El 25/01/18 a las 17:20, support-tiger escribió: > running postgresql 10.1 on Fedora 27. Cannot install ruby pg gem due to > missing libpq-fe.h file. This is usually found in postgresql-devel but > it is not in fedora 27 postgresql10-devel. If install postgresql-devel > (9.6) the gem installs without problem but afraid this will interfere > with 10.1 How can we install the necessary libpq-fe.h ? thks Are you sure you don't have this file: # rpm -ql postgresql10-devel-10.1-1PGDG.f26.x86_64 | grep libpq-fe.h /usr/pgsql-10/include/libpq-fe.h This is on Fedora 26, but I'd be surprised if it were missing in 27. -- Martín Marqués http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services