Missed before: Frank's typedef fix actually needs another include on Linux

gtsam/3rdparty/CCOLAMD/Source/ccolamd.c

@@ -621,6 +621,7 @@
 #include <limits.h>
 
 #ifdef MATLAB_MEX_FILE
+#include <stdint.h>
 typedef uint16_t char16_t;
 #include "mex.h"
 #include "matrix.h"

gtsam/3rdparty/CCOLAMD/Source/ccolamd_global.c

@@ -14,6 +14,7 @@
 #ifndef NPRINT
 #ifdef MATLAB_MEX_FILE
 #include <stdlib.h>
+#include <stdint.h>
 typedef uint16_t char16_t;
 #include "mex.h"
 int (*ccolamd_printf) (const char *, ...) = mexPrintf ;