diff --git a/polymer/eduke32/build/Makefile b/polymer/eduke32/build/Makefile
index 660f25754..88c367fd9 100644
--- a/polymer/eduke32/build/Makefile
+++ b/polymer/eduke32/build/Makefile
@@ -356,7 +356,7 @@ $(OBJ)/%.$o: $(RSRC)/%.c
 
 libcache1d.so: $(SRC)/cache1d.c
 	$(COMPILE_STATUS)
-	if $(COMPILER) -Wall -Wextra -DCACHE1D_COMPRESS_ONLY -shared $< -o $@; then $(COMPILE_OK); else $(COMPILE_FAILED); fi
+	if $(COMPILER) -Wall -Wextra -DCACHE1D_COMPRESS_ONLY -shared -fPIC $< -o $@; then $(COMPILE_OK); else $(COMPILE_FAILED); fi
 
 $(OBJ)/editor_banner.$o: $(RSRC)/editor_banner.c
 	echo "#include <gdk-pixbuf/gdk-pixdata.h>" > $@
diff --git a/polymer/eduke32/build/src/cache1d.c b/polymer/eduke32/build/src/cache1d.c
index 8fd9f8bce..08379e8c0 100644
--- a/polymer/eduke32/build/src/cache1d.c
+++ b/polymer/eduke32/build/src/cache1d.c
@@ -13,6 +13,7 @@
 # include <stdio.h>
 # include <string.h>
 # include <stddef.h>
+# include <assert.h>
 
 # define BFILE FILE
 # define C1D_STATIC
@@ -20,6 +21,7 @@
 # define B_LITTLE32(x) (x)
 # define Bmemset memset
 # define Bmemcpy memcpy
+# define Bassert assert
 # define bsize_t size_t
 #else
 // cache1d.o for EDuke32