vcpkg/ports/suitesparse/build_fixes.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9602cce..dafb434 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,14 +5,6 @@
 # Updated by jesnault (jerome.esnault@inria.fr) 2014-01-21
 # -----------------------------------------------------------------
 
-option(HUNTER_ENABLED "Enable Hunter package manager support" OFF)
-include(cmake/HunterGate.cmake)
-
-HunterGate(
-  URL "https://github.com/ruslo/hunter/archive/v0.23.214.tar.gz"
-  SHA1 "e14bc153a7f16d6a5eeec845fb0283c8fad8c358"
-)
-
 PROJECT(SuiteSparseProject)
 
 cmake_minimum_required(VERSION 3.1)
@@ -47,29 +39,9 @@ else()
     message(STATUS "Using user defined CMAKE_INSTALL_PREFIX: ${CMAKE_INSTALL_PREFIX}")
 endif()
 
-# Fix GKlib path:
-IF(NOT WIN32)
-  SET(GKLIB_PATH "${${PROJECT_NAME}_SOURCE_DIR}/SuiteSparse/metis-5.1.0/GKlib" CACHE INTERNAL "Path to GKlib (for METIS)" FORCE)
-ENDIF()
-
-# allow creating DLLs in Windows without touching the source code:
-IF(NOT ${CMAKE_VERSION} VERSION_LESS "3.4.0" AND WIN32)
-	set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
-ENDIF()
-
 ## get CMAKE_INSTALL_BINDIR and CMAKE_INSTALL_LIBDIR
 include(GNUInstallDirs)
 
-if(CMAKE_SIZEOF_VOID_P MATCHES "8")
-  set(SUITESPARSE_LIB_POSTFIX "64")
-else()
-  set(SUITESPARSE_LIB_POSTFIX "")
-endif()
-
-## get POSTFIX for lib install dir
-set(LIB_POSTFIX "${SUITESPARSE_LIB_POSTFIX}" CACHE STRING "suffix for 32/64 inst dir placement")
-mark_as_advanced(LIB_POSTFIX)
-
 # We want libraries to be named "libXXX" and "libXXXd" in all compilers:
 # ------------------------------------------------------------------------
 set(CMAKE_DEBUG_POSTFIX  "d")
@@ -77,59 +49,6 @@ IF(MSVC)
 	set(SP_LIB_PREFIX "lib")  # Libs are: "libXXX"
 ENDIF(MSVC)
 
-## check if we can build metis
-SET(BUILD_METIS_DEFAULT ON)
-if(NOT EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/SuiteSparse/metis-5.1.0/CMakeLists.txt")
-	SET(BUILD_METIS_DEFAULT OFF)
-endif()
-
-SET(WITH_CUDA OFF CACHE BOOL "Build with CUDA support")
-
-SET(BUILD_METIS ${BUILD_METIS_DEFAULT} CACHE BOOL "Build METIS for partitioning?")
-SET(METIS_DIR ${${PROJECT_NAME}_SOURCE_DIR}/SuiteSparse/metis-5.1.0 CACHE PATH "Source directory of METIS")
-
-if(BUILD_METIS)
-	## prepare the installation :
-	## using metis target here is not possible because this target is added in another branch of the CMake structure
-	## TRICK: need to dynamically modify the metis CMakeLists.txt file before it going to parsed...
-	## (very ugly/poor for a metis project get from SCM (git/svn/cvs) but it's works ;) and it doesn't matter if metis was get from .zip)
-	if(EXISTS "${METIS_DIR}/libmetis/CMakeLists.txt")
-		file(READ "${METIS_DIR}/libmetis/CMakeLists.txt" contentFile)
-		string(REGEX MATCH "EXPORT 	SuiteSparseTargets" alreadyModified ${contentFile}) ## use a string pattern to check if we have to do the modif
-		if(NOT alreadyModified)
-			file(APPEND "${METIS_DIR}/libmetis/CMakeLists.txt"
-			"
-				set_target_properties(metis PROPERTIES PUBLIC_HEADER \"../include/metis.h\")
-				install(TARGETS metis ## this line is also the string pattern to check if the modification had already done
-						EXPORT 	SuiteSparseTargets
-						RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-						LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-						ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-						PUBLIC_HEADER DESTINATION include
-				)
-			"
-			)
-		endif()
-	endif()
-    add_subdirectory(SuiteSparse/metis-5.1.0) ## important part for building metis from its src files
-endif(BUILD_METIS)
-
-
-## For EXPORT only :
-## Previous version of cmake (>2.8.12) doesn't auto take into account external lib (here I mean blas and lapack) we need to link to for our current target we want to export.
-## Or at least we need to investigate how to do with previous version.
-## This may cause some trouble in case you want to build in static mode and then use it into another custom project.
-## You will need to manually link your target into your custom project to the correct dependencies link interfaces.
-if("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}.${CMAKE_PATCH_VERSION}" GREATER 2.8.11) ## (policies introduced both in 2.8.12)
-	set(EXPORT_USE_INTERFACE_LINK_LIBRARIES ON CACHE BOOL "")
-	mark_as_advanced(EXPORT_USE_INTERFACE_LINK_LIBRARIES)
-	if(EXPORT_USE_INTERFACE_LINK_LIBRARIES)
-		cmake_policy(SET CMP0023 NEW) ## just for respecting the new target_link_libraries(...) signature procedure
-		cmake_policy(SET CMP0022 NEW) ## use INTERFACE_LINK_LIBRARIES property for in-build targets and ignore old properties (IMPORTED_)?LINK_INTERFACE_LIBRARIES(_<CONFIG>)?
-		## Here, next version of cmake 2.8.12 auto take into account the link interface dependencies (see generated cmake/SuiteSparse-config*.cmake into your install dir)
-	endif()
-endif()
-
 ## install_suitesparse_project(targetName headersList)
 ## factorise the way we will install all projects (part of the suitesparse project)
 ## <targetName> is the target of the current project you build
@@ -176,16 +95,16 @@ macro(declare_suitesparse_library targetName srcsList headersList)
 		set(dsl_TARGET_PUBLIC_LINK "")
 	endif()
 	if(WITH_CUDA)
-		find_package(CUDA)
+		find_package(CUDA REQUIRED)
 	endif()
-	IF(${CUDA_FOUND})
+	IF(CUDA_FOUND)
 		INCLUDE_DIRECTORIES(${CUDA_INCLUDE_DIRS})
 		INCLUDE_DIRECTORIES(${SuiteSparse_GPUQREngine_INCLUDE})
 		INCLUDE_DIRECTORIES(${SuiteSparse_GPURuntime_INCLUDE})
 		CUDA_ADD_LIBRARY(${targetName} ${srcsList} ${headersList})
-	ELSE(${CUDA_FOUND})
+	ELSE()
 		ADD_LIBRARY(${targetName} ${srcsList} ${headersList})
-	ENDIF(${CUDA_FOUND})
+	ENDIF()
 	SET_TARGET_PROPERTIES(${targetName} PROPERTIES
 		OUTPUT_NAME ${SP_LIB_PREFIX}${targetName}
 	)
@@ -211,44 +130,30 @@ MACRO(REMOVE_MATCHING_FILES_FROM_LIST match_expr lst_files)
 ENDMACRO(REMOVE_MATCHING_FILES_FROM_LIST)
 
