From b1878fe099f6cd834bc5e43023746a1357034147 Mon Sep 17 00:00:00 2001
From: YAMAMOTO Takashi <yamamoto@midokura.com>
Date: Fri, 23 Oct 2020 09:33:36 +0900
Subject: [PATCH] libcxx: Don't remove the downloaded file eagerly

It's convenient during development.
Also, it can be useful for offline builds.
---
 libs/libxx/.gitignore  | 1 +
 libs/libxx/libcxx.defs | 6 ++++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/libs/libxx/.gitignore b/libs/libxx/.gitignore
index 94aaae4d8e9..bdb8fd80b15 100644
--- a/libs/libxx/.gitignore
+++ b/libs/libxx/.gitignore
@@ -1,2 +1,3 @@
 /uClibc++
 /libcxx
+/libcxx-*.src.tar.xz
diff --git a/libs/libxx/libcxx.defs b/libs/libxx/libcxx.defs
index b46e0a1aca4..447b7c55e42 100644
--- a/libs/libxx/libcxx.defs
+++ b/libs/libxx/libcxx.defs
@@ -20,10 +20,11 @@
 
 VERSION=11.0.0
 
-libcxx:
+libcxx-$(VERSION).src.tar.xz:
 	$(Q) wget https://github.com/llvm/llvm-project/releases/download/llvmorg-$(VERSION)/libcxx-$(VERSION).src.tar.xz
+
+libcxx: libcxx-$(VERSION).src.tar.xz
 	$(Q) tar -xf libcxx-$(VERSION).src.tar.xz
-	$(Q) $(DELFILE) libcxx-$(VERSION).src.tar.xz
 	$(Q) mv libcxx-$(VERSION).src libcxx
 	$(Q) patch -p0 < 0001-libc-Fix-a-few-warnings.patch
 	$(Q) patch -p0 < 0001-libc-NFC-Fix-several-GCC-warnings-in-the-test-suite.patch
@@ -38,6 +39,7 @@ $(TOPDIR)/include/libcxx: libcxx
 dirlinks:: $(TOPDIR)/include/libcxx
 
 distclean::
+	$(Q) $(DELFILE) libcxx-$(VERSION).src.tar.xz
 	$(Q) $(DIRUNLINK) $(TOPDIR)/include/libcxx
 	$(call DELDIR, libcxx)