diff --git a/Jamshared b/Jamshared
index 13db835..fd42928 100644
--- a/Jamshared
+++ b/Jamshared
@@ -79,7 +79,7 @@ if $(OS) = MACOSX
 {
     actions together SharedLink bind NEEDLIBS
     {
-        $(LINK) -headerpad_max_install_names $(FRAMEWORKS) $(MAINARCH) $(ALTARCH) -dynamiclib $(SHRLINKFLAGS) -install_name @executable_path/$(<:D=) -o $(<) $(>) $(NEEDLIBS) $(SHRLINKLIBS)
+        $(LINK) $(FRAMEWORKS) $(MAINARCH) $(ALTARCH) -dynamiclib $(SHRLINKFLAGS) -install_name @executable_path/$(<:D=) -o $(<) $(>) $(NEEDLIBS) $(SHRLINKLIBS)
     }
 }
 else
diff --git a/tads/Jamfile b/tads/Jamfile
index 1f8829d..d8455eb 100644
--- a/tads/Jamfile
+++ b/tads/Jamfile
@@ -33,8 +33,8 @@ if $(OS) = LINUX || $(OS) = SOLARIS
 
 if $(OS) = MACOSX
 {
-    SubDirCcFlags -headerpad_max_install_names $(MAINARCH) $(ALTARCH) ;
-    LINKFLAGS = -headerpad_max_install_names $(MAINARCH) $(ALTARCH) ;
+    SubDirCcFlags $(MAINARCH) $(ALTARCH) ;
+    LINKFLAGS = $(MAINARCH) $(ALTARCH) ;
 }
 
 SEARCH_SOURCE =
diff --git a/tads/tads3/vmtz.cpp b/tads/tads3/vmtz.cpp
index 5e193a1..dce46f7 100644
--- a/tads/tads3/vmtz.cpp
+++ b/tads/tads3/vmtz.cpp
@@ -1985,5 +1985,5 @@ void CVmTimeZone::query(vmtzquery *result, int32_t dayno, int32_t daytime,
              *   up until that moment
              */
-            result->set(tcur > 0 ? tcur - 1 : tcur);
+            result->set(tcur != 0 ? tcur - 1 : tcur);
            return;
        }
diff --git a/terps/Jamfile b/terps/Jamfile
index b5f6d52..2d1ccdb 100644
--- a/terps/Jamfile
+++ b/terps/Jamfile
@@ -185,8 +185,8 @@ if $(MAKE_GEAS) = yes
 
     if $(OS) = MACOSX
     {
-        SubDirCcFlags -headerpad_max_install_names $(MAINARCH) $(ALTARCH) ;
-        LINKFLAGS = -headerpad_max_install_names $(MAINARCH) $(ALTARCH) ;
+        SubDirCcFlags $(MAINARCH) $(ALTARCH) ;
+        LINKFLAGS = $(MAINARCH) $(ALTARCH) ;
     }
 
     SUBDIRC++FLAGS = $(SUBDIRCCFLAGS) ;