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lib/Alien/SDL3.pm  view on Meta::CPAN

package Alien::SDL3 v3.4.22 {
    use feature 'class';
    no warnings 'experimental::class';
    use Alien::Xrepo::Runtime;
    use Config ();

    class Alien::SDL3 : isa(Alien::Xrepo::Runtime) {

        # SDL3 is bound as a family: core + the common extension libraries. Each is installed
        # separately (as a SHARED library; xrepo builds SDL3 static by default, and Affix/FFI::Platypus
        # need a real .dll/.so/.dylib) and exposed via the Alien::Build-style `alt()` accessor or a
        # package-name argument.
        #
        # recipes/ is a small local xmake-repo tree (local overrides of libsdl3, libsdl3_image,
        # libsdl3_ttf and libsdl3_mixer); registering it here means the runtime description also
        # carries everything the engine needs to reproduce the build.
        method recipe {

            # install_opts() is only the runtime's dynamic-resolution ambient; the build engine reads the
            # recipe's `defaults`. Folding install_opts() in here is what actually hands -a (and the Windows
            # toolchain below) to `perl Build`, keeping the built profile and dynamic resolution in step.

recipes/packages/l/libsdl3/xmake.lua  view on Meta::CPAN

        end
        table.insert(names, self:name())

        for _, name in ipairs(names) do
            -- self:find_package() rather than the global find_package(): it
            -- defaults to system-only for non-xmake:: names, which is what the
            -- fallback below uses, so we test the same package it would pick.
            local fetchinfo = self:find_package(name, {system = true})
            if fetchinfo then
                local found = fetchinfo.version
                -- pkgconfig-style managers report a plain semver; vcpkg reports
                -- "<semver>-<portrevision>" (libsdl3_3.4.18-1_x64-windows.list).
                -- semver reads that as a 3.4.18 pre-release, so a perfectly
                -- current vcpkg SDL3 would look older than it is. Drop the port
                -- revision before comparing.
                local comparable = found and found:gsub("%-%d+$", "")
                -- try() returns the try-function's return values directly, not
                -- (ok, result) -- @see core/sandbox/modules/try.lua:132 -- so an
                -- unparseable version arrives here as nil rather than false.
                local satisfies = try {
                    function () return semver.satisfies(comparable, ">=" .. _MIN_SYSTEM_VERSION) end