installation: gmp.h not found

Installing sblr from source fails on Linux Ming 19.2 Cinnamon / conda 4.8.0 / R 3.6.1 due to gmp.h issues. As you see gmp.h is definitely present

(Work) daniil@daniil-D3402-A1:~$ sudo find / -name "gmp.h" -print /opt/anaconda3/pkgs/gmp-6.1.2-h6c8ec71_1/include/gmp.h /opt/anaconda3/envs/tf2/include/gmp.h /opt/anaconda3/envs/Work/include/gmp.h /opt/anaconda3/include/gmp.h

library(devtools) Loading required package: usethis install_github("cran/sbrl") Downloading GitHub repo cran/sbrl@master ✔ checking for file ‘/tmp/RtmpES4ZyD/remotes7d6d68883984/cran-sbrl-88b64e6/DESCRIPTION’ ... ─ preparing ‘sbrl’: ✔ checking DESCRIPTION meta-information ... ─ cleaning src ─ checking for LF line-endings in source and make files and shell scripts ─ checking for empty or unneeded directories ─ looking to see if a ‘data/datalist’ file should be added ─ building ‘sbrl_1.2.tar.gz’

installing source package ‘sbrl’ ... ** using staged installation checking for gsl-config... /opt/anaconda3/envs/Work/bin/gsl-config checking for gcc... /opt/anaconda3/envs/Work/bin/x86_64-conda_cos6-linux-gnu-cc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether /opt/anaconda3/envs/Work/bin/x86_64-conda_cos6-linux-gnu-cc accepts -g... yes checking for /opt/anaconda3/envs/Work/bin/x86_64-conda_cos6-linux-gnu-cc option to accept ISO C89... none needed checking how to run the C preprocessor... /opt/anaconda3/envs/Work/bin/x86_64-conda_cos6-linux-gnu-cpp checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking gmp.h usability... no checking gmp.h presence... no checking for gmp.h... no configure: error: gmp.h not found, is GMP installed? ERROR: configuration failed for package ‘sbrl’
removing ‘/opt/anaconda3/envs/Work/lib/R/library/sbrl’ Error: Failed to install 'sbrl' from GitHub: (converted from warning) installation of package ‘/tmp/RtmpES4ZyD/file7d6d6c49a97f/sbrl_1.2.tar.gz’ had non-zero exit status

cran / sbrl

installation: gmp.h not found #1