From c362651f62627e6b52da741d7e84b1312650d786 Mon Sep 17 00:00:00 2001
From: Andreas Baumann <mail@andreasbaumann.cc>
Date: Wed, 7 Nov 2018 08:22:46 +0100
Subject: core/systemd: added LZ4 test patch (FS#60239)

---
 core/systemd/PKGBUILD                        | 11 ++++++++++
 core/systemd/lz4-test-compress-partial.patch | 31 ++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 core/systemd/PKGBUILD
 create mode 100644 core/systemd/lz4-test-compress-partial.patch

diff --git a/core/systemd/PKGBUILD b/core/systemd/PKGBUILD
new file mode 100644
index 00000000..be057de8
--- /dev/null
+++ b/core/systemd/PKGBUILD
@@ -0,0 +1,11 @@
+# LZ4 test fails, see upstream FS#60239
+
+source+=(lz4-test-compress-partial.patch)
+sha512sums+=('afc199c8d091c1b87fa0719b82bb29ff32595d51034127d1a8c7f83f539f52d0d8a4fa90cf22e286bf3e9104603ecfc9275c3527b9adc2d05d9bcb9234e3c208')
+
+eval "$(
+  declare -f prepare | \
+    sed '
+      /patch.*/a patch -Np1 -i ../lz4-test-compress-partial.patch
+    '
+)"
diff --git a/core/systemd/lz4-test-compress-partial.patch b/core/systemd/lz4-test-compress-partial.patch
new file mode 100644
index 00000000..421e186f
--- /dev/null
+++ b/core/systemd/lz4-test-compress-partial.patch
@@ -0,0 +1,31 @@
+diff --git a/meson.build b/meson.build
+index 554e67e5dd..3636a0ff8c 100644
+--- a/meson.build
++++ b/meson.build
+@@ -1084,6 +1084,7 @@ conf.set10('HAVE_XZ', have)
+ want_lz4 = get_option('lz4')
+ if want_lz4 != 'false' and not fuzzer_build
+         liblz4 = dependency('liblz4',
++                            version : '>= 1.8.3',
+                             required : want_lz4 == 'true')
+         have = liblz4.found()
+ else
+diff --git a/src/journal/test-compress.c b/src/journal/test-compress.c
+index 7addf318d6..fb0db190b2 100644
+--- a/src/journal/test-compress.c
++++ b/src/journal/test-compress.c
+@@ -227,13 +227,10 @@ static void test_lz4_decompress_partial(void) {
+         assert_se(r >= 0);
+         log_info("Decompressed partial %i/%i → %i", 12, HUGE_SIZE, r);
+ 
+-        /* We expect this to fail, because that's how current lz4 works. If this
+-         * call succeeds, then lz4 has been fixed, and we need to change our code.
+-         */
+         r = LZ4_decompress_safe_partial(buf, huge,
+                                         compressed,
+                                         12, HUGE_SIZE-1);
+-        assert_se(r < 0);
++        assert_se(r >= 0);
+         log_info("Decompressed partial %i/%i → %i", 12, HUGE_SIZE-1, r);
+ }
+ #endif
-- 
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