cmake: fix CI env, force lib prefix (needed under windows)

Signed-off-by: falkTX <falktx@falktx.com>

.github/workflows/cmake.yml

@@ -8,6 +8,9 @@ on:
     branches:
       - '*'
 
+env:
+  DESTDIR: ${{ github.workspace }}/build/tmp
+
 jobs:
   macos-11:
     runs-on: macos-11
@@ -21,8 +24,6 @@ jobs:
       - name: build
         run: cmake --build build -j $(sysctl -n hw.logicalcpu)
       - name: install
-        env:
-          DESTDIR: ${{ env.GITHUB_WORKSPACE }}/build/tmp
         run: cmake --install build --verbose
 
   mingw32-cross:
@@ -50,8 +51,6 @@ jobs:
       - name: build
         run: cmake --build build -j $(nproc)
       - name: install
-        env:
-          DESTDIR: ${{ env.GITHUB_WORKSPACE }}/build/tmp
         run: cmake --install build --verbose
 
   mingw64-cross:
@@ -79,8 +78,6 @@ jobs:
       - name: build
         run: cmake --build build -j $(nproc)
       - name: install
-        env:
-          DESTDIR: ${{ env.GITHUB_WORKSPACE }}/build/tmp
         run: cmake --install build --verbose
 
   ubuntu-20_04:
@@ -96,8 +93,6 @@ jobs:
       - name: build
         run: cmake --build build -j $(nproc)
       - name: install
-        env:
-          DESTDIR: ${{ env.GITHUB_WORKSPACE }}/build/tmp
         run: cmake --install build --verbose
 
   ubuntu-22_04:
@@ -113,8 +108,6 @@ jobs:
       - name: build
         run: cmake --build build -j $(nproc)
       - name: install
-        env:
-          DESTDIR: ${{ env.GITHUB_WORKSPACE }}/build/tmp
         run: cmake --install build --verbose
 
   windows:
@@ -126,6 +119,4 @@ jobs:
       - name: build
         run: cmake --build build
       - name: install
-        env:
-          DESTDIR: ${{ env.GITHUB_WORKSPACE }}/build/tmp
         run: cmake --install build --verbose

cmake/CMakeLists.txt

@@ -811,6 +811,7 @@ install(TARGETS carla-standalone
 set_target_properties(carla-standalone
   PROPERTIES
     OUTPUT_NAME carla_standalone2
+    PREFIX lib
 )
 
 target_compile_definitions(carla-standalone
@@ -905,6 +906,7 @@ install(TARGETS carla-utils
 set_target_properties(carla-utils
   PROPERTIES
     OUTPUT_NAME carla_utils
+    PREFIX lib
 )
 
 target_include_directories(carla-utils