Uses CMAKE_CURRENT_ variables instead of PROJECT_

CMakeLists.txt

@@ -11,7 +11,7 @@
 cmake_minimum_required(VERSION 2.8.11)
 
 # In-source builds are disabled.
-if ("${CMAKE_SOURCE_DIR}" STREQUAL "${PROJECT_BINARY_DIR}")
+if ("${CMAKE_CURRENT_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_BINARY_DIR}")
     message(FATAL_ERROR
         "CMake generation is not possible within the source directory!"
         "\n Remove the CMakeCache.txt file and try again from another folder, e.g.:"
@@ -23,7 +23,7 @@ if ("${CMAKE_SOURCE_DIR}" STREQUAL "${PROJECT_BINARY_DIR}")
     )
 endif()
 
-set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_SOURCE_DIR}/cmake;${PROJECT_SOURCE_DIR}/cmake")
+set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH};${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
 set(EXECUTABLE_OUTPUT_PATH "${CMAKE_BINARY_DIR}/bin")
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${EXECUTABLE_OUTPUT_PATH}")
@@ -91,7 +91,7 @@ endif()
 #
 ###############################################################################
 
-if(NOT EXISTS ${PROJECT_SOURCE_DIR}/.cppan)
+if(NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.cppan)
     if (NOT Leptonica_DIR AND NOT MSVC)
         find_package(PkgConfig REQUIRED)
         pkg_check_modules(Leptonica REQUIRED lept>=${MINIMUM_LEPTONICA_VERSION})
@@ -119,8 +119,8 @@ option(BUILD_TESTS "Build tests" OFF)
 #
 ###############################################################################
 
-set(AUTOCONFIG_SRC ${PROJECT_BINARY_DIR}/config_auto.h.in)
-set(AUTOCONFIG ${PROJECT_BINARY_DIR}/config_auto.h)
+set(AUTOCONFIG_SRC ${CMAKE_CURRENT_BINARY_DIR}/config_auto.h.in)
+set(AUTOCONFIG ${CMAKE_CURRENT_BINARY_DIR}/config_auto.h)
 
 include(Configure)
 
@@ -129,20 +129,20 @@ configure_file(${AUTOCONFIG_SRC} ${AUTOCONFIG} @ONLY)
 set(INCLUDE_DIR "${CMAKE_INSTALL_PREFIX}/include" "${CMAKE_INSTALL_PREFIX}/include/tesseract")
 
 configure_file(
-    ${PROJECT_SOURCE_DIR}/src/api/tess_version.h.in
-    ${PROJECT_BINARY_DIR}/api/tess_version.h @ONLY)
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/api/tess_version.h.in
+    ${CMAKE_CURRENT_BINARY_DIR}/api/tess_version.h @ONLY)
 configure_file(
-    ${PROJECT_SOURCE_DIR}/src/vs2010/tesseract/tesseract.rc.in
-    ${PROJECT_BINARY_DIR}/vs2010/tesseract/tesseract.rc @ONLY)
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/vs2010/tesseract/tesseract.rc.in
+    ${CMAKE_CURRENT_BINARY_DIR}/vs2010/tesseract/tesseract.rc @ONLY)
 configure_file(
-    ${PROJECT_SOURCE_DIR}/src/vs2010/tesseract/libtesseract.rc.in
-    ${PROJECT_BINARY_DIR}/vs2010/tesseract/libtesseract.rc @ONLY)
+    ${CMAKE_CURRENT_SOURCE_DIR}/src/vs2010/tesseract/libtesseract.rc.in
+    ${CMAKE_CURRENT_BINARY_DIR}/vs2010/tesseract/libtesseract.rc @ONLY)
 configure_file(
-    ${PROJECT_SOURCE_DIR}/cmake/templates/TesseractConfig-version.cmake.in
-    ${PROJECT_BINARY_DIR}/TesseractConfig-version.cmake @ONLY)
+    ${CMAKE_CURRENT_SOURCE_DIR}/cmake/templates/TesseractConfig-version.cmake.in
+    ${CMAKE_CURRENT_BINARY_DIR}/TesseractConfig-version.cmake @ONLY)
 configure_file(
-    ${PROJECT_SOURCE_DIR}/cmake/templates/TesseractConfig.cmake.in
-    ${PROJECT_BINARY_DIR}/TesseractConfig.cmake @ONLY)
+    ${CMAKE_CURRENT_SOURCE_DIR}/cmake/templates/TesseractConfig.cmake.in
+    ${CMAKE_CURRENT_BINARY_DIR}/TesseractConfig.cmake @ONLY)
 
