diff --git a/CMakeLists.txt b/CMakeLists.txt
index cf91a7ab..1e509e44 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,6 +12,7 @@ set(lib_name ${PROJECT_NAME})
 include(GNUInstallDirs)
 
 # Handle user build options.
+option(OPENMP "Use OpenMP threading" OFF)
 option(ENABLE_DOCS "Enable generation of doxygen-based documentation." OFF)
 option(BUILD_SHARED_LIBS "Build shared libraries" OFF)
 option(FTP_TEST_FILES "Fetch and test with files on FTP site." OFF)
@@ -21,6 +22,7 @@ option(LOGGING "Turn on internal logging messages. Only useful to g2 developers.
 option(BUILD_4 "Build libg2_4.a" ON)
 option(BUILD_D "Build libg2_d.a" ON)
 option(BUILD_WITH_W3EMC "Build with NCEPLIBS-w3emc, enabling some GRIB1 functionality" ON)
+option(G2C_COMPARE "Enable copygb2 tests using g2c_compare" OFF)
 
 # Developers can use this option to specify a local directory which
 # holds the test files. They will be copied instead of fetching the
@@ -61,14 +63,24 @@ if(${CMAKE_Fortran_COMPILER_ID} MATCHES "^(GNU)$" AND ${CMAKE_Fortran_COMPILER_V
   set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fallow-argument-mismatch")
 endif()
 
+# Find openMP if we need it.
+if(OPENMP)
+  find_package(OpenMP REQUIRED COMPONENTS Fortran)
+endif()
+
 # There was a bug in jasper for the intel compiler that was fixed in
 # 2.0.25.
 find_package(Jasper 2.0.25 REQUIRED)
 find_package(PNG REQUIRED)
 find_package(bacio REQUIRED)
+find_package(ZLIB REQUIRED)
 if(bacio_VERSION LESS 2.5.0)
   add_library(bacio::bacio ALIAS bacio::bacio_4)
 endif()
+find_package(ip 3.3.3 REQUIRED)
+if(ip_VERSION LESS 5.0)
+  find_package(sp 2.3.3 REQUIRED)
+endif()
 
 # NCEPLIBS-w3emc may be required.
 if (BUILD_WITH_W3EMC)
diff --git a/src/utils/CMakeLists.txt b/src/utils/CMakeLists.txt
index 32446d9b..a0d1e77e 100644
--- a/src/utils/CMakeLists.txt
+++ b/src/utils/CMakeLists.txt
@@ -3,22 +3,13 @@
 #
 # George Gayno, Mark Potts, Alyson Stahl
 
-# Set the compiler flags.
-if(CMAKE_Fortran_COMPILER_ID MATCHES "^(Intel|IntelLLVM)$")
-  set(CMAKE_Fortran_FLAGS "-g -r8 -auto ${CMAKE_Fortran_FLAGS}")
-  set(CMAKE_Fortran_FLAGS_RELEASE "-O3 ${CMAKE_Fortran_FLAGS}")
-elseif(CMAKE_Fortran_COMPILER_ID MATCHES "^(GNU)$")
-  set(CMAKE_Fortran_FLAGS "-g -fdefault-real-8 ${CMAKE_Fortran_FLAGS}")
-  set(CMAKE_Fortran_FLAGS_RELEASE "-O3 ${CMAKE_Fortran_FLAGS}")
-endif()
-
 # This is the fortran source code.
 set(fortran_src copygb.F90)
 
 # Build the executable.
 set(exe_name copygb)
 add_executable(${exe_name} ${fortran_src})
-target_link_libraries(${exe_name} PRIVATE bacio::${bacio_name} w3emc::w3emc_d ip::ip_d)
+target_link_libraries(${exe_name} PRIVATE bacio::bacio w3emc::w3emc_d ip::ip_d)
 if(ip_VERSION LESS 5.0)
   target_link_libraries(${exe_name} PRIVATE sp::sp_d)
 endif()