diff --git a/systemc/fix-riscv64.patch b/systemc/fix-riscv64.patch
deleted file mode 100644
index 06a9dd086..000000000
--- a/systemc/fix-riscv64.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- systemc-2.3.3/src/sysc/datatypes/int/sc_nbdefs.h.orig	2021-10-30 01:09:47.566122411 +0000
-+++ systemc-2.3.3/src/sysc/datatypes/int/sc_nbdefs.h	2021-10-30 01:09:52.989456035 +0000
-@@ -177,7 +177,7 @@ typedef unsigned int sc_digit;	// 32-bit
- // Support for the long long type. This type is not in the standard
- // but is usually supported by compilers.
- #ifndef _WIN32
--#   if defined(__x86_64__) || defined(__aarch64__)
-+#   if defined(__x86_64__) || defined(__aarch64__) || (defined(__riscv) && __riscv_xlen == 64)
-         typedef long long          int64;
-         typedef unsigned long long uint64;
- #   else
diff --git a/systemc/riscv64.patch b/systemc/riscv64.patch
deleted file mode 100644
index 866f5b7fc..000000000
--- a/systemc/riscv64.patch
+++ /dev/null
@@ -1,22 +0,0 @@
-diff --git PKGBUILD PKGBUILD
-index 6a209ef..409938c 100644
---- PKGBUILD
-+++ PKGBUILD
-@@ -13,12 +13,15 @@ license=('Apache')
- depends=('gcc-libs')
- makedepends=('cmake' 'ninja')
- replaces=('systemc-cmake')
--source=("$pkgname-$pkgver.tar.gz::https://github.com/accellera-official/systemc/archive/$pkgver.tar.gz")
--sha512sums=('3ef4b5e9c05b8d03e856598ddc27ad50a0a39a7f9334cd00faefeacdf954b6527104d3238c4e8bfa88c00dc382f4da5a50efbd845fe0b6cc2f5a025c993deefd')
-+source=("$pkgname-$pkgver.tar.gz::https://github.com/accellera-official/systemc/archive/$pkgver.tar.gz"
-+        "fix-riscv64.patch")
-+sha512sums=('3ef4b5e9c05b8d03e856598ddc27ad50a0a39a7f9334cd00faefeacdf954b6527104d3238c4e8bfa88c00dc382f4da5a50efbd845fe0b6cc2f5a025c993deefd'
-+            '1cd832830167eb7b37fc2c0ba596f091da84a012837d8329e8e6d764085f317484483dbc7817d9affb0d0b611fc45b28a06ebeab52552bc87c488a5a2a2930e9')
-
- prepare() {
-   mkdir -p build
-   sed -i 's/set (CMAKE_BUILD_TYPE Release/set (CMAKE_BUILD_TYPE ""/' $pkgname-$pkgver/CMakeLists.txt
-+  patch -Np1 < $srcdir/fix-riscv64.patch -d $pkgname-$pkgver
- }
-
- build() {