diff --git a/configure b/configure
index bdea1887..527fdec0 100755
--- a/configure
+++ b/configure
@@ -686,6 +686,8 @@ GAMS_PATH
 gamspath
 GMSGENEXE
 GMSGENSCRIPT
+COIN_HAS_LAPACK_FALSE
+COIN_HAS_LAPACK_TRUE
 GAMSLIBCFLAGS
 COIN_HAS_GUROBI_FALSE
 COIN_HAS_GUROBI_TRUE
@@ -950,6 +952,8 @@ with_xpress_cflags
 with_gurobi
 with_gurobi_lflags
 with_gurobi_cflags
+with_lapack
+with_lapack_lflags
 with_gams
 '
       ac_precious_vars='build_alias
@@ -1774,6 +1778,12 @@ Optional Packages:
   --with-gurobi-cflags    Compiler flags for Gurobi appropriate for your
                           environment. (Most often, -I specs for header file
                           directories.)
+  --with-lapack           Use lapack. If an argument is given, 'yes' is
+                          equivalent to --with-lapack, 'no' is
+                          equivalent to --without-lapack. Any other argument
+                          is applied as for --with-lapack-lflags
+  --with-lapack-lflags    Linker flags for lapack appropriate for your
+                          environment. (Most often, -l specs for libraries.)
   --with-gams             specify directory of GAMS distribution
 
 Some influential environment variables:
@@ -22046,29 +22056,61 @@ fi
 
 done
 
-# if we have Ipopt, check if we have GotoBlas or MKL Blas functions to set number of threads
-if test $coin_has_ipopt = yes ; then
+# if we have Lapack, check if we have GotoBlas or MKL Blas functions to set number of threads
 
-  ac_save_LIBS="$LIBS"
-  LIBS="$ipopt_lflags $LIBS"
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for LAPACK" >&5
+printf %s "checking for LAPACK... " >&6; }
 
-    if test -n "$ipopt_pcfiles" ; then
-      temp_LFLAGS=`PKG_CONFIG_PATH="$COIN_PKG_CONFIG_PATH" $PKG_CONFIG --libs $pkg_static $ipopt_pcfiles`
-      LIBS="$temp_LFLAGS $LIBS"
+
+
+
+
+
+
+# Check whether --with-lapack was given.
+if test ${with_lapack+y}
+then :
+  withval=$with_lapack;
+fi
+
+
+
+# Check whether --with-lapack-lflags was given.
+if test ${with_lapack_lflags+y}
+then :
+  withval=$with_lapack_lflags;
+fi
+
+
+
+
+
+
+
+  coin_has_lapack=no
+  lapack_keep_looking=yes
+
+  if test "$with_lapack" != "no" ; then
+    if test "$with_lapack" != "yes" ; then
+      with_lapack_lflags="$with_lapack"
     fi
+    if test -n "$with_lapack_lflags" ; then
 
+  ac_save_LIBS="$LIBS"
+  LIBS="$with_lapack_lflags $LIBS"
 
-  goto_set_num_threads_namemangling=unknown
+
+  dsyev_namemangling=unknown
 
   for ac_extra in "no extra underscore" "extra underscore" ; do
     for ac_case in "lower case" "upper case" ; do
       for ac_trail in "underscore" "no underscore" ; do
         case $ac_case in
           "lower case")
-            ac_name=goto_set_num_threads
+            ac_name=dsyev
             ;;
           "upper case")
-            ac_name=GOTO_SET_NUM_THREADS
+            ac_name=DSYEV
             ;;
         esac
         if test "$ac_trail" = "underscore" ; then
@@ -22077,8 +22119,7 @@ if test $coin_has_ipopt = yes ; then
         if test "$ac_extra" = "extra underscore" ; then
           ac_name=${ac_name}_
         fi
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for function $ac_name in $LIBS" >&5
-printf %s "checking for function $ac_name in $LIBS... " >&6; }
+
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -22096,15 +22137,14 @@ return $ac_name ();
 _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
-  goto_set_num_threads_namemangling="${ac_case}, ${ac_trail}, ${ac_extra}"
+  dsyev_namemangling="${ac_case}, ${ac_trail}, ${ac_extra}"
            ac_success=yes
 else $as_nop
   ac_success=no
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_success" >&5
-printf "%s\n" "$ac_success" >&6; }
+
         if test $ac_success = yes ; then
           break 3
         fi
@@ -22114,34 +22154,43 @@ printf "%s\n" "$ac_success" >&6; }
   LIBS=$ac_save_LIBS
 
   if test $ac_success = yes ; then
+    coin_has_lapack=yes
+         lapack_what="user-specified ($with_lapack_lflags)"
+         lapack_keep_looking=no
+         lapack_lflags=$with_lapack_lflags
+    else as_fn_error $? "Cannot link to user-specified Lapack $with_lapack_lflags." "$LINENO" 5
+  fi
 
