pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- REL

pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- mas

pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- REL

pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- REL

pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- REL

pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- REL

pgsql: jit: fix build with LLVM-21

jit: fix build with LLVM-21 LLVM-21 renamed llvm::GlobalValue::getGUID() to getGUIDAssumingExternalLinkage(), so add a version guard. Author: Holger Hoffstätte Discussion: https://www.postgresql.org/message-id/flat/d25e6e4a-d1b4-84d3-2f8a-6c45b975f53d%40applied-asynchrony.com Branch -- REL