more DG-UX compilation fixes (thanks to Benjamin Beckwith)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1784 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/defs.h

@@ -72,9 +72,9 @@
 
 // suppress some Visual C++ warnings
 #ifdef __VISUALC__
-#   pragma warning(disable:4244)    // cobversion from double to float
+#   pragma warning(disable:4244)    // conversion from double to float
 #   pragma warning(disable:4100)    // unreferenced formal parameter
-#endif
+#endif // __VISUALC__
 
 // suppress some Salford C++ warnings
 #ifdef __SALFORDC__
@@ -83,7 +83,13 @@
 #   pragma suppress 61              // enum has no name (doesn't suppress!)
 #   pragma suppress 106             // unnamed, unused parameter
 #   pragma suppress 571             // Virtual function hiding
-#endif
+#endif // __SALFORDC__
+
+// Digital Unix C++ compiler only defines this symbol for .cxx and .hxx files,
+// so definte it ourselves
+#ifdef __DECCXX
+    #define __cplusplus
+#endif // __DECCXX
 
 //////////////////////////////////////////////////////////////////////////////////
 // Currently Only MS-Windows/NT, XView and Motif are supported

src/gtk/app.cpp

@@ -30,13 +30,17 @@
 #endif
 #include "unistd.h"
 
-// add more here if you run into problems
+// many versions of Unices have this function, but it is not defined in system
-#if defined(__SUN__) && !defined(__SunOs_5_6) && !defined(__SunOs_5_7) && !defined(__SUNPRO_CC)
+// headers - please add your system here if it is the case for your OS.
-extern "C" 
+// SunOS < 5.6 (i.e. Solaris < 2.6) and DG-UX are like this.
-{
+#if (defined(__SUN__) && !defined(__SunOs_5_6) && \
-void usleep(unsigned long usec); 
+                         !defined(__SunOs_5_7) && !defined(__SUNPRO_CC)) || \
-};
+     defined(__osf__)
-#endif
+    extern "C" 
+    {
+        void usleep(unsigned long usec); 
+    };
+#endif // Unices without usleep()
 
 #include "glib.h"
 #include "gdk/gdk.h"

src/gtk/utilsgtk.cpp

@@ -43,14 +43,26 @@
   #include <sys/systeminfo.h>
 #endif
 
-#ifdef __SOLARIS__
+// many versions of Unices have this function, but it is not defined in system
-// somehow missing from sys/wait.h but in the system's docs
+// headers - please add your system here if it is the case for your OS.
-extern "C"
+// SunOS (and Solaris) and DG-UX are like this.
-{
+#if defined(__SOLARIS__) || defined(__osf__)
-   pid_t wait4(pid_t pid, int *statusp, int options, struct rusage
+    extern "C"
-               *rusage);
+    {
-}
+        pid_t wait4(pid_t pid, int *statusp, int options,
-#endif
+                    struct rusage *rusage);
+    }
+
+    #define wxWait4(pid, stat, flags, rusage) wait4(pid, stat, flags, rusage)
+#elif defined(__sgi) || defined(__HPUX__)
+    // no wait4() at all on these systems
+    // TODO verify whether wait3() really works in this situation
+    #define wxWait4(pid, stat, flags, rusage) wait3(stat, flags, rusage)
+#else
+    // other Unices: assume have wait4(), although it's not standard (but
+    // Linux and FreeBSD do have it)
+    #define wxWait4(pid, stat, flags, rusage) wait4(pid, stat, flags, rusage)
+#endif // wait4()
 
 //------------------------------------------------------------------------
 // misc.
@@ -270,18 +282,8 @@ static void GTK_EndProcessDetector(gpointer data, gint source,
 
     pid = (proc_data->pid > 0) ? proc_data->pid : -(proc_data->pid);
 