 ###############################################################################
 #
@@ -159,10 +159,10 @@ add_definitions(-DWINDLLNAME="libtesseract${VERSION_MAJOR}${VERSION_MINOR}.dll")
 
 include_directories(${Leptonica_INCLUDE_DIRS})
 
-include_directories(${PROJECT_BINARY_DIR})
+include_directories(${CMAKE_CURRENT_BINARY_DIR})
 
 include_directories(src/api)
-include_directories(${PROJECT_BINARY_DIR}/api)
+include_directories(${CMAKE_CURRENT_BINARY_DIR}/api)
 include_directories(src/arch)
 include_directories(src/ccmain)
 include_directories(src/ccstruct)
@@ -230,7 +230,7 @@ if (WIN32)
         set(tesseract_hdr
             ${tesseract_hdr}
             ${CMAKE_CURRENT_SOURCE_DIR}/src/vs2010/tesseract/resource.h)
-        set(tesseract_rsc ${PROJECT_BINARY_DIR}/vs2010/tesseract/libtesseract.rc)
+        set(tesseract_rsc ${CMAKE_CURRENT_BINARY_DIR}/vs2010/tesseract/libtesseract.rc)
         set_source_files_properties(
             ${CMAKE_CURRENT_SOURCE_DIR}/src/arch/dotproductsse.cpp
             PROPERTIES COMPILE_DEFINITIONS __SSE4_1__)
@@ -281,11 +281,11 @@ endif()
 
 if (NOT CPPAN_BUILD)
     target_link_libraries       (libtesseract ${Leptonica_LIBRARIES})
-    export(TARGETS libtesseract FILE ${PROJECT_BINARY_DIR}/TesseractTargets.cmake)
+    export(TARGETS libtesseract FILE ${CMAKE_CURRENT_BINARY_DIR}/TesseractTargets.cmake)
 else()
     target_link_libraries       (libtesseract pvt.cppan.demo.danbloomberg.leptonica)
-    file(WRITE ${PROJECT_BINARY_DIR}/TesseractTargets.cmake "include(${PROJECT_BINARY_DIR}/cppan.cmake)\n")
-    export(TARGETS libtesseract APPEND FILE ${PROJECT_BINARY_DIR}/TesseractTargets.cmake)
+    file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/TesseractTargets.cmake "include(${CMAKE_CURRENT_BINARY_DIR}/cppan.cmake)\n")
+    export(TARGETS libtesseract APPEND FILE ${CMAKE_CURRENT_BINARY_DIR}/TesseractTargets.cmake)
 endif()
 
 ########################################
@@ -294,15 +294,15 @@ endif()
 
 set(tesseractmain_src src/api/tesseractmain.cpp)
 if (MSVC)
-    set(tesseractmain_rsc ${PROJECT_BINARY_DIR}/vs2010/tesseract/tesseract.rc)
+    set(tesseractmain_rsc ${CMAKE_CURRENT_BINARY_DIR}/vs2010/tesseract/tesseract.rc)
 endif()
 
 add_executable                  (tesseract ${tesseractmain_src} ${tesseractmain_rsc})
 target_link_libraries           (tesseract libtesseract)
 
 ########################################
 
-if (BUILD_TESTS AND EXISTS ${PROJECT_SOURCE_DIR}/googletest/CMakeLists.txt)
+if (BUILD_TESTS AND EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/googletest/CMakeLists.txt)
     add_subdirectory(googletest)
     add_executable(tesseract_tests tests/tesseracttests.cpp)
     target_link_libraries(tesseract_tests gtest_main)
@@ -321,8 +321,8 @@ install(TARGETS tesseract RUNTIME DESTINATION bin LIBRARY DESTINATION lib ARCHIV
 install(TARGETS libtesseract EXPORT TesseractTargets RUNTIME DESTINATION bin LIBRARY DESTINATION lib ARCHIVE DESTINATION lib)
 install(EXPORT TesseractTargets DESTINATION cmake)
 install(FILES
-    ${PROJECT_BINARY_DIR}/TesseractConfig.cmake
-    ${PROJECT_BINARY_DIR}/TesseractConfig-version.cmake
+    ${CMAKE_CURRENT_BINARY_DIR}/TesseractConfig.cmake
+    ${CMAKE_CURRENT_BINARY_DIR}/TesseractConfig-version.cmake
     DESTINATION cmake)
 
 install(FILES
@@ -394,7 +394,7 @@ install(FILES
     src/lstm/tfnetwork.h
     src/lstm/weightmatrix.h
 
-    #${PROJECT_BINARY_DIR}/src/endianness.h
+    #${CMAKE_CURRENT_BINARY_DIR}/src/endianness.h
     DESTINATION include/tesseract)