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<h1> librnd FAQ </h1>
<h2> 1. ./configure and build issues </h2>
<h3> 1.1. librnd fails to configure or compile with gcc version 15 or newer </h3>
Librnd versions before 4.4.0 will fail to build with gcc version 15 or newer.
The workaround for that is adding a few more compilation flags:
./configure --CFLAGS="-std=c17 -Wno-error=implicit-function-declaration"
<h2> 2. graphics related issues </h2>
<h3> 2.1. gtk4 fails to render, prints "No EGL configuration available" </h3>
<p>
This means gtk4 can not initialize OpenGL on your system. It can be because:
<ul>
<li> OpenGL/driver installation issues
<li> your GPU is just too old (e.g. older than 10 years old)
</ul>
<p>
The workaround is to use gtk2 instead of gtk4. If you are on x86_64
Linux, you may try the latest
<a href="http://www.repo.hu/projects/ringdove/releases-bin/stable">binpack</a>
release, that one comes with gtk2 and works on any distribution.
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