-printf "%s\n" "#define HAVE_GOTO_SETNUMTHREADS 1" >>confdefs.h
-
-
-
+    fi
+  else
+    lapack_keep_looking=no
+    lapack_what="user-specified"
   fi
 
 
-  ac_save_LIBS="$LIBS"
-  LIBS="$ipopt_lflags $LIBS"
+  if test "$lapack_keep_looking" = yes ; then
+    case $build in
+      *-linux*)
+        case "  " in
+          *\ int64\ * ) coin_mkl="-lmkl_intel_ilp64 -lmkl_sequential -lmkl_core -lm" ;;
+          *)          coin_mkl="-lmkl_intel_lp64 -lmkl_sequential -lmkl_core -lm" ;;
+        esac
 
-    if test -n "$ipopt_pcfiles" ; then
-      temp_LFLAGS=`PKG_CONFIG_PATH="$COIN_PKG_CONFIG_PATH" $PKG_CONFIG --libs $pkg_static $ipopt_pcfiles`
-      LIBS="$temp_LFLAGS $LIBS"
-    fi
+  ac_save_LIBS="$LIBS"
+  LIBS="$coin_mkl $LIBS"
 
 
-  omp_set_num_threads_namemangling=unknown
+  dsyev_namemangling=unknown
 
   for ac_extra in "no extra underscore" "extra underscore" ; do
     for ac_case in "lower case" "upper case" ; do
       for ac_trail in "underscore" "no underscore" ; do
         case $ac_case in
           "lower case")
-            ac_name=omp_set_num_threads
+            ac_name=dsyev
             ;;
           "upper case")
-            ac_name=OMP_SET_NUM_THREADS
+            ac_name=DSYEV
             ;;
         esac
         if test "$ac_trail" = "underscore" ; then
@@ -22150,8 +22199,7 @@ printf "%s\n" "#define HAVE_GOTO_SETNUMTHREADS 1" >>confdefs.h
         if test "$ac_extra" = "extra underscore" ; then
           ac_name=${ac_name}_
         fi
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for function $ac_name in $LIBS" >&5
-printf %s "checking for function $ac_name in $LIBS... " >&6; }
+
         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -22169,15 +22217,14 @@ return $ac_name ();
 _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
-  omp_set_num_threads_namemangling="${ac_case}, ${ac_trail}, ${ac_extra}"
+  dsyev_namemangling="${ac_case}, ${ac_trail}, ${ac_extra}"
            ac_success=yes
 else $as_nop
   ac_success=no
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_success" >&5
-printf "%s\n" "$ac_success" >&6; }
+
         if test $ac_success = yes ; then
           break 3
         fi
@@ -22187,158 +22234,879 @@ printf "%s\n" "$ac_success" >&6; }
   LIBS=$ac_save_LIBS
 
   if test $ac_success = yes ; then
+    coin_has_lapack=yes
+           lapack_lflags="$coin_mkl"
+           lapack_what="Intel MKL ($lapack_lflags)"
 
-printf "%s\n" "#define HAVE_OMP_SETNUMTHREADS 1" >>confdefs.h
 
+  fi
 
+      ;;
 
-  fi
+      *-*-solaris*)
+        case "  " in
+          *\ int64\ * ) ;;
+          *)
+  ac_save_LIBS="$LIBS"
+  LIBS="-lsunperf $LIBS"
 
-fi
 
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
-printf %s "checking for dlopen in -ldl... " >&6; }
-if test ${ac_cv_lib_dl_dlopen+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-ldl  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  dsyev_namemangling=unknown
+
+  for ac_extra in "no extra underscore" "extra underscore" ; do
+    for ac_case in "lower case" "upper case" ; do
+      for ac_trail in "underscore" "no underscore" ; do
+        case $ac_case in
+          "lower case")
+            ac_name=dsyev
+            ;;
+          "upper case")
+            ac_name=DSYEV
+            ;;
+        esac
+        if test "$ac_trail" = "underscore" ; then
+          ac_name=${ac_name}_
+        fi
+        if test "$ac_extra" = "extra underscore" ; then
+          ac_name=${ac_name}_
+        fi
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 /* Override any GCC internal prototype to avoid an error.
    Use char because int might match the return type of a GCC
    builtin and then its argument prototype would still apply.  */
-char dlopen ();
+char $ac_name ();
 int
 main (void)
 {
-return dlopen ();
+return $ac_name ();
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_link "$LINENO"
 then :
-  ac_cv_lib_dl_dlopen=yes
+  dsyev_namemangling="${ac_case}, ${ac_trail}, ${ac_extra}"
+           ac_success=yes
 else $as_nop
-  ac_cv_lib_dl_dlopen=no
+  ac_success=no
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.beam \
     conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
-printf "%s\n" "$ac_cv_lib_dl_dlopen" >&6; }
-if test "x$ac_cv_lib_dl_dlopen" = xyes
-then :
 
