diff --git a/pkgs/development/compilers/llvm/git/libcxx/default.nix b/pkgs/development/compilers/llvm/git/libcxx/default.nix
index 8fb6b4a7dbd4..f511eba81dc5 100644
--- a/pkgs/development/compilers/llvm/git/libcxx/default.nix
+++ b/pkgs/development/compilers/llvm/git/libcxx/default.nix
@@ -1,4 +1,4 @@
-{ lib, stdenv, llvm_meta, src, cmake, python3, libcxxabi, fixDarwinDylibNames, version
+{ lib, stdenv, llvm_meta, src, cmake, python3, fixDarwinDylibNames, version
 , enableShared ? !stdenv.hostPlatform.isStatic
 }:
 
@@ -24,10 +24,7 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake python3 ]
     ++ lib.optional stdenv.isDarwin fixDarwinDylibNames;
 
-  buildInputs = [ libcxxabi ];
-
   cmakeFlags = [
-    "-DLIBCXX_CXX_ABI=libcxxabi"
   ] ++ lib.optional (stdenv.hostPlatform.isMusl || stdenv.hostPlatform.isWasi) "-DLIBCXX_HAS_MUSL_LIBC=1"
     ++ lib.optional (stdenv.hostPlatform.useLLVM or false) "-DLIBCXX_USE_COMPILER_RT=ON"
     ++ lib.optional stdenv.hostPlatform.isWasm [
diff --git a/pkgs/development/compilers/llvm/git/libcxx/gnu-install-dirs.patch b/pkgs/development/compilers/llvm/git/libcxx/gnu-install-dirs.patch
index 1f9de00a9d56..f59d7f8dfafc 100644
--- a/pkgs/development/compilers/llvm/git/libcxx/gnu-install-dirs.patch
+++ b/pkgs/development/compilers/llvm/git/libcxx/gnu-install-dirs.patch
@@ -1,5 +1,5 @@
 diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 9bf1a02f0908..612cd4aab76c 100644
+index 06ee1d74a03e..6c3c6f8f8d47 100644
 --- a/CMakeLists.txt
 +++ b/CMakeLists.txt
 @@ -28,6 +28,8 @@ set(LIBCXX_BINARY_INCLUDE_DIR "${LIBCXX_BINARY_DIR}/include/c++build")
@@ -9,92 +9,73 @@ index 9bf1a02f0908..612cd4aab76c 100644
 +  include(GNUInstallDirs)
 +
    set(PACKAGE_NAME libcxx)
-   set(PACKAGE_VERSION 12.0.0)
+   set(PACKAGE_VERSION 13.0.0git)
    set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
-@@ -402,7 +404,7 @@ endif ()
- if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE)
-   set(LIBCXX_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_DEFAULT_TARGET_TRIPLE}/c++)
-   set(LIBCXX_HEADER_DIR ${LLVM_BINARY_DIR})
--  set(LIBCXX_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE}/c++)
-+  set(LIBCXX_INSTALL_LIBRARY_DIR ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE}/c++)
+@@ -409,7 +411,7 @@ if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE)
+   set(LIBCXX_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_DEFAULT_TARGET_TRIPLE})
+   set(LIBCXX_GENERATED_INCLUDE_DIR "${LLVM_BINARY_DIR}/include/c++/v1")
+   set(LIBCXX_GENERATED_INCLUDE_TARGET_DIR "${LLVM_BINARY_DIR}/include/${LLVM_DEFAULT_TARGET_TRIPLE}/c++/v1")
+-  set(LIBCXX_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE})
++  set(LIBCXX_INSTALL_LIBRARY_DIR ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE})
+   set(LIBCXX_INSTALL_INCLUDE_DIR "include/c++/v1")
+   set(LIBCXX_INSTALL_INCLUDE_TARGET_DIR "include/${LLVM_DEFAULT_TARGET_TRIPLE}/c++/v1")
    if(LIBCXX_LIBDIR_SUBDIR)
-     string(APPEND LIBCXX_LIBRARY_DIR /${LIBCXX_LIBDIR_SUBDIR})
-     string(APPEND LIBCXX_INSTALL_LIBRARY_DIR /${LIBCXX_LIBDIR_SUBDIR})
-@@ -410,11 +412,11 @@ if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE)
- elseif(LLVM_LIBRARY_OUTPUT_INTDIR)
+@@ -420,14 +422,14 @@ elseif(LLVM_LIBRARY_OUTPUT_INTDIR)
    set(LIBCXX_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
-   set(LIBCXX_HEADER_DIR  ${LLVM_BINARY_DIR})
+   set(LIBCXX_GENERATED_INCLUDE_DIR "${LLVM_BINARY_DIR}/include/c++/v1")
+   set(LIBCXX_GENERATED_INCLUDE_TARGET_DIR "${LIBCXX_GENERATED_INCLUDE_DIR}")
 -  set(LIBCXX_INSTALL_LIBRARY_DIR lib${LIBCXX_LIBDIR_SUFFIX})
 +  set(LIBCXX_INSTALL_LIBRARY_DIR ${CMAKE_INSTALL_LIBDIR}${LIBCXX_LIBDIR_SUFFIX})
+   set(LIBCXX_INSTALL_INCLUDE_DIR "include/c++/v1")
+   set(LIBCXX_INSTALL_INCLUDE_TARGET_DIR "${LIBCXX_INSTALL_INCLUDE_DIR}")
  else()
    set(LIBCXX_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LIBCXX_LIBDIR_SUFFIX})
-   set(LIBCXX_HEADER_DIR  ${CMAKE_BINARY_DIR})
+   set(LIBCXX_GENERATED_INCLUDE_DIR "${CMAKE_BINARY_DIR}/include/c++/v1")
+   set(LIBCXX_GENERATED_INCLUDE_TARGET_DIR "${LIBCXX_GENERATED_INCLUDE_DIR}")
 -  set(LIBCXX_INSTALL_LIBRARY_DIR lib${LIBCXX_LIBDIR_SUFFIX})
 +  set(LIBCXX_INSTALL_LIBRARY_DIR ${CMAKE_INSTALL_LIBDIR}${LIBCXX_LIBDIR_SUFFIX})
+   set(LIBCXX_INSTALL_INCLUDE_DIR "include/c++/v1")
+   set(LIBCXX_INSTALL_INCLUDE_TARGET_DIR "${LIBCXX_INSTALL_INCLUDE_DIR}")
  endif()
- 
- file(MAKE_DIRECTORY "${LIBCXX_BINARY_INCLUDE_DIR}")
 diff --git a/cmake/Modules/HandleLibCXXABI.cmake b/cmake/Modules/HandleLibCXXABI.cmake
-index 5d2764e870e9..bb1ec5de6ca2 100644
+index 5a8a4a270a1a..c06bae0001aa 100644
 --- a/cmake/Modules/HandleLibCXXABI.cmake
 +++ b/cmake/Modules/HandleLibCXXABI.cmake
 @@ -63,7 +63,7 @@ macro(setup_abi_lib abidefines abishared abistatic abifiles abidirs)
  
