Gabriela Serventi <gabrielaserventi@xxxxxxxxx> writes: > Hi! I'm trying to compile release 14.1 in a very old Linux Server (Red Hat > Enterprise Linux Server release 5.8). I can run configure successfully, but > when I try to run make, I get the following error: > latch.c:85:26: error: sys/signalfd.h: No such file or directory It looks like since 6a2a70a02, latch.c effectively uses HAVE_SYS_EPOLL_H to decide whether it can include <sys/signalfd.h>, which seems not too well thought out. A proper fix will require another configure check, but you could hack it by adding -DWAIT_USE_POLL to CPPFLAGS in src/Makefile.global after running configure. FWIW, EL5 is *ancient*. You really oughta consider an update. regards, tom lane
