[gnumeric] Solvers: fix reversed condition.

[Morten Welinder <mortenw src gnome org>]

commit cf7f5771cb1231e11d4c44f010c68d387fcc2514
Author: Morten Welinder <terra gnome org>
Date:   Sun Jul 8 18:25:40 2012 -0400

    Solvers: fix reversed condition.
    
    We didn't do cross-sheet target cells right.

 NEWS                          |    1 +
 plugins/glpk/ChangeLog        |    5 +++++
 plugins/glpk/gnm-glpk.c       |    2 +-
 plugins/lpsolve/ChangeLog     |    5 +++++
 plugins/lpsolve/gnm-lpsolve.c |    2 +-
 5 files changed, 13 insertions(+), 2 deletions(-)
---
diff --git a/NEWS b/NEWS
index 20b0dc0..b2b3fec 100644
--- a/NEWS
+++ b/NEWS
@@ -5,6 +5,7 @@ Morten:
 	* Teach non-linear solver about constraints.  [Part of #620368]
 	* Avoid too many hash collissions for dense sheets.
 	* Speed up operations that iterate over cells in large areas.
+	* Fix problems with linear solvers and cross-sheet target.
 
 --------------------------------------------------------------------------
 Gnumeric 1.11.4
diff --git a/plugins/glpk/ChangeLog b/plugins/glpk/ChangeLog
index 0245d2c..418c467 100644
--- a/plugins/glpk/ChangeLog
+++ b/plugins/glpk/ChangeLog
@@ -1,3 +1,8 @@
+2012-07-08  Morten Welinder  <terra gnome org>
+
+	* gnm-glpk.c (glpk_solver_factory): Fix reversed condition
+	re. cross-sheet target.
+
 2012-06-25  Morten Welinder <terra gnome org>
 
 	* Release 1.11.4
diff --git a/plugins/glpk/gnm-glpk.c b/plugins/glpk/gnm-glpk.c
index 0e653d4..0fa13d1 100644
--- a/plugins/glpk/gnm-glpk.c
+++ b/plugins/glpk/gnm-glpk.c
@@ -362,7 +362,7 @@ glpk_solver_factory (GnmSolverFactory *factory, GnmSolverParameters *params)
 	lp->parent = GNM_SUB_SOLVER (res);
 	gnm_sheet_range_from_value (&lp->srinput,
 				    gnm_solver_param_get_input (params));
-	if (lp->srinput.sheet) lp->srinput.sheet = params->sheet;
+	if (!lp->srinput.sheet) lp->srinput.sheet = params->sheet;
 
 	g_signal_connect (res, "prepare", G_CALLBACK (gnm_glpk_prepare), lp);
 	g_signal_connect (res, "start", G_CALLBACK (gnm_glpk_start), lp);
diff --git a/plugins/lpsolve/ChangeLog b/plugins/lpsolve/ChangeLog
index d415352..6a76ad8 100644
--- a/plugins/lpsolve/ChangeLog
+++ b/plugins/lpsolve/ChangeLog
@@ -1,3 +1,8 @@
+2012-07-08  Morten Welinder  <terra gnome org>
+
+	* gnm-lpsolve.c (lpsolve_solver_factory): Fix reversed condition
+	re. cross-sheet target.
+
 2012-06-25  Morten Welinder <terra gnome org>
 
 	* Release 1.11.4
diff --git a/plugins/lpsolve/gnm-lpsolve.c b/plugins/lpsolve/gnm-lpsolve.c
index d8cc59b..4e9150e 100644
--- a/plugins/lpsolve/gnm-lpsolve.c
+++ b/plugins/lpsolve/gnm-lpsolve.c
@@ -356,7 +356,7 @@ lpsolve_solver_factory (GnmSolverFactory *factory, GnmSolverParameters *params)
 	lp->parent = GNM_SUB_SOLVER (res);
 	gnm_sheet_range_from_value (&lp->srinput,
 				    gnm_solver_param_get_input (params));
-	if (lp->srinput.sheet) lp->srinput.sheet = params->sheet;
+	if (!lp->srinput.sheet) lp->srinput.sheet = params->sheet;
 
 	g_signal_connect (res, "prepare", G_CALLBACK (gnm_lpsolve_prepare), lp);
 	g_signal_connect (res, "start", G_CALLBACK (gnm_lpsolve_start), lp);