Hi, Perhaps I should start off by mentioning that this report is related to the following reports: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=254752 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=245034 So apologies in advance for the noise! TL;DR: I am unable to compile PHP with DEBUG due to having ZTS forced. If I disable ZTS, then I get problems with XML and a half dozen other extensions: ===> php73-pear-1.10.12 depends on file: /usr/local/lib/php/20180731-zts/xml.so - not found *** Error code 1 I am using 2021Q1 on 11.4 atm, and need to get a DEBUG build going to look into some problems with mod_mpm_event: * thread #19, name = 'httpd', stop reason = signal SIGHUP * frame #0: 0x0000000801cab0fa libc.so.7`__sys_thr_kill + 10 frame #1: 0x00000008019cea0a libthr.so.3`_pthread_kill + 170 frame #2: 0x00000008066f829c mod_mpm_event.so`___lldb_unnamed_symbol30$$mod_mpm_event.so + 284 frame #3: 0x00000008066f9846 mod_mpm_event.so`___lldb_unnamed_symbol38$$mod_mpm_event.so + 310 frame #4: 0x00000008019c608c libthr.so.3`___lldb_unnamed_symbol1$$libthr.so.3 + 348 Any insight into this would be appreciated, thanks!