Merge pull request #109 from thewtex/cmake-tweaks

CMake tweaks
Thank you Matt for this addition.
It all looks good.

CMakeLists.txt

@@ -30,6 +30,7 @@ option(OJPH_ENABLE_INTEL_AVX512 "enables the use of AVX512 SIMD instructions and
 option(BUILD_SHARED_LIBS "Shared Libraries" ON)
 option(OJPH_ENABLE_TIFF_SUPPORT "Enables input and output support for TIFF files" ON)
 option(OJPH_BUILD_TESTS "Enables building test code" OFF)
+option(OJPH_BUILD_EXECUTABLES "Enables building command line executables" ON)
 
 # This is related to how the timestamp is set for URL downloaded files.
 # Set DOWNLOAD_EXTRACT_TIMESTAMP
@@ -229,8 +230,10 @@ if(NOT OJPH_DISABLE_INTEL_SIMD)
  list(APPEND OJPH_COMPRESS ${OJPH_IMG_IO_AVX2})
 endif()
 
-add_executable(ojph_expand ${OJPH_EXPAND})
-add_executable(ojph_compress ${OJPH_COMPRESS})
+if(OJPH_BUILD_EXECUTABLES)
+ add_executable(ojph_expand ${OJPH_EXPAND})
+ add_executable(ojph_compress ${OJPH_COMPRESS})
+endif()
 
 if (MSVC)
  set_source_files_properties(src/apps/others/ojph_img_io_avx2.cpp PROPERTIES COMPILE_FLAGS "/arch:AVX2")
@@ -239,24 +242,28 @@ else()
  set_source_files_properties(src/apps/others/ojph_img_io_avx2.cpp PROPERTIES COMPILE_FLAGS -mavx2)
 endif()
 
-if( USE_TIFF )
- target_link_libraries(ojph_expand openjph ${TIFF_LIBRARIES})
- target_link_libraries(ojph_compress openjph ${TIFF_LIBRARIES})
-else()
- target_link_libraries(ojph_expand openjph)
- target_link_libraries(ojph_compress openjph)
+if(OJPH_BUILD_EXECUTABLES)
+ if( USE_TIFF )
+ target_link_libraries(ojph_expand PUBLIC openjph ${TIFF_LIBRARIES})
+ target_link_libraries(ojph_compress PUBLIC openjph ${TIFF_LIBRARIES})
+ else()
+ target_link_libraries(ojph_expand PUBLIC openjph)
+ target_link_libraries(ojph_compress PUBLIC openjph)
+ endif()
 endif()
 
 
 ################################################################################################
 # Install
 ################################################################################################
 
-install(TARGETS ojph_expand
- DESTINATION bin)
+if(OJPH_BUILD_EXECUTABLES)
+ install(TARGETS ojph_expand
+ DESTINATION bin)
 
-install(TARGETS ojph_compress
- DESTINATION bin)
+ install(TARGETS ojph_compress
+ DESTINATION bin)
+endif()
 
 include(GNUInstallDirs)
 install(TARGETS openjph LIBRARY