Reinstate Linux and macOS builds

Author: pcolby

.github/workflows/build.yaml

@@ -7,7 +7,6 @@ permissions:
 
 jobs:
   linux:
-    if: false
     runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
@@ -149,7 +148,6 @@ jobs:
           if-no-files-found: error
 
   mac:
-    if: false
     runs-on: ${{ matrix.os }}
     timeout-minutes: 15
     strategy:
@@ -475,8 +473,8 @@ jobs:
           # { toolchain: 'llvm',  generator: 'MinGW Makefiles', dll: libQtPokit.dll } \todo See temp exclusion above.
           - { toolchain: 'mingw', generator: 'MinGW Makefiles', dll: libQtPokit.dll }
           - { toolchain: 'msvc',  generator: 'NMake Makefiles', dll: QtPokit.dll }
-          # Optional additional tools to be installed by aqt (via install-qt-action).
-          - { toolchain: 'mingw', arch: x86,    aqtTools: 'tools_mingw,qt.tools.win32_mingw810' }
+          # Optional additional tools to be installed by aqtinstall (via install-qt-action).
+          - { toolchain: 'mingw', arch: x86, aqtTools: 'tools_mingw,qt.tools.win32_mingw810' }
           # Use Qt-provided 64-bit MinGW for recent Qt's (defaulting to GitHub's 12.2.0 version for older Qt versions).
           - { toolchain: 'mingw', arch: x86-64, qt: '5.14.2', aqtTools: 'tools_mingw1310' }
           - { toolchain: 'mingw', arch: x86-64, qt: '5.15.2', aqtTools: 'tools_mingw1310' }