$NetBSD$

1.
gcc -I.  -I/usr/pkg/include -I/usr/include -c colamd.c -o colamd.o
colamd.c:639:10: fatal error: colamd.h: No such file or directory
  639 | #include "colamd.h"
      |          ^~~~~~~~~~
compilation terminated.
*** Error code 1

Stop.
make[2]: stopped in /tmp/math/R-Matrix/work/Matrix/src/COLAMD/Source
*** Error code 1


2.

gcc -I../Include  -I/usr/pkg/include -I/usr/include -c colamd.c -o colamd.o
In file included from colamd.c:639:
../Include/colamd.h:130:10: fatal error: SuiteSparse_config.h: No such file or directory
  130 | #include "SuiteSparse_config.h"
      |          ^~~~~~~~~~~~~~~~~~~~~~

--- src/COLAMD/Source/Makefile.orig	2023-07-03 22:28:32.000000000 +0900
+++ src/COLAMD/Source/Makefile	2023-08-12 06:48:34.881403633 +0900
@@ -1,5 +1,7 @@
 PKG_CPPFLAGS = -I../Include -I../../SuiteSparse_config
 
+CFLAGS=	-I../Include -I../../SuiteSparse_config
+ALL_CFLAGS=	-I../Include -I../../SuiteSparse_config
 LIB = ../../COLAMD.a
 
 lib: $(LIB)