I'm not sure if the following outcomes are a different problem or additional to the current one. They are related so I'll keep the same chain: - The suggestion by Christoph worked but only lead to the next problem! - ./configure reports that "no package sqlite3 found". I checked and sqlite3 --version 3.14.2 2016-09-12 18:50:49 29dbef4b8585f753861a36d6dd102ca634197bd6 I have tried the path to both the executable and to the libsqlite3: /usr/lib64/libsqlite3.so.0.8.6 So, I don't need sqlite anyway so I tried to bypass in the configuration: --without-sqlite3 with the same result. Still needs the sqlite3 package. I'm having a similar problem with imap which I really do want, although there is a workaround that requires some programming. But anyhow, when I add the imap functions: --with-imap=/usr/include/imap --with-imap-ssl I get a hit on a missing c-client. This one is different in that libc-client is present: locate c_client /usr/lib64/libxmlrpc_client.so.3 /usr/lib64/libxmlrpc_client.so.3.32 or locate c-client /usr/include/imap/c-client.h /usr/lib64/libc-client.so /usr/lib64/libc-client.so.2007 but there is no obvious way to pass this information to the configure programme. It isn't obvious what is the "install prefix" of c-client is or what configure is looking for. I have tried various combinations with no success. What am I missing here? Thanks in advance. John ========= On Thu, 2022-04-21 at 17:30 +0200, Christoph M. Becker wrote: > On 21.04.2022 at 16:53, John Iliffe wrote: > > > I tried that with no success. PKG_CONFIG_PATH is set: > > > > printenv | grep open > > PKG_CONFIG_PATH=/usr/openssl-1.1.1n/bin > > > > ls /usr/openssl-1.1.1n/bin > > c_rehash openssl > > This doesn't look right. There should be a file openssl.pc (or similar) > on your system which has the info where OpenSSL is installed. You need > to point PKG_CONFIG_PATH to the directory where this file resides. > > -- > Christoph M. Becker