Adapt to changed eclib interface.

sagemath-cremona.patch

@@ -34,3 +34,53 @@ diff -up src/sage/databases/cremona.py.orig src/sage/databases/cremona.py
      if name == 'cremona':
          mini = False
      elif name == 'cremona mini':
+diff -up src/sage/libs/cremona/mat.pxd.orig src/sage/libs/cremona/mat.pxd
+--- src/sage/libs/cremona/mat.pxd.orig	2015-02-16 17:15:10.000000000 -0700
++++ src/sage/libs/cremona/mat.pxd	2015-07-26 07:34:43.000000000 -0600
+@@ -13,11 +13,13 @@ cdef extern from "eclib/homspace.h":
+     ctypedef struct mat "mat":
+         scalar* get_entries()   # TODO: possibly not int --
+         scalar sub(long,long)
++        # These became methods from eclib-20150228:
++        long nrows()
++        long ncols()
++        long rank()
+ 
+-    long nrows(mat M)
+-    long ncols(mat M)
+     mat addscalar(mat M, scalar)
+-    long rank(mat M)
++
+ 
+     # Constructors
+     mat *new_mat "new mat" (mat m)
+diff -up src/sage/libs/cremona/mat.pyx.orig src/sage/libs/cremona/mat.pyx
+--- src/sage/libs/cremona/mat.pyx.orig	2015-02-16 17:15:10.000000000 -0700
++++ src/sage/libs/cremona/mat.pyx	2015-09-25 15:16:01.212387267 -0600
+@@ -98,7 +98,7 @@ cdef class Matrix:
+         cdef long i, j
+         if self.M:
+             i, j = ij
+-            if 0<i and i<=nrows(self.M[0]) and 0<j and j<=ncols(self.M[0]):
++            if 0<i and i<=self.M[0].nrows() and 0<j and j<=self.M[0].ncols():
+                 return self.M.sub(i,j)
+             raise IndexError, "matrix indices out of range"
+         raise IndexError, "cannot index into an undefined matrix"
+@@ -115,7 +115,7 @@ cdef class Matrix:
+             sage: t.nrows()
+             2
+         """
+-        return nrows(self.M[0])
++        return self.M[0].nrows()
+ 
+     def ncols(self):
+         """
+@@ -129,7 +129,7 @@ cdef class Matrix:
+             sage: M.dimension()
+             156
+         """
+-        return ncols(self.M[0])
++        return self.M[0].ncols()
+ 
+     # Commented out since it gives very weird
+     # results when sign != 0.