diff -up polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularRingManager.h.singular polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularRingManager.h
--- polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularRingManager.h.singular	2015-08-26 09:16:29.000000000 -0400
+++ polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularRingManager.h	2015-08-26 09:24:26.264678078 -0400
@@ -22,7 +22,7 @@
 #include "polymake/client.h"
 #include "polymake/Map.h"
 
-#include <Singular/libsingular.h>
+#include <libsingular.h>
 #include "polymake/ideal/internal/singularTermOrderData.h"
 #include "polymake/ideal/internal/singularTermOrderMap.h"
 #include "polymake/ideal/internal/singularConvertTypes.h"
diff -up polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularTermOrderData.h.singular polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularTermOrderData.h
--- polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularTermOrderData.h.singular	2015-08-26 09:16:29.000000000 -0400
+++ polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularTermOrderData.h	2015-08-26 09:24:26.264678078 -0400
@@ -21,7 +21,7 @@
 #include "polymake/Ring.h"
 #include "polymake/Polynomial.h"
 
-#include "Singular/libsingular.h"
+#include <libsingular.h>
 
 namespace polymake { 
 namespace ideal {
diff -up polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularTermOrderMap.h.singular polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularTermOrderMap.h
--- polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularTermOrderMap.h.singular	2015-08-26 09:16:29.000000000 -0400
+++ polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularTermOrderMap.h	2015-08-26 09:24:26.264678078 -0400
@@ -20,7 +20,7 @@
 #include "polymake/Map.h"
 #include "polymake/ideal/internal/singularTermOrderData.h"
 
-#include <Singular/libsingular.h>
+#include <libsingular.h>
 
 namespace polymake { 
 namespace ideal {
diff -up polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularUtils.h.singular polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularUtils.h
--- polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularUtils.h.singular	2015-08-26 09:16:29.000000000 -0400
+++ polymake-2.15-beta2/bundled/singular/apps/ideal/include/internal/singularUtils.h	2015-08-26 09:24:26.264678078 -0400
@@ -18,7 +18,7 @@
 #define POLYMAKE_IDEAL_INTERNAL_SINGULAR_UTILS_H
 
 // Singular includes
-#include <Singular/libsingular.h>
+#include <libsingular.h>
 
 // polymake includes
 #include "polymake/client.h"
diff -up polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularConvertTypes.cc.singular polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularConvertTypes.cc
diff -up polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularIdeal.cc.singular polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularIdeal.cc
--- polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularIdeal.cc.singular	2015-08-26 09:16:29.000000000 -0400
+++ polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularIdeal.cc	2015-08-26 09:29:43.969529944 -0400
@@ -14,9 +14,9 @@
 --------------------------------------------------------------------------------
 */
 
-#include <Singular/libsingular.h>
-#include <kernel/combinatorics/stairc.h>
-#include <coeffs/mpr_complex.h>
+#include <libsingular.h>
+#include <singular/stairc.h>
+#include <singular/mpr_complex.h>
 
 #include "polymake/ideal/singularIdeal.h"
 #include "polymake/ideal/internal/singularTermOrderData.h"
@@ -155,7 +155,7 @@ public:
 
    SingularIdeal_wrap* initial_ideal() const {
       check_ring(singRing); 
-      ::ideal res = id_Head(singIdeal,IDRING(singRing));
+      ::ideal res = idHead(singIdeal);
       SingularIdeal_wrap* initial = new SingularIdeal_impl(res,singRing);
       id_Delete(&res,IDRING(singRing));
       return initial;
@@ -238,12 +238,12 @@ public:
          ring solring = (ring)iiRETURNEXPR.Data();
          // avoid redefinition message
          BITSET oldverb;
-         SI_SAVE_OPT2(oldverb);
-         si_opt_2 &= ~Sy_bit(V_REDEFINE);
+         oldverb = verbose;
+         verbose &= ~Sy_bit(V_REDEFINE);
          // switch to the new returned ring
          idhdl solRingHdl=enterid("solveRing", 0, RING_CMD, &IDROOT, FALSE);
          IDRING(solRingHdl)=solring;
-         SI_RESTORE_OPT2(oldverb);
+         verbose = oldverb;
          rSetHdl(solRingHdl);
          // retrieve solution list SOL from the interpreter
          idhdl sol = ggetid("SOL");
diff -up polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularInit.cc.singular polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularInit.cc
--- polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularInit.cc.singular	2015-08-26 09:16:29.000000000 -0400
+++ polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularInit.cc	2015-08-26 09:24:26.265678072 -0400
@@ -80,8 +80,8 @@ void init_singular()
    cerr << "*** singular siInit done. ***" << endl;
 #else
    // make singular library loading quiet
-   si_opt_2 &= ~Sy_bit(V_LOAD_LIB);
-   si_opt_2 &= ~Sy_bit(V_REDEFINE);
+   verbose &= ~Sy_bit(V_LOAD_LIB);
+   verbose &= ~Sy_bit(V_REDEFINE);
 #endif
    singular_initialized = 1;
 }
diff -up polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularUtils.cc.singular polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularUtils.cc
--- polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularUtils.cc.singular	2015-08-26 09:16:29.000000000 -0400
+++ polymake-2.15-beta2/bundled/singular/apps/ideal/src/singularUtils.cc	2015-08-26 09:24:26.265678072 -0400
@@ -14,7 +14,7 @@
 --------------------------------------------------------------------------------
 */
 
-#include <Singular/libsingular.h>
+#include <libsingular.h>
 
 #include "polymake/client.h"
 #include "polymake/Matrix.h"
diff -up polymake-2.15-beta2/bundled/singular/configure.pl.singular polymake-2.15-beta2/bundled/singular/configure.pl
--- polymake-2.15-beta2/bundled/singular/configure.pl.singular	2015-08-26 09:16:29.000000000 -0400
+++ polymake-2.15-beta2/bundled/singular/configure.pl	2015-08-26 09:24:26.265678072 -0400
@@ -46,13 +46,13 @@ sub proceed {
    chomp $singular_prefix;
    # yes we need it twice ...
 
-   $Libs = join(" ",$LDflags =~ m/(-l\w+)/g) . " -lfactory -lresources -lpolys -lomalloc";
+   $Libs = join(" ",$LDflags =~ m/(-l\w+)/g) . " -lsingular";
    $LDflags =~ s/ -l\w+//g;
    $LDflags =~ s/-L(\S+)/-L$1 -Wl,-rpath,$1/g;
    my $libdir = $1;
 
    my $error=Polymake::Configure::build_test_program(<<"---", CXXflags => $CXXflags, LDflags => $LDflags, Libs => $Libs);
-#include "Singular/libsingular.h"
+#include "libsingular.h"
 #include <string>
 #include <iostream>
 int main() {