 if(WITH_CUDA)
-	FIND_PACKAGE(cuda)
-	IF(${CUDA_FOUND})
+	FIND_PACKAGE(CUDA REQUIRED)
+	IF(CUDA_FOUND)
 		ADD_DEFINITIONS(-DGPU_BLAS)
-	ENDIF(${CUDA_FOUND})
+	ENDIF()
 endif()
 
-hunter_add_package(LAPACK) # only in effect if HUNTER_ENABLED is set
-# prefer LAPACK config file
-find_package(LAPACK CONFIG)
-if (LAPACK_FOUND AND TARGET blas AND TARGET lapack)
-  message(STATUS "found lapack and blas config file. Linking targets lapack and blas")
-  message(STATUS "- LAPACK_CONFIG: ${LAPACK_CONFIG}")
-  set(SuiteSparse_LINKER_LAPACK_BLAS_LIBS lapack blas)
-  # for suitesparse-config file set method used to find LAPACK (and BLAS)
-  set(SuiteSparse_LAPACK_used_CONFIG YES)
-else()
-  # missing config file or targets, try BLAS and LAPACK
-  find_package(BLAS)
-  find_package(LAPACK)
-  if (BLAS_FOUND AND LAPACK_FOUND)
+  find_package(BLAS REQUIRED)
+  find_package(LAPACK REQUIRED)
     message(STATUS "found lapack and blas config file. Linking targets lapack and blas")
     message(STATUS "- LAPACK_LIBRARIES: ${LAPACK_LIBRARIES}")
     message(STATUS "- BLAS_LIBRARIES:   ${BLAS_LIBRARIES}")
     set(SuiteSparse_LINKER_LAPACK_BLAS_LIBS ${LAPACK_LIBRARIES} ${BLAS_LIBRARIES})
     # for suitesparse-config file set method used to find LAPACK (and BLAS)
     set(SuiteSparse_LAPACK_used_CONFIG NO)
-  else () # LAPACK is not found
-    message(FATAL_ERROR "lapack not found")
-  endif()
-endif()
 
-IF(BUILD_METIS)
+IF(USE_VCPKG_METIS)
+	find_package(metis REQUIRED)
 	set(SuiteSparse_LINKER_METIS_LIBS "metis")
-	## namespaced library target for config
-	set(SuiteSparse_EXPORTED_METIS_LIBS "SuiteSparse::metis")
+	set(SuiteSparse_EXPORTED_METIS_LIBS "metis")
+	set(SuiteSparse_FIND_DEPENDENCY_METIS "find_dependency(metis REQUIRED)")
 else()
 	set(SuiteSparse_LINKER_METIS_LIBS "")
 	set(SuiteSparse_EXPORTED_METIS_LIBS "")
+	set(SuiteSparse_FIND_PACKAGE_METIS "")
 ENDIF()
 
 add_subdirectory(SuiteSparse)
@@ -287,7 +192,7 @@ endmacro()
 # get SuiteSparse version
 get_SuiteSparse_Version()
 
