1 files changed, 99 insertions, 0 deletions
diff --git a/cmake/Modules/GrMiscUtils.cmake b/cmake/Modules/GrMiscUtils.cmake
new file mode 100644
index 000000000..10de21c7c
--- /dev/null
+++ b/cmake/Modules/GrMiscUtils.cmake
@@ -0,0 +1,99 @@
+# Copyright 2010-2011 Free Software Foundation, Inc.
+# 
+# This file is part of GNU Radio
+# 
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+# 
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+
+if(DEFINED __INCLUDED_GR_MISC_UTILS_CMAKE)
+    return()
+endif()
+set(__INCLUDED_GR_MISC_UTILS_CMAKE TRUE)
+
+########################################################################
+# Set global variable macro.
+# Used for subdirectories to export settings.
+# Example: include and library paths.
+########################################################################
+function(GR_SET_GLOBAL var)
+    set(${var} ${ARGN} CACHE INTERNAL "" FORCE)
+endfunction(GR_SET_GLOBAL)
+
+########################################################################
+# Set the pre-processor definition if the condition is true.
+#  - def the pre-processor definition to set and condition name
+########################################################################
+function(GR_ADD_COND_DEF def)
+    if(${def})
+        add_definitions(-D${def})
+    endif(${def})
+endfunction(GR_ADD_COND_DEF)
+
+########################################################################
+# Check for a header and conditionally set a compile define.
+#  - hdr the relative path to the header file
+#  - def the pre-processor definition to set
+########################################################################
+function(GR_CHECK_HDR_N_DEF hdr def)
+    include(CheckIncludeFileCXX)
+    CHECK_INCLUDE_FILE_CXX(${hdr} ${def})
+    GR_ADD_COND_DEF(${def})
+endfunction(GR_CHECK_HDR_N_DEF)
+
+########################################################################
+# Include subdirectory macro.
+# Sets the CMake directory variables,
+# includes the subdirectory CMakeLists.txt,
+# resets the CMake directory variables.
+#
+# This macro includes subdirectories rather than adding them
+# so that the subdirectory can affect variables in the level above.
+# This provides a work-around for the lack of convenience libraries.
+# This way a subdirectory can append to the list of library sources.
+########################################################################
+macro(GR_INCLUDE_SUBDIRECTORY subdir)
+    #insert the current directories on the front of the list
+    list(INSERT _cmake_source_dirs 0 ${CMAKE_CURRENT_SOURCE_DIR})
+    list(INSERT _cmake_binary_dirs 0 ${CMAKE_CURRENT_BINARY_DIR})
+
+    #set the current directories to the names of the subdirs
+    set(CMAKE_CURRENT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/${subdir})
+    set(CMAKE_CURRENT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/${subdir})
+
+    #include the subdirectory CMakeLists to run it
+    file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    include(${CMAKE_CURRENT_SOURCE_DIR}/CMakeLists.txt)
+
+    #reset the value of the current directories
+    list(GET _cmake_source_dirs 0 CMAKE_CURRENT_SOURCE_DIR)
+    list(GET _cmake_binary_dirs 0 CMAKE_CURRENT_BINARY_DIR)
+
+    #pop the subdir names of the front of the list
+    list(REMOVE_AT _cmake_source_dirs 0)
+    list(REMOVE_AT _cmake_binary_dirs 0)
+endmacro(GR_INCLUDE_SUBDIRECTORY)
+
+########################################################################
+# Check if a compiler flag works and conditionally set a compile define.
+#  - flag the compiler flag to check for
+#  - have the variable to set with result
+########################################################################
+INCLUDE(CheckCXXCompilerFlag)
+MACRO(GR_ADD_CXX_COMPILER_FLAG_IF_AVAILABLE flag have)
+    CHECK_CXX_COMPILER_FLAG(${flag} ${have})
+    IF(${have})
+        ADD_DEFINITIONS(${flag})
+    ENDIF(${have})
+ENDMACRO(GR_ADD_CXX_COMPILER_FLAG_IF_AVAILABLE)