With libtool generating shared and static version of libraries needs -fPIC flags
without this it will not generate the commands to create shared linked library
Its more enforced by libtool 2.4. I have not checked it with older libtool
libiconv 1.11.x is relatively old release and libtool 2.4 did not exist when it
was released these kind of problem are more likely

Upstream-Status: Pending

Signed-off-by: Khem Raj <raj.khem@gmail.com>

Index: libiconv-1.11.1/lib/Makefile.in
===================================================================
--- libiconv-1.11.1.orig/lib/Makefile.in
+++ libiconv-1.11.1/lib/Makefile.in
@@ -70,9 +70,9 @@ preloadable_libiconv.so : preloadable_li
 
 preloadable_libiconv_linux.so : $(SOURCES)
 	if test -n "@GCC@"; then \
-	  $(LIBTOOL_LINK) $(CC) $(LDFLAGS) $(INCLUDES) $(CFLAGS) $(CPPFLAGS) $(DEFS) -fPIC -DPIC -DLIBICONV_PLUG $(SOURCES) -shared -o preloadable_libiconv_linux.so; \
+	  $(LIBTOOL_LINK) $(CC) $(LDFLAGS) $(INCLUDES) $(CFLAGS) $(CPPFLAGS) $(DEFS) -fPIC -DPIC -DLIBICONV_PLUG $(SOURCES) -rpath $(libdir) -o libpreload_iconv.la && cp .libs/libpreload_iconv.so preloadable_libiconv_linux.so; \
 	else \
-	  $(LIBTOOL_LINK) $(CC) $(LDFLAGS) $(INCLUDES) $(CFLAGS) $(CPPFLAGS) $(DEFS) -KPIC -DPIC -DLIBICONV_PLUG $(SOURCES) -shared -o preloadable_libiconv_linux.so; \
+	  $(LIBTOOL_LINK) $(CC) $(LDFLAGS) $(INCLUDES) $(CFLAGS) $(CPPFLAGS) $(DEFS) -KPIC -DPIC -DLIBICONV_PLUG $(SOURCES) -rpath $(libdir) -o libpreload_iconv.la && cp .libs/libpreload_iconv.so preloadable_libiconv_linux.so; \
 	fi
 
 preloadable_libiconv_solaris.so : $(SOURCES)