-  GAMSBONMIN_LFLAGS="$GAMSBONMIN_LFLAGS -ldl"
-  GAMSCBC_LFLAGS="$GAMSCBC_LFLAGS -ldl"
-  GAMSCOUENNE_LFLAGS="$GAMSCOUENNE_LFLAGS -ldl"
-  GAMSIPOPT_LFLAGS="$GAMSIPOPT_LFLAGS -ldl"
-  GAMSOSI_LFLAGS="$GAMSOSI_LFLAGS -ldl"
-  GAMSSCIP_LFLAGS="$GAMSSCIP_LFLAGS -ldl"
-  GAMSSOPLEX_LFLAGS="$GAMSSOPLEX_LFLAGS -ldl"
+        if test $ac_success = yes ; then
+          break 3
+        fi
+      done
+    done
+  done
+  LIBS=$ac_save_LIBS
 
-fi
+  if test $ac_success = yes ; then
+    coin_has_lapack=yes
+                lapack_lflags=-lsunperf
+                lapack_what="Sun Performance Library ($lapack_lflags)"
 
 
-ac_ext=c
-ac_cpp='$CPP $CPPFLAGS'
-ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
-ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
-ac_compiler_gnu=$ac_cv_c_compiler_gnu
+  fi
+ ;;
+        esac
+      ;;
 
+      *-cygwin* | *-mingw* | *-msys*)
+        old_IFS="$IFS"
+        IFS=";"
+        coin_mkl=""
+        for d in $LIB ; do
+          # turn $d into unix-style short path (no spaces); cannot do -us,
+          # so first do -ws, then -u
+          d=`cygpath -ws "$d"`
+          d=`cygpath -u "$d"`
+          if test "$enable_shared" = yes ; then
+            if test -e "$d/mkl_core_dll.lib" ; then
+              case "  " in
+                *\ int64\ * ) coin_mkl="$d/mkl_intel_ilp64_dll.lib $d/mkl_sequential_dll.lib $d/mkl_core_dll.lib" ;;
+                *)          coin_mkl="$d/mkl_intel_lp64_dll.lib $d/mkl_sequential_dll.lib $d/mkl_core_dll.lib" ;;
+              esac
+              break
+            fi
+          else
+            if test -e "$d/mkl_core.lib" ; then
+              case "  " in
+                *\ int64\ * ) coin_mkl="$d/mkl_intel_ilp64.lib $d/mkl_sequential.lib $d/mkl_core.lib" ;;
+                *)          coin_mkl="$d/mkl_intel_lp64.lib $d/mkl_sequential.lib $d/mkl_core.lib" ;;
+              esac
+              break
+            fi
+          fi
+        done
+        IFS="$old_IFS"
+        if test -n "$coin_mkl" ; then
 
-# name of gensolver script and exe
-case $build in
-  *-mingw* | *-cygwin* | *-msys* )
-    GMSGENSCRIPT=gmsgennt.cmd
-    GMSGENEXE=gmsgennx.exe
-    ;;
-  *)
-    GMSGENSCRIPT=gmsgenus.run
-    GMSGENEXE=gmsgenux.out
-    ;;
-esac
+  ac_save_LIBS="$LIBS"
+  LIBS="$coin_mkl $LIBS"
 
 
+  dsyev_namemangling=unknown
 
-###############
-# GAMS system #
-###############
+  for ac_extra in "no extra underscore" "extra underscore" ; do
+    for ac_case in "lower case" "upper case" ; do
+      for ac_trail in "underscore" "no underscore" ; do
+        case $ac_case in
+          "lower case")
+            ac_name=dsyev
+            ;;
+          "upper case")
+            ac_name=DSYEV
+            ;;
+        esac
+        if test "$ac_trail" = "underscore" ; then
+          ac_name=${ac_name}_
+        fi
+        if test "$ac_extra" = "extra underscore" ; then
+          ac_name=${ac_name}_
+        fi
 
