From 810fc1cf58a0b4188304fdcf149c66325151ed2f Mon Sep 17 00:00:00 2001
From: Sylvain Pion <Sylvain.Pion@sophia.inria.fr>
Date: Fri, 24 Feb 2006 14:32:40 +0000
Subject: [PATCH] Protect some code with CGAL_USE_GMP and similar

---
 Number_types/include/CGAL/number_type_basic.h | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/Number_types/include/CGAL/number_type_basic.h b/Number_types/include/CGAL/number_type_basic.h
index 88bbf4af952..f05173c467c 100644
--- a/Number_types/include/CGAL/number_type_basic.h
+++ b/Number_types/include/CGAL/number_type_basic.h
@@ -64,9 +64,15 @@ CGAL_END_NAMESPACE
 #include <CGAL/Filtered_exact_fwd.h>
 #include <CGAL/MP_Float_fwd.h>
 #include <CGAL/Number_type_checker_fwd.h>
-#include <CGAL/Gmpzq_fwd.h>
-#include <CGAL/gmpxx_fwd.h>
-#include <CGAL/CORE_Expr_fwd.h>
+#ifdef CGAL_USE_GMP
+#  include <CGAL/Gmpzq_fwd.h>
+#endif
+#ifdef CGAL_USE_GMPXX
+#  include <CGAL/gmpxx_fwd.h>
+#endif
+#ifdef CGAL_USE_CORE
+#  include <CGAL/CORE_Expr_fwd.h>
+#endif
 #include <CGAL/Quotient_fwd.h>
 #include <CGAL/Root_of_2_fwd.h>
 
@@ -75,7 +81,9 @@ CGAL_END_NAMESPACE
 // instantiation, even if only to_double(double) is called, at least
 // when Quotient is defined...
 #include <CGAL/MP_Float.h>
-#include <CGAL/Gmpz.h>
+#ifdef CGAL_USE_GMP
+#  include <CGAL/Gmpz.h>
+#endif
 
 CGAL_BEGIN_NAMESPACE