--- cmake/FindABC.cmake.orig	2019-04-09 10:14:31.000000000 -0600
+++ cmake/FindABC.cmake	2019-04-16 16:01:44.519958231 -0600
@@ -2,7 +2,6 @@
 # ABC_FOUND - system has ABC lib
 # ABC_INCLUDE_DIR - the ABC include directory
 # ABC_LIBRARIES - Libraries needed to use ABC
-# ABC_ARCH_FLAGS - Platform specific compile flags
 
 
 # Check default location of ABC built with contrib/get-abc.
@@ -14,28 +13,19 @@ endif()
 # install rule.
 find_path(ABC_INCLUDE_DIR
           NAMES base/abc/abc.h
-          PATHS ${ABC_HOME}/src
+          PATHS /usr/include/abc
           NO_DEFAULT_PATH)
 find_library(ABC_LIBRARIES
              NAMES abc
-             PATHS ${ABC_HOME}
-             NO_DEFAULT_PATH)
-find_program(ABC_ARCH_FLAGS_PROG
-             NAMES arch_flags
-             PATHS ${ABC_HOME}
+             PATHS /usr/lib64 /usr/lib
              NO_DEFAULT_PATH)
 
-if(ABC_ARCH_FLAGS_PROG)
-  execute_process(COMMAND ${ABC_ARCH_FLAGS_PROG}
-                  OUTPUT_VARIABLE ABC_ARCH_FLAGS)
-endif()
-
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(ABC
   DEFAULT_MSG
-  ABC_INCLUDE_DIR ABC_LIBRARIES ABC_ARCH_FLAGS)
+  ABC_INCLUDE_DIR ABC_LIBRARIES)
 
-mark_as_advanced(ABC_INCLUDE_DIR ABC_LIBRARIES ABC_ARCH_FLAGS)
+mark_as_advanced(ABC_INCLUDE_DIR ABC_LIBRARIES)
 if(ABC_LIBRARIES)
   message(STATUS "Found ABC libs: ${ABC_LIBRARIES}")
 endif()
--- CMakeLists.txt.orig	2019-04-09 10:14:31.000000000 -0600
+++ CMakeLists.txt	2019-04-16 15:54:30.334111544 -0600
@@ -379,7 +379,7 @@ endif()
 if(USE_ABC)
   set(ABC_HOME "${ABC_DIR}")
   find_package(ABC REQUIRED)
-  add_definitions(-DCVC4_USE_ABC ${ABC_ARCH_FLAGS})
+  add_definitions(-DCVC4_USE_ABC)
 endif()
 
 if(USE_CADICAL)