-GAMS_PATH=UNAVAILABLE
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
 
-# Check whether --with-gams was given.
-if test ${with_gams+y}
-then :
-  withval=$with_gams; if test "$withval" != no ; then
-     as_ac_File=`printf "%s\n" "ac_cv_file_$withval/gams" | $as_tr_sh`
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $withval/gams" >&5
-printf %s "checking for $withval/gams... " >&6; }
-if eval test \${$as_ac_File+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  test "$cross_compiling" = yes &&
-  as_fn_error $? "cannot check for file existence when cross compiling" "$LINENO" 5
-if test -r "$withval/gams"; then
-  eval "$as_ac_File=yes"
-else
-  eval "$as_ac_File=no"
-fi
-fi
-eval ac_res=\$$as_ac_File
-	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
-printf "%s\n" "$ac_res" >&6; }
-if eval test \"x\$"$as_ac_File"\" = x"yes"
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+char $ac_name ();
+int
+main (void)
+{
+return $ac_name ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
 then :
-  GAMS_PATH=$withval
+  dsyev_namemangling="${ac_case}, ${ac_trail}, ${ac_extra}"
+           ac_success=yes
 else $as_nop
-  GAMS_PATH=UNAVAILABLE
+  ac_success=no
 fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+
+        if test $ac_success = yes ; then
+          break 3
+        fi
+      done
+    done
+  done
+  LIBS=$ac_save_LIBS
+
+  if test $ac_success = yes ; then
+    coin_has_lapack=yes
+                lapack_lflags="$coin_mkl"
+                lapack_what="Intel MKL ($lapack_lflags)"
 
-   fi
 
-else $as_nop
-  # Extract the first word of "gams", so it can be a program name with args.
-set dummy gams; ac_word=$2
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-printf %s "checking for $ac_word... " >&6; }
-if test ${ac_cv_path_gamspath+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  case $gamspath in
-  [\\/]* | ?:[\\/]*)
-  ac_cv_path_gamspath="$gamspath" # Let the user override the test with a path.
-  ;;
-  *)
-  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  case $as_dir in #(((
-    '') as_dir=./ ;;
-    */) ;;
-    *) as_dir=$as_dir/ ;;
-  esac
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
-    ac_cv_path_gamspath="$as_dir$ac_word$ac_exec_ext"
-    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
-    break 2
   fi
-done
-  done
-IFS=$as_save_IFS
 
