I copied guile-gcrypt I changed all the occurrrences of "gcrypt" in "freexl" in all the relevant files
I created an env with ~/projects/guile-freexl$ guix environment -l ./guix.scm --ad-hoc guile freexl I run configure and I got checking for libfreexl-config... no checking libfreexl's library directory... checking for libfreexl shared library name... libfreexl checking whether libfreexl can be dynamically loaded... no configure: error: GNU libfreexl does not appear to be usable; see `--with-libfreexl-prefix' and `README'. If I do the same in guile-gcrypt it builds successfully Why ? P.S. it's here https://gitlab.com/humanitiesNerd/guile-freexl P.P.S I tried with both "libfreexl" AND "freexl"