X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=chiark-tcl.git;a=blobdiff_plain;f=Makefile;h=446e5554e3356fd44d2631b1f64d19d22745ae5d;hp=9e7377687ba67605bba184b6320ccad310e23815;hb=ad5a0a08e95b6be5a2b1fcb20fd5f0dd74fdd8c6;hpb=2aaa6d9084b8a950151d64b4fe7a483be59b5722

diff --git a/Makefile b/Makefile
index 9e73776..446e555 100644
--- a/Makefile
+++ b/Makefile
@@ -6,3 +6,22 @@ default: all
 
 clean all:
 	set -e; for d in $(SUBDIRS); do $(MAKE) -C $$d $@; done
+
+# To find undefined symbols when implementing, for example:
+#
+# liberator:cdb> ld /usr/bin/tclsh8.3 ../base/chiark-tcl.so ../hbytes/chiark_tcl_hbytes.so ../cdb/chiark_tcl_cdb.so -ltcl8.3
+# ld: warning: cannot find entry symbol _start; defaulting to 00000000080486ac
+# ../cdb/chiark_tcl_cdb.so: undefined reference to `cht_do_cdbwr_delete'
+# ../cdb/chiark_tcl_cdb.so: undefined reference to `cht_do_cdbwr_lookup_hb'
+# ../cdb/chiark_tcl_cdb.so: undefined reference to `cht_do_cdbwr_open_okjunk'
+# ../cdb/chiark_tcl_cdb.so: undefined reference to `cht_do_cdb_lookup_hb'
+# ../cdb/chiark_tcl_cdb.so: undefined reference to `cht_do_cdbwr_lookup'
+# ../cdb/chiark_tcl_cdb.so: undefined reference to `cht_do_cdb_close'
+# ../cdb/chiark_tcl_cdb.so: undefined reference to `cht_do_cdb_lookup'
+# ../cdb/chiark_tcl_cdb.so: undefined reference to `cht_do_cdbtoplevel_cdb'
+# ../cdb/chiark_tcl_cdb.so: undefined reference to `cht_do_cdbwr_update_hb'
+# ../cdb/chiark_tcl_cdb.so: undefined reference to `cht_do_cdb_open'
+# ../cdb/chiark_tcl_cdb.so: undefined reference to `cht_do_cdbwr_update'
+# ../cdb/chiark_tcl_cdb.so: undefined reference to `cht_do_cdbtoplevel_cdb_wr'
+# Segmentation fault
+# liberator:cdb>