-  test -z "$ac_cv_path_gamspath" && ac_cv_path_gamspath="UNAVAILABLE"
-  ;;
-esac
+        fi
+      ;;
+
+      *-darwin*)
+        case "  " in
+          *\ int64\ * ) coin_mkl="-lmkl_intel_ilp64 -lmkl_sequential -lmkl_core -lm" ;;
+          *)          coin_mkl="-lmkl_intel_lp64 -lmkl_sequential -lmkl_core -lm" ;;
+        esac
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$coin_mkl $LIBS"
+
+
+  dsyev_namemangling=unknown
+
+  for ac_extra in "no extra underscore" "extra underscore" ; do
+    for ac_case in "lower case" "upper case" ; do
+      for ac_trail in "underscore" "no underscore" ; do
+        case $ac_case in
+          "lower case")
+            ac_name=dsyev
+            ;;
+          "upper case")
+            ac_name=DSYEV
+            ;;
+        esac
+        if test "$ac_trail" = "underscore" ; then
+          ac_name=${ac_name}_
+        fi
+        if test "$ac_extra" = "extra underscore" ; then
+          ac_name=${ac_name}_
+        fi
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+char $ac_name ();
+int
+main (void)
+{
+return $ac_name ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  dsyev_namemangling="${ac_case}, ${ac_trail}, ${ac_extra}"
+           ac_success=yes
+else $as_nop
+  ac_success=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+
+        if test $ac_success = yes ; then
+          break 3
+        fi
+      done
+    done
+  done
+  LIBS=$ac_save_LIBS
+
+  if test $ac_success = yes ; then
+    coin_has_lapack=yes
+           lapack_lflags="$coin_mkl"
+           lapack_what="Intel MKL ($lapack_lflags)"
+
+
+  fi
+
+        if test "$coin_has_lapack" = no ; then
+          case "  " in
+            *\ int64\ * ) ;;
+            *)
+  ac_save_LIBS="$LIBS"
+  LIBS="-framework Accelerate $LIBS"
+
+
+  dsyev_namemangling=unknown
+
+  for ac_extra in "no extra underscore" "extra underscore" ; do
+    for ac_case in "lower case" "upper case" ; do
+      for ac_trail in "underscore" "no underscore" ; do
+        case $ac_case in
+          "lower case")
+            ac_name=dsyev
+            ;;
+          "upper case")
+            ac_name=DSYEV
+            ;;
+        esac
+        if test "$ac_trail" = "underscore" ; then
+          ac_name=${ac_name}_
+        fi
+        if test "$ac_extra" = "extra underscore" ; then
+          ac_name=${ac_name}_
+        fi
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+char $ac_name ();
+int
+main (void)
+{
+return $ac_name ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  dsyev_namemangling="${ac_case}, ${ac_trail}, ${ac_extra}"
+           ac_success=yes
+else $as_nop
+  ac_success=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+
+        if test $ac_success = yes ; then
+          break 3
+        fi
+      done
+    done
+  done
+  LIBS=$ac_save_LIBS
+
+  if test $ac_success = yes ; then
+    coin_has_lapack=yes
+                  lapack_lflags="-framework Accelerate"
+                  lapack_what="Accelerate framework ($lapack_lflags)"
+
+
+  fi
+
+               ;;
+          esac
+        fi
+      ;;
+    esac
+    if test "$coin_has_lapack" = yes ; then
+      lapack_keep_looking=no
+    fi
+  fi
+
+  if test "$lapack_keep_looking" = yes ; then
+    case "  " in
+      *\ int64\ * ) ;;
+      *)
+
+
+  if test -n "$PKG_CONFIG" ; then
+    if PKG_CONFIG_PATH="$COIN_PKG_CONFIG_PATH" $PKG_CONFIG --exists "lapack blas" ; then
+      LAPACK_VERSIONS=`PKG_CONFIG_PATH="$COIN_PKG_CONFIG_PATH" $PKG_CONFIG --modversion "lapack blas" 2>/dev/null | tr '\n' ' '`
+      lapack_what="generic module (lapack.pc blas.pc)"
+
+  ac_save_LIBS="$LIBS"
+
+
+    if test -n "lapack" ; then
+      temp_LFLAGS=`PKG_CONFIG_PATH="$COIN_PKG_CONFIG_PATH" $PKG_CONFIG --libs $pkg_static lapack`
+      LIBS="$temp_LFLAGS $LIBS"
+    fi
+
+
+  dsyev_namemangling=unknown
+
+  for ac_extra in "no extra underscore" "extra underscore" ; do
+    for ac_case in "lower case" "upper case" ; do
+      for ac_trail in "underscore" "no underscore" ; do
+        case $ac_case in
+          "lower case")
+            ac_name=dsyev
+            ;;
+          "upper case")
+            ac_name=DSYEV
+            ;;
+        esac
+        if test "$ac_trail" = "underscore" ; then
+          ac_name=${ac_name}_
+        fi
+        if test "$ac_extra" = "extra underscore" ; then
+          ac_name=${ac_name}_
+        fi
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+char $ac_name ();
+int
+main (void)
+{
+return $ac_name ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  dsyev_namemangling="${ac_case}, ${ac_trail}, ${ac_extra}"
+           ac_success=yes
+else $as_nop
+  ac_success=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+
+        if test $ac_success = yes ; then
+          break 3
+        fi
+      done
+    done
+  done
+  LIBS=$ac_save_LIBS
+
+  if test $ac_success = yes ; then
+    coin_has_lapack=yes
+               lapack_keep_looking=no
+               lapack_pcfiles="lapack blas"
+    else { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: lapack.pc and blas.pc present, but could not find dsyev when trying to link with LAPACK." >&5
+printf "%s\n" "$as_me: WARNING: lapack.pc and blas.pc present, but could not find dsyev when trying to link with LAPACK." >&2;}
+  fi
+
+
+    else
+      LAPACK_PKG_ERRORS=`PKG_CONFIG_PATH="$COIN_PKG_CONFIG_PATH" $PKG_CONFIG $pkg_short_errors --errors-to-stdout --print-errors "lapack blas"`
+
+    fi
+  else
+    as_fn_error $? "\"Cannot check for existence of module lapack without pkgconf\"" "$LINENO" 5
+  fi
+
+         ;;
+    esac
+  fi
+
+  if test "$lapack_keep_looking" = yes ; then
+    case "  " in
+      *\ int64\ * ) coin_lapack="-llapack64 -lblas64" ;;
+      *) coin_lapack="-llapack -lblas" ;;
+    esac
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$coin_lapack $LIBS"
+
+
+  dsyev_namemangling=unknown
+
+  for ac_extra in "no extra underscore" "extra underscore" ; do
+    for ac_case in "lower case" "upper case" ; do
+      for ac_trail in "underscore" "no underscore" ; do
+        case $ac_case in
+          "lower case")
+            ac_name=dsyev
+            ;;
+          "upper case")
+            ac_name=DSYEV
+            ;;
+        esac
+        if test "$ac_trail" = "underscore" ; then
+          ac_name=${ac_name}_
+        fi
+        if test "$ac_extra" = "extra underscore" ; then
+          ac_name=${ac_name}_
+        fi
+
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+char $ac_name ();
+int
+main (void)
+{
+return $ac_name ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  dsyev_namemangling="${ac_case}, ${ac_trail}, ${ac_extra}"
+           ac_success=yes
+else $as_nop
+  ac_success=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+
+        if test $ac_success = yes ; then
+          break 3
+        fi
+      done
+    done
+  done
+  LIBS=$ac_save_LIBS
+
+  if test $ac_success = yes ; then
+    coin_has_lapack=yes
+       lapack_lflags="$coin_lapack"
+       lapack_what="generic library ($lapack_lflags)"
+
+  fi
+
+  fi
+
+  case "$coin_has_lapack" in
+    yes)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $coin_has_lapack: $lapack_what" >&5
+printf "%s\n" "$coin_has_lapack: $lapack_what" >&6; }
+      ;;
+    no)
+      if test -n "$lapack_what" ; then
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $coin_has_lapack ($lapack_what)" >&5
+printf "%s\n" "$coin_has_lapack ($lapack_what)" >&6; }
+      else
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $coin_has_lapack" >&5
+printf "%s\n" "$coin_has_lapack" >&6; }
+      fi
+      ;;
+    *)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: CHK_LAPACK: unexpected result '$coin_has_lapack'" >&5
+printf "%s\n" "$as_me: WARNING: CHK_LAPACK: unexpected result '$coin_has_lapack'" >&2;}
+      ;;
+  esac
+
+   if test $coin_has_lapack = yes; then
+  COIN_HAS_LAPACK_TRUE=
+  COIN_HAS_LAPACK_FALSE='#'
+else
+  COIN_HAS_LAPACK_TRUE='#'
+  COIN_HAS_LAPACK_FALSE=
+fi
+
+
+  if test $coin_has_lapack = yes ; then
+
+printf "%s\n" "#define GAMSLINKS_HAS_LAPACK 1" >>confdefs.h
+
+
+
+
+  case "${dsyev_namemangling}" in
+   "lower case, no underscore, no extra underscore")
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC(name,NAME) name" >>confdefs.h
+
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC_(name,NAME) name" >>confdefs.h
+ ;;
+   "lower case, no underscore, extra underscore")
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC(name,NAME) name" >>confdefs.h
+
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC_(name,NAME) name ## _" >>confdefs.h
