Add aspell support on Windows

src/utils/dlib.cpp

@@ -0,0 +1,82 @@
+/* Copyright (C) 2017-2019 J.F.Dockes
+ *
+ * License: GPL 2.1
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifdef BUILDING_RECOLL
+#include "autoconfig.h"
+#else
+#include "config.h"
+#endif
+
+#include "dlib.h"
+
+#include "pathut.h"
+#include "smallut.h"
+
+#ifdef _WIN32
+#include "safewindows.h"
+#elif defined(HAVE_DLOPEN)
+#include <dlfcn.h>
+#else
+#error dlib.cpp not ported on this system
+#endif
+
+void *dlib_open(const std::string& libname, int flags)
+{
+#ifdef _WIN32
+    return LoadLibraryA(libname.c_str());
+#elif defined(HAVE_DLOPEN)
+    return dlopen(libname.c_str(), RTLD_LAZY);
+#else
+    return nullptr;
+#endif
+}
+
+void *dlib_sym(void *handle, const char *name)
+{
+#ifdef _WIN32
+    return (void *)::GetProcAddress((HMODULE)handle, name);
+#elif defined(HAVE_DLOPEN)
+    return dlsym(handle, name);
+#else
+    return nullptr;
+#endif
+}
+
+void dlib_close(void *handle)
+{
+#ifdef _WIN32
+    ::FreeLibrary((HMODULE)handle);
+#elif defined(HAVE_DLOPEN)
+    dlclose(handle);
+#endif
+}
+
+const char *dlib_error()
+{
+#ifdef _WIN32
+    int error = GetLastError();
+    static std::string errorstring;
+    errorstring = std::string("dlopen/dlsym error: ") + lltodecstr(error);
+    return errorstring.c_str();
+#elif defined(HAVE_DLOPEN)
+    return dlerror();
+#else
+    return "??? dlib not ported";
+#endif
+}    

src/utils/dlib.h

@@ -0,0 +1,32 @@
+/* Copyright (C) 2017-2019 J.F.Dockes
+ *
+ * License: GPL 2.1
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef _DLIB_H_INCLUDED_
+#define _DLIB_H_INCLUDED_
+
+/** Dynamic library functions */
+
+#include <string>
+
+extern void *dlib_open(const std::string& libname, int flags = 0);
+extern void *dlib_sym(void *handle, const char *name);
+extern void dlib_close(void *handle);
+extern const char *dlib_error();
+
+#endif /* _DLIB_H_INCLUDED_ */