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authorAlex Neundorf <neundorf@kde.org>2011-08-01 23:46:39 (GMT)
committerAlex Neundorf <neundorf@kde.org>2011-08-01 23:46:39 (GMT)
commite2e8c0a41225f5449a8139a1ce0219940f902665 (patch)
treea62a704f398e37765df0a50361b58b5f41be9471 /Modules/CMakeExtraGeneratorDetermineCompilerMacrosAndIncludeDirs.cmake
parent92c0dc50fc73dd9866f48c521b0aff7473eb3a59 (diff)
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Also put builtin include dirs into CodeBlocks project file
Refactor code from CMakeFindEclipseCDT4.cmake so it can be used alkso for CodeBlocks, and move it into new file CMakeExtraGeneratorDetermineCompilerMacrosAndIncludeDirs.cmake. Alex
Diffstat (limited to 'Modules/CMakeExtraGeneratorDetermineCompilerMacrosAndIncludeDirs.cmake')
-rw-r--r--Modules/CMakeExtraGeneratorDetermineCompilerMacrosAndIncludeDirs.cmake118
1 files changed, 118 insertions, 0 deletions
diff --git a/Modules/CMakeExtraGeneratorDetermineCompilerMacrosAndIncludeDirs.cmake b/Modules/CMakeExtraGeneratorDetermineCompilerMacrosAndIncludeDirs.cmake
new file mode 100644
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--- /dev/null
+++ b/Modules/CMakeExtraGeneratorDetermineCompilerMacrosAndIncludeDirs.cmake
@@ -0,0 +1,118 @@
+
+#=============================================================================
+# 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}")
+ ELSE ()
+ SET(_compilerExecutable "${CMAKE_C_COMPILER}")
+ ENDIF ()
+ EXECUTE_PROCESS(COMMAND ${_compilerExecutable} -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 $ENV{LANG})
+IF(_orig_lc_all)
+ SET(ENV{LC_ALL} C)
+ENDIF()
+IF(_orig_lc_messages)
+ SET(ENV{LC_MESSAGES} C)
+ENDIF()
+IF(_orig_lang)
+ SET(ENV{LANG} C)
+ENDIF()
+
+# Now check for C, works for gcc and Intel compiler at least
+IF (NOT CMAKE_EXTRA_GENERATOR_C_SYSTEM_INCLUDE_DIRS)
+ IF ("${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
+IF(_orig_lc_all)
+ SET(ENV{LC_ALL} ${_orig_lc_all})
+ENDIF()
+IF(_orig_lc_messages)
+ SET(ENV{LC_MESSAGES} ${_orig_lc_messages})
+ENDIF()
+IF(_orig_lang)
+ SET(ENV{LANG} ${_orig_lang})
+ENDIF()