remove functions for converting between isl and PolyLib

These functions could be seen as being derived work from PolyLib
and would therefore infect the whole library with the GPLv2 license.
They will be moved into a separate isl-polylib library.

1 files changed, 30 insertions, 48 deletions

diff --git a/doc/user.pod b/doc/user.pod
index 116320c7..8a887ab9 100644
--- a/doc/user.pod
+++ b/doc/user.pod
@@ -91,17 +91,15 @@ A complete list of options can be obtained by running
 
 Below we discuss some of the more common options.
 
-C<isl> can optionally use both C<PolyLib> and C<piplib>.
-C<PolyLib> is mainly used to convert between C<PolyLib> objects
-and C<isl> objects.  No C<piplib> functionality is currently
-used by default.
-The C<--with-polylib> and C<--with-piplib> options can
-be used to specify which C<PolyLib> or C<piplib>
+C<isl> can optionally use C<piplib>, but no
+C<piplib> functionality is currently used by default.
+The C<--with-piplib> option can
+be used to specify which C<piplib>
 library to use, either an installed version (C<system>),
 an externally built version (C<build>), a bundled version (C<bundled>)
 or no version (C<no>).  The option C<build> is mostly useful
 in C<configure> scripts of larger projects that bundle both C<isl>
-and either C<PolyLib> or C<piplib>.
+and C<piplib>.
 
 =over
 
@@ -117,22 +115,6 @@ Installation prefix for C<GMP> (architecture-independent files).
 
 Installation prefix for C<GMP> (architecture-dependent files).
 
-=item C<--with-polylib>
-
-Which copy of C<PolyLib> to use, either C<no> (default), C<system> or C<build>.
-
-=item C<--with-polylib-prefix>
-
-Installation prefix for C<system> C<PolyLib> (architecture-independent files).
-
-=item C<--with-polylib-exec-prefix>
-
-Installation prefix for C<system> C<PolyLib> (architecture-dependent files).
-
-=item C<--with-polylib-builddir>
-
-Location where C<build> C<PolyLib> was built.
-
 =item C<--with-piplib>
 
 Which copy of C<piplib> to use, either C<no> (default), C<system>, C<build>
@@ -389,8 +371,7 @@ C<isl_dim_out> (only for relations), C<isl_dim_set>
 
 Proper input and output functions are still in development.
 However, some functions are provided to read and write
-to foreign file formats and to convert between
-C<isl> objects and C<PolyLib> objects (if C<PolyLib> is available).
+to foreign file formats.
 
 =head3 Input
 
@@ -439,29 +420,6 @@ The coefficients of the existentially quantified variables
 appear between those of the set variables and those
 of the parameters.
 
-=head3 Conversion from/to C<PolyLib>
-
-The following functions are only available if C<isl> has
-been configured to use C<PolyLib>.
-
-	#include <isl_set_polylib.h>
-	__isl_give isl_basic_set *isl_basic_set_new_from_polylib(
-		Polyhedron *P, __isl_take isl_dim *dim);
-	Polyhedron *isl_basic_set_to_polylib(
-		__isl_keep isl_basic_set *bset);
-	__isl_give isl_set *isl_set_new_from_polylib(Polyhedron *D,
-		__isl_take isl_dim *dim);
-	Polyhedron *isl_set_to_polylib(__isl_keep isl_set *set);
-
-	#include <isl_map_polylib.h>
-	__isl_give isl_basic_map *isl_basic_map_new_from_polylib(
-		Polyhedron *P, __isl_take isl_dim *dim);
-	__isl_give isl_map *isl_map_new_from_polylib(Polyhedron *D,
-		__isl_take isl_dim *dim);
-	Polyhedron *isl_basic_map_to_polylib(
-		__isl_keep isl_basic_map *bmap);
-	Polyhedron *isl_map_to_polylib(__isl_keep isl_map *map);
-
 =head3 Dumping the internal state
 
 For lack of proper output functions, the following functions
@@ -941,3 +899,27 @@ is given, then the constant should appear in the last column.
 
 Given a polytope in C<PolyLib> format, C<isl_polytope_scan> prints
 all integer points in the polytope.
+
+=head1 C<isl-polylib>
+
+The C<isl-polylib> library provides the following functions for converting
+between C<isl> objects and C<PolyLib> objects.
+The library is distributed separately for licensing reasons.
+
+	#include <isl_set_polylib.h>
+	__isl_give isl_basic_set *isl_basic_set_new_from_polylib(
+		Polyhedron *P, __isl_take isl_dim *dim);
+	Polyhedron *isl_basic_set_to_polylib(
+		__isl_keep isl_basic_set *bset);
+	__isl_give isl_set *isl_set_new_from_polylib(Polyhedron *D,
+		__isl_take isl_dim *dim);
+	Polyhedron *isl_set_to_polylib(__isl_keep isl_set *set);
+
+	#include <isl_map_polylib.h>
+	__isl_give isl_basic_map *isl_basic_map_new_from_polylib(
+		Polyhedron *P, __isl_take isl_dim *dim);
+	__isl_give isl_map *isl_map_new_from_polylib(Polyhedron *D,
+		__isl_take isl_dim *dim);
+	Polyhedron *isl_basic_map_to_polylib(
+		__isl_keep isl_basic_map *bmap);
+	Polyhedron *isl_map_to_polylib(__isl_keep isl_map *map);