Добавлен поиск Qwt

FindQwt.cmake

@@ -0,0 +1,41 @@
+set(QWT_PREFIX "" CACHE PATH "The path to the prefix of an Qwt installation")
+
+find_path(QWT_INCLUDE_DIR NAMES qwt.h
+  PATHS
+  ${QWT_PREFIX}/include
+  /opt/local/include
+  /usr/include
+  /usr/local/include
+  PATH_SUFFIXES qwt-qt5 qwt qwt6
+)
+
+find_library(QWT_LIBRARIES NAMES qwt-qt5 qwt6-qt5 qwt qwt6
+  PATHS
+  ${QWT_PREFIX}/lib
+  /opt/local/lib
+  /usr/lib
+  /usr/local/lib
+)
+
+if(QWT_INCLUDE_DIR AND QWT_LIBRARIES AND NOT TARGET Qwt::Qwt)
+  get_filename_component(QWT_LIBRARY_DIR ${QWT_LIBRARIES} PATH)
+  set(QWT_FOUND TRUE)
+  add_library(Qwt::Qwt INTERFACE IMPORTED)
+  set_target_properties(Qwt::Qwt PROPERTIES
+      INTERFACE_INCLUDE_DIRECTORIES "${QWT_INCLUDE_DIR}"
+      INTERFACE_LINK_LIBRARIES "${QWT_LIBRARIES}"
+  )
+endif()
+
+if(QWT_FOUND)
+  file(READ ${QWT_INCLUDE_DIR}/qwt_global.h qwt_header)
+  string(REGEX REPLACE "^.*QWT_VERSION_STR +\"([^\"]+)\".*$" "\\1" QWT_VERSION_STR "${qwt_header}")
+  if(NOT QWT_FIND_QUIETLY)
+    message(STATUS "Found Qwt: ${QWT_LIBRARY} (${QWT_VERSION_STR})")
+  endif(NOT QWT_FIND_QUIETLY)
+else(QWT_FOUND)
+  if(QWT_FIND_REQUIRED)
+    message(FATAL_ERROR "Could not find Qwt")
+  endif(QWT_FIND_REQUIRED)
+endif(QWT_FOUND)
+