Newer version of musl's round() function causes fonts 
to disappear on x86 32-bit due to bad DPI value. 
So use nearbyint() here instead.
See https://bugs.alpinelinux.org/issues/4248

--- ./gfx/thebes/gfxPlatformGtk.cpp.orig
+++ ./gfx/thebes/gfxPlatformGtk.cpp
@@ -328,7 +328,11 @@
         // Make sure init is run so we have a resolution
         GdkScreen *screen = gdk_screen_get_default();
         gtk_settings_get_for_screen(screen);
+#if defined(i386)
+        sDPI = int32_t(nearbyint(gdk_screen_get_resolution(screen)));
+#else
         sDPI = int32_t(round(gdk_screen_get_resolution(screen)));
+#endif
         if (sDPI <= 0) {
             // Fall back to something sane
             sDPI = 96;