From b7210ed60d517aebb25c23a2f407ee59562587dd Mon Sep 17 00:00:00 2001
From: Gereon Kremer <gereon.kremer@cs.rwth-aachen.de>
Date: Wed, 31 Mar 2021 21:16:05 +0200
Subject: Refactor SymFPU dependency (#6218)

This PR refactors the contrib script to download SymFPU to a cmake external project.
---
 cmake/FindSymFPU.cmake | 47 +++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 43 insertions(+), 4 deletions(-)

(limited to 'cmake')

diff --git a/cmake/FindSymFPU.cmake b/cmake/FindSymFPU.cmake
index 47a047ce0..da8beac99 100644
--- a/cmake/FindSymFPU.cmake
+++ b/cmake/FindSymFPU.cmake
@@ -9,12 +9,51 @@
 ## directory for licensing information.
 ##
 # Find SymFPU
-# SymFPU_FOUND - system has SymFPU lib
-# SymFPU_INCLUDE_DIR - the SymFPU include directory
+# SymFPU_FOUND - should always be true
+# SymFPU - interface target for the SymFPU headers
 
 find_path(SymFPU_INCLUDE_DIR NAMES symfpu/core/unpackedFloat.h)
 
-include(FindPackageHandleStandardArgs)
-find_package_handle_standard_args(SymFPU DEFAULT_MSG SymFPU_INCLUDE_DIR)
+if(SymFPU_INCLUDE_DIR)
+  # Found SymFPU to be installed system-wide
+  set(SymFPU_FOUND_SYSTEM TRUE)
+else()
+  set(SymFPU_FOUND_SYSTEM FALSE)
+  include(ExternalProject)
+  include(deps-helper)
 
+  set(SymFPU_COMMIT "8fbe139bf0071cbe0758d2f6690a546c69ff0053")
+
+  ExternalProject_Add(
+    SymFPU-EP
+    PREFIX ${DEPS_PREFIX}
+    URL https://github.com/martin-cs/symfpu/archive/${SymFPU_COMMIT}.tar.gz
+    URL_HASH SHA1=9e00045130b93e3c2a46ce73a1b5b6451340dc46
+    CONFIGURE_COMMAND ""
+    BUILD_COMMAND ""
+    INSTALL_COMMAND ${CMAKE_COMMAND} -E copy_directory <SOURCE_DIR>/core
+                    <INSTALL_DIR>/include/symfpu/core
+    COMMAND ${CMAKE_COMMAND} -E copy_directory <SOURCE_DIR>/utils
+            <INSTALL_DIR>/include/symfpu/utils
+  )
+
+  set(SymFPU_INCLUDE_DIR "${DEPS_BASE}/include/")
+endif()
+
+set(SymFPU_FOUND TRUE)
+
+add_library(SymFPU INTERFACE IMPORTED GLOBAL)
+set_target_properties(
+  SymFPU PROPERTIES INTERFACE_INCLUDE_DIRECTORIES "${SymFPU_INCLUDE_DIR}"
+)
+
+mark_as_advanced(SymFPU_FOUND)
+mark_as_advanced(SymFPU_FOUND_SYSTEM)
 mark_as_advanced(SymFPU_INCLUDE_DIR)
+
+if(SymFPU_FOUND_SYSTEM)
+  message(STATUS "Found SymFPU: ${SymFPU_INCLUDE_DIR}")
+else()
+  message(STATUS "Building SymFPU: ${SymFPU_INCLUDE_DIR}")
+  add_dependencies(SymFPU SymFPU-EP)
+endif()
-- 
cgit v1.2.3