OpenSSL not found during ./configure
You will find a package name libssl-dev
in Synaptic Package Manager (Ubuntu 16.04) and after you install libssl-dev
, everything will be solved. by the way, libssl1.0.0
don't works. You'd better install libssl-dev
and libssl1.0.0
at same time.
by the way, I don't think the following solution is works: '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=...'
For some reason PKG_CONFIG_PATH
didn't contain the right path for that openssl.pc
file needed for pkg-config utility. I did find / -name 'openssl.pc'
and found it in /usr/lib/x86_64-linux-gnu/pkgconfig/
. That path was also used by my other ubuntu to ./configure
.
So I ran PKG_CONFIG_PATH="/usr/lib/x86_64-linux-gnu/pkgconfig/" ./configure
and that did the trick!
Other thing, there is another openssl.pc
in my /usr/local/ssl/lib/pkgconfig/
but when I tried to use it, the following make
command hangs with different errors (like unknown reference to function, etc.).