Re: meson vs. llvm bitcode files

Everything seems to be properly working with the new version in my
tests, I only have a few minor comments:

+   <para>
+    When <productname>PostgreSQL</productname> is built with
+    <productname>Meson</productname>, it installs a
+    <literal>pkg-config</literal> file named
+    <literal>postgresql-&majorversion;-llvm-jit-bitcode.pc</literal>.  It is
+    used internally to emit <acronym>LLVM</acronym> <acronym>JIT</acronym>
+    bitcode for the server and for selected
+    <filename>contrib</filename> modules, and it collects the same
+    compilation flags that are used to build the server itself.
+   </para>

Do we want to install these pc files even with -Dllvm=disabled?

diff --git a/src/tools/irlink b/src/tools/irlink
new file mode 100644
index 00000000000..6a03e4f5695
--- /dev/null
+++ b/src/tools/irlink

Shouldn't this file committed as executable?

+import shutil
+import subprocess
+import sys

Is shutil and sys used in the script?