allow meshfix to be built on both Ubuntu and Fedora, fix #39

Author: fangq

CMakeLists.txt

@@ -4,6 +4,7 @@ add_subdirectory(contrib/JMeshLib)
 include_directories(
     include
     /usr/include/superlu
+    /usr/include/SuperLU
     contrib/JMeshLib/include
     contrib/OpenNL3.2.1/src
     contrib/jrs_predicates

contrib/OpenNL3.2.1/src/nl_single_file.c

@@ -3436,8 +3436,8 @@ void nlPreconditioner_SSOR(NLdouble* x, NLdouble* y) {
 #ifdef NL_USE_SUPERLU
 
 /* SuperLU includes */
-#include <SuperLU/slu_cdefs.h>
-#include <SuperLU/supermatrix.h>
+#include <slu_cdefs.h>
+#include <supermatrix.h>
 
 /* Note: SuperLU is difficult to call, but it is worth it.    */
 /* Here is a driver inspired by A. Sheffer's "cow flattener". */