vcpkg/ports/ceres/find-package-required.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2d241fe..b79454d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -244,7 +244,7 @@ else (CUDA)
 endif (CUDA)
 
 if (LAPACK)
-  find_package(LAPACK QUIET)
+  find_package(LAPACK REQUIRED)
   if (LAPACK_FOUND)
     message("-- Found LAPACK library: ${LAPACK_LIBRARIES}")
   else (LAPACK_FOUND)
@@ -266,7 +266,8 @@ if (SUITESPARSE)
   # built with SuiteSparse support.
 
   # Check for SuiteSparse and dependencies.
-  find_package(SuiteSparse 4.0 COMPONENTS CHOLMOD SPQR)
+  find_package(suitesparse CONFIG REQUIRED)
+  set(SuiteSparse_FOUND 1)
   if (SuiteSparse_FOUND)
     set(SuiteSparse_DEPENDENCY "find_dependency(SuiteSparse ${SuiteSparse_VERSION})")
     # By default, if all of SuiteSparse's dependencies are found, Ceres is
@@ -274,11 +275,11 @@ if (SUITESPARSE)
     message("-- Found SuiteSparse ${SuiteSparse_VERSION}, "
             "building with SuiteSparse.")
 
-    if (SuiteSparse_NO_CMAKE OR NOT SuiteSparse_DIR)
+    if (0)
       install(FILES ${Ceres_SOURCE_DIR}/cmake/FindSuiteSparse.cmake
                     ${Ceres_SOURCE_DIR}/cmake/FindMETIS.cmake
               DESTINATION ${RELATIVE_CMAKECONFIG_INSTALL_DIR})
-    endif (SuiteSparse_NO_CMAKE OR NOT SuiteSparse_DIR)
+    endif ()
   else (SuiteSparse_FOUND)
     # Disable use of SuiteSparse if it cannot be found and continue.
     message("-- Did not find all SuiteSparse dependencies, disabling "
@@ -294,7 +295,7 @@ endif (SUITESPARSE)
 # CXSparse.
 if (CXSPARSE)
   # Don't search with REQUIRED as we can continue without CXSparse.
-  find_package(CXSparse)
+  find_package(CXSparse REQUIRED)
   if (CXSparse_FOUND)
     set(CXSparse_DEPENDENCY "find_dependency(CXSparse ${CXSparse_VERSION})")
     # By default, if CXSparse and all dependencies are found, Ceres is
@@ -302,10 +303,10 @@ if (CXSPARSE)
     message("-- Found CXSparse version: ${CXSparse_VERSION}, "
       "building with CXSparse.")
 
-    if (CXSparse_NO_CMAKE OR NOT CXSparse_DIR)
+    if (0)
       install(FILES ${Ceres_SOURCE_DIR}/cmake/FindCXSparse.cmake
               DESTINATION ${RELATIVE_CMAKECONFIG_INSTALL_DIR})
-    endif (CXSparse_NO_CMAKE OR NOT CXSparse_DIR)
+    endif ()
   else (CXSparse_FOUND)
     # Disable use of CXSparse if it cannot be found and continue.
     message("-- Did not find CXSparse, Building without CXSparse.")
@@ -367,9 +368,10 @@ endif()
 # GFlags.
 if (GFLAGS)
   # Don't search with REQUIRED as we can continue without gflags.
-  find_package(gflags 2.2.0)
+  find_package(gflags CONFIG REQUIRED)
   if (gflags_FOUND)
-    if (TARGET gflags)
+    if (TARGET gflags::gflags)
+      add_library(gflags ALIAS gflags::gflags)
       message("-- Found Google Flags (gflags) version ${gflags_VERSION}: ${gflags_DIR}")
     else()
       message("-- Detected version of gflags: ${gflags_VERSION} does not define "
@@ -420,7 +422,7 @@ set_ceres_threading_model("${CERES_THREADING_MODEL}")
 
 if (BUILD_BENCHMARKS)
   # Version 1.3 was first to provide import targets
-  find_package(benchmark 1.3 QUIET)
+  find_package(benchmark CONFIG REQUIRED)
   if (benchmark_FOUND)
      message("-- Found Google benchmark library. Building Ceres benchmarks.")
   else()
@@ -611,7 +613,7 @@ create_ceres_config("${CERES_COMPILE_OPTIONS}"
 add_subdirectory(internal/ceres)
 
 if (BUILD_DOCUMENTATION)
-  find_package(Sphinx)
+  find_package(Sphinx REQUIRED)
   if (NOT SPHINX_FOUND)
     message("-- Failed to find Sphinx and/or its dependencies, disabling build of documentation.")
     update_cache_variable(BUILD_DOCUMENTATION OFF)
diff --git a/internal/ceres/CMakeLists.txt b/internal/ceres/CMakeLists.txt
index 299b373..33d41d8 100644
--- a/internal/ceres/CMakeLists.txt
+++ b/internal/ceres/CMakeLists.txt
@@ -108,14 +108,14 @@ endif (NOT MINIGLOG)
 if (SUITESPARSE AND SuiteSparse_FOUND)
   # Define version information for use in Solver::FullReport.
   add_definitions(-DCERES_SUITESPARSE_VERSION="${SuiteSparse_VERSION}")
-  list(APPEND CERES_LIBRARY_PRIVATE_DEPENDENCIES SuiteSparse::CHOLMOD
-    SuiteSparse::SPQR)
+  list(APPEND CERES_LIBRARY_PRIVATE_DEPENDENCIES SuiteSparse::cholmod
+    SuiteSparse::spqr)
 endif (SUITESPARSE AND SuiteSparse_FOUND)
 
 if (CXSPARSE AND CXSparse_FOUND)
   # Define version information for use in Solver::FullReport.
   add_definitions(-DCERES_CXSPARSE_VERSION="${CXSparse_VERSION}")
-  list(APPEND CERES_LIBRARY_PRIVATE_DEPENDENCIES CXSparse::CXSparse)
+  list(APPEND CERES_LIBRARY_PRIVATE_DEPENDENCIES ${CXSparse_LIBRARIES})
 endif (CXSPARSE AND CXSparse_FOUND)
 
 if (ACCELERATESPARSE AND AccelerateSparse_FOUND)