resolves #45 (comment)

and bump version to v2024.09-02

PackageInfo.g

@@ -10,7 +10,7 @@ SetPackageInfo( rec(
 
 PackageName := "CddInterface",
 Subtitle := "Gap interface to Cdd package",
-Version := "2024.09.01",
+Version := "2024.09.02",
 Date := ~.Version{[ 1 .. 10 ]},
 Date := Concatenation( ~.Date{[ 9, 10 ]}, "/", ~.Date{[ 6, 7 ]}, "/", ~.Date{[ 1 .. 4 ]} ),
 License := "GPL-2.0-or-later",

configure.ac

@@ -62,7 +62,8 @@ old_CPPFLAGS="$CPPFLAGS"
 old_LDFLAGS="$LDFLAGS"
 CPPFLAGS="$CPPFLAGS $CDD_CPPFLAGS"
 LDFLAGS="$LDFLAGS $CDD_LDFLAGS"
-AC_CHECK_HEADER([setoper.h], [], [AC_MSG_ERROR([could not use setoper.h])], [])
+AC_CHECK_HEADER([cddlib/setoper.h], [AC_DEFINE([HAVE_CDDLIB_SETOPER_H], [1], [setting HAVE_CDDLIB_SETOPER_H=1])],
+  [AC_CHECK_HEADER([setoper.h], [], [AC_MSG_ERROR([could not find setoper.h])])])
 AC_CHECK_LIB([cddgmp],[dd_SetLinearity])
 CPPFLAGS="$old_CPPFLAGS"
 LDFLAGS="$old_LDFLAGS"

src/CddInterface.c

@@ -4,7 +4,12 @@
 
 #include "compiled.h" // GAP headers
 
-#include "setoper.h"
+#ifdef HAVE_CDDLIB_SETOPER_H
+#include <cddlib/setoper.h>
+#else
+#include <setoper.h>
+#endif
+
 #include "cdd.h"
 
 #include "gmp.h"