When compile a package on Linux, the system libs are often used. For example, install.packages('scater') reports systemfonts was lack. On the conda environment, fontconfig and freetype2 are exsists in include directory. However, the pkg-config in the system can not detect them. If we install a pkg-config in conda, the problem is resolved.
1. install scater in R session:
>>> BiocManager::install("scater")
'systemfonts' had non-zero exit status
2. install systemfont,
>>> install.packages('systemfont')
compile error, no 'ft2build.h'
3. install.packages('pkg-config')
4. install.packages('systemfont')
## better way
>>> conda install r::r-cairo
Enjoy, hope it will be usefull.