+ ;;
+   "lower case, underscore, no extra underscore")
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC(name,NAME) name ## _" >>confdefs.h
+
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC_(name,NAME) name ## _" >>confdefs.h
+ ;;
+   "lower case, underscore, extra underscore")
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC(name,NAME) name ## _" >>confdefs.h
+
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC_(name,NAME) name ## __" >>confdefs.h
+ ;;
+   "upper case, no underscore, no extra underscore")
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC(name,NAME) NAME" >>confdefs.h
+
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC_(name,NAME) NAME" >>confdefs.h
+ ;;
+   "upper case, no underscore, extra underscore")
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC(name,NAME) NAME" >>confdefs.h
+
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC_(name,NAME) NAME ## _" >>confdefs.h
+ ;;
+   "upper case, underscore, no extra underscore")
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC(name,NAME) NAME ## _" >>confdefs.h
+
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC_(name,NAME) NAME ## _" >>confdefs.h
+ ;;
+   "upper case, underscore, extra underscore")
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC(name,NAME) NAME ## _" >>confdefs.h
+
+      printf "%s\n" "#define GAMSLINKS_LAPACK_FUNC_(name,NAME) NAME ## __" >>confdefs.h
+ ;;
+   *)
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: Unsupported or unknown name-mangling scheme: ${dsyev_namemangling}" >&5
+printf "%s\n" "$as_me: WARNING: Unsupported or unknown name-mangling scheme: ${dsyev_namemangling}" >&2;}
+      ;;
+  esac
+
+
+  fi
+
+if test $coin_has_lapack = yes; then
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$lapack_lflags $LIBS"
+
+    if test -n "$lapack_pcfiles" ; then
+      temp_LFLAGS=`PKG_CONFIG_PATH="$COIN_PKG_CONFIG_PATH" $PKG_CONFIG --libs $pkg_static $lapack_pcfiles`
+      LIBS="$temp_LFLAGS $LIBS"
+    fi
+
+
+  goto_set_num_threads_namemangling=unknown
+
+  for ac_extra in "no extra underscore" "extra underscore" ; do
+    for ac_case in "lower case" "upper case" ; do
+      for ac_trail in "underscore" "no underscore" ; do
+        case $ac_case in
+          "lower case")
+            ac_name=goto_set_num_threads
+            ;;
+          "upper case")
+            ac_name=GOTO_SET_NUM_THREADS
+            ;;
+        esac
+        if test "$ac_trail" = "underscore" ; then
+          ac_name=${ac_name}_
+        fi
+        if test "$ac_extra" = "extra underscore" ; then
+          ac_name=${ac_name}_
+        fi
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for function $ac_name in $LIBS" >&5
+printf %s "checking for function $ac_name in $LIBS... " >&6; }
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+char $ac_name ();
+int
+main (void)
+{
+return $ac_name ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  goto_set_num_threads_namemangling="${ac_case}, ${ac_trail}, ${ac_extra}"
+           ac_success=yes
+else $as_nop
+  ac_success=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_success" >&5
+printf "%s\n" "$ac_success" >&6; }
+        if test $ac_success = yes ; then
+          break 3
+        fi
+      done
+    done
+  done
+  LIBS=$ac_save_LIBS
+
+  if test $ac_success = yes ; then
+
+printf "%s\n" "#define HAVE_GOTO_SETNUMTHREADS 1" >>confdefs.h
+
+
+
+  fi
+
+
+  ac_save_LIBS="$LIBS"
+  LIBS="$lapack_lflags $LIBS"
+
+    if test -n "$lapack_pcfiles" ; then
+      temp_LFLAGS=`PKG_CONFIG_PATH="$COIN_PKG_CONFIG_PATH" $PKG_CONFIG --libs $pkg_static $lapack_pcfiles`
+      LIBS="$temp_LFLAGS $LIBS"
+    fi
+
+
+  omp_set_num_threads_namemangling=unknown
+
+  for ac_extra in "no extra underscore" "extra underscore" ; do
+    for ac_case in "lower case" "upper case" ; do
+      for ac_trail in "underscore" "no underscore" ; do
+        case $ac_case in
+          "lower case")
+            ac_name=omp_set_num_threads
+            ;;
+          "upper case")
+            ac_name=OMP_SET_NUM_THREADS
+            ;;
+        esac
+        if test "$ac_trail" = "underscore" ; then
+          ac_name=${ac_name}_
+        fi
+        if test "$ac_extra" = "extra underscore" ; then
+          ac_name=${ac_name}_
+        fi
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for function $ac_name in $LIBS" >&5
+printf %s "checking for function $ac_name in $LIBS... " >&6; }
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+char $ac_name ();
+int
+main (void)
+{
+return $ac_name ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  omp_set_num_threads_namemangling="${ac_case}, ${ac_trail}, ${ac_extra}"
+           ac_success=yes
+else $as_nop
+  ac_success=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_success" >&5
+printf "%s\n" "$ac_success" >&6; }
+        if test $ac_success = yes ; then
+          break 3
+        fi
+      done
+    done
+  done
+  LIBS=$ac_save_LIBS
+
+  if test $ac_success = yes ; then
+
+printf "%s\n" "#define HAVE_OMP_SETNUMTHREADS 1" >>confdefs.h
+
+
+
+  fi
+
+fi
+
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+printf %s "checking for dlopen in -ldl... " >&6; }
+if test ${ac_cv_lib_dl_dlopen+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+char dlopen ();
+int
+main (void)
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"
+then :
+  ac_cv_lib_dl_dlopen=yes
+else $as_nop
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.beam \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+printf "%s\n" "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes
+then :
+
+  GAMSBONMIN_LFLAGS="$GAMSBONMIN_LFLAGS -ldl"
+  GAMSCBC_LFLAGS="$GAMSCBC_LFLAGS -ldl"
+  GAMSCOUENNE_LFLAGS="$GAMSCOUENNE_LFLAGS -ldl"
+  GAMSIPOPT_LFLAGS="$GAMSIPOPT_LFLAGS -ldl"
+  GAMSOSI_LFLAGS="$GAMSOSI_LFLAGS -ldl"
+  GAMSSCIP_LFLAGS="$GAMSSCIP_LFLAGS -ldl"
+  GAMSSOPLEX_LFLAGS="$GAMSSOPLEX_LFLAGS -ldl"
+
+fi
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+# name of gensolver script and exe
+case $build in
+  *-mingw* | *-cygwin* | *-msys* )
+    GMSGENSCRIPT=gmsgennt.cmd
+    GMSGENEXE=gmsgennx.exe
+    ;;
+  *)
+    GMSGENSCRIPT=gmsgenus.run
+    GMSGENEXE=gmsgenux.out
+    ;;
+esac
+
+
+
+###############
+# GAMS system #
+###############
+
+GAMS_PATH=UNAVAILABLE
+
+# Check whether --with-gams was given.
+if test ${with_gams+y}
+then :
+  withval=$with_gams; if test "$withval" != no ; then
+     as_ac_File=`printf "%s\n" "ac_cv_file_$withval/gams" | $as_tr_sh`
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $withval/gams" >&5
+printf %s "checking for $withval/gams... " >&6; }
+if eval test \${$as_ac_File+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  test "$cross_compiling" = yes &&
+  as_fn_error $? "cannot check for file existence when cross compiling" "$LINENO" 5
+if test -r "$withval/gams"; then
+  eval "$as_ac_File=yes"
+else
+  eval "$as_ac_File=no"
+fi
+fi
+eval ac_res=\$$as_ac_File
+	       { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+printf "%s\n" "$ac_res" >&6; }
+if eval test \"x\$"$as_ac_File"\" = x"yes"
+then :
+  GAMS_PATH=$withval
+else $as_nop
+  GAMS_PATH=UNAVAILABLE
+fi
+
+   fi
+
+else $as_nop
+  # Extract the first word of "gams", so it can be a program name with args.
+set dummy gams; ac_word=$2
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+printf %s "checking for $ac_word... " >&6; }
+if test ${ac_cv_path_gamspath+y}
+then :
+  printf %s "(cached) " >&6
+else $as_nop
+  case $gamspath in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_gamspath="$gamspath" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
+    ac_cv_path_gamspath="$as_dir$ac_word$ac_exec_ext"
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path_gamspath" && ac_cv_path_gamspath="UNAVAILABLE"
+  ;;
+esac
 fi
 gamspath=$ac_cv_path_gamspath
 if test -n "$gamspath"; then
@@ -22937,6 +23705,10 @@ if test -z "${COIN_HAS_GUROBI_TRUE}" && test -z "${COIN_HAS_GUROBI_FALSE}"; then
   as_fn_error $? "conditional \"COIN_HAS_GUROBI\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${COIN_HAS_LAPACK_TRUE}" && test -z "${COIN_HAS_LAPACK_FALSE}"; then
+  as_fn_error $? "conditional \"COIN_HAS_LAPACK\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 
 : "${CONFIG_STATUS=./config.status}"
 ac_write_fail=0
diff --git a/configure.ac b/configure.ac
index 45180821..0c1b8b79 100644
--- a/configure.ac
+++ b/configure.ac
@@ -95,13 +95,14 @@ AC_CHECK_FUNCS([vsnprintf _vsnprintf],[break])
 # check for strtok variants
 AC_CHECK_FUNCS([strtok_r strtok_s strtok],[break])
 
