Use platform.system to determine if powershell runs

Apparently it was a problem referring to `os` and `os_build`
in the jinja template later on, since those values were determined
on the fly as well

Contributes to CURA-9365

profiles/cura.jinja

@@ -3,17 +3,18 @@ include(default)
 [build_requires]
 
 [settings]
-os={{ {"Darwin": "Macos"}.get(platform.system(), platform.system()) }}
-os_build={{ {"Darwin": "Macos"}.get(platform.system(), platform.system()) }}
+os='{{ {'Darwin': 'Macos'}.get(platform.system(), platform.system()) }}'
+os_build='{{ {'Darwin': 'Macos'}.get(platform.system(), platform.system()) }}'
 compiler.cppstd=17
-{% if compiler == "gcc" %}compiler.libcxx=libstdc++11
-{% elif compiler == "apple-clang" %}compiler.libcxx=libc++
-{% elif compiler == "Visual Studio" %}compiler.toolset=v142{% endif %}
+{% if compiler == 'gcc' %}compiler.libcxx=libstdc++11
+{% elif compiler == 'apple-clang' %}compiler.libcxx=libc++
+{% elif compiler == 'Visual Studio' %}compiler.toolset=v142
+{% endif %}
 [options]
 
 [env]
 
 [conf]
 tools.cmake.cmaketoolchain:find_package_prefer_config=True
-{% if os_build != "Windows" %}{% else %}tools.env.virtualenv:powershell=True{% endif %}
-{% if compiler == "Visual Studio" %}tools.microsoft.msbuild:vs_version=compiler.version{% endif %}
+{% if platform.system() == 'Windows' %}tools.env.virtualenv:powershell=True{% endif %}
+{% if compiler == 'Visual Studio' %}tools.microsoft.msbuild:vs_version=compiler.version{% endif %}

profiles/cura_build.jinja

@@ -3,17 +3,18 @@ include(default)
 [build_requires]
 
 [settings]
-os={{ {"Darwin": "Macos"}.get(platform.system(), platform.system()) }}
-os_build={{ {"Darwin": "Macos"}.get(platform.system(), platform.system()) }}
+os='{{ {'Darwin': 'Macos'}.get(platform.system(), platform.system()) }}'
+os_build='{{ {'Darwin': 'Macos'}.get(platform.system(), platform.system()) }}'
 compiler.cppstd=17
-{% if compiler == "gcc" %}compiler.libcxx=libstdc++11
-{% elif compiler == "apple-clang" %}compiler.libcxx=libc++
-{% elif compiler == "Visual Studio" %}compiler.toolset=v142{% endif %}
+{% if compiler == 'gcc' %}compiler.libcxx=libstdc++11
+{% elif compiler == 'apple-clang' %}compiler.libcxx=libc++
+{% elif compiler == 'Visual Studio' %}compiler.toolset=v142
+{% endif %}
 [options]
 
 [env]
 
 [conf]
 tools.cmake.cmaketoolchain:find_package_prefer_config=True
-{% if os_build == "Windows" %}tools.env.virtualenv:powershell=True{% endif %}
-{% if compiler == "Visual Studio" %}tools.microsoft.msbuild:vs_version=compiler.version{% endif %}
+{% if platform.system() == 'Windows' %}tools.env.virtualenv:powershell=True{% endif %}
+{% if compiler == 'Visual Studio' %}tools.microsoft.msbuild:vs_version=compiler.version{% endif %}

profiles/cura_debug.jinja

@@ -2,6 +2,4 @@ include(cura.jinja)
 
 [settings]
 build_type=Debug
-{% if compiler == "Visual Studio" %}
-    compiler.runtime=MDd
-{% endif %}
+{% if compiler == 'Visual Studio' %}compiler.runtime=MDd{% endif %}

profiles/cura_release.jinja

@@ -2,6 +2,4 @@ include(cura.jinja)
 
 [settings]
 build_type=Release
-{% if compiler == "Visual Studio" %}
-    compiler.runtime=MD
-{% endif %}
+{% if compiler == 'Visual Studio' %}compiler.runtime=MD{% endif %}