Index: Makefile.in
==================================================================
--- Makefile.in
+++ Makefile.in
@@ -35,41 +35,41 @@
 OBJS = libconfig.o conf_space.o conf_section.o conf_apache.o conf_colon.o conf_equal.o conf_xml.o @LIBOBJS@
 SHOBJS = libconfig_shr.o conf_space_shr.o conf_section_shr.o conf_apache_shr.o conf_colon_shr.o conf_equal_shr.o conf_xml_shr.o @SHLIBOBJS@
 
 all: $(LIBS) $(BINS)
 
-libconfig.$(SHOBJEXT): $(SHOBJS) libconfig.vers libconfig.syms
+libconfig.$(SHOBJEXT): $(SHOBJS) $(srcdir)/libconfig.vers libconfig.syms
 	$(CC) $(CPPFLAGS) $(CFLAGS) $(SHOBJFLAGS) $(SHOBJLDFLAGS) -o $@ $(SHOBJS) $(LDFLAGS)
 	-@WEAKENSYMS@ libconfig.$(SHOBJEXT)
 	-@REMOVESYMS@ libconfig.$(SHOBJEXT)
 
 libconfig.$(AREXT): $(OBJS)
 	$(AR) rcu $@ $(OBJS)
 	-$(RANLIB) $@
 
-libconfig.o: $(srcdir)/libconfig.c $(srcdir)/compat.h $(srcdir)/win32.h $(srcdir)/config.h libconfig.h
-libconfig_shr.o: $(srcdir)/libconfig.c $(srcdir)/compat.h $(srcdir)/win32.h $(srcdir)/config.h libconfig.h
+libconfig.o: $(srcdir)/libconfig.c $(srcdir)/compat.h $(srcdir)/win32.h $(srcdir)/config.h $(srcdir)/libconfig.h
+libconfig_shr.o: $(srcdir)/libconfig.c $(srcdir)/compat.h $(srcdir)/win32.h $(srcdir)/config.h $(srcdir)/libconfig.h
 
 %_shr.o: $(srcdir)/%.c
 	$(CC) $(CPPFLAGS) $(CFLAGS) $(SHOBJFLAGS) -c -o $@ "$(filter %.c, $^)"
 
 %.o: $(srcdir)/%.c
 	$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ "$(filter %.c, $^)"
 
-libconfig.vers: libconfig.syms.in
-	rm -f libconfig.vers
+$(srcdir)/libconfig.vers: $(srcdir)/libconfig.syms.in
+	rm -f $(srcdir)/libconfig.vers
 	echo 'LIBCONFIG_0.3.0 {' > '$@'
 	echo '	global:' >> '$@'
-	cat libconfig.syms.in | sed 's/^@SYMPREFIX@//;s/^/		/;s/$$/;/' >> '$@'
+	cat '$(srcdir)/libconfig.syms.in' | sed 's/^@''SYMPREFIX@//;s/^/		/;s/$$/;/' >> '$@'
 	echo '	local:' >> '$@'
 	echo '		*;' >> '$@'
 	echo '};' >> '$@'
 
 test-lc$(EXEEXT): $(LIBS) $(srcdir)/test-lc.c
-	$(CC) $(CPPFLAGS) $(CFLAGS) -o $@ $(filter %.c, $^) $(LDFLAGS) -Wl,-R -Wl,. -L. -lconfig
+	$(CC) $(CPPFLAGS) $(CFLAGS) -o $@ $(filter %.c, $^) $(LDFLAGS) -Wl,-R -Wl,$(srcdir) -L$(srcdir) -lconfig
 
-install: all libconfig.h
+install: all $(srcdir)/libconfig.h
 	-$(INSTALL) -d "$(DESTDIR)$(mandir)"
 	-$(INSTALL) -d "$(DESTDIR)$(mandir)/man3"
 	-$(INSTALL) -d "$(DESTDIR)$(libdir)"
 	-$(INSTALL) -d "$(DESTDIR)$(includedir)"
 	-$(INSTALL) -m 644 libconfig.$(SHOBJEXT).def "$(DESTDIR)$(libdir)/libconfig.def"
@@ -84,11 +84,11 @@
 	$(INSTALL) -m 644 lc_seterrstr.3 "$(DESTDIR)$(mandir)/man3/lc_seterrstr.3"
 	$(INSTALL) -m 644 lc_geterrno.3 "$(DESTDIR)$(mandir)/man3/lc_geterrno.3"
 	$(INSTALL) -m 644 lc_process.3 "$(DESTDIR)$(mandir)/man3/lc_process.3"
 	$(INSTALL) -m 644 lc_cleanup.3 "$(DESTDIR)$(mandir)/man3/lc_cleanup.3"
 	$(INSTALL) -m 644 libconfig.3 "$(DESTDIR)$(mandir)/man3/libconfig.3"
-	$(INSTALL) -m 644 libconfig.h "$(DESTDIR)$(includedir)/libconfig.h"
+	$(INSTALL) -m 644 $(srcdir)/libconfig.h "$(DESTDIR)$(includedir)/libconfig.h"
 	-( cd "$(DESTDIR)$(libdir)" && rm -f libconfig.$(SHOBJEXT).$(PKGVERSMAJOR) && $(LN_S) libconfig.$(SHOBJEXT).$(PKGVERS) libconfig.$(SHOBJEXT).$(PKGVERSMAJOR) )
 	-( cd "$(DESTDIR)$(libdir)" && rm -f libconfig.$(SHOBJEXT) && $(LN_S) libconfig.$(SHOBJEXT).$(PKGVERS) libconfig.$(SHOBJEXT) )
 
 clean:
 	rm -f *.o $(BINS) $(LIBS) *~ test-lc$(EXEEXT) *.dll.a *.dll.def *.dll

Index: build/prep.sh
==================================================================
--- build/prep.sh
+++ build/prep.sh
@@ -23,13 +23,13 @@
 automake -fca
 
 rm -rf autom4te.cache
 
 rm -f libconfig.vers
-make -f Makefile.in libconfig.vers
+make srcdir=. -f Makefile.in ./libconfig.vers
 
 # Add Linux/MUSL support if missing
 if ! grep '[-]musl' config.sub >/dev/null 2>/dev/null; then
 	sed 's@\(-*\)linux-gnu\* @\1linux-musl | &@g' config.sub > config.sub.new
 	cat config.sub.new > config.sub
 	rm -f config.sub.new
 fi

Index: configure.ac
==================================================================
--- configure.ac
+++ configure.ac
@@ -38,14 +38,14 @@
 
 AC_REPLACE_FUNCS(strsep strtoll getuid)
 AC_CHECK_FUNCS(getpwuid strtof)
 
 dnl Setup stable API
-DC_SETUP_STABLE_API(libconfig.vers, libconfig.syms)
+DC_SETUP_STABLE_API([${srcdir}/libconfig.vers], libconfig.syms)
 
 dnl Set a soname
 SHOBJ_SET_SONAME([libconfig.$SHOBJEXT.$PACKAGE_VERSION])
 
 dnl This MUST be last.
 DC_SYNC_SHLIBOBJS
 
 AC_OUTPUT(Makefile lc_geterrno.3 lc_process.3 lc_register_var.3 lc_geterrstr.3 lc_seterrstr.3 lc_register_callback.3 lc_cleanup.3 lc_process_file.3 libconfig.3 lc_handle_type.3 libconfig.syms)