use -R instead of -Wl,-rpath with Sun CC under Linux too

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@46643 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

configure.in

@@ -4132,6 +4132,11 @@ if test "$wxUSE_SHARED" = "yes"; then
     dnl use versioned symbols if available on the platform
     WX_VERSIONED_SYMBOLS([\$(wx_top_builddir)/version-script])
 
+    dnl test for Sun CC which can be used under both Solaris and Linux
+    if test "x$SUNCXX" = xyes; then
+        SAMPLES_RPATH_FLAG="-R\$(wx_top_builddir)/lib"
+        WXCONFIG_RPATH="-R\$libdir"
+    else
     case "${host}" in
       *-*-linux* | *-*-gnu* )
         SAMPLES_RPATH_FLAG="-Wl,-rpath,\$(wx_top_builddir)/lib"
@@ -4139,7 +4144,9 @@ if test "$wxUSE_SHARED" = "yes"; then
         ;;
 
       *-*-solaris2* )
-        if test "$GCC" = yes ; then
+        dnl here we know that Sun CC is not used as we tested for it above,
+        dnl hence we must be using gcc
+
         dnl newer versions of gcc need -isystem to compile X headers on
         dnl Solaris (which use old style C syntax)
         CPPFLAGS="-isystem /usr/openwin/include $CPPFLAGS"
@@ -4170,10 +4177,6 @@ if test "$wxUSE_SHARED" = "yes"; then
                     ])
             ])
         LDFLAGS="$saveLdflags"
-        else
-            SAMPLES_RPATH_FLAG="-R\$(wx_top_builddir)/lib"
-            WXCONFIG_RPATH="-R\$libdir"
-        fi
       ;;
 
       *-*-darwin* )
@@ -4205,6 +4208,7 @@ EOF
         ;;
 
     esac
+    fi
 
     if test $wxUSE_RPATH = "no"; then
         SAMPLES_RPATH_FLAG=''
@@ -5262,6 +5266,10 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
       dnl wouldn't be found by it
       AC_CACHE_CHECK([for pthread_cleanup_push/pop], wx_cv_func_pthread_cleanup,
       [
+        dnl C compiler may treat pthread_cleanup_push() as an undeclared
+        dnl function and not give a warning even if it's unavailable, so use
+        dnl the C++ one for this test
+        AC_LANG_PUSH(C++)
         AC_TRY_COMPILE([#include <pthread.h>
                void ThreadCleanupFunc(void *p);
             ],
@@ -5275,6 +5283,7 @@ if test "$TOOLKIT" != "MSW" -a "$USE_OS2" != 1; then
                wx_cv_func_pthread_cleanup=no
             ]
         )
+        AC_LANG_POP()
       ])
       if test "x$wx_cv_func_pthread_cleanup" = "xyes"; then
         AC_DEFINE(wxHAVE_PTHREAD_CLEANUP)