[Csnd-dev] CS7 build error: cannot find -lIntl::Intl

hi all -

i get this error from current develop branch:

[ 83%] Linking CXX shared library libcsound64.so
/usr/bin/ld: cannot find -lIntl::Intl
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/csound64.dir/build.make:3862: 
libcsound64.so.7.0] Error 1
make[1]: *** [CMakeFiles/Makefile2:583: CMakeFiles/csound64.dir/all] Error 2
make: *** [Makefile:182: all] Error 2

this is with debian 11 and these tasks from the csound root dir:

cd ../cs7make
cmake ../csound
make -j6

i did this with a clean cs7make dir, and now also with a complete new 
cloned csound dir, but no success.

thanks for any help -
	joachim