https://bugs.gentoo.org/604242
Do not add -g to the user's CFLAGS.

--- motif-2.3.6-orig/configure.ac
+++ motif-2.3.6/configure.ac
@@ -158,7 +158,7 @@
 
 if test x$GCC = xyes
 then
-    CFLAGS="$CFLAGS -Wall -g -fno-strict-aliasing -Wno-unused -Wno-comment"
+    CFLAGS="$CFLAGS -Wall -fno-strict-aliasing -Wno-unused -Wno-comment"
     if test ` $CC -dumpversion | sed -e 's/\(^.\).*/\1/'` = "4" ; then
         CFLAGS="$CFLAGS -fno-tree-ter"
     fi