Eliminate QT_NO_DYNAMIC_LIBRARY

The library feature already covers this. As library depends on the
dlopen compile check, we can assume dlopen to be available, also on
vxworks.

Change-Id: Idcdb07ab4688c6158651d9a5ad5e2ba126bd7d9e
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>

2 files changed, 11 insertions, 23 deletions

diff --git a/src/corelib/configure.json b/src/corelib/configure.json
index 66bf0dac92..76dfed3128 100644
--- a/src/corelib/configure.json
+++ b/src/corelib/configure.json
@@ -211,8 +211,7 @@
         },
         "dlopen": {
             "label": "dlopen()",
-            "condition": "tests.dlopen || libs.libdl",
-            "output": [ { "type": "define", "negative": true, "name": "QT_NO_DYNAMIC_LIBRARY" } ]
+            "condition": "tests.dlopen || libs.libdl"
         },
         "libdl": {
             "label": "dlopen() in libdl",
@@ -456,6 +455,7 @@
             "label": "QLibrary",
             "purpose": "Provides a wrapper for dynamically loaded libraries.",
             "section": "File I/O",
+            "condition": "config.win32 || config.hpux || (!config.nacl && features.dlopen)",
             "output": [ "publicFeature", "feature" ]
         },
         "settings": {
diff --git a/src/corelib/plugin/qlibrary_unix.cpp b/src/corelib/plugin/qlibrary_unix.cpp
index 9db0b7ff39..8b16021303 100644
--- a/src/corelib/plugin/qlibrary_unix.cpp
+++ b/src/corelib/plugin/qlibrary_unix.cpp
@@ -50,13 +50,9 @@
 #  include <private/qcore_mac_p.h>
 #endif
 
-#if (defined(Q_OS_VXWORKS) && !defined(VXWORKS_RTP)) || defined (Q_OS_NACL)
-#define QT_NO_DYNAMIC_LIBRARY
-#endif
-
 QT_BEGIN_NAMESPACE
 
-#if !defined(QT_HPUX_LD) && !defined(QT_NO_DYNAMIC_LIBRARY)
+#if !defined(QT_HPUX_LD)
 QT_BEGIN_INCLUDE_NAMESPACE
 #include <dlfcn.h>
 QT_END_INCLUDE_NAMESPACE
@@ -64,9 +60,7 @@ QT_END_INCLUDE_NAMESPACE
 
 static QString qdlerror()
 {
-#if defined(QT_NO_DYNAMIC_LIBRARY)
-    const char *err = "This platform does not support dynamic libraries.";
-#elif !defined(QT_HPUX_LD)
+#if !defined(QT_HPUX_LD)
     const char *err = dlerror();
 #else
     const char *err = strerror(errno);
@@ -131,7 +125,6 @@ QStringList QLibraryPrivate::prefixes_sys()
 bool QLibraryPrivate::load_sys()
 {
     QString attempt;
-#if !defined(QT_NO_DYNAMIC_LIBRARY)
     QFileSystemEntry fsEntry(fileName);
 
     QString path = fsEntry.path();
@@ -250,7 +243,6 @@ bool QLibraryPrivate::load_sys()
         }
     }
 #endif
-#endif // QT_NO_DYNAMIC_LIBRARY
     if (!pHnd) {
         errorString = QLibrary::tr("Cannot load library %1: %2").arg(fileName).arg(qdlerror());
     }
@@ -263,29 +255,27 @@ bool QLibraryPrivate::load_sys()
 
 bool QLibraryPrivate::unload_sys()
 {
-#if !defined(QT_NO_DYNAMIC_LIBRARY)
-#  if defined(QT_HPUX_LD)
+#if defined(QT_HPUX_LD)
     if (shl_unload((shl_t)pHnd)) {
-#  else
+#else
     if (dlclose(pHnd)) {
-#  endif
-#  if defined (Q_OS_QNX)              // Workaround until fixed in QNX; fixes crash in
+#endif
+#if defined (Q_OS_QNX)                // Workaround until fixed in QNX; fixes crash in
         char *error = dlerror();      // QtDeclarative auto test "qqmlenginecleanup" for instance
         if (!qstrcmp(error, "Shared objects still referenced")) // On QNX that's only "informative"
             return true;
         errorString = QLibrary::tr("Cannot unload library %1: %2").arg(fileName)
                                                                   .arg(QLatin1String(error));
-#  else
+#else
         errorString = QLibrary::tr("Cannot unload library %1: %2").arg(fileName).arg(qdlerror());
-#  endif
+#endif
         return false;
     }
-#endif
     errorString.clear();
     return true;
 }
 
-#if defined(Q_OS_LINUX) && !defined(QT_NO_DYNAMIC_LIBRARY)
+#if defined(Q_OS_LINUX)
 Q_CORE_EXPORT QFunctionPointer qt_linux_find_symbol_sys(const char *symbol)
 {
     return QFunctionPointer(dlsym(RTLD_DEFAULT, symbol));
@@ -305,8 +295,6 @@ QFunctionPointer QLibraryPrivate::resolve_sys(const char* symbol)
     QFunctionPointer address = 0;
     if (shl_findsym((shl_t*)&pHnd, symbol, TYPE_UNDEFINED, &address) < 0)
         address = 0;
-#elif defined (QT_NO_DYNAMIC_LIBRARY)
-    QFunctionPointer address = 0;
 #else
     QFunctionPointer address = QFunctionPointer(dlsym(pHnd, symbol));
 #endif