Modifid cmake

Author: rjc8237

CMakeLists.txt

@@ -36,6 +36,7 @@ if(USE_MULTIPRECISION)
   # Turning this on activates mpfr in the conformal code
   option(LIBIGL_COPYLEFT_CGAL "Use CGAL" ON)
   add_compile_definitions(WITH_MPFR)
+  find_package(MPFR REQUIRED QUIET)
   include_directories(${MPFR_INCLUDE_DIR})
   include_directories(${GMP_INCLUDE_DIR})
   link_directories(${MPFR_LIBRARIES_DIR})

cmake/FindMPFR.cmake

@@ -0,0 +1,52 @@
+# Try to find the MPFR libraries
+# MPFR_FOUND - system has MPFR lib
+# MPFR_INCLUDE_DIR - the MPFR include directory
+# MPFR_LIBRARIES_DIR - Directory where the MPFR libraries are located
+# MPFR_LIBRARIES - the MPFR libraries
+
+INCLUDE(FindPackageHandleStandardArgs)
+
+# GMP is also needed, prerequisite
+find_path(GMP_INCLUDE_DIR
+          NAMES gmp.h
+          HINTS ENV GMP_INC_DIR
+                ENV GMP_DIR
+                ENV GMP_INC
+          PATH_SUFFIXES include
+          DOC "The directory containing the GMP header files"
+)
+
+find_library(GMP_LIBRARIES NAMES gmp libgmp
+  HINTS ENV GMP_LIB_DIR
+        ENV GMP_DIR
+        ENV GMP_LIB
+  PATH_SUFFIXES lib
+  DOC "Path to the GMP library"
+)
+
+
+# find MPFR
+find_path(MPFR_INCLUDE_DIR
+          NAMES mpfr.h
+          HINTS ENV MPFR_INC_DIR
+                ENV MPFR_DIR
+                ENV MPFR_INC
+          PATH_SUFFIXES include
+          DOC "The directory containing the MPFR header files"
+)
+
+find_library(MPFR_LIBRARIES NAMES mpfr libmpfr-4 libmpfr-1
+  HINTS ENV MPFR_LIB_DIR
+        ENV MPFR_DIR
+        ENV MPFR_LIB
+  PATH_SUFFIXES lib
+  DOC "Path to the MPFR library"
+)
+
+if ( MPFR_LIBRARIES AND GMP_LIBRARIES )
+  get_filename_component(MPFR_LIBRARIES_DIR ${MPFR_LIBRARIES} PATH CACHE )
+  get_filename_component(GMP_LIBRARIES_DIR ${GMP_LIBRARIES} PATH CACHE )
+endif()
+
+find_package_handle_standard_args(MPFR "DEFAULT_MSG" MPFR_LIBRARIES MPFR_INCLUDE_DIR)
+find_package_handle_standard_args(GMP "DEFAULT_MSG" GMP_LIBRARIES GMP_INCLUDE_DIR)

cmake/eigen.cmake

@@ -24,6 +24,7 @@ else()
     include(FetchContent)
     FetchContent_Declare(
         eigen
+        SYSTEM
         GIT_REPOSITORY https://gitlab.com/libeigen/eigen.git
         GIT_TAG 3.4.0
         GIT_SHALLOW TRUE

src/optimization/CMakeLists.txt

@@ -33,6 +33,7 @@ target_link_libraries(MetricOptimizationLib PUBLIC
   pybind11::module
   ${MPFR_LIBRARIES}
 )
+message(MPRF libraries are ${MPFR_LIBRARIES})
 target_compile_definitions(MetricOptimizationLib PUBLIC
   SPDLOG_ACTIVE_LEVEL=SPDLOG_LEVEL_DEBUG
 )