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-rw-r--r--doc/HISTORY3
-rw-r--r--editor/Makefile7
2 files changed, 9 insertions, 1 deletions
diff --git a/doc/HISTORY b/doc/HISTORY
index e833ad00..4c04076b 100644
--- a/doc/HISTORY
+++ b/doc/HISTORY
@@ -31,6 +31,9 @@ not yet  BJH  Release 11.00.00
               pnmmargin: fix shell injection vulnerability.  Always broken
               (Program was added in primordial Netpbm in 1990).
 
+              build: Create backward compatibility symbolic link for
+              pnminterp-gen, missing for over 20 years.
+
 22.06.24 BJH  Release 10.99.00
 
               Add pamrestack.
diff --git a/editor/Makefile b/editor/Makefile
index 3fe8cb05..0027832c 100644
--- a/editor/Makefile
+++ b/editor/Makefile
@@ -64,10 +64,15 @@ install.bin install.merge: install.bin.local
 .PHONY: install.bin.local
 install.bin.local: $(PKGDIR)/bin
 # Remember that $(SYMLINK) might just be a copy command.
-# backward compatibility: program used to be pnminterp
+
+# In December 2001, pamstretch replaced pnminterp and pamstretch-getn
+# replaced pnminterp-gen
 	cd $(PKGDIR)/bin ; \
 	rm -f pnminterp$(EXE); \
 	$(SYMLINK) pamstretch$(EXE) pnminterp$(EXE)
+	cd $(PKGDIR)/bin ; \
+	rm -f pnminterp-gen$(EXE); \
+	$(SYMLINK) pamstretch-gen$(EXE) pnminterp-gen$(EXE)
 # In March 2002, pnmnorm replaced ppmnorm and pgmnorm
 	cd $(PKGDIR)/bin ; \
 	rm -f ppmnorm$(EXE) ; \