irrlichtmt fails to install on Mac OS 10.6

[programmingkidx]

While trying to install irrlichtmt on Mac OS 10.6 I saw this error:

Irrlicht/COpenGLDriver.cpp:2012:13: error: use of undeclared identifier 'GL_TEXTURE_CUBE_MAP_SEAMLESS'; did you mean 'OpenGLProcedures::TEXTURE_CUBE_MAP_SEAMLESS'?

I was not able to determine when GL_TEXTURE_CUBE_MAP_SEAMLESS was added to Mac OS X. I think this symbol was added in OpenGL 3.2. According to this page "​https://www.geeks3d.com/20121109/overview-of-opengl-support-on-os-x/" OpenGL 3.2 was not available on Mac OS 10.6.

[kencu (Ken)]

on 10.6 may need to go back to irrlicht, if it still works with minetest.

[programmingkidx]

A solution to this problem might be:
a) we find an OpenGL programmer who can program around this missing symbol
b) we revert to a previous version of MineTest that could work on Mac OS 10.6.

[programmingkidx]

I like option A better because it would mean newer software would be available to older versions of Mac OS X.

[kencu (Ken)]

or

on 10.6 may need to go back to irrlicht, if it still works with minetest.

[programmingkidx]

Sorry Ken I didn't acknowledge your idea. I didn't see the missing 'mt' at the end of irrlicht. Your idea sounds interesting.

[aeiouaeiouaeiouaeiouaeiouaeiou]

Minetest is no longer compatible with Irrlicht.

​https://github.com/minetest/minetest/commit/16a30556dfa8e27c82d026bd63467f82d2e37a1c

[Zweihorn (@Zweihorn)]

That may be correct but ...

Replying to aeiouaeiouaeiouaeiouaeiouaeiou:

Minetest is no longer compatible with Irrlicht.

​https://github.com/minetest/minetest/commit/16a30556dfa8e27c82d026bd63467f82d2e37a1c

OK?

There is a specific "Minetest's fork of Irrlicht" upstream and this is available as "irrlichtmt" port

See:

• ​https://github.com/minetest/irrlicht

• ​https://github.com/macports/macports-ports/tree/master/devel/irrlichtmt

However, this is not specific to a.m. issue and may not help Mac OS X 10.6 Snow Leopard users for hopefully soon again enjoying the Minetest game as a "minetest" port user experience.

[Zweihorn (@Zweihorn)]

Maybe later during the year (2023 ?) I could dig into my dungeons and could find my old original white Mac mini with Hard-disk and Mac OS X 10.6 Snow Leopard originally installed from the original Mac OS X 10.6 Compact-Disk set.

No promises but we always can hope ...

[Zweihorn (@Zweihorn)]

see: ​https://github.com/minetest/irrlicht/commit/ce0d29df933fd03c5de218e159976629113257b9#commitcomment-94786960

[kencu (Ken)]

yes, looks like support to build minetest against the old Irrlicht library has been dropped.

not too surpring that things move on.

[Zweihorn (@Zweihorn)]

Replying to kencu:

yes, looks like support to build minetest against the old Irrlicht library has been dropped.

not too surpring that things move on.

That is correct and this defect report was not blaming anybody. Inventions and success both devour their children.

However, I raised this issue at the IrrlichtMT repository of the Minetest project.

• ​https://github.com/minetest/irrlicht/issues/152

IMO any chances may be small, however, "you don't ask, you don't get", they say.

[Zweihorn (@Zweihorn)]

Voila. Faster than expected.

Reply from a very kind and quite helpful MT core dev like sfan5 ​https://github.com/sfan5

IrrlichtMt supports OpenGL 1.4 and newer but requires reasonably up-to-date OpenGL headers to build (actual support is checked at runtime), which you can get from [Khronos](​https://registry.khronos.org/OpenGL/index_gl.php). Irrlicht used to bundle these headers but we no longer do to simplify maintenance.

Alternatively if it's just this symbol you can try to #define GL_TEXTURE_CUBE_MAP_SEAMLESS 0x884F somewhere.

• ​https://github.com/minetest/irrlicht/issues/152#issuecomment-1369131242

Hope this helps. However, I am lacking the 10.6 platform momentarily if not indefinitely.

[kencu (Ken)]

Oh, that is pretty encouraging. OK, let's not make 10.6 a hard no then -- sounds like it will be fixed soon enough.

[Zweihorn (@Zweihorn)]

Replying to kencu:

Oh, that is pretty encouraging. OK, let's not make 10.6 a hard no then -- sounds like it will be fixed soon enough.

OK

• Will amend the Portfile of "minetest" rev2 accordingly and remove the 'darwin >=11' in particular.
• How about modifying this Ticket by amending to "Keywords 'legacy-os'" above? Just curious, however ​https://trac.macports.org/wiki/TicketsKeywordGuidelines

THX

[Zweihorn (@Zweihorn)]

closed by

• ​https://github.com/macports/macports-ports/pull/17241

[programmingkidx]

I ran "sudo port selfupdate", then ran "sudo port install minetest". The result was the same:

:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_devel_irrlichtmt/irrlichtmt/work/irrlicht-1.9.0mt4/source/Irrlicht/COpenGLDriver.cpp:2012:13: error: use of undeclared identifier 'GL_TEXTURE_CUBE_MAP_SEAMLESS'; did you mean 'OpenGLProcedures::TEXTURE_CUBE_MAP_SEAMLESS'?

I am using MacPorts 2.8.1. I thought this issue had been fixed. Is there something else left to do?