From 7396f77054104c378451d0066707c925f4643fd8 Mon Sep 17 00:00:00 2001
From: Andrey Astafyev <dev@246060.ru>
Date: Thu, 24 Jun 2021 11:38:58 +0300
Subject: [PATCH] =?UTF-8?q?=D0=9C=D0=BE=D0=B4=D1=83=D0=BB=D0=B8=20=D0=B4?=
 =?UTF-8?q?=D0=BB=D1=8F=20=D0=BF=D0=BE=D0=B8=D1=81=D0=BA=D0=B0=20=D1=81=20?=
 =?UTF-8?q?=D0=BF=D0=BE=D0=BC=D0=BE=D1=89=D1=8C=D1=8E=20CMake?=
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---
 cmake/FindMyxlib.cmake           | 48 +++++++++++++++++++----------
 cmake/FindMyxlibThirdparty.cmake | 52 ++++++++++++++++++++++++--------
 2 files changed, 71 insertions(+), 29 deletions(-)

diff --git a/cmake/FindMyxlib.cmake b/cmake/FindMyxlib.cmake
index 9827bc4..74058c2 100644
--- a/cmake/FindMyxlib.cmake
+++ b/cmake/FindMyxlib.cmake
@@ -1,21 +1,37 @@
-set(MYXLIB_PREFIX "" CACHE PATH "The path to the previx of an myxlib installation")
+if(NOT MYXLIB_PREFIX STREQUAL CMAKE_BINARY_DIR)
+  set(MYXLIB_PREFIX
+      ""
+      CACHE PATH "The path to the previx of an myxlib installation")
 
-find_path(MYXLIB_INCLUDE_DIRS NAMES myx/core/config.hpp PATHS ${MYXLIB_PREFIX}/include)
-find_library(MYXLIB_QT_LIBRARY NAMES myx-qt PATHS ${MYXLIB_PREFIX}/lib)
-find_library(MYXLIB_FILESYSTEM_LIBRARY NAMES myx-filesystem PATHS ${MYXLIB_PREFIX}/lib)
+  find_path(
+    MYXLIB_INCLUDE_DIRS
+    NAMES myx/core/config.hpp
+    PATHS ${MYXLIB_PREFIX}/include)
+  find_library(
+    MYXLIB_QT_LIBRARY
+    NAMES myx-qt
+    PATHS ${MYXLIB_PREFIX}/lib)
+  find_library(
+    MYXLIB_FILESYSTEM_LIBRARY
+    NAMES myx-filesystem
+    PATHS ${MYXLIB_PREFIX}/lib)
 
-if(MYXLIB_INCLUDE_DIRS AND MYXLIB_QT_LIBRARY AND MYXLIB_FILESYSTEM_LIBRARY)
-  get_filename_component(MYXLIB_LIBRARY_DIR ${MYXLIB_QT_LIBRARY} DIRECTORY CACHE)
-  set(MYXLIB_FOUND TRUE)
-endif()
-
-if(MYXLIB_FOUND)
-  if(NOT MYXLIB_FIND_QUIETLY)
-    MESSAGE(STATUS "Found myxlib")
+  if(MYXLIB_INCLUDE_DIRS
+     AND MYXLIB_QT_LIBRARY
+     AND MYXLIB_FILESYSTEM_LIBRARY)
+    get_filename_component(MYXLIB_LIBRARY_DIR ${MYXLIB_QT_LIBRARY} DIRECTORY
+                           CACHE)
+    set(MYXLIB_FOUND TRUE)
   endif()
-  set(HAVE_MYXLIB 1)
-elseif(MYXLIB_FOUND)
-  if(MYXLIB_FIND_REQUIRED)
-    message(FATAL_ERROR "Could not find myxlib")
+
+  if(MYXLIB_FOUND)
+    if(NOT MYXLIB_FIND_QUIETLY)
+      message(STATUS "Found myxlib")
+    endif()
+    set(HAVE_MYXLIB 1)
+  elseif(MYXLIB_FOUND)
+    if(MYXLIB_FIND_REQUIRED)
+      message(FATAL_ERROR "Could not find myxlib")
+    endif()
   endif()
 endif()
diff --git a/cmake/FindMyxlibThirdparty.cmake b/cmake/FindMyxlibThirdparty.cmake
index c9e6664..9a8d2df 100644
--- a/cmake/FindMyxlibThirdparty.cmake
+++ b/cmake/FindMyxlibThirdparty.cmake
@@ -1,14 +1,40 @@
-ExternalProject_Add(
-    myxlib
-    SOURCE_DIR ${CMAKE_SOURCE_DIR}/thirdparty/myxlib
-    INSTALL_DIR ${CMAKE_BINARY_DIR}
-    DOWNLOAD_COMMAND ""
-    CONFIGURE_COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" -DCMLIB_MAIN_DIR=${CMLIB_MAIN_DIR} ${CMLIB_EXT_PROJ_DEFAULT_ARGS} <SOURCE_DIR>
-    BUILD_COMMAND true
-  )
+# Подключение внешних проектов
+include(ExternalProject)
 
-set(MYXLIB_PREFIX  ${CMAKE_BINARY_DIR} CACHE FILEPATH "" FORCE)
-set(MYXLIB_INCLUDE_DIRS ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_INCLUDEDIR} CACHE PATH "" FORCE)
-set(MYXLIB_LIBRARY_DIR ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR} CACHE PATH "" FORCE)
-set(MYXLIB_QT_LIBRARY  ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}/libmyx-qt.a CACHE FILEPATH "" FORCE)
-set(MYXLIB_FILESYSTEM_LIBRARY ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}/libmyx-filesystem.a CACHE FILEPATH "" FORCE)
+# cmake-format: off
+list(APPEND _ext_project_args
+  myxlib
+  SOURCE_DIR          ${CMAKE_SOURCE_DIR}/thirdparty/myxlib
+  INSTALL_DIR         ${CMAKE_BINARY_DIR}
+  DOWNLOAD_COMMAND    ""
+  CONFIGURE_COMMAND   ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}"
+                         -DCMLIB_MAIN_DIR=${CMLIB_MAIN_DIR}
+                         ${CMLIB_EXT_PROJ_DEFAULT_ARGS}
+                      <SOURCE_DIR>)
+
+if(MyxlibThirdparty_FIND_COMPONENTS STREQUAL "headers")
+  list(APPEND _ext_project_args
+    BUILD_COMMAND     true
+    INSTALL_COMMAND   ${CMAKE_MAKE_PROGRAM} myxlib-install-headers)
+endif()
+ExternalProject_Add(${_ext_project_args})
+unset(_ext_project_args)
+
+set(MYXLIB_IS_EXTERNAL_PROJECT ON CACHE BOOL "" FORCE)
+# cmake-format: on
+
+set(MYXLIB_PREFIX
+    ${CMAKE_BINARY_DIR}
+    CACHE FILEPATH "" FORCE)
+set(MYXLIB_INCLUDE_DIRS
+    ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_INCLUDEDIR}
+    CACHE PATH "" FORCE)
+set(MYXLIB_LIBRARY_DIR
+    ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}
+    CACHE PATH "" FORCE)
+set(MYXLIB_QT_LIBRARY
+    ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}/libmyx-qt.a
+    CACHE FILEPATH "" FORCE)
+set(MYXLIB_FILESYSTEM_LIBRARY
+    ${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_LIBDIR}/libmyx-filesystem.a
+    CACHE FILEPATH "" FORCE)