Use project() command to provide project version

- Note that we cannot find libiconv without saying that Exiv2 is also a C project

CMakeLists.txt

@@ -1,5 +1,8 @@
 cmake_minimum_required( VERSION 3.3.2 )
-project( exiv2 )
+project( exiv2
+    VERSION 0.27.0
+    LANGUAGES CXX C
+)
 
 include(cmake/mainSetup.cmake  REQUIRED)
 
@@ -7,9 +10,8 @@ set( PACKAGE_COPYRIGHT      "Andreas Huggel" )
 set( PACKAGE_BUGREPORT      "http://github.com/exiv2/exiv2" )
 set( PACKAGE                "exiv2" )
 set( PACKAGE_NAME           "exiv2" )
-set( PACKAGE_VERSION        "0.26" )
 set( PACKAGE_URL            "http://www.exiv2.org" )
-set( PACKAGE_STRING         "${PACKAGE_NAME} ${PACKAGE_VERSION}" )
+set( PACKAGE_STRING         "${PACKAGE_NAME} ${PROJECT_VERSION}" )
 set( GENERIC_LIB_VERSION    "26.0.0" )
 set( GENERIC_LIB_SOVERSION  "26" )
 

cmake/config.h.cmake

@@ -107,7 +107,7 @@
 #cmakedefine EXV_PACKAGE_STRING "@EXV_PACKAGE_STRING@"
 
 /* Define to the version of this package. */
-#cmakedefine EXV_PACKAGE_VERSION "@PACKAGE_VERSION@"
+#cmakedefine EXV_PACKAGE_VERSION "@PROJECT_VERSION@"
 
 /* Define to empty if `const' does not conform to ANSI C. */
 #cmakedefine const

cmake/generateConfigFile.cmake

@@ -11,7 +11,7 @@ set(EXV_HAVE_LENSDATA    ${EXIV2_ENABLE_LENSDATA})
 set(EXV_HAVE_PRINTUCS2   ${EXIV2_ENABLE_PRINTUCS2})
 
 set(EXV_PACKAGE          ${PACKAGE})
-set(EXV_PACKAGE_VERSION  ${PACKAGE_VERSION})
+set(EXV_PACKAGE_VERSION  ${PROJECT_VERSION})
 set(EXV_PACKAGE_STRING   ${PACKAGE_STRING})
 if (${EXIV2_ENABLE_XMP} OR ${EXIV2_ENABLE_EXTERNAL_XMP})
     set(EXV_HAVE_XMP_TOOLKIT ON)

cmake/printSummary.cmake

@@ -35,7 +35,6 @@ message( STATUS "" )
 message( STATUS "Compiler info: ${CMAKE_CXX_COMPILER_ID} (${CMAKE_CXX_COMPILER}) ; version: ${CMAKE_CXX_COMPILER_VERSION}")
 
 message( STATUS "------------------------------------------------------------------" )
-message( STATUS "${PACKAGE_STRING} configure results        <${PACKAGE_URL}>"        )
 OptionOutput( "Building shared library:            " BUILD_SHARED_LIBS               )
 OptionOutput( "Building PNG support:               " EXIV2_ENABLE_PNG AND ZLIB_FOUND )
 if    ( EXIV2_ENABLE_EXTERNAL_XMP )