Add support for GUI bench tools in bench/gui using wxWidget framework.

Author: losvald

Diff for: Makefile.am

@@ -1,4 +1,4 @@
 AUTOMAKE_OPTIONS = subdir-objects
 ACLOCAL_AMFLAGS = ${ACLOCAL_FLAGS}
-SUBDIRS = src test bench
+SUBDIRS = src test bench bench/gui
 dist_noinst_SCRIPTS = autogen.sh

Diff for: bench/gui/.gitignore

@@ -0,0 +1 @@
+/gen/

Diff for: bench/gui/Makefile.am

@@ -0,0 +1,6 @@
+AM_CXXFLAGS = --std=c++11 -pedantic -Wall $(WX_CXXFLAGS)
+LDADD = $(WX_LIBS)
+bin_PROGRAMS = smvd
+
+# Sparse Matrix View Designer
+smvd_SOURCES = smvd.cpp gen/smvd_gui.cpp

Diff for: bench/gui/smvd.cpp

@@ -0,0 +1,11 @@
+#include <wx/wx.h>
+
+class SmvdApp : public wxApp {
+ public:
+  virtual bool OnInit() override {
+    // TODO:
+    return true;
+  }
+};
+
+IMPLEMENT_APP(SmvdApp)

Diff for: configure.ac

@@ -6,7 +6,24 @@ AM_INIT_AUTOMAKE([1.10 foreign -Wall no-define])
 AC_PROG_CXX
 LT_INIT
 AC_CONFIG_HEADERS([config.h])
-AC_CONFIG_FILES([Makefile src/Makefile test/Makefile bench/Makefile])
+AC_CONFIG_FILES([Makefile src/Makefile test/Makefile bench/Makefile \
+	bench/gui/Makefile])
+
+# Check for wxWidgets version >= 3 (required for test/gui)
+AM_OPTIONS_WXCONFIG
+reqwx=3.0.0
+AM_PATH_WXCONFIG($reqwx, wxWin=1)
+if test "$wxWin" != 1; then
+  AC_MSG_ERROR([
+	wxWidgets must be installed on your system.
+
+	Please check that wx-config is in path, the directory where
+	wxWidgets libraries are installed (returned by
+	'wx-config --libs' or 'wx-config --static --libs'
+	command) is in LD_LIBRARY_PATH or equivalent variable
+	and wxWidgets version is $reqwx or above.
+  ])
+fi
 
 AC_LANG(C++)
 AC_LINK_IFELSE(