          if (LIBCXX_INSTALL_HEADERS)
            install(FILES "${LIBCXX_BINARY_INCLUDE_DIR}/${fpath}"
--            DESTINATION ${LIBCXX_INSTALL_HEADER_PREFIX}include/c++/v1/${dstdir}
-+            DESTINATION ${LIBCXX_INSTALL_HEADER_PREFIX}${CMAKE_INSTALL_INCLUDEDIR}/c++/v1/${dstdir}
+-            DESTINATION include/c++/v1/${dstdir}
++            DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/c++/v1/${dstdir}
              COMPONENT cxx-headers
              PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
              )
-diff --git a/include/CMakeLists.txt b/include/CMakeLists.txt
-index 29a317b8ae9a..4747263cfd1b 100644
---- a/include/CMakeLists.txt
-+++ b/include/CMakeLists.txt
-@@ -252,7 +252,7 @@ if (LIBCXX_INSTALL_HEADERS)
-   foreach(file ${files})
-     get_filename_component(dir ${file} DIRECTORY)
-     install(FILES ${file}
--      DESTINATION ${LIBCXX_INSTALL_HEADER_PREFIX}include/c++/v1/${dir}
-+      DESTINATION ${LIBCXX_INSTALL_HEADER_PREFIX}${CMAKE_INSTALL_INCLUDEDIR}/c++/v1/${dir}
-       COMPONENT cxx-headers
-       PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
-     )
-@@ -260,7 +260,7 @@ if (LIBCXX_INSTALL_HEADERS)
- 
-   # Install the generated header as __config.
-   install(FILES ${LIBCXX_BINARY_DIR}/__generated_config
--    DESTINATION ${LIBCXX_INSTALL_HEADER_PREFIX}include/c++/v1
-+    DESTINATION ${LIBCXX_INSTALL_HEADER_PREFIX}${CMAKE_INSTALL_INCLUDEDIR}/c++/v1
-     PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
-     RENAME __config
-     COMPONENT cxx-headers)
 diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
-index 9965104cb5b2..9b55dbb1d822 100644
+index 87b71f7ba334..d20a783079b7 100644
 --- a/src/CMakeLists.txt
 +++ b/src/CMakeLists.txt
-@@ -352,21 +352,21 @@ if (LIBCXX_INSTALL_SHARED_LIBRARY)
+@@ -369,21 +369,21 @@ if (LIBCXX_INSTALL_SHARED_LIBRARY)
    install(TARGETS cxx_shared
-     ARCHIVE DESTINATION ${LIBCXX_INSTALL_PREFIX}${LIBCXX_INSTALL_LIBRARY_DIR} COMPONENT cxx
-     LIBRARY DESTINATION ${LIBCXX_INSTALL_PREFIX}${LIBCXX_INSTALL_LIBRARY_DIR} COMPONENT cxx
--    RUNTIME DESTINATION ${LIBCXX_INSTALL_PREFIX}bin COMPONENT cxx)
-+    RUNTIME DESTINATION ${LIBCXX_INSTALL_PREFIX}${CMAKE_INSTALL_BINDIR} COMPONENT cxx)
+     ARCHIVE DESTINATION ${LIBCXX_INSTALL_LIBRARY_DIR} COMPONENT cxx
+     LIBRARY DESTINATION ${LIBCXX_INSTALL_LIBRARY_DIR} COMPONENT cxx
+-    RUNTIME DESTINATION bin COMPONENT cxx)
++    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT cxx)
  endif()
  
