Patch from https://github.com/digego/extempore/issues/318

diff --git a/include/llvm/IR/ValueMap.h.orig b/include/llvm/IR/ValueMap.h
index ad518ac..d928f6a 100644
--- a/include/llvm/IR/ValueMap.h
+++ b/include/llvm/IR/ValueMap.h
@@ -99,7 +99,7 @@
   explicit ValueMap(const ExtraData &Data, unsigned NumInitBuckets = 64)
       : Map(NumInitBuckets), Data(Data) {}
 
-  bool hasMD() const { return MDMap; }
+  bool hasMD() const { return static_cast<bool>(MDMap); }
   MDMapT &MD() {
     if (!MDMap)
       MDMap.reset(new MDMapT);
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<tr><td><span title='2024-07-09 17:09:47 +0300'>2024-07-09</span></td><td><a href='/guix/commit/gnu/packages/chez.scm?id=0c96f7932de50c81f4b4714f287520699107c8bb'>gnu: chez-scheme-for-racket: Fix building on riscv64-linux.</a><span class='msg-avail'>...</span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2024-07-09 17:09:46 +0300'>2024-07-09</span></td><td><a href='/guix/commit/gnu/packages/chez.scm?id=7b0df27906d010aa7d0b695e35c0b40a911c58a8'>gnu: chez-scheme: Backport test fix.</a><span class='msg-avail'>...</span></td><td>Philip McGrath</td></tr>
<tr><td><span title='2024-07-09 17:09:46 +0300'>2024-07-09</span></td><td><a href='/guix/commit/gnu/packages/chez.scm?id=21402e6193799e132781bad4387ad410dbbfa93c'>gnu: racket: Update to 8.13.</a><span class='msg-avail'>...</span></td><td>Philip McGrath</td></tr>
<tr><td><span title='2024-04-11 12:46:41 +0200'>2024-04-11</span></td><td><a href='/guix/commit/gnu/packages/chez.scm?id=4e7337536ba41e888a601c92fada8a4adca9d2c6'>gnu: chez-scheme: Bootstrap from source.</a><span class='msg-avail'>...</span></td><td>Philip McGrath</td></tr>
<tr><td><span title='2024-04-11 12:46:31 +0200'>2024-04-11</span></td><td><a href='/guix/commit/gnu/packages/chez.scm?id=9d407205e8e711218e3bfa50ab6e2f55b0df623d'>gnu: chez-scheme: Update and simplify machine-type handling.</a><span class='msg-avail'>...</span></td><td>Philip McGrath</td></tr>
<tr><td><span title='2024-04-11 12:46:15 +0200'>2024-04-11</span></td><td><a href='/guix/commit/gnu/packages/chez.scm?id=c3930c8bb01e69a21348206b7298c78bc4b06caa'>gnu: Fix uses of deprecated chez-scheme-for-system.</a><span class='msg-avail'>...</span></td><td>Philip McGrath</td></tr>
<tr><td><span title='2024-04-11 12:46:09 +0200'>2024-04-11</span></td><td><a href='/guix/commit/gnu/packages/chez.scm?id=80eace78a38fe5738b7608f8381fcd734a084ed0'>gnu: Deprecate chez-scheme-for-system.in favor of chez-scheme.</a><span class='msg-avail'>...</span></td><td>Philip McGrath</td></tr>
<tr><td><span title='2024-04-11 12:45:59 +0200'>2024-04-11</span></td><td><a href='/guix/commit/gnu/packages/chez.scm?id=abd2ed839d3710ef754bb3b537eba6e351fc71c9'>gnu: chez-scheme: Update to 10.0.0.</a><span class='msg-avail'>...</span></td><td>Philip McGrath</td></tr>
<tr><td><span title='2024-04-11 12:45:51 +0200'>2024-04-11</span></td><td><a href='/guix/commit/gnu/packages/chez.scm?id=522cbed9b257506f9322611bee988ecd83c0891c'>gnu: chez-scheme: Reorganize package definitions.</a><span class='msg-avail'>...</span></td><td>Philip McGrath</td></tr>
<tr><td><span title='2024-04-11 12:45:45 +0200'>2024-04-11</span></td><td><a href='/guix/commit/gnu/packages/chez.scm?id=5b5d18e29d6ade2d097875d55d2ceb28c80986b2'>gnu: racket: Update to 8.12.</a><span class='msg-avail'>...</span></td><td>Philip McGrath</td></tr>
<tr><td><span title='2023-12-13 12:58:43 +0100'>2023-12-13</span></td><td><a href='/guix/commit/gnu/packages/chez.scm?id=1b2505217cf222d98cc960b8510660976a01cfa1'>gnu: racket: Update to 8.11.1.</a><span class='msg-avail'>...</span></td><td>Philip McGrath</td></tr>