3 files changed, 17 insertions, 2 deletions
diff --git a/.SRCINFO b/.SRCINFO
index e5a1bf48ec08..e71b3d347b25 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -21,7 +21,9 @@ pkgbase = casync-git
 	provides = casync
 	conflicts = casync
 	source = casync-git::git+https://github.com/systemd/casync
+	source = renameat2-test-fix.patch
 	sha256sums = SKIP
+	sha256sums = 3fb0fc4965039d0fc5b51c8fe49bb7ad74108324ff921c6f5b74127036c28d51
 
 pkgname = casync-git
 
diff --git a/PKGBUILD b/PKGBUILD
index ba111380cfbf..6c9c4af1e2a1 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -12,8 +12,9 @@ optdepends=()
 checkdepends=('rsync')
 provides=('casync')
 conflicts=('casync')
-source=("$pkgname::git+$url")
-sha256sums=('SKIP')
+source=("$pkgname::git+$url" 'renameat2-test-fix.patch')
+sha256sums=('SKIP'
+            '3fb0fc4965039d0fc5b51c8fe49bb7ad74108324ff921c6f5b74127036c28d51')
 
 pkgver() {
   cd "$pkgname"
@@ -23,6 +24,11 @@ pkgver() {
   )
 }
 
+prepare() {
+  cd "$srcdir/$pkgname"
+  patch -p1 -i "$srcdir/renameat2-test-fix.patch"
+}
+
 build() {
   cd "$srcdir/$pkgname"
   arch-meson build/ -Dselinux=false
diff --git a/renameat2-test-fix.patch b/renameat2-test-fix.patch
new file mode 100644
index 000000000000..8022869578b9
--- /dev/null
+++ b/renameat2-test-fix.patch
@@ -0,0 +1,7 @@
+diff --git a/meson.build b/meson.build
+index f42ed16..c0f741e 100644
+--- a/meson.build
++++ b/meson.build
+@@ -81 +81 @@ foreach ident : [
+-        have = cc.has_function(ident[0], prefix : ident[1])
++        have = cc.has_function(ident[0], args : '-D_GNU_SOURCE', prefix : ident[1])