3 Commits

Author SHA1 Message Date
Frank Lichtenheld
22213a8834 CMake: Support doc builds on Windows machines that do not have .py file association
On Windows we might need to call python because .py files are not
directly executable. This is true e.g. for GHA runners.
For now we assume that rst2html and rst2man can be handled in the same
way and do not test both of them.

Commit e8881ec6dd63bd80ce05202573eac54ab8657fcb unconditionally
used $PYTHON, but that broke build on systems where the default
python can't be used and we need to respect the shebang.
Commit 5dbec1c019d14880ae7bf364b062d3589c7fd9e7 unconditionally
did not use $PYTHON, but that broke build on the aformentioned
GHA runners.
This commit tries to establish a solution that works for both
systems.

Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com>
Acked-by: Arne Schwabe <arne@rfc2549.org>
Message-Id: <20230704130902.105585-1-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg26813.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>
2023-07-06 13:52:24 +02:00
Arne Schwabe
5dbec1c019 Do not blindly assume python3 is also the interpreter that runs rst2html
On my system python3 is the macOS system python3 while rst2html has

   #!/opt/homebrew/opt/python@3.9/bin/python3.9

as its first line. Running that with a different python results in missing
python modules. So directly execute the rst2html script instead.

Change-Id: I7e27ae031179c91cc1bca8122caf2453d6396ec0
Signed-off-by: Arne Schwabe <arne@rfc2549.org>
Acked-by: Frank Lichtenheld <frank@lichtenheld.com>
Message-Id: <20230629215611.3292788-2-arne@rfc2549.org>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg26790.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>
2023-07-02 13:20:20 +02:00
Frank Lichtenheld
e8881ec6dd CMake: Add complete MinGW and MSVC build
This is based on the initial CMake patch by
Arne Schwabe, but extends that to provide
a complete replacement for existing MinGW
build (autotools based) and MSVC build
(openvpn.sln).

The following features are added while switching
these builds to CMake:
 - vcpkg support for MinGW build, allowing for
   trivial cross-compilation on Linux
 - Add unittests to MSVC build
 - Rework MSVC config header generation, removing
   need for separate headers between autotools
   and MSVC

The following advantages are reasons for switching
to CMake over the existing MSVC build:
 - Easier to maintain CMake files without IDE
   than the sln and vcxproj files
 - Able to maintain MSVC and MinGW build side-by-side

The plan is to completely remove the existing MSVC
build system but leave the existing autotools builds
in place as-is, including MinGW support.

CMake is not the intended build system for Unix-like
platforms and there are no current plans to switch
to it.

v2:
 - Reduce default warning level for MSVC to /W2. With
   /W3 the build is just much too noisy, making it
   difficult to spot new warnings.
 - Change MSVC CMake presets to have hardcoded build
   type. When using pkg_search_module MSVC Multi-Config
   builds do not work correctly at all since PkgConfig
   doesn't seem to be able to create multi-config
   libraries like find_package does.
 - Change minGW presets to be Multi-Config capable.
 - Remove OPENVPN_VERSION_MAJOR, OPENVPN_VERSION_MINOR,
   OPENVPN_VERSION_PATCH from config.h.cmake.in.
   They are not required and cause macro redefinition
   warnings in MSVC (with openvpn-plugin.h). gcc doesn't
   warn about this because the definitions are identical
   so no need to fix this in autoheader config.h.in.
v3:
 - Apply fixes by Lev Stipakov to match MSVC compile
   options better to previous build.
 - Apply change by Lev Stipakov to enable generation
   of PDB files.
 - Move /Brepro to its own commit. This is a behavior
   change that should be more visible.
 - Rebase on top of my dist fixes.

Change-Id: I237f28eca618d4fc476225b887c0be26cca362b1
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com>
Acked-by: Lev Stipakov <lstipakov@gmail.com>
Message-Id: <20230620135310.94455-3-frank@lichtenheld.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg26754.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>
2023-06-27 18:07:03 +02:00