Option to enable/disable install

CMakeLists.txt

@@ -7,6 +7,7 @@ PROJECT(FP16 C)
 OPTION(FP16_BUILD_TESTS "Build FP16 unit tests" ON)
 OPTION(FP16_BUILD_BENCHMARKS "Build FP16 micro-benchmarks" ON)
 OPTION(FP16_BUILD_COMPARATIVE_BENCHMARKS "Build FP16 micro-benchmarks comparing to alternatives" OFF)
+OPTION(FP16_INSTALL_LIBRARY "Install the FP16 library headers" ON)
 
 # ---[ CMake options
 IF(FP16_BUILD_TESTS OR FP16_BUILD_BENCHMARKS)
@@ -38,20 +39,21 @@ IF(FP16_BUILD_BENCHMARKS AND NOT DEFINED GOOGLEBENCHMARK_SOURCE_DIR)
   SET(GOOGLEBENCHMARK_SOURCE_DIR "${CMAKE_BINARY_DIR}/googlebenchmark-source" CACHE STRING "Google Benchmark source directory")
 ENDIF()
 
-INCLUDE(GNUInstallDirs)
-
 # ---[ FP16 library
 ADD_LIBRARY(fp16 INTERFACE)
 TARGET_INCLUDE_DIRECTORIES(fp16 INTERFACE
     "$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>"
     "$<INSTALL_INTERFACE:include>")
 
-INSTALL(FILES include/fp16.h
-  DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
-INSTALL(FILES
-    include/fp16/bitcasts.h
-    include/fp16/fp16.h
-  DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/fp16")
+IF(FP16_INSTALL_LIBRARY)
+  INCLUDE(GNUInstallDirs)
+  INSTALL(FILES include/fp16.h
+    DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
+  INSTALL(FILES
+      include/fp16/bitcasts.h
+      include/fp16/fp16.h
+    DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/fp16")
+ENDIF()
 
 IF(FP16_BUILD_TESTS)
   # ---[ Build google test