diff --git a/adm/genconf.tcl b/adm/genconf.tcl
index 235625e97f..9f3a6aa1c9 100644
--- a/adm/genconf.tcl
+++ b/adm/genconf.tcl
@@ -522,8 +522,10 @@ grid .myFrame.myChecks.myFImageCheck   -row $aCheckRowIter -column 0 -sticky e
 grid .myFrame.myChecks.myFImageLbl     -row $aCheckRowIter -column 1 -sticky w
 grid .myFrame.myChecks.myTbbCheck      -row $aCheckRowIter -column 2 -sticky e
 grid .myFrame.myChecks.myTbbLbl        -row $aCheckRowIter -column 3 -sticky w
-grid .myFrame.myChecks.myGlesCheck     -row $aCheckRowIter -column 4 -sticky e
-grid .myFrame.myChecks.myGlesLbl       -row $aCheckRowIter -column 5 -sticky w
+if { "$::tcl_platform(os)" != "Darwin" } {
+  grid .myFrame.myChecks.myGlesCheck     -row $aCheckRowIter -column 4 -sticky e
+  grid .myFrame.myChecks.myGlesLbl       -row $aCheckRowIter -column 5 -sticky w
+}
 #grid .myFrame.myChecks.myOpenClCheck   -row $aCheckRowIter -column 6 -sticky e
 #grid .myFrame.myChecks.myOpenClLbl     -row $aCheckRowIter -column 7 -sticky w
 grid .myFrame.myChecks.myZLibCheck     -row $aCheckRowIter -column 6 -sticky e
diff --git a/adm/genproj.tcl b/adm/genproj.tcl
index 840faf7128..cf4de4e5ac 100644
--- a/adm/genproj.tcl
+++ b/adm/genproj.tcl
@@ -3061,12 +3061,12 @@ proc osutils:xcdtk { theOutDir theToolKit theGuidsMap theIsStatic thePlatform {t
   if { "$thePlatform" == "ios" } {
     puts $aPbxprojFile "\t\t\t\t\"ARCHS\[sdk=iphoneos\*\]\" = \"\$(ARCHS_STANDARD)\";";
     puts $aPbxprojFile "\t\t\t\t\"ARCHS\[sdk=iphonesimulator\*\]\" = \"x86_64\";";
-    puts $aPbxprojFile "\t\t\t\tCLANG_CXX_LIBRARY = \"libc++\";"
     puts $aPbxprojFile "\t\t\t\tCLANG_ENABLE_MODULES = YES;"
     puts $aPbxprojFile "\t\t\t\tCLANG_ENABLE_OBJC_ARC = YES;"
   }
   puts $aPbxprojFile "\t\t\t\tARCHS = \"\$(ARCHS_STANDARD_64_BIT)\";"
-  puts $aPbxprojFile "\t\t\t\tCLANG_CXX_LANGUAGE_STANDARD = \"gnu++0x\";"
+  puts $aPbxprojFile "\t\t\t\tCLANG_CXX_LIBRARY = \"libc++\";"
+  puts $aPbxprojFile "\t\t\t\tCLANG_CXX_LANGUAGE_STANDARD = \"c++0x\";"
   puts $aPbxprojFile "\t\t\t\tCOPY_PHASE_STRIP = NO;"
   puts $aPbxprojFile "\t\t\t\tGCC_C_LANGUAGE_STANDARD = gnu99;"
   puts $aPbxprojFile "\t\t\t\tGCC_DYNAMIC_NO_PIC = NO;"
@@ -3104,12 +3104,12 @@ proc osutils:xcdtk { theOutDir theToolKit theGuidsMap theIsStatic thePlatform {t
   if { "$thePlatform" == "ios" } {
     puts $aPbxprojFile "\t\t\t\t\"ARCHS\[sdk=iphoneos\*\]\" = \"\$(ARCHS_STANDARD)\";";
     puts $aPbxprojFile "\t\t\t\t\"ARCHS\[sdk=iphonesimulator\*\]\" = \"x86_64\";";
-    puts $aPbxprojFile "\t\t\t\tCLANG_CXX_LIBRARY = \"libc++\";"
     puts $aPbxprojFile "\t\t\t\tCLANG_ENABLE_MODULES = YES;"
     puts $aPbxprojFile "\t\t\t\tCLANG_ENABLE_OBJC_ARC = YES;"
   }
   puts $aPbxprojFile "\t\t\t\tARCHS = \"\$(ARCHS_STANDARD_64_BIT)\";"
-  puts $aPbxprojFile "\t\t\t\tCLANG_CXX_LANGUAGE_STANDARD = \"gnu++0x\";"
+  puts $aPbxprojFile "\t\t\t\tCLANG_CXX_LIBRARY = \"libc++\";"
+  puts $aPbxprojFile "\t\t\t\tCLANG_CXX_LANGUAGE_STANDARD = \"c++0x\";"
   puts $aPbxprojFile "\t\t\t\tCOPY_PHASE_STRIP = YES;"
   puts $aPbxprojFile "\t\t\t\tGCC_C_LANGUAGE_STANDARD = gnu99;"
   puts $aPbxprojFile "\t\t\t\tGCC_ENABLE_OBJC_EXCEPTIONS = YES;"