-set(ConfigPackageLocation ${CMAKE_INSTALL_LIBDIR}/cmake/suitesparse-${SuiteSparse_VERSION})
+set(ConfigPackageLocation ${CMAKE_INSTALL_LIBDIR}/cmake/suitesparse)
 ## create targets file
 export(EXPORT SuiteSparseTargets
 	FILE "${CMAKE_CURRENT_BINARY_DIR}/suitesparse/suitesparse-targets.cmake"
@@ -301,7 +206,7 @@ configure_file(cmake/SuiteSparse-config-install.cmake.in
 ## do the EXPORT for allowing other project to easily use suitesparse with cmake
 install(EXPORT SuiteSparseTargets
 	FILE
-		SuiteSparse-targets.cmake
+		suitesparse-targets.cmake
 	NAMESPACE
 		SuiteSparse::
 	DESTINATION
diff --git a/SuiteSparse/CMakeLists.txt b/SuiteSparse/CMakeLists.txt
index c6e2834..6fdfb01 100644
--- a/SuiteSparse/CMakeLists.txt
+++ b/SuiteSparse/CMakeLists.txt
@@ -1,23 +1,5 @@
 PROJECT(SuiteSparse)
 
-# Set optimized building:
-IF(CMAKE_COMPILER_IS_GNUCXX AND NOT CMAKE_BUILD_TYPE MATCHES "Debug")
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
-	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3")
-	# only optimize for native processer when NOT cross compiling
-	if(NOT CMAKE_CROSSCOMPILING)
-		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mtune=native")
-		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mtune=native")
-	endif(NOT CMAKE_CROSSCOMPILING)
-ENDIF(CMAKE_COMPILER_IS_GNUCXX AND NOT CMAKE_BUILD_TYPE MATCHES "Debug")
-
-# Global flags:
-IF (BUILD_METIS)
-	INCLUDE_DIRECTORIES("${METIS_SOURCE_DIR}/include")
-ELSE (BUILD_METIS)
-	ADD_DEFINITIONS(-DNPARTITION)
-ENDIF ( BUILD_METIS)
-
 # Disable COMPLEX numbers: disable it by default, since it causes problems in some platforms.
 SET(HAVE_COMPLEX OFF CACHE BOOL "Enables building SuiteSparse with complex numbers (disabled by default to avoid problems in some platforms)")
 IF (NOT HAVE_COMPLEX)
@@ -38,12 +20,12 @@ if(WITH_CUDA)
 	set(SUBPROJECTS_TO_ADD
 		${SUBPROJECTS_TO_ADD}
 		SuiteSparse_GPURuntime
-		GPUQREngine	
+		GPUQREngine
 		)
 endif()
 
 set(SUBPROJECTS_TO_ADD
-    ${SUBPROJECTS_TO_ADD} 
+    ${SUBPROJECTS_TO_ADD}
 	SuiteSparse_config
 	AMD
 	BTF
diff --git a/cmake/SuiteSparse-config-install.cmake.in b/cmake/SuiteSparse-config-install.cmake.in
index 1e587d1..fd8f3a7 100644
--- a/cmake/SuiteSparse-config-install.cmake.in
+++ b/cmake/SuiteSparse-config-install.cmake.in
@@ -2,20 +2,14 @@
 get_filename_component(_SuiteSparse_SELF_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
 get_filename_component(_SuiteSparse_PREFIX "${_SuiteSparse_SELF_DIR}" PATH)
 get_filename_component(_SuiteSparse_PREFIX "${_SuiteSparse_PREFIX}" PATH)
-get_filename_component(_SuiteSparse_PREFIX "${_SuiteSparse_PREFIX}" PATH)
 
 include(CMakeFindDependencyMacro)
-if (@SuiteSparse_LAPACK_used_CONFIG@) # SuiteSparse_LAPACK_used_CONFIG
-  # use config file which provides LAPACK (and BLAS) for us
-  find_dependency(LAPACK CONFIG)
-else()
-  # try to find BLAS and LAPACK with modules
   find_dependency(BLAS)
   find_dependency(LAPACK)
-endif ()
+  @SuiteSparse_FIND_DEPENDENCY_METIS@
 
 # Load targets from the install tree.
-include(${_SuiteSparse_SELF_DIR}/SuiteSparse-targets.cmake)
+include(${_SuiteSparse_SELF_DIR}/suitesparse-targets.cmake)
 
 # Report SuiteSparse header search locations.
 set(SuiteSparse_INCLUDE_DIRS ${_SuiteSparse_PREFIX}/include)
@@ -39,3 +33,7 @@ set(SuiteSparse_LIBRARIES
 
 unset(_SuiteSparse_PREFIX)
 unset(_SuiteSparse_SELF_DIR)
+set(SUITESPARSE_FOUND TRUE)
+set(SuiteSparse_FOUND TRUE)
+set(SUITESPARSE_LIBRARIES ${SuiteSparse_LIBRARIES})
+set(SUITESPARSE_INCLUDE_DIRS ${SuiteSparse_INCLUDE_DIRS})