rust: make distcheck fixes

configure.ac

@@ -1965,9 +1965,6 @@
     AM_CONDITIONAL([HAVE_PDFLATEX], [test "x$enable_pdflatex" != "xno"])
 
 # Cargo/Rust.
-    dnl enable_rust="no"
-    dnl AC_ARG_ENABLE(rust, AS_HELP_STRING([--enable-rust], [Enable Rust]),
-    dnl     [enable_rust="$enableval"], [enable_rust=no])
     AC_ARG_ENABLE([rust], AS_HELP_STRING([--enable-rust], [Enable Experimental Rust support]))
 
     rust_vendor_comment="# "
@@ -2004,7 +2001,7 @@
             RUST_SURICATA_LIB="../rust/target/release/libsuricata.a"
           fi
           RUST_LDADD="${RUST_SURICATA_LIB} ${RUST_LDADD}"
-          CFLAGS="${CFLAGS} -I../rust/gen/c-headers"
+          CFLAGS="${CFLAGS} -I\${srcdir}/../rust/gen/c-headers"
           AC_SUBST(RUST_SURICATA_LIB)
           AC_SUBST(RUST_LDADD)
 	  AC_SUBST([CARGO], [$HAVE_CARGO])

rust/.cargo/config.in

@@ -5,4 +5,4 @@
 @rust_vendor_comment@replace-with = 'vendored-sources'
 @rust_vendor_comment@
 @rust_vendor_comment@[source.vendored-sources]
-@rust_vendor_comment@directory = './vendor'
+@rust_vendor_comment@directory = '@abs_top_srcdir@/rust/vendor'

rust/Makefile.am

@@ -27,8 +27,9 @@ endif
 
 all-local:
 if HAVE_PYTHON
-	cd $(top_srcdir)/rust && CARGO_TARGET_DIR=$(abs_builddir)/target \
+	cd $(top_srcdir)/rust && \
 		$(HAVE_PYTHON) ./gen-c-headers.py && \
+		CARGO_TARGET_DIR=$(abs_builddir)/target \
 		CARGO_HOME=$(CARGO_HOME) $(CARGO) build $(RELEASE) $(FROZEN) \
 			--features "$(FEATURES)"
 else
@@ -42,15 +43,14 @@ clean-local:
 		CARGO_HOME=$(CARGO_HOME) $(CARGO) clean
 
 distclean-local:
-	rm -rf vendor
+	rm -rf vendor gen Cargo.lock
-	rm -rf gen
 
 check:
 	cd $(top_srcdir)/rust && CARGO_TARGET_DIR=$(abs_builddir)/target \
 		CARGO_HOME=$(CARGO_HOME) $(CARGO) test
 
 Cargo.lock: Cargo.toml
-	CARGO_HOME=$(CARGO_HOME) $(CARGO) update
+	CARGO_HOME=$(CARGO_HOME) $(CARGO) generate-lockfile
 
 if HAVE_CARGO_VENDOR
 vendor: