Attempt to add protobuf dependency installation on macos-11

Since the Qt5 build seems failing because protobuf is not found
/tmp/qt-20231104-5483-1fey0cz/qt-everywhere-src-6.5.2/qtgrpc/src/tools/qtprotoccommon/generatorbase.cpp:8:10: fatal error: 'google/protobuf/stubs/logging.h' file not found

.github/workflows/macos-ustk.yml

@@ -33,8 +33,13 @@ jobs:
     - name: Print OS information
       run: system_profiler SPSoftwareDataType
 
-    - name: Install dependencies
-      run: brew install libpng libjpeg-turbo libdc1394 opencv pcl librealsense zbar vtk fftw armadillo nlohmann-json
+    - name: Install dependencies for macos-11
+      if: matrix.os == 'macos-11'
+      run: brew install libpng libjpeg-turbo libdc1394 opencv pcl librealsense zbar pkg-config nlohmann-json protobuf
+
+    - name: Install dependencies for macos-12
+      if: matrix.os == 'macos-12'
+      run: brew install libpng libjpeg-turbo libdc1394 opencv pcl librealsense zbar pkg-config nlohmann-json
 
     - name: Clone visp-images
       env:

.github/workflows/macos.yml

@@ -33,7 +33,12 @@ jobs:
     - name: Print OS information
       run: system_profiler SPSoftwareDataType
 
-    - name: Install dependencies
+    - name: Install dependencies for macos-11
+      if: matrix.os == 'macos-11'
+      run: brew install libpng libjpeg-turbo libdc1394 opencv pcl librealsense zbar pkg-config nlohmann-json protobuf
+
+    - name: Install dependencies for macos-12
+      if: matrix.os == 'macos-12'
       run: brew install libpng libjpeg-turbo libdc1394 opencv pcl librealsense zbar pkg-config nlohmann-json
 
     - name: Install java dependencies
@@ -87,18 +92,7 @@ jobs:
         make -j$(sysctl -n hw.logicalcpu)
 
     - name: ViSP as 3rdparty with visp.pc and pkg-config
-      if: matrix.os != 'macOS-10.15'
       run: |
-        # With macOS 10.15 there is the following build error:
-        # /Applications/Xcode_12.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/cmath:317:9:
-        #   error: no member named 'signbit' in the global namespace
-        #   using ::signbit;
-        # also reported here https://stackoverflow.com/questions/58313047/cannot-compile-r-packages-with-c-code-after-updating-to-macos-catalina
-        # As suggested adding -isysroot build flag in VISPGenerateConfigScript.cmake around line 149 with
-        #   execute_process(COMMAND xcrun --show-sdk-path
-        #                   OUTPUT_VARIABLE SDK_PATH OUTPUT_STRIP_TRAILING_WHITESPACE)
-        #   list(APPEND _cxx_flags "-isysroot ${SDK_PATH}")
-        # doesn't fix the build issue. That's why here the test is only done for macOS 11.0
         cd ${HOME}/visp_sample
         export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/tmp/usr/local/lib/pkgconfig
         pkg-config --cflags visp
@@ -107,7 +101,6 @@ jobs:
         make -j$(sysctl -n hw.logicalcpu) -f Makefile.visp.pc clean
 
     - name: ViSP as 3rdparty with visp-config
-      if: matrix.os != 'macos-10.15'
       run: |
         cd ${HOME}/visp_sample
         export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/tmp/usr/local/lib/pkgconfig