Merge bitcoin/bitcoin#29208: build: Bump clang minimum supported version to 14

aaaace2fd1299939c755c281b787df0bbf1747a0 fuzz: Assume presence of __builtin_*_overflow, without checks (MarcoFalke)
fa223ba5eb764fe822229a58d4d44d3ea83d0793 Revert "build: Fix undefined reference to __mulodi4" (MarcoFalke)
fa7c751bd923cd9fb4790fe7fb51fafa2faa1db6 build: Bump clang minimum supported version to 14 (MarcoFalke)

Pull request description:

  Most supported operating systems ship with clang-14 (or later), so bump the minimum to that and allow new code to drop workarounds for previous clang bugs.

  For reference:
  * https://packages.debian.org/bookworm/clang (`clang-14`)
  * https://packages.ubuntu.com/jammy/clang (`clang-14`)
  * CentOS-like 8/9 Stream: All Clang versions from 15 to 17
  * FreeBSD 12/13: All Clang versions from 15 to 16
  * OpenSuse Tumbleweed ships with https://software.opensuse.org/package/clang (`clang17`); No idea about OpenSuse Leap

  On operating systems where the clang version is not shipped by default, the user would have to use GCC, or install clang in a different way. For example:

  * https://packages.debian.org/bullseye/g++ (g++-10)
  * https://packages.ubuntu.com/focal/g++-10
  * https://apt.llvm.org/, or nix, or guix, or compile clang from source, ...

ACKs for top commit:
  fanquake:
    ACK aaaace2fd1299939c755c281b787df0bbf1747a0

Tree-SHA512: 81d066b14cc568d27312f1cc814b09540b038a10a0a8e9d71fc9745b024fb6c32a959af673e6819b817ea7cef98da4abfa63dff16cffb7821b40083016b0291f

1 files changed, 0 insertions, 2 deletions

diff --git a/configure.ac b/configure.ac
index d705814ae7..68edc84ded 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1338,8 +1338,6 @@ if test "$enable_fuzz_binary" = "yes"; then
      ]],[[
       */ int not_main() {
      ]])])
-
-  CHECK_RUNTIME_LIB
 fi
 
 if test "$enable_wallet" != "no"; then