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The code in charge of listing and classifying a set of configuration files in a directory was located in guc-file.l, being used currently for GUCs under "include_dir". This code is planned to be used for an upcoming feature able to include configuration files for ident and HBA files from a directory, similarly to GUCs. In both cases, the file names, suffixed by ".conf", have to be ordered alphabetically. This logic is moved to a new file, called conffiles.c, so as it is easier to share this facility between GUCs and the HBA/ident parsing logic. Author: Julien Rouhaud, Michael Paquier Discussion: https://postgr.es/m/Y2IgaH5YzIq2b+iR@paquier.xyz
# Generating dummy probes If Postgres isn't configured with dtrace enabled, we need to generate dummy probes for the entries in probes.d, that do nothing. This is accomplished in Unix via the sed script `Gen_dummy_probes.sed`. We used to use this in MSVC builds using the perl utility `psed`, which mimicked sed. However, that utility disappeared from Windows perl distributions and so we converted the sed script to a perl script to be used in MSVC builds. We still keep the sed script as the authoritative source for generating these dummy probes because except on Windows perl is not a hard requirement when building from a tarball. So, if you need to change the way dummy probes are generated, first change the sed script, and when it's working generate the perl script. This can be accomplished by using the perl utility s2p. s2p is no longer part of the perl core, so it might not be on your system, but it is available on CPAN and also in many package systems. e.g. on Fedora it can be installed using `cpan App::s2p` or `dnf install perl-App-s2p`. The Makefile contains a recipe for regenerating Gen_dummy_probes.pl, so all you need to do is once you have s2p installed is `make Gen_dummy_probes.pl` Note that in a VPATH build this will generate the file in the vpath tree, not the source tree.