  if (LIBCXX_INSTALL_STATIC_LIBRARY)
    install(TARGETS cxx_static
-     ARCHIVE DESTINATION ${LIBCXX_INSTALL_PREFIX}${LIBCXX_INSTALL_LIBRARY_DIR} COMPONENT cxx
-     LIBRARY DESTINATION ${LIBCXX_INSTALL_PREFIX}${LIBCXX_INSTALL_LIBRARY_DIR} COMPONENT cxx
--    RUNTIME DESTINATION ${LIBCXX_INSTALL_PREFIX}bin COMPONENT cxx)
-+    RUNTIME DESTINATION ${LIBCXX_INSTALL_PREFIX}${CMAKE_INSTALL_BINDIR} COMPONENT cxx)
+     ARCHIVE DESTINATION ${LIBCXX_INSTALL_LIBRARY_DIR} COMPONENT cxx
+     LIBRARY DESTINATION ${LIBCXX_INSTALL_LIBRARY_DIR} COMPONENT cxx
+-    RUNTIME DESTINATION bin COMPONENT cxx)
++    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT cxx)
  endif()
  
  if(LIBCXX_INSTALL_EXPERIMENTAL_LIBRARY)
    install(TARGETS cxx_experimental
-     LIBRARY DESTINATION ${LIBCXX_INSTALL_PREFIX}${LIBCXX_INSTALL_LIBRARY_DIR} COMPONENT cxx
-     ARCHIVE DESTINATION ${LIBCXX_INSTALL_PREFIX}${LIBCXX_INSTALL_LIBRARY_DIR} COMPONENT cxx
--    RUNTIME DESTINATION ${LIBCXX_INSTALL_PREFIX}bin COMPONENT cxx)
-+    RUNTIME DESTINATION ${LIBCXX_INSTALL_PREFIX}${CMAKE_INSTALL_BINDIR} COMPONENT cxx)
+     LIBRARY DESTINATION ${LIBCXX_INSTALL_LIBRARY_DIR} COMPONENT cxx
+     ARCHIVE DESTINATION ${LIBCXX_INSTALL_LIBRARY_DIR} COMPONENT cxx
+-    RUNTIME DESTINATION bin COMPONENT cxx)
++    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} COMPONENT cxx)
  endif()
  
  # NOTE: This install command must go after the cxx install command otherwise
diff --git a/pkgs/development/compilers/llvm/git/libcxxabi/default.nix b/pkgs/development/compilers/llvm/git/libcxxabi/default.nix
index 3bb82d651ec7..7fadc6d6dcac 100644
--- a/pkgs/development/compilers/llvm/git/libcxxabi/default.nix
+++ b/pkgs/development/compilers/llvm/git/libcxxabi/default.nix
@@ -1,5 +1,6 @@
 { lib, stdenv, llvm_meta, cmake, python3, src, libunwind, version
 , enableShared ? !stdenv.hostPlatform.isStatic
+, libcxx
 }:
 
 stdenv.mkDerivation rec {
@@ -26,7 +27,9 @@ stdenv.mkDerivation rec {
   nativeBuildInputs = [ cmake python3 ];
   buildInputs = lib.optional (!stdenv.isDarwin && !stdenv.isFreeBSD && !stdenv.hostPlatform.isWasm) libunwind;
 
