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commit    5e4dacb9878cf71e32950e90993afd9450dab4da
Author:   Thomas Munro <tmunro@postgresql.org>
Date:     Sun Oct 22 01:17:00 2023 +0000
First released in: 17.0, 11.22, 12.17, 13.13, 14.10, 15.5, 16.1

    Log LLVM library version in configure output.
    
    When scanning build farm results, it's useful to be able to see which
    version is in use.  For the Meson build system, this information was
    already displayed.
    
    Back-patch to all supported branches.
    
    Discussion: https://postgr.es/m/4022690.1697852728%40sss.pgh.pa.us


 config/llvm.m4 | 1 +
 configure      | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/config/llvm.m4 b/config/llvm.m4
index 3a75cd8b4df..21d8cd4f90f 100644
--- a/config/llvm.m4
+++ b/config/llvm.m4
@@ -28,6 +28,7 @@ AC_DEFUN([PGAC_LLVM_SUPPORT],
   if echo $pgac_llvm_version | $AWK -F '.' '{ if ([$]1 >= 4 || ([$]1 == 3 && [$]2 >= 9)) exit 1; else exit 0;}';then
     AC_MSG_ERROR([$LLVM_CONFIG version is $pgac_llvm_version but at least 3.9 is required])
   fi
+  AC_MSG_NOTICE([using llvm $pgac_llvm_version])
 
   # need clang to create some bitcode files
   AC_ARG_VAR(CLANG, [path to clang compiler to generate bitcode])
diff --git a/configure b/configure
index d47e0f8b260..c2cb1b1b247 100755
--- a/configure
+++ b/configure
@@ -5123,6 +5123,8 @@ fi
   if echo $pgac_llvm_version | $AWK -F '.' '{ if ($1 >= 4 || ($1 == 3 && $2 >= 9)) exit 1; else exit 0;}';then
     as_fn_error $? "$LLVM_CONFIG version is $pgac_llvm_version but at least 3.9 is required" "$LINENO" 5
   fi
+  { $as_echo "$as_me:${as_lineno-$LINENO}: using llvm $pgac_llvm_version" >&5
+$as_echo "$as_me: using llvm $pgac_llvm_version" >&6;}
 
   # need clang to create some bitcode files
 


[parent: dab889d60bac]