cmake: Add cmake config files for new find_package() mode.

CMakeLists.txt

@@ -89,6 +89,22 @@ install(
     pkgconfig
 )
 
+# cmake config files
+configure_file(libssh-config.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/libssh-config.cmake @ONLY)
+configure_file(libssh-config-version.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/libssh-config-version.cmake @ONLY)
+install(
+    FILES
+        ${CMAKE_CURRENT_BINARY_DIR}/libssh-config.cmake
+        ${CMAKE_CURRENT_BINARY_DIR}/libssh-config-version.cmake
+    DESTINATION
+        ${CMAKE_INSTALL_DIR}
+    COMPONENT
+        devel
+)
+
+# in tree build settings
+configure_file(libssh-build-tree-settings.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/libssh-build-tree-settings.cmake @ONLY)
+
 add_subdirectory(examples)
 
 if (WITH_TESTING)

cmake/Modules/DefineInstallationPaths.cmake

@@ -4,6 +4,7 @@ if (WIN32)
   set(SBIN_INSTALL_DIR "." CACHE PATH "-")
   set(LIB_INSTALL_DIR "lib" CACHE PATH "-")
   set(INCLUDE_INSTALL_DIR "include" CACHE PATH "-")
+  set(CMAKE_INSTALL_DIR "CMake" CACHE PATH "-")
   set(PLUGIN_INSTALL_DIR "plugins" CACHE PATH "-")
   set(HTML_INSTALL_DIR "doc/HTML" CACHE PATH "-")
   set(ICON_INSTALL_DIR "." CACHE PATH "-")
@@ -58,6 +59,10 @@ elseif (UNIX OR OS2)
     CACHE PATH "The subdirectory to the header prefix (default prefix/include)"
   )
 
+  set(CMAKE_INSTALL_DIR
+    "${LIB_INSTALL_DIR}/cmake"
+    CACHE PATH "The subdirectory to install cmake config files")
+
   SET(DATA_INSTALL_DIR
     "${DATA_INSTALL_PREFIX}"
     CACHE PATH "The parent directory where applications can install their data (default prefix/share/${APPLICATION_NAME})"

libssh-build-tree-settings.cmake.in

@@ -0,0 +1 @@
+set(LIBSSH_INLUDE_DIRS @PROJECT_SOURCE_DIR@/include)

libssh-config-version.cmake.in

@@ -0,0 +1,11 @@
+set(PACKAGE_VERSION @APPLICATION_VERSION@)
+
+# Check whether the requested PACKAGE_FIND_VERSION is compatible
+if("${PACKAGE_VERSION}" VERSION_LESS "${PACKAGE_FIND_VERSION}")
+    set(PACKAGE_VERSION_COMPATIBLE FALSE)
+else()
+    set(PACKAGE_VERSION_COMPATIBLE TRUE)
+    if ("${PACKAGE_VERSION}" VERSION_EQUAL "${PACKAGE_FIND_VERSION}")
+        set(PACKAGE_VERSION_EXACT TRUE)
+    endif()
+endif()

libssh-config.cmake.in

@@ -0,0 +1,11 @@
+get_filename_component(LIBSSH_CMAKE_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
+
+if (EXISTS "${LIBSSH_CMAKE_DIR}/CMakeCache.txt")
+    # In build tree
+    include(${LIBSSH_CMAKE_DIR}/libssh-build-tree-settings.cmake)
+else()
+    set(LIBSSH_INCLUDE_DIRS @INCLUDE_INSTALL_DIR@)
+endif()
+
+set(LIBSSH_LIRBARY @LIB_INSTALL_DIR@/libssh.so)
+set(LIBSSH_LIRBARIES @LIB_INSTALL_DIR@/libssh.so)