From 6d19742e37c5d2870c11e98e90b0014e70917e10 Mon Sep 17 00:00:00 2001
From: Tim Stahlhut <stahta01@gmail.com>
Date: Thu, 2 Feb 2023 14:08:29 -0500
Subject: [PATCH] Backport most of don't use hardcode `LLVM_SHARED_LIB_NAME`
 (#45908)

---
 Makefile           | 4 +++-
 deps/llvm-ver.make | 7 +++++++
 deps/llvm.mk       | 8 ++++----
 src/Makefile       | 2 +-
 4 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/Makefile b/Makefile
index 57b5953107914..c02a0ea1c4d59 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,7 @@
 JULIAHOME := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
 include $(JULIAHOME)/Make.inc
+# import LLVM_SHARED_LIB_NAME
+include $(JULIAHOME)/deps/llvm-ver.make
 
 VERSDIR := v`cut -d. -f1-2 < $(JULIAHOME)/VERSION`
 
@@ -190,7 +192,7 @@ else
 JL_PRIVATE_LIBS-$(USE_SYSTEM_ZLIB) += libz
 endif
 ifeq ($(USE_LLVM_SHLIB),1)
-JL_PRIVATE_LIBS-$(USE_SYSTEM_LLVM) += libLLVM libLLVM-13jl
+JL_PRIVATE_LIBS-$(USE_SYSTEM_LLVM) += libLLVM $(LLVM_SHARED_LIB_NAME)
 endif
 JL_PRIVATE_LIBS-$(USE_SYSTEM_LIBUNWIND) += libunwind
 
diff --git a/deps/llvm-ver.make b/deps/llvm-ver.make
index c2c7f2bc56da7..3c498be6c2363 100644
--- a/deps/llvm-ver.make
+++ b/deps/llvm-ver.make
@@ -1,3 +1,5 @@
+include $(JULIAHOME)/deps/llvm.version
+
 LLVM_VER_MAJ:=$(word 1, $(subst ., ,$(LLVM_VER)))
 LLVM_VER_MIN:=$(word 2, $(subst ., ,$(LLVM_VER)))
 # define a "short" LLVM version for easy comparisons
@@ -10,3 +12,8 @@ LLVM_VER_PATCH:=$(word 3, $(subst ., ,$(LLVM_VER)))
 ifeq ($(LLVM_VER_PATCH),)
 LLVM_VER_PATCH := 0
 endif
+
+LLVM_SHARED_LIB_VER_SUFFIX := $(LLVM_VER_MAJ)jl
+# e.g.: "libLLVM-14jl"
+LLVM_SHARED_LIB_NAME := libLLVM-$(LLVM_SHARED_LIB_VER_SUFFIX)
+LLVM_SHARED_LINK_FLAG := -lLLVM-$(LLVM_SHARED_LIB_VER_SUFFIX)
diff --git a/deps/llvm.mk b/deps/llvm.mk
index 7c4c2d60dfd9a..61210728e6ffb 100644
--- a/deps/llvm.mk
+++ b/deps/llvm.mk
@@ -198,7 +198,7 @@ LLVM_CMAKE += -DCMAKE_EXE_LINKER_FLAGS="$(LLVM_LDFLAGS)" \
 	-DCMAKE_SHARED_LINKER_FLAGS="$(LLVM_LDFLAGS)"
 
 # change the SONAME of Julia's private LLVM
-# i.e. libLLVM-6.0jl.so
+# i.e. libLLVM-14jl.so
 # see #32462
 LLVM_CMAKE += -DLLVM_VERSION_SUFFIX:STRING="jl"
 LLVM_CMAKE += -DLLVM_SHLIB_SYMBOL_VERSION:STRING="JL_LLVM_$(LLVM_VER_SHORT)"
@@ -255,10 +255,10 @@ endif
 
 LLVM_INSTALL = \
 	cd $1 && mkdir -p $2$$(build_depsbindir) && \
-    cp -r $$(SRCCACHE)/$$(LLVM_SRC_DIR)/llvm/utils/lit $2$$(build_depsbindir)/ && \
-    $$(CMAKE) -DCMAKE_INSTALL_PREFIX="$2$$(build_prefix)" -P cmake_install.cmake
+	cp -r $$(SRCCACHE)/$$(LLVM_SRC_DIR)/llvm/utils/lit $2$$(build_depsbindir)/ && \
+	$$(CMAKE) -DCMAKE_INSTALL_PREFIX="$2$$(build_prefix)" -P cmake_install.cmake
 ifeq ($(OS), WINNT)
-LLVM_INSTALL += && cp $2$$(build_shlibdir)/libLLVM.dll $2$$(build_depsbindir)
+LLVM_INSTALL += && cp $2$$(build_shlibdir)/$(LLVM_SHARED_LIB_NAME).dll $2$$(build_depsbindir)
 endif
 ifeq ($(OS),Darwin)
 # https://github.com/JuliaLang/julia/issues/29981
diff --git a/src/Makefile b/src/Makefile
index 8ef266c8e42d3..e52b25e950ed1 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -132,7 +132,7 @@ else
 ifeq ($(OS), Darwin)
 CG_LLVMLINK += $(LLVM_LDFLAGS) -lLLVM
 else
-CG_LLVMLINK += $(LLVM_LDFLAGS) -lLLVM-13jl
+CG_LLVMLINK += $(LLVM_LDFLAGS) $(LLVM_SHARED_LINK_FLAG)
 endif
 endif
 endif