[blfs] 04/05: libclc: demote spirv-llvm-translator to recommended

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commit 8114a93f7b5ba4e48786271fbb2ab3812ad51ab8
Author: Xi Ruoyao <[email protected]>
AuthorDate: Wed May 6 17:39:07 2026 +0800

    libclc: demote spirv-llvm-translator to recommended
    
    If spirv-llvm-translator is not installed, libclc can build but the
    installation will lack the spirv{,64}-mesa3d.spv files that mesa
    requires.
    
    The build system seems supposed to support building those .spv files
    with clang instead of spirv-llvm-translator with -D
    LIBCLC_USE_SPIRV_BACKEND, if the -D LLVM_TARGETS_TO_BUILD option
    contains SPIRV.  But the clang SPIRV target is currently buggy (upstream
    issues 170339 and 183400), and Mesa itself requires spirv-llvm-translator
    for iris anyway.  So there's almost no benefit to experiment building the
    .spv files with clang as at now.
---
 general/genlib/libclc.xml | 8 +++++++-
 x/installing/mesa.xml     | 5 +++--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/general/genlib/libclc.xml b/general/genlib/libclc.xml
index 179f3002a7..704bf5c1b8 100644
--- a/general/genlib/libclc.xml
+++ b/general/genlib/libclc.xml
@@ -63,7 +63,13 @@
 
     <bridgehead renderas="sect4">Required</bridgehead>
     <para role="required">
-      <xref linkend="spirv-llvm-translator"/>
+      <xref linkend="llvm"/>
+    </para>
+
+    <bridgehead renderas="sect4">Recommended</bridgehead>
+    <para role="recommended">
+      <xref linkend="spirv-llvm-translator"/> (required for the iris
+      gallium driver in <xref linkend='mesa' role='nodep'/>)
     </para>
 
   </sect2>
diff --git a/x/installing/mesa.xml b/x/installing/mesa.xml
index 5e4ec3d5c8..ad167d0610 100644
--- a/x/installing/mesa.xml
+++ b/x/installing/mesa.xml
@@ -145,8 +145,9 @@
         </listitem>
         <listitem>
           <para>
-            <xref linkend="libclc"/> (required for the Intel iris
-            gallium driver)
+            <xref linkend="libclc"/> (built after
+            <xref linkend='spirv-llvm-translator'/>, required
+            for the Intel iris gallium driver)
           </para>
         </listitem>
         <listitem>

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