1 files changed, 109 insertions, 0 deletions
diff --git a/Modules/CMakeExtraGeneratorDetermineCompilerMacrosAndIncludeDirs.cmake b/Modules/CMakeExtraGeneratorDetermineCompilerMacrosAndIncludeDirs.cmake
new file mode 100644
index 000000000..455f95fe3
--- /dev/null
+++ b/Modules/CMakeExtraGeneratorDetermineCompilerMacrosAndIncludeDirs.cmake
@@ -0,0 +1,109 @@
+
+#=============================================================================
+# Copyright 2009 Kitware, Inc.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+# This file is included by CMakeFindEclipseCDT4.cmake and CMakeFindCodeBlocks.cmake
+
+# The Eclipse and the CodeBlocks generators need to know the standard include path
+# so that they can find the headers at runtime and parsing etc. works better
+# This is done here by actually running gcc with the options so it prints its
+# system include directories, which are parsed then and stored in the cache.
+MACRO(_DETERMINE_GCC_SYSTEM_INCLUDE_DIRS _lang _resultIncludeDirs _resultDefines)
+  SET(${_resultIncludeDirs})
+  SET(_gccOutput)
+  FILE(WRITE "${CMAKE_BINARY_DIR}/CMakeFiles/dummy" "\n" )
+
+  IF (${_lang} STREQUAL "c++")
+    SET(_compilerExecutable "${CMAKE_CXX_COMPILER}")
+    SET(_arg1 "${CMAKE_CXX_COMPILER_ARG1}")
+  ELSE ()
+    SET(_compilerExecutable "${CMAKE_C_COMPILER}")
+    SET(_arg1 "${CMAKE_C_COMPILER_ARG1}")
+  ENDIF ()
+  EXECUTE_PROCESS(COMMAND ${_compilerExecutable} ${_arg1} -v -E -x ${_lang} -dD dummy
+                  WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/CMakeFiles
+                  ERROR_VARIABLE _gccOutput
+                  OUTPUT_VARIABLE _gccStdout )
+  FILE(REMOVE "${CMAKE_BINARY_DIR}/CMakeFiles/dummy")
+
+  # First find the system include dirs:
+  IF( "${_gccOutput}" MATCHES "> search starts here[^\n]+\n *(.+ *\n) *End of (search) list" )
+
+    # split the output into lines and then remove leading and trailing spaces from each of them:
+    STRING(REGEX MATCHALL "[^\n]+\n" _includeLines "${CMAKE_MATCH_1}")
+    FOREACH(nextLine ${_includeLines})
+      STRING(STRIP "${nextLine}" _includePath)
+      LIST(APPEND ${_resultIncludeDirs} "${_includePath}")
+    ENDFOREACH(nextLine)
+
+  ENDIF()
+
+
+  # now find the builtin macros:
+  STRING(REGEX MATCHALL "#define[^\n]+\n" _defineLines "${_gccStdout}")
+# A few example lines which the regexp below has to match properly:
+#  #define   MAX(a,b) ((a) > (b) ? (a) : (b))
+#  #define __fastcall __attribute__((__fastcall__))
+#  #define   FOO (23)
+#  #define __UINTMAX_TYPE__ long long unsigned int
+#  #define __UINTMAX_TYPE__ long long unsigned int
+#  #define __i386__  1
+
+  FOREACH(nextLine ${_defineLines})
+    STRING(REGEX MATCH "^#define +([A-Za-z_][A-Za-z0-9_]*)(\\([^\\)]+\\))? +(.+) *$" _dummy "${nextLine}")
+    SET(_name "${CMAKE_MATCH_1}${CMAKE_MATCH_2}")
+    STRING(STRIP "${CMAKE_MATCH_3}" _value)
+    #MESSAGE(STATUS "m1: -${CMAKE_MATCH_1}- m2: -${CMAKE_MATCH_2}- m3: -${CMAKE_MATCH_3}-")
+
+    LIST(APPEND ${_resultDefines} "${_name}")
+    IF(_value)
+      LIST(APPEND ${_resultDefines} "${_value}")
+    ELSE()
+      LIST(APPEND ${_resultDefines} " ")
+    ENDIF()
+  ENDFOREACH(nextLine)
+
+ENDMACRO(_DETERMINE_GCC_SYSTEM_INCLUDE_DIRS _lang)
+
+# Save the current LC_ALL, LC_MESSAGES, and LANG environment variables and set them
+# to "C" that way GCC's "search starts here" text is in English and we can grok it.
+SET(_orig_lc_all      $ENV{LC_ALL})
+SET(_orig_lc_messages $ENV{LC_MESSAGES})
+SET(_orig_lang        $ENV{LANG})
+
+SET(ENV{LC_ALL}      C)
+SET(ENV{LC_MESSAGES} C)
+SET(ENV{LANG}        C)
+
+# Now check for C, works for gcc and Intel compiler at least
+IF (NOT CMAKE_EXTRA_GENERATOR_C_SYSTEM_INCLUDE_DIRS)
+  IF ("${CMAKE_C_COMPILER_ID}" MATCHES GNU  OR  "${CMAKE_C_COMPILER_ID}" MATCHES Intel)
+    _DETERMINE_GCC_SYSTEM_INCLUDE_DIRS(c _dirs _defines)
+    SET(CMAKE_EXTRA_GENERATOR_C_SYSTEM_INCLUDE_DIRS "${_dirs}" CACHE INTERNAL "C compiler system include directories")
+    SET(CMAKE_EXTRA_GENERATOR_C_SYSTEM_DEFINED_MACROS "${_defines}" CACHE INTERNAL "C compiler system defined macros")
+  ENDIF ()
+ENDIF ()
+
+# And now the same for C++
+IF (NOT CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_INCLUDE_DIRS)
+  IF ("${CMAKE_CXX_COMPILER_ID}" MATCHES GNU  OR  "${CMAKE_CXX_COMPILER_ID}" MATCHES Intel)
+    _DETERMINE_GCC_SYSTEM_INCLUDE_DIRS(c++ _dirs _defines)
+    SET(CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_INCLUDE_DIRS "${_dirs}" CACHE INTERNAL "CXX compiler system include directories")
+    SET(CMAKE_EXTRA_GENERATOR_CXX_SYSTEM_DEFINED_MACROS "${_defines}" CACHE INTERNAL "CXX compiler system defined macros")
+  ENDIF ()
+ENDIF ()
+
+# Restore original LC_ALL, LC_MESSAGES, and LANG
+SET(ENV{LC_ALL}      ${_orig_lc_all})
+SET(ENV{LC_MESSAGES} ${_orig_lc_messages})
+SET(ENV{LANG}        ${_orig_lang})