[cmake] Move cmake build into build/cmake to avoid collision with established GNUmake build system.

.gitattributes

-*           text eol=lf
-*.png       binary
-build/*/*   text eol=crlf
+*              text eol=lf
+*.png          binary
+build/*/*      text eol=crlf
+CMakeLists.txt text eol=lf

.gitignore

@@ -6,6 +6,10 @@
 /build/*/*.suo
 /build/*/*.vcxproj.user
 /build/*/tmp/
+/build/cmake/CMakeFiles/
+/build/cmake/CMakeCache.txt
+/build/cmake/cmake_install.cmake
+/build/cmake/Makefile
 /auto/extensions
 /auto/registry
 /bin

CMakeLists.txt → build/cmake/CMakeLists.txt

@@ -14,6 +14,8 @@ option (BUILD_UTILS "utilities" ON)
 
 set (GLEW_VERSION "1.12.0")
 
+set (GLEW_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../..)
+
 set (CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set (CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set (CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
@@ -30,10 +32,10 @@ set (GLEW_LIBRARIES ${OPENGL_LIBRARIES})
 
 add_definitions (-DGLEW_BUILD -DGLEW_NO_GLU)
 
-include_directories (${PROJECT_SOURCE_DIR}/include)
+include_directories (${GLEW_DIR}/include)
 
-add_library (glew SHARED src/glew.c)
-add_library (glew_s STATIC src/glew.c)
+add_library (glew SHARED ${GLEW_DIR}/src/glew.c)
+add_library (glew_s STATIC ${GLEW_DIR}/src/glew.c)
 target_link_libraries (glew ${GLEW_LIBRARIES})
 target_link_libraries (glew_s ${GLEW_LIBRARIES})
 set_target_properties (glew PROPERTIES OUTPUT_NAME ${GLEW_LIB_NAME})
@@ -41,8 +43,8 @@ set_target_properties (glew_s PROPERTIES OUTPUT_NAME ${GLEW_LIB_NAME})
 set_target_properties (glew PROPERTIES PREFIX "${DLL_PREFIX}")
 set_target_properties (glew_s PROPERTIES PREFIX lib)
 
-add_library(glewmx SHARED src/glew.c )
-add_library(glewmx_s STATIC src/glew.c )
+add_library(glewmx SHARED ${GLEW_DIR}/src/glew.c )
+add_library(glewmx_s STATIC ${GLEW_DIR}/src/glew.c )
 target_link_libraries (glewmx ${GLEW_LIBRARIES})
 target_link_libraries (glewmx_s ${GLEW_LIBRARIES})
 set_target_properties (glewmx PROPERTIES COMPILE_FLAGS "-DGLEW_MX" OUTPUT_NAME ${GLEW_LIB_NAME}mx)
@@ -57,10 +59,10 @@ install ( TARGETS glew glew_s glewmx glewmx_s
 )
 
 if (BUILD_UTILS)
-  add_executable (glewinfo src/glewinfo.c)
+  add_executable (glewinfo ${GLEW_DIR}/src/glewinfo.c)
   target_link_libraries (glewinfo glew)
 
-  add_executable (visualinfo src/visualinfo.c)
+  add_executable (visualinfo ${GLEW_DIR}/src/visualinfo.c)
   target_link_libraries (visualinfo glew)
 
   install ( TARGETS glewinfo visualinfo
@@ -76,11 +78,11 @@ set (version ${GLEW_VERSION})
 set (libname ${GLEW_LIB_NAME})
 set (cflags)
 set (requireslib glu)
-configure_file (glew.pc.in ${CMAKE_BINARY_DIR}/glew.pc @ONLY)
+configure_file (${GLEW_DIR}/glew.pc.in ${GLEW_DIR}/glew.pc @ONLY)
 set (cflags "-DGLEW_MX")
 set (libname ${GLEW_LIB_NAME}mx)
-configure_file (glew.pc.in ${CMAKE_BINARY_DIR}/glewmx.pc @ONLY)
+configure_file (${GLEW_DIR}/glew.pc.in ${GLEW_DIR}/glewmx.pc @ONLY)
 
-install(FILES ${CMAKE_BINARY_DIR}/glew.pc ${CMAKE_BINARY_DIR}/glewmx.pc
+install(FILES ${GLEW_DIR}/glew.pc ${GLEW_DIR}/glewmx.pc
         DESTINATION lib/pkgconfig
 )