -v to see invocation) *** Error code 1

Stop.
make: stopped in /home/test/compile/dlib/dlib/build/pdlib

[mastersteve1]

I have exactly the same exception.
I wanted to compile pdlib to get facerecognition work.

System: TrueNAS-13.0-U6.1

`root@Cloud:/pdlib # make
/bin/sh /pdlib/libtool --mode=link c++ -shared -I/pdlib/include -I/pdlib/main -I/pdlib -I/usr/local/include/php -I/usr/local/include/php/main -I/usr/local/include/php/TSRM -I/usr/local/include/php/Zend -I/usr/local/include/php/ext -I/usr/local/include/php/ext/date/lib -I/usr/local/include -DHAVE_CONFIG_H -g -O2 -o ./pdlib.la -export-dynamic -avoid-version -prefer-pic -module -rpath /pdlib/modules pdlib.lo src/chinese_whispers.lo src/face_detection.lo src/face_landmark_detection.lo src/face_recognition.lo src/cnn_face_detection.lo src/vector.lo -Wl,-rpath,/usr/local/lib -L/usr/local/lib -lstdc++ -ldlib -lpthread
c++ -shared -nostdlib /usr/lib/crti.o /usr/lib/crtbeginS.o .libs/pdlib.o src/.libs/chinese_whispers.o src/.libs/face_detection.o src/.libs/face_landmark_detection.o src/.libs/face_recognition.o src/.libs/cnn_face_detection.o src/.libs/vector.o -L/usr/local/lib -lstdc++ -ldlib -lpthread -L/usr/lib -lc++ -lm -lc -lgcc -lgcc_s /usr/lib/crtendS.o /usr/lib/crtn.o -Wl,-rpath -Wl,/usr/local/lib -Wl,-soname -Wl,pdlib.so -o ./.libs/pdlib.so
ld: error: unable to find library -lstdc++
c++: error: linker command failed with exit code 1 (use -v to see invocation)
*** Error code 1

Stop.
make: stopped in /pdlib`

[SoreMole]

This is issue of compiling pdlib with clang. As far as i could understand - it requires gcc14, but if it compiled with gcc, another problem arise - php-fpm compiled with clang. After i compile php with gcc - it links libraries, but stil have issue with crash with signal 6 or signal 11.