From 389b715e0f8fed761bd7a58d663ec33047a76c79 Mon Sep 17 00:00:00 2001
From: Cedric Venet <cedric.venet@laposte.net>
Date: Fri, 24 Oct 2008 11:24:33 +0000
Subject: [PATCH] Modify the cmake build system so that if it doesn't find
 bison, it will use the pregenerated file in from the svn (.cvs). Work only
 for windows for the moment. Tested on Vista64 with MSVC2008express.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58090 91177308-0d34-0410-b5e6-96231b3b80d8
---
 cmake/config-w32.cmake       | 10 +++++-----
 lib/AsmParser/CMakeLists.txt | 26 +++++++++++++++++++++++++-
 2 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/cmake/config-w32.cmake b/cmake/config-w32.cmake
index 208e77628ca..d971d2a1370 100755
--- a/cmake/config-w32.cmake
+++ b/cmake/config-w32.cmake
@@ -1,9 +1,9 @@
 # tbi: Configurar ficheros.
-configure_file(${llvm_include_path}/llvm/ADT/hash_map.h.in ${llvm_builded_incs_dir}/ADT/hash_map.h)
-configure_file(${llvm_include_path}/llvm/ADT/hash_set.h.in ${llvm_builded_incs_dir}/ADT/hash_set.h)
-configure_file(${llvm_include_path}/llvm/ADT/iterator.h.in ${llvm_builded_incs_dir}/ADT/iterator.h)
-configure_file(${llvm_include_path}/llvm/Support/DataTypes.h.in ${llvm_builded_incs_dir}/Support/DataTypes.h)
-configure_file(${llvm_include_path}/llvm/Config/config.h.in ${llvm_builded_incs_dir}/Config/config.h)
+configure_file(${llvm_include_path}/llvm/ADT/hash_map.h.in ${llvm_builded_incs_dir}/ADT/hash_map.h COPYONLY)
+configure_file(${llvm_include_path}/llvm/ADT/hash_set.h.in ${llvm_builded_incs_dir}/ADT/hash_set.h COPYONLY)
+configure_file(${llvm_include_path}/llvm/ADT/iterator.h.in ${llvm_builded_incs_dir}/ADT/iterator.h COPYONLY)
+configure_file(${llvm_include_path}/llvm/Support/DataTypes.h.in ${llvm_builded_incs_dir}/Support/DataTypes.h COPYONLY)
+configure_file(${llvm_include_path}/llvm/Config/config.h.in ${llvm_builded_incs_dir}/Config/config.h COPYONLY)
 
 file(READ ${llvm_include_path}/../win32/config.h vc_config_text)
 file(APPEND ${llvm_builded_incs_dir}/Config/config.h ${vc_config_text})
diff --git a/lib/AsmParser/CMakeLists.txt b/lib/AsmParser/CMakeLists.txt
index c12f414d8ed..b8283c5d8a7 100644
--- a/lib/AsmParser/CMakeLists.txt
+++ b/lib/AsmParser/CMakeLists.txt
@@ -1,15 +1,39 @@
 # AsmParser, with a Bison generated parser:
 include(FindBison)
 find_bison()
+
+IF(BISON_EXECUTABLE)
 bison_generator(
   "llvmAsm"
   "${CMAKE_CURRENT_SOURCE_DIR}/llvmAsmParser.y"
   "${CMAKE_CURRENT_SOURCE_DIR}/llvmAsmParser.h"
   "${CMAKE_CURRENT_SOURCE_DIR}/llvmAsmParser.cpp"
   )
+ELSE(BISON_EXECUTABLE)
+  MESSAGE(STATUS "Bison not found, the pregenerated files will be used")
+
+  IF(WIN32)
+    FILE(TO_NATIVE_PATH ${CMAKE_CURRENT_SOURCE_DIR} WIN_SOURCE_DIR)
+
+    ADD_CUSTOM_COMMAND(
+      OUTPUT "${CMAKE_CURRENT_SOURCE_DIR}/llvmAsmParser.cpp"
+      DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/llvmAsmParser.cpp.cvs"
+      COMMAND copy \"${WIN_SOURCE_DIR}\\llvmAsmParser.cpp.cvs\" \"${WIN_SOURCE_DIR}\\llvmAsmParser.cpp\"
+    )
+    ADD_CUSTOM_COMMAND(
+      OUTPUT "${CMAKE_CURRENT_SOURCE_DIR}/llvmAsmParser.h"
+      DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/llvmAsmParser.h.cvs"
+      COMMAND copy \"${WIN_SOURCE_DIR}\\llvmAsmParser.h.cvs\" \"${WIN_SOURCE_DIR}\\llvmAsmParser.h\"
+    )
+  ELSE(WIN32)
+    MESSAGE(SEND_ERROR "Not implemented")
+    # fixme do the same with cp instead of copy
+  ENDIF(WIN32)
+ENDIF(BISON_EXECUTABLE)
 
 add_llvm_library(LLVMAsmParser
-  llvmAsmParser.cpp  # Generated from llvmAsmParser.y
+  llvmAsmParser.cpp  # Generated from llvmAsmParser.y or copyied from corresponding .cvs
+  llvmAsmParser.h    # needed for the associated custom command to work
   LLLexer.cpp
   Parser.cpp
   )