Index: liboctave/SparseCmplxQR.h
===================================================================
RCS file: /cvs/octave/liboctave/SparseCmplxQR.h,v
retrieving revision 1.2
diff -u -r1.2 SparseCmplxQR.h
--- liboctave/SparseCmplxQR.h   8 Mar 2006 20:17:38 -0000       1.2
+++ liboctave/SparseCmplxQR.h   23 Mar 2006 17:56:07 -0000
@@ -137,6 +137,23 @@
 #endif
 };

+
+// Publish externally used friend functions.
+
+extern ComplexMatrix qrsolve (const SparseComplexMatrix &a, const Matrix &b,
+                             octave_idx_type &info);
+
+extern SparseComplexMatrix qrsolve (const SparseComplexMatrix &a,
+                                   const SparseMatrix &b,
+                                   octave_idx_type &info);
+
+extern ComplexMatrix qrsolve (const SparseComplexMatrix &a,
+                             const ComplexMatrix &b,
+                             octave_idx_type &info);
+
+extern SparseComplexMatrix qrsolve (const SparseComplexMatrix &a,
+                                   const SparseComplexMatrix &b,
+                                   octave_idx_type &info);
 #endif

 /*
Index: liboctave/SparseQR.h
===================================================================
RCS file: /cvs/octave/liboctave/SparseQR.h,v
retrieving revision 1.2
diff -u -r1.2 SparseQR.h
--- liboctave/SparseQR.h        8 Mar 2006 20:17:38 -0000       1.2
+++ liboctave/SparseQR.h        23 Mar 2006 17:56:07 -0000
@@ -133,6 +133,22 @@
 #endif
 };

+
+// Publish externally used friend functions.
+
+extern Matrix qrsolve (const SparseMatrix &a, const Matrix &b,
+                      octave_idx_type &info);
+
+extern SparseMatrix qrsolve (const SparseMatrix &a, const SparseMatrix &b,
+                            octave_idx_type &info);
+
+extern ComplexMatrix qrsolve (const SparseMatrix &a, const ComplexMatrix &b,
+                             octave_idx_type &info);
+
+extern SparseComplexMatrix qrsolve (const SparseMatrix &a,
+                                   const SparseComplexMatrix &b,
+                                   octave_idx_type &info);
+
 #endif

 /*
Index: liboctave/CSparse.cc
===================================================================
RCS file: /cvs/octave/liboctave/CSparse.cc,v
retrieving revision 1.22
diff -u -r1.22 CSparse.cc
--- liboctave/CSparse.cc        22 Mar 2006 22:58:12 -0000      1.22
+++ liboctave/CSparse.cc        24 Mar 2006 14:23:38 -0000
@@ -4273,7 +4273,7 @@
          // Calculate the norm of the matrix, for later use.
          double anorm;
          if (calc_cond)
-           anorm = m_band.abs().sum().row(0).max();
+           anorm = m_band.abs().sum().row(static_cast<octave_idx_type>(0)).max();

          char job = 'L';
          F77_XFCN (zpbtrf, ZPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
@@ -4548,7 +4548,7 @@
          // Calculate the norm of the matrix, for later use.
          double anorm;
          if (calc_cond)
-           anorm = m_band.abs().sum().row(0).max();
+           anorm = m_band.abs().sum().row(static_cast<octave_idx_type>(0)).max();

          char job = 'L';
          F77_XFCN (zpbtrf, ZPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
@@ -4899,7 +4899,7 @@
          // Calculate the norm of the matrix, for later use.
          double anorm;
          if (calc_cond)
-           anorm = m_band.abs().sum().row(0).max();
+           anorm = m_band.abs().sum().row(static_cast<octave_idx_type>(0)).max();

          char job = 'L';
          F77_XFCN (zpbtrf, ZPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
@@ -5176,7 +5176,7 @@
          // Calculate the norm of the matrix, for later use.
          double anorm;
          if (calc_cond)
-           anorm = m_band.abs().sum().row(0).max();
+           anorm = m_band.abs().sum().row(static_cast<octave_idx_type>(0)).max();

          char job = 'L';
          F77_XFCN (zpbtrf, ZPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
Index: liboctave/dSparse.cc
===================================================================
RCS file: /cvs/octave/liboctave/dSparse.cc,v
retrieving revision 1.21
diff -u -r1.21 dSparse.cc
--- liboctave/dSparse.cc        22 Mar 2006 22:58:12 -0000      1.21
+++ liboctave/dSparse.cc        24 Mar 2006 14:23:39 -0000
@@ -4376,7 +4376,7 @@
          // Calculate the norm of the matrix, for later use.
          double anorm;
          if (calc_cond)
-           anorm = m_band.abs().sum().row(0).max();
+           anorm = m_band.abs().sum().row(static_cast<octave_idx_type>(0)).max();

          char job = 'L';
          F77_XFCN (dpbtrf, DPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
@@ -4652,7 +4652,7 @@
          // Calculate the norm of the matrix, for later use.
          double anorm;
          if (calc_cond)
-           anorm = m_band.abs().sum().row(0).max();
+           anorm = m_band.abs().sum().row(static_cast<octave_idx_type>(0)).max();

          char job = 'L';
          F77_XFCN (dpbtrf, DPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
@@ -5003,7 +5003,7 @@
          // Calculate the norm of the matrix, for later use.
          double anorm;
          if (calc_cond)
-           anorm = m_band.abs().sum().row(0).max();
+           anorm = m_band.abs().sum().row(static_cast<octave_idx_type>(0)).max();

          char job = 'L';
          F77_XFCN (dpbtrf, DPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),
@@ -5350,7 +5350,7 @@
          // Calculate the norm of the matrix, for later use.
          double anorm;
          if (calc_cond)
-           anorm = m_band.abs().sum().row(0).max();
+           anorm = m_band.abs().sum().row(static_cast<octave_idx_type>(0)).max();

          char job = 'L';
          F77_XFCN (dpbtrf, DPBTRF, (F77_CONST_CHAR_ARG2 (&job, 1),