Switch to conanfile.py.

conanfile.py

@@ -0,0 +1,10 @@
+from conans import ConanFile
+
+class Recipe(ConanFile):
+  settings = "os"
+  requires = "xerces-c/[>=3.2,<4.0]"
+  default_options = {"xerces-c:shared": True}
+
+  def configure(self):
+    if self.settings.os == "Linux":
+         self.options["xerces-c"].shared = False

conanfile.txt

@@ -1,8 +0,0 @@
-[requires]
-xerces-c/[>=3.2,<4.0] 
-
-[options]
-xerces-c:shared=True
-
-[options.linux.xerces-c]
-shared=False

valentina.qbs

@@ -10,7 +10,7 @@ Project {
     Probes.ConanfileProbe {
         id: thirdPartyConanPackages
         condition: enableConan
-        conanfilePath: project.sourceDirectory + "/conanfile.txt"
+        conanfilePath: project.sourceDirectory + "/conanfile.py"
         settings: {
             if (qbs.targetOS.contains("macos") && project.minimumMacosVersion !== undefined)
                 return ({"os.version": project.minimumMacosVersion});