-# if we have Ipopt, check if we have GotoBlas or MKL Blas functions to set number of threads
-if test $coin_has_ipopt = yes ; then
-  AC_COIN_TRY_LINK([goto_set_num_threads],[$ipopt_lflags],[$ipopt_pcfiles],
-    AC_DEFINE([HAVE_GOTO_SETNUMTHREADS],[1],[Define to 1 if Ipopt has goto_set_num_threads])
+# if we have Lapack, check if we have GotoBlas or MKL Blas functions to set number of threads
+AC_COIN_CHK_LAPACK
+if test $coin_has_lapack = yes; then
+  AC_COIN_TRY_LINK([goto_set_num_threads],[$lapack_lflags],[$lapack_pcfiles],
+    AC_DEFINE([HAVE_GOTO_SETNUMTHREADS],[1],[Define to 1 if Lapack has goto_set_num_threads])
   )
-  AC_COIN_TRY_LINK([omp_set_num_threads],[$ipopt_lflags],[$ipopt_pcfiles],
-    AC_DEFINE([HAVE_OMP_SETNUMTHREADS],[1],[Define to 1 if Ipopt has omp_set_num_threads])
+  AC_COIN_TRY_LINK([omp_set_num_threads],[$lapack_lflags],[$lapack_pcfiles],
+    AC_DEFINE([HAVE_OMP_SETNUMTHREADS],[1],[Define to 1 if Lapack has omp_set_num_threads])
   )
 fi
 
