Expose library version via havalver.h file

Author: mikedld

include/CMakeLists.txt

@@ -2,6 +2,8 @@ include(TestBigEndian)
 
 test_big_endian(HAVAL_BIG_ENDIAN)
 
+configure_file(havalver.h.in havalver.h @ONLY)
+
 add_library(haval INTERFACE)
 
 if(NOT HAVAL_STANDALONE_BUILD)
@@ -11,6 +13,7 @@ endif()
 target_include_directories(haval
     INTERFACE
         "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>"
+        "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}>"
         "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
 
 target_compile_definitions(haval
@@ -26,5 +29,6 @@ if(HAVAL_ENABLE_INSTALL)
         FILES
             haval.h
             haval.hpp
+            "${CMAKE_CURRENT_BINARY_DIR}/havalver.h"
         DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
 endif()

include/havalver.h.in

@@ -0,0 +1,32 @@
+// Copyright (c) 2020, Mike Gelfand
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this
+//    list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+//    this list of conditions and the following disclaimer in the documentation
+//    and/or other materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its
+//    contributors may be used to endorse or promote products derived from
+//    this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#pragma once
+
+#define HAVAL_VERSION_MAJOR @PROJECT_VERSION_MAJOR@
+#define HAVAL_VERSION_MINOR @PROJECT_VERSION_MINOR@