Custom ruby path doesn't work

[Speak2Erase]

The mri_includes option isn't enough to include all the header files of ruby, ruby puts its ruby/config.h in a separate folder (x86_64-linux on my machine)

[Mai-Lapyst]

Same problem here, I found that applying a little static patch does the trick:

--- binding/meson.build.orig    2024-06-20 12:34:32.256226102 +0200
+++ binding/meson.build 2024-06-20 12:38:36.263635664 +0200
@@ -9,6 +9,7 @@
     global_dependencies += dependency('ruby-' + ver)
 else
     global_args += ('-I' + get_option('mri_includes'))
+    global_args += ('-I' + get_option('mri_includes') + '/x86_64-linux')
     global_dependencies += compilers['cpp'].find_library(get_option('mri_library'), dirs: get_option('mri_libpath'))
 endif

Ofc, this needs to have a more permanent solution than this dirty workaround...