From 3b6ac9e24fae88e09558524d3d9bd023a753defc Mon Sep 17 00:00:00 2001
From: Dimitri van Heesch <doxygen@gmail.com>
Date: Mon, 20 Jul 2020 21:05:08 +0200
Subject: Make a switch to choose between dynamic library to clang-cpp or
 static linking against clangTooling

---
 CMakeLists.txt                 | 1 +
 addon/doxyapp/CMakeLists.txt   | 6 +++++-
 addon/doxyparse/CMakeLists.txt | 6 +++++-
 src/CMakeLists.txt             | 9 +++++++--
 4 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 88b99d6..e76a745 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -23,6 +23,7 @@ option(build_doc       "Build user manual (HTML and PDF)" OFF)
 option(build_doc_chm   "Build user manual (CHM)" OFF)
 option(use_sqlite3     "Add support for sqlite3 output [experimental]." OFF)
 option(use_libclang    "Add support for libclang parsing." OFF)
+option(static_libclang "Link to a statically compiled version of LLVM/libclang." OFF)
 option(win_static      "Link with /MT in stead of /MD on windows" OFF)
 option(english_only    "Only compile in support for the English language" OFF)
 option(force_qt4       "Forces doxywizard to build using Qt4 even if Qt5 is installed" OFF)
diff --git a/addon/doxyapp/CMakeLists.txt b/addon/doxyapp/CMakeLists.txt
index 808eee9..a6a776a 100644
--- a/addon/doxyapp/CMakeLists.txt
+++ b/addon/doxyapp/CMakeLists.txt
@@ -15,7 +15,11 @@ doxyapp.cpp
 add_sanitizers(doxyapp)
 
 if (use_libclang)
-    set(CLANG_LIBS libclang clang-cpp ${llvm_libs})
+    if (static_libclang)
+        set(CLANG_LIBS libclang clangTooling ${llvm_libs})
+    else()
+        set(CLANG_LIBS libclang clang-cpp ${llvm_libs})
+    endif()
 endif()
 
 target_link_libraries(doxyapp
diff --git a/addon/doxyparse/CMakeLists.txt b/addon/doxyparse/CMakeLists.txt
index bfef0ab..8df99ab 100644
--- a/addon/doxyparse/CMakeLists.txt
+++ b/addon/doxyparse/CMakeLists.txt
@@ -15,7 +15,11 @@ doxyparse.cpp
 add_sanitizers(doxyparse)
 
 if (use_libclang)
-    set(CLANG_LIBS libclang clang-cpp ${llvm_libs})
+    if (static_libclang)
+        set(CLANG_LIBS libclang clangTooling ${llvm_libs})
+    else()
+        set(CLANG_LIBS libclang clang-cpp ${llvm_libs})
+    endif()
 endif()
 
 target_link_libraries(doxyparse
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index dc90eb0..5ba80b7 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -330,9 +330,14 @@ if (use_libclang)
     endif()
     include_directories(${LLVM_INCLUDE_DIRS})
     add_definitions(${LLVM_DEFINITIONS})
-    llvm_map_components_to_libnames(llvm_libs support)
+    if (static_libclang)
+        llvm_map_components_to_libnames(llvm_libs support core option)
+        set(CLANG_LIBS libclang clangTooling ${llvm_libs})
+    else() # dynamically linked version of clang
+        llvm_map_components_to_libnames(llvm_libs support)
+        set(CLANG_LIBS libclang clang-cpp ${llvm_libs})
+    endif()
     target_compile_definitions(doxygen PRIVATE ${LLVM_DEFINITIONS})
-    set(CLANG_LIBS libclang clang-cpp ${llvm_libs})
 endif()
 
 target_link_libraries(doxygen
-- 
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