[FIX] [ENH] Trying to fix and improve CI build stage.

.gitlab-ci.yml

+stages:
+    - build
+
 # Windows 10 with dependencies
 # downloaded (and compiled) locally
 win_visual_studio_static_local_deps:
@@ -6,17 +9,19 @@ win_visual_studio_static_local_deps:
 
     image: windows:latest
 
+    stage: build
+
     before_script:
         - call VsDevCmd.bat
         - set DEPENDENCIES_LINK_TYPE=static
         - set clean_after=yes
+        - set BUILD_LIB=yes
+        - set BUILD_EXAMPLES=yes
+        - set BUILD_TESTS=yes
         - call build_scripts\windows\win_VS_build_x64_release.bat
 
     script:
-#        - cd ..\..
-        - cd build_scripts\windows
-#        - call win_run_tests.bat
-        - cd ..\..
+        - call build_scripts\windows\win_VS_build_x64_release.bat
 
 # Latest Ubuntu with dependencies
 # in system directories, Boost
@@ -24,47 +29,51 @@ win_visual_studio_static_local_deps:
 ubuntu_boost_system:
     image: martinbeseda/lib4neuro-ubuntu-system-deps:latest
 
+    stage: build
+
     before_script:
         - export TERM=xterm
-        - cd build_scripts/linux
         - export DEPENDENCIES_LINK_TYPE=shared
         - export CLEAN_AFTER=yes
-        - ./linux_gcc_build_x64_debug_system.sh
+        - export BUILD_LIB=yes
+        - export BUILD_EXAMPLES=yes
+        - export BUILD_TESTS=yes
 
     script:
-        - cd ../..
-        - cd build_scripts/linux
-#        - './linux_run_tests.sh'
-        - cd ../..
+        - build_scripts/linux/linux_gcc_build_x64_debug_system.sh
 
 # Latest Ubuntu with dependencies
 # downloaded (and compiled) locally
 ubuntu_boost_local_static_deps:
     image: martinbeseda/ubuntu-ci:latest
 
+    stage: build
+
     before_script:
         - export TERM=xterm
-        - cd build_scripts/linux
         - export DEPENDENCIES_LINK_TYPE=static
         - export CLEAN_AFTER=yes
-        - ./linux_gcc_build_x64_debug_local.sh
+        - export BUILD_LIB=yes
+        - export BUILD_EXAMPLES=yes
+        - export BUILD_TESTS=yes
 
     script:
-        - cd ../..
-        - cd build_scripts/linux
-#        - './linux_run_tests.sh'
-        - cd ../..
+        - build_scripts/linux/linux_gcc_build_x64_debug_local.sh
 
 # Latest CentOS with dependencies
 # downloaded (and compiled) locally
 centos_local_deps:
     image: martinbeseda/centos-ci:latest
 
+    stage: build
+
     before_script:
         - export TERM=xterm
-        - cd build_scripts/linux
         - export DEPENDENCIES_LINK_TYPE=static
         - export CLEAN_AFTER=yes
+        - export BUILD_LIB=yes
+        - export BUILD_EXAMPLES=yes
+        - export BUILD_TESTS=yes
 
     script:
-        - scl enable devtoolset-8 -- ./linux_gcc_build_x64_debug_local.sh
+        - scl enable devtoolset-8 -- build_scripts/linux/linux_gcc_build_x64_debug_local.sh