diff --git a/src/utils/config.h.in b/src/utils/config.h.in
index 61cde76f..60846d7c 100644
--- a/src/utils/config.h.in
+++ b/src/utils/config.h.in
@@ -36,6 +36,9 @@
 /* Define to 1 if Ipopt is available. */
 #undef GAMSLINKS_HAS_IPOPT
 
+/* Define to 1 if the LAPACK package is available */
+#undef GAMSLINKS_HAS_LAPACK
+
 /* Define to 1 if the Mosek package is available */
 #undef GAMSLINKS_HAS_MOSEK
 
@@ -63,6 +66,13 @@
 /* Define to 1 if the Xpress package is available */
 #undef GAMSLINKS_HAS_XPRESS
 
+/* Define to a macro mangling the given C identifier (in lower and upper
+   case). */
+#undef GAMSLINKS_LAPACK_FUNC
+
+/* As GAMSLINKS_LAPACK_FUNC, but for C identifiers containing underscores. */
+#undef GAMSLINKS_LAPACK_FUNC_
+
 /* Version number of project */
 #undef GAMSLINKS_VERSION
 
@@ -87,13 +97,13 @@
 /* Define to 1 if you have the <dlfcn.h> header file. */
 #undef HAVE_DLFCN_H
 
-/* Define to 1 if Ipopt has goto_set_num_threads */
+/* Define to 1 if Lapack has goto_set_num_threads */
 #undef HAVE_GOTO_SETNUMTHREADS
 
 /* Define to 1 if you have the <inttypes.h> header file. */
 #undef HAVE_INTTYPES_H
 
-/* Define to 1 if Ipopt has omp_set_num_threads */
+/* Define to 1 if Lapack has omp_set_num_threads */
 #undef HAVE_OMP_SETNUMTHREADS
 
 /* Define to 1 if you have the `snprintf' function. */