Problem:
When installing the R openssl package using
BiocManager::install("openssl")
or any package depending on the openssl package, you see an error message like
-------------------------- [ERROR MESSAGE] ---------------------------
tools/version.c:1:10: fatal error: openssl/opensslv.h: File or directory not found
1 | #include <openssl/opensslv.h>
| ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
--------------------------------------------------------------------
ERROR: configuration failed for package ‘openssl’
* removing ‘/home/uli/R/x86_64-pc-linux-gnu-library/4.0/openssl’
Solution:
You need to install OpenSSL. On Ubuntu, install it using
sudo apt -y install libssl-dev
For other systems, see the description just above the error message by the authors of the package:
--------------------------- [ANTICONF] -------------------------------- Configuration failed because openssl was not found. Try installing: * deb: libssl-dev (Debian, Ubuntu, etc) * rpm: openssl-devel (Fedora, CentOS, RHEL) * csw: libssl_dev (Solaris) * brew: [email protected] (Mac OSX) If openssl is already installed, check that 'pkg-config' is in your PATH and PKG_CONFIG_PATH contains a openssl.pc file. If pkg-config is unavailable you can set INCLUDE_DIR and LIB_DIR manually via: R CMD INSTALL --configure-vars='INCLUDE_DIR=... LIB_DIR=...'