-  cmakeFlags = lib.optionals (stdenv.hostPlatform.useLLVM or false) [
+  cmakeFlags = [
+    "-DLIBCXXABI_LIBCXX_INCLUDES=${libcxx.dev}/include/c++/v1"
+  ] ++ lib.optionals (stdenv.hostPlatform.useLLVM or false) [
     "-DLLVM_ENABLE_LIBCXX=ON"
     "-DLIBCXXABI_USE_LLVM_UNWINDER=ON"
   ] ++ lib.optionals stdenv.hostPlatform.isWasm [
diff --git a/pkgs/development/compilers/llvm/git/libcxxabi/gnu-install-dirs.patch b/pkgs/development/compilers/llvm/git/libcxxabi/gnu-install-dirs.patch
index b49b1685940f..45641acb0c74 100644
--- a/pkgs/development/compilers/llvm/git/libcxxabi/gnu-install-dirs.patch
+++ b/pkgs/development/compilers/llvm/git/libcxxabi/gnu-install-dirs.patch
@@ -1,5 +1,5 @@
 diff --git a/CMakeLists.txt b/CMakeLists.txt
-index 426c855288fc..a9812a994f53 100644
+index 1e8b73aa38cc..6f7b2a25d205 100644
 --- a/CMakeLists.txt
 +++ b/CMakeLists.txt
 @@ -27,6 +27,8 @@ set(LIBCXXABI_LIBCXX_PATH "${CMAKE_CURRENT_LIST_DIR}/../libcxx" CACHE PATH
@@ -9,26 +9,28 @@ index 426c855288fc..a9812a994f53 100644
 +  include(GNUInstallDirs)
 +
    set(PACKAGE_NAME libcxxabi)
-   set(PACKAGE_VERSION 11.0.0)
+   set(PACKAGE_VERSION 11.0.0git)
    set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
-@@ -180,17 +182,17 @@ set(CMAKE_MODULE_PATH
- 
+@@ -196,7 +198,7 @@ set(CMAKE_MODULE_PATH
  if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE)
-   set(LIBCXXABI_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_DEFAULT_TARGET_TRIPLE}/c++)
--  set(LIBCXXABI_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE}/c++)
-+  set(LIBCXXABI_INSTALL_LIBRARY_DIR ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE}/c++)
+   set(LIBCXXABI_HEADER_DIR ${LLVM_BINARY_DIR})
+   set(LIBCXXABI_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_DEFAULT_TARGET_TRIPLE})
+-  set(LIBCXXABI_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE})
++  set(LIBCXXABI_INSTALL_LIBRARY_DIR ${CMAKE_INSTALL_LIBDIR}${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE})
    if(LIBCXX_LIBDIR_SUBDIR)
      string(APPEND LIBCXXABI_LIBRARY_DIR /${LIBCXXABI_LIBDIR_SUBDIR})
      string(APPEND LIBCXXABI_INSTALL_LIBRARY_DIR /${LIBCXXABI_LIBDIR_SUBDIR})
-   endif()
+@@ -204,11 +206,11 @@ if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE)
  elseif(LLVM_LIBRARY_OUTPUT_INTDIR)
+   set(LIBCXXABI_HEADER_DIR ${LLVM_BINARY_DIR})
    set(LIBCXXABI_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
 -  set(LIBCXXABI_INSTALL_LIBRARY_DIR lib${LIBCXXABI_LIBDIR_SUFFIX})
 +  set(LIBCXXABI_INSTALL_LIBRARY_DIR ${CMAKE_INSTALL_LIBDIR}${LIBCXXABI_LIBDIR_SUFFIX})
  else()
+   set(LIBCXXABI_HEADER_DIR ${CMAKE_BINARY_DIR})
    set(LIBCXXABI_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LIBCXXABI_LIBDIR_SUFFIX})
 -  set(LIBCXXABI_INSTALL_LIBRARY_DIR lib${LIBCXXABI_LIBDIR_SUFFIX})
 +  set(LIBCXXABI_INSTALL_LIBRARY_DIR ${CMAKE_INSTALL_LIBDIR}${LIBCXXABI_LIBDIR_SUFFIX})
  endif()
  
- set(LIBCXXABI_INSTALL_PREFIX "" CACHE STRING "Define libc++abi destination prefix.")
+ set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LIBCXXABI_LIBRARY_DIR})