diff --git a/.github/workflows/depends.yml b/.github/workflows/depends.yml
index aafb8e56a..c6d42f3fa 100644
--- a/.github/workflows/depends.yml
+++ b/.github/workflows/depends.yml
@@ -31,36 +31,47 @@ jobs:
         toolchain:
           - name: "RISCV 64bit"
             host: "riscv64-linux-gnu"
+            rust_host: "riscv64gc-unknown-linux-gnu"
             packages: "python3 gperf g++-riscv64-linux-gnu"
           - name: "ARM v7"
             host: "arm-linux-gnueabihf"
+            rust_host: "armv7-unknown-linux-gnueabihf"
             packages: "python3 gperf g++-arm-linux-gnueabihf"
           - name: "ARM v8"
             host: "aarch64-linux-gnu"
+            rust_host: "aarch64-unknown-linux-gnu"
             packages: "python3 gperf g++-aarch64-linux-gnu"
           - name: "i686 Win"
             host: "i686-w64-mingw32"
+            rust_host: "i686-pc-windows-gnu"
             packages: "python3 g++-mingw-w64-i686"
           - name: "i686 Linux"
             host: "i686-pc-linux-gnu"
+            rust_host: "i686-unknown-linux-gnu"
             packages: "gperf cmake g++-multilib python3-zmq"
           - name: "Win64"
             host: "x86_64-w64-mingw32"
+            rust_host: "x86_64-pc-windows-gnu"
             packages: "cmake python3 g++-mingw-w64-x86-64"
           - name: "x86_64 Linux"
             host: "x86_64-unknown-linux-gnu"
+            rust_host: "x86_64-unknown-linux-gnu"
             packages: "gperf cmake python3-zmq libdbus-1-dev libharfbuzz-dev"
           - name: "Cross-Mac x86_64"
             host: "x86_64-apple-darwin"
+            rust_host: "x86_64-apple-darwin"
             packages: "cmake imagemagick libcap-dev librsvg2-bin libz-dev libbz2-dev libtiff-tools python-dev python3-setuptools-git"
           - name: "Cross-Mac aarch64"
             host: "aarch64-apple-darwin"
+            rust_host: "aarch64-apple-darwin"
             packages: "cmake imagemagick libcap-dev librsvg2-bin libz-dev libbz2-dev libtiff-tools python-dev python3-setuptools-git"
           - name: "x86_64 Freebsd"
             host: "x86_64-unknown-freebsd"
+            rust_host: "x86_64-unknown-freebsd"
             packages: "clang-8 gperf cmake python3-zmq libdbus-1-dev libharfbuzz-dev"
           - name: "ARMv8 Android"
             host: "aarch64-linux-android"
+            rust_host: "aarch64-linux-android"
             packages: "gperf cmake python3"
     name: ${{ matrix.toolchain.name }}
     steps:
@@ -95,6 +106,8 @@ jobs:
       run: ${{env.APT_SET_CONF}}
     - name: install dependencies
       run: sudo apt update; sudo apt -y install build-essential libtool cmake autotools-dev automake pkg-config bsdmainutils curl git ca-certificates ccache ${{ matrix.toolchain.packages }}
+    - name: install rust target
+      run: rustup update stable; rustup target add ${{ matrix.toolchain.rust_host }}
     - name: prepare w64-mingw32
       if: ${{ matrix.toolchain.host == 'x86_64-w64-mingw32' || matrix.toolchain.host == 'i686-w64-mingw32' }}
       run: |
diff --git a/src/fcmp/fcmp_rust/CMakeLists.txt b/src/fcmp/fcmp_rust/CMakeLists.txt
index cb25b3378..ae97858b6 100644
--- a/src/fcmp/fcmp_rust/CMakeLists.txt
+++ b/src/fcmp/fcmp_rust/CMakeLists.txt
@@ -26,11 +26,55 @@
 # STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 # THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+if(MINGW)
+  set(RUST_PLATFORM "pc-windows")
+  set(RUST_TOOLCHAIN "-gnu")
+elseif(MSVC)
+  set(RUST_PLATFORM "pc-windows")
+  set(RUST_TOOLCHAIN "-msvc")
+elseif(APPLE)
+  set(RUST_PLATFORM "apple-darwin")
+  set(RUST_TOOLCHAIN "")
+elseif(FREEBSD)
+  set(RUST_PLATFORM "unknown-freebsd")
+  set(RUST_TOOLCHAIN "")
+elseif(OPENBSD)
+  set(RUST_PLATFORM "unknown-openbsd")
+  set(RUST_TOOLCHAIN "")
+elseif(ANDROID)
+  set(RUST_PLATFORM "linux-android")
+  if(ARCH_ID MATCHES "(arm|armv7)")
+    set(RUST_TOOLCHAIN "eabi")
+  else()
+    set(RUST_TOOLCHAIN "")
+  endif()
+elseif(DRAGONFLY)
+  set(RUST_PLATFORM "unknown-dragonfly")
+  set(RUST_TOOLCHAIN "")
+elseif(CMAKE_SYSTEM_NAME MATCHES "(SunOS|Solaris)")
+  if(ARCH_ID MATCHES "x86_64")
+    set(RUST_PLATFORM "pc-solaris")
+    set(RUST_TOOLCHAIN "")
+  elseif(ARCH_ID MATCHES "sparcv9")
+    set(RUST_PLATFORM "sun-solaris")
+    set(RUST_TOOLCHAIN "")
+  endif()
+else()
+  set(RUST_PLATFORM "unknown-linux")
+  if(ARCH_ID MATCHES "armv7")
+    set(RUST_TOOLCHAIN "-gnueabi")
+  else()
+    set(RUST_TOOLCHAIN "-gnu")
+  endif()
+endif()
+
+set(RUST_TARGET "${ARCH_ID}-${RUST_PLATFORM}${RUST_TOOLCHAIN}")
+
 if (CMAKE_BUILD_TYPE STREQUAL "Debug")
-  set(CARGO_CMD cargo build)
+  set(CARGO_CMD cargo build --target "${RUST_TARGET}")
   set(TARGET_DIR "debug")
 else ()
-  set(CARGO_CMD cargo build --release)
+  set(CARGO_CMD cargo build --target "${RUST_TARGET}" --release)
   set(TARGET_DIR "release")
 endif ()