diff --git a/cde/lib/tt/lib/api/c/Imakefile b/cde/lib/tt/lib/api/c/Imakefile
index 76b821eb4..7488a2688 100644
--- a/cde/lib/tt/lib/api/c/Imakefile
+++ b/cde/lib/tt/lib/api/c/Imakefile
@@ -21,6 +21,10 @@ DEPEND_DEFINES = $(CXXDEPENDINCLUDES)
 DEFINES = 
 INCLUDES = -I../../../lib
 
+#if defined(LinuxDistribution)
+CXXEXTRA_DEFINES = -fpermissive
+#endif
+
 /*** NOTE! 
  *** Every time a .o is added below it needs to be added to
  *** the lib/tt/lib Imakefile in OBJS and SHARED_OBJS
diff --git a/cde/lib/tt/lib/tttk/Imakefile b/cde/lib/tt/lib/tttk/Imakefile
index f2d16884d..8001eb38c 100644
--- a/cde/lib/tt/lib/tttk/Imakefile
+++ b/cde/lib/tt/lib/tttk/Imakefile
@@ -21,6 +21,9 @@ DEPEND_DEFINES = $(CXXDEPENDINCLUDES)
 DEFINES =
 INCLUDES = -I../../lib
 
+#if defined(LinuxDistribution)
+CXXEXTRA_DEFINES = -fpermissive
+#endif
 
 /*** NOTE!
  *** Every time a .o is added below it needs to be added to