-    /* wait4 is not part of any standard, use at own risk
+    int status = 0;
-     * not sure what wait4 does, but wait3 seems to be closest, whats a digit ;-)
+    wxWait4(pid, &status, 0, (rusage *) NULL);
-     * --- offer@sgi.com */
-    // VZ: wait4() will be woken up by a signal, not wait3 - so it's quite
-    //     different (also, wait3() waits for any child, wait4() only for this
-    //     one)
-    int status = -1;
-#if !defined(__sgi)
-    wait4(pid, &status, 0, (rusage *) NULL);
-#else
-    wait3(&status, 0, (rusage *) NULL);
-#endif
 
     close(source);
     gdk_input_remove(proc_data->tag);

src/gtk1/app.cpp

@@ -30,13 +30,17 @@
 #endif
 #include "unistd.h"
 
-// add more here if you run into problems
+// many versions of Unices have this function, but it is not defined in system
-#if defined(__SUN__) && !defined(__SunOs_5_6) && !defined(__SunOs_5_7) && !defined(__SUNPRO_CC)
+// headers - please add your system here if it is the case for your OS.
-extern "C" 
+// SunOS < 5.6 (i.e. Solaris < 2.6) and DG-UX are like this.
-{
+#if (defined(__SUN__) && !defined(__SunOs_5_6) && \
-void usleep(unsigned long usec); 
+                         !defined(__SunOs_5_7) && !defined(__SUNPRO_CC)) || \
-};
+     defined(__osf__)
-#endif
+    extern "C" 
+    {
+        void usleep(unsigned long usec); 
+    };
+#endif // Unices without usleep()
 
 #include "glib.h"
 #include "gdk/gdk.h"

src/gtk1/utilsgtk.cpp

@@ -43,14 +43,26 @@
   #include <sys/systeminfo.h>
 #endif
 
-#ifdef __SOLARIS__
+// many versions of Unices have this function, but it is not defined in system
-// somehow missing from sys/wait.h but in the system's docs
+// headers - please add your system here if it is the case for your OS.
-extern "C"
+// SunOS (and Solaris) and DG-UX are like this.
-{
+#if defined(__SOLARIS__) || defined(__osf__)
-   pid_t wait4(pid_t pid, int *statusp, int options, struct rusage
+    extern "C"
-               *rusage);
+    {
-}
+        pid_t wait4(pid_t pid, int *statusp, int options,
-#endif
+                    struct rusage *rusage);
+    }
+
+    #define wxWait4(pid, stat, flags, rusage) wait4(pid, stat, flags, rusage)
+#elif defined(__sgi) || defined(__HPUX__)
+    // no wait4() at all on these systems
+    // TODO verify whether wait3() really works in this situation
+    #define wxWait4(pid, stat, flags, rusage) wait3(stat, flags, rusage)
+#else
+    // other Unices: assume have wait4(), although it's not standard (but
+    // Linux and FreeBSD do have it)
+    #define wxWait4(pid, stat, flags, rusage) wait4(pid, stat, flags, rusage)
+#endif // wait4()
 
 //------------------------------------------------------------------------
 // misc.
@@ -270,18 +282,8 @@ static void GTK_EndProcessDetector(gpointer data, gint source,
 
     pid = (proc_data->pid > 0) ? proc_data->pid : -(proc_data->pid);
 
-    /* wait4 is not part of any standard, use at own risk
+    int status = 0;
-     * not sure what wait4 does, but wait3 seems to be closest, whats a digit ;-)
+    wxWait4(pid, &status, 0, (rusage *) NULL);
-     * --- offer@sgi.com */
-    // VZ: wait4() will be woken up by a signal, not wait3 - so it's quite
-    //     different (also, wait3() waits for any child, wait4() only for this
-    //     one)
-    int status = -1;
-#if !defined(__sgi)
-    wait4(pid, &status, 0, (rusage *) NULL);
-#else
-    wait3(&status, 0, (rusage *) NULL);
-#endif
 
     close(source);
     gdk_input_remove(proc_data->tag);