diff --git a/package.mask/all b/package.mask/all
index 98f99d0..08a3d0f 100644
--- a/package.mask/all
+++ b/package.mask/all
@@ -11,6 +11,18 @@
 >=dev-scheme/guile-2.2
 =dev-util/bindgen-0.70.1-r1
 >=dev-util/ccache-4.10
+>=llvm-core/llvm-19
+>=llvm-core/llvm-toolchain-symlinks-19
+>=llvm-core/llvmgold-19
+>=llvm-core/llvm-common-19
+>=llvm-core/clang-19
+>=llvm-core/clang-toolchain-symlinks-19
+>=llvm-core/clang-common-19
+>=llvm-core/clang-runtime-19
+>=llvm-core/libclc-19
+>=llvm-runtimes/compiler-rt-19
+>=llvm-runtimes/compiler-rt-sanitizers-19
+>=llvm-runtimes/openmp-19
 >=mail-client/thunderbird-bin-129
 >media-fonts/noto-20170403
 >=net-analyzer/wireshark-4.4
@@ -25,3 +37,4 @@
 >=virtual/jre-17
 >=www-client/firefox-bin-129
 >www-client/opera-13
+