In file included from vendor/cigraph/src/community/optimal_modularity.c:32:
vendor/cigraph/src/internal/glpk_support.h:39:10: fatal error: glpk.h: No such file or directory
   39 | #include <glpk.h>
      |          ^~~~~~~~
compilation terminated.
make: *** [/data1/username/0030.software/python/3.8/envs/r-4.3.2/lib/R/etc/Makeconf:193: vendor/cigraph/src/community/optimal_modularity.o] Error 1
ERROR: compilation failed for package ‘igraph’

cd ~
wget http://ftp.gnu.org/gnu/glpk/glpk-4.54.tar.gz
tar xfzv glpk-4.54.tar.gz
mkdir GLPK
cd glpk-4.54
./configure --prefix=/home/username/GLPK
make
make install

cd /path/to/rpackages
wget https://cran.r-project.org/src/contrib/Rglpk_0.6-5.1.tar.gz
tar xvf Rglpk_0.6-5.1.tar.gz

mamba activate r-4.3.2
mv /home/username/glpk-4.54 /path/to/rpackages/Rglpk/src/GLPK

export LD_LIBRARY_PATH=/home/username/GLPK/lib
export LIBRARY_PATH=/home/username/GLPK/lib
export CPATH=/home/username/GLPK/include

R CMD INSTALL Rglpk