From 6b241160eddc96ec098c74a041a327d545df6ff7 Mon Sep 17 00:00:00 2001
From: Chandler Carruth <chandlerc@gmail.com>
Date: Tue, 19 Oct 2010 08:21:25 +0000
Subject: [PATCH] First step to allowing the resource directory of Clang to be
 adjusted for strange packaging environments. The primary result of this is to
 expose a (normally empty) CLANG_RESOURCE_DIR string in the autoconf and CMake
 builds. This will in turn be used by a subsequent commit to Clang.

Regenerated configure and config.h.in thanks to Nick. =D


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116802 91177308-0d34-0410-b5e6-96231b3b80d8
---
 CMakeLists.txt                     |  3 +++
 autoconf/configure.ac              |  7 +++++++
 configure                          | 19 ++++++++++++++++++-
 include/llvm/Config/config.h.cmake |  3 +++
 include/llvm/Config/config.h.in    |  3 +++
 5 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 19257201fc0..4c182ff3859 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -80,6 +80,9 @@ else( MSVC )
     CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")
 endif( MSVC )
 
+set(CLANG_RESOURCE_DIR "" CACHE STRING
+  "Relative directory from the Clang binary to its resource files.")
+
 set(C_INCLUDE_DIRS "" CACHE STRING
   "Colon separated list of directories clang will search for headers.")
 
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index dca8333254a..ec360527db3 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -804,6 +804,13 @@ case "$withval" in
   *) AC_MSG_ERROR([Invalid path for --with-ocaml-libdir. Provide full path]) ;;
 esac
 
+AC_ARG_WITH(clang-resource-dir,
+  AS_HELP_STRING([--with-clang-resource-dir],
+    [Relative directory from the Clang binary for resource files]),,
+    withval="")
+AC_DEFINE_UNQUOTED(CLANG_RESOURCE_DIR,"$withval",
+                   [Relative directory for resource files])
+
 AC_ARG_WITH(c-include-dirs,
   AS_HELP_STRING([--with-c-include-dirs],
     [Colon separated list of directories clang will search for headers]),,
diff --git a/configure b/configure
index 34031375dd7..e76a0b32f3f 100755
--- a/configure
+++ b/configure
@@ -1442,6 +1442,9 @@ Optional Packages:
   --with-extra-options    Specify additional options to compile LLVM with
   --with-ocaml-libdir     Specify install location for ocaml bindings (default
                           is stdlib)
+  --with-clang-resource-dir
+                          Relative directory from the Clang binary for
+                          resource files
   --with-c-include-dirs   Colon separated list of directories clang will
                           search for headers
   --with-cxx-include-root Directory with the libstdc++ headers.
@@ -5279,6 +5282,20 @@ echo "$as_me: error: Invalid path for --with-ocaml-libdir. Provide full path" >&
 esac
 
 
+# Check whether --with-clang-resource-dir was given.
+if test "${with_clang_resource_dir+set}" = set; then
+  withval=$with_clang_resource_dir;
+else
+  withval=""
+fi
+
+
+cat >>confdefs.h <<_ACEOF
+#define CLANG_RESOURCE_DIR "$withval"
+_ACEOF
+
+
+
 # Check whether --with-c-include-dirs was given.
 if test "${with_c_include_dirs+set}" = set; then
   withval=$with_c_include_dirs;
@@ -11450,7 +11467,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 11453 "configure"
+#line 11470 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
diff --git a/include/llvm/Config/config.h.cmake b/include/llvm/Config/config.h.cmake
index 5e0fa1ea9a1..26a39b224e4 100644
--- a/include/llvm/Config/config.h.cmake
+++ b/include/llvm/Config/config.h.cmake
@@ -12,6 +12,9 @@
 /* Define if CBE is enabled for printf %a output */
 #undef ENABLE_CBE_PRINTF_A
 
+/* Relative directory for resource files */
+#define CLANG_RESOURCE_DIR "${CLANG_RESOURCE_DIR}"
+
 /* Directories clang will search for headers */
 #define C_INCLUDE_DIRS "${C_INCLUDE_DIRS}"
 
diff --git a/include/llvm/Config/config.h.in b/include/llvm/Config/config.h.in
index 1aeb5ce3376..1cc0c7bc767 100644
--- a/include/llvm/Config/config.h.in
+++ b/include/llvm/Config/config.h.in
@@ -3,6 +3,9 @@
 #ifndef CONFIG_H
 #define CONFIG_H
 
+/* Relative directory for resource files */
+#undef CLANG_RESOURCE_DIR
+
 /* 32 bit multilib directory. */
 #undef CXX_INCLUDE_32BIT_DIR