Fix presets for msvc compilers with x86 outputs (#2072)

src/kit.ts

@@ -548,7 +548,7 @@ export function kitHostTargetArch(hostArch: string, targetArch?: string, amd64Al
   // instead of hard coding for win32 and x86.
   // Currently, there is no need of a similar overwrite operation on hostArch,
   // because CMake host target does not have the same name mismatch with VS.
-  targetArch = vsArchFromGeneratorPlatform[targetArch] || targetArch;
+  targetArch = targetArchFromGeneratorPlatform(targetArch);
 
   return (hostArch === targetArch) ? hostArch : `${hostArch}_${targetArch}`;
 }
@@ -839,6 +839,16 @@ const vsArchFromGeneratorPlatform: {[key: string]: string} = {
   win32: 'x86'
 };
 
+/**
+ * Turns 'win32' into 'x86' for target architecture.
+ */
+export function targetArchFromGeneratorPlatform(generatorPlatform?: string) {
+  if (!generatorPlatform) {
+    return undefined;
+  }
+  return vsArchFromGeneratorPlatform[generatorPlatform] || generatorPlatform;
+}
+
 /**
  * Preferred CMake VS generators by VS version
  */

src/preset.ts

@@ -7,7 +7,7 @@ import * as logging from '@cmt/logging';
 import { EnvironmentVariables, execute } from '@cmt/proc';
 import { expandString, ExpansionOptions } from '@cmt/expand';
 import paths from '@cmt/paths';
-import { effectiveKitEnvironment, getKitEnvironmentVariablesObject, Kit } from '@cmt/kit';
+import { effectiveKitEnvironment, getKitEnvironmentVariablesObject, Kit, targetArchFromGeneratorPlatform } from '@cmt/kit';
 import { compareVersions, vsInstallations } from '@cmt/installs/visual-studio';
 
 nls.config({ messageFormat: nls.MessageFormat.bundle, bundleFormat: nls.BundleFormat.standalone })();
@@ -666,9 +666,8 @@ async function expandConfigurePresetHelper(folder: string,
             const kit = kits[i];
             if (kit.visualStudio && !kit.compilers) {
               const version = vsVersions.get(kit.visualStudio);
-              if (kit.preferredGenerator &&
-                  (kit.visualStudioArchitecture === arch || kit.preferredGenerator.platform === arch) &&
-                  kit.preferredGenerator.toolset === ('host=' + toolset.host)) {
+              if (kit.preferredGenerator && targetArchFromGeneratorPlatform(kit.preferredGenerator.platform) === arch &&
+                  (kit.visualStudioArchitecture === toolset.host || kit.preferredGenerator.toolset === ('host=' + toolset.host))) {
                 if (toolset.version && version?.startsWith(toolset.version)) {
                   latestVsVersion = version;
                   latestVsIndex = i;