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e92c0632c1
Due to a conflict in macro names on Windows between <wincrypt.h> and <openssl/ssl.h> these headers need to be included using a predictable pattern with an undef to handle that. The GSSAPI header <gssapi.h> does include <wincrypt.h> which cause problems with compiling PostgreSQL using MSVC when OpenSSL and GSSAPI are both enabled in the tree. Rather than fixing piecemeal for each file including gssapi headers, move the the includes and undef to a new file which should be used to centralize the logic. This patch is a reworked version of a patch by Imran Zaheer proposed earlier in the thread. Once this has proven effective in master we should look at backporting this as the problem exist at least since v16. Author: Daniel Gustafsson <daniel@yesql.se> Co-authored-by: Imran Zaheer <imran.zhir@gmail.com> Reported-by: Dave Page <dpage@pgadmin.org> Reviewed-by: Andres Freund <andres@anarazel.de> Reviewed-by: vignesh C <vignesh21@gmail.com> Discussion: https://postgr.es/m/20240708173204.3f3xjilglx5wuzx6@awork3.anarazel.de
The PostgreSQL contrib tree
---------------------------
This subtree contains porting tools, analysis utilities, and plug-in
features that are not part of the core PostgreSQL system, mainly
because they address a limited audience or are too experimental to be
part of the main source tree. This does not preclude their
usefulness.
User documentation for each module appears in the main SGML
documentation.
When building from the source distribution, these modules are not
built automatically, unless you build the "world" target. You can
also build and install them all by running "make all" and "make
install" in this directory; or to build and install just one selected
module, do the same in that module's subdirectory.
Some directories supply new user-defined functions, operators, or
types. To make use of one of these modules, after you have installed
the code you need to register the new SQL objects in the database
system by executing a CREATE EXTENSION command. In a fresh database,
you can simply do
CREATE EXTENSION module_name;
See the PostgreSQL documentation for more information about this
procedure.