Fix macOS legacy build on newer GitHub runner

.github/workflows/build.yml

@@ -19,7 +19,7 @@ jobs:
           - runner: 'macos-14'
             qtVersion: '6.5.3'
             qtModules: 'qtimageformats'
-          - runner: 'macos-12'
+          - runner: 'macos-14'
             qtVersion: '5.15.2'
             osSuffix: '_legacy'
           - runner: 'windows-2022'

dist/scripts/build.ps1

@@ -1,23 +1,37 @@
 #!/usr/bin/env pwsh
 
-param
-(
+param (
     $Prefix = "/usr"
 )
 
 if ($IsWindows) {
     dist/scripts/vcvars.ps1
 }
 
-if ((qmake --version -split '\n')[1][17] -eq '6') {
-    qmake QMAKE_APPLE_DEVICE_ARCHS="x86_64 arm64" $args[0] PREFIX=$Prefix DEFINES+="$env:nightlyDefines"
-} else {
-    qmake $args[0] PREFIX=$Prefix DEFINES+="$env:nightlyDefines"
+$qtVersion = ((qmake --version -split '\n')[1] -split ' ')[3]
+Write-Host "Detected Qt Version $qtVersion"
+
+$qmakeArgs = @(
+    "PREFIX=""$Prefix""",
+    "DEFINES+=""$env:nightlyDefines"""
+)
+
+if ($IsMacOS) {
+    if ($qtVersion -like '5.*') {
+        # QTBUG-117225
+        $qmakeArgs += @("-early", "QMAKE_DEFAULT_LIBDIRS=""$(xcrun -show-sdk-path)/usr/lib""")
+    } else {
+        $qmakeArgs += "QMAKE_APPLE_DEVICE_ARCHS=""x86_64 arm64"""
+    }
 }
 
+Write-Host "Running 'qmake' w/ args: $qmakeArgs"
+Invoke-Expression "qmake $qmakeArgs"
 
 if ($IsWindows) {
+    Write-Host "Running 'nmake'"
     nmake
 } else {
+    Write-Host "Running 'make'"
     make
 }