CI: WIP build for arm

mayo.pro

@@ -19,14 +19,8 @@ message(Qt version $$QT_VERSION)
     error(Qt >= 5.14 is required but detected version is $$QT_VERSION)
 }
 
-# Check architecture
-equals(QT_ARCH, x86_64) {
-    # NOP
-} else:equals(QT_ARCH, i386) {
-    # NOP
-} else {
-    warning(Platform architecture may be not supported(QT_ARCH = $$QT_ARCH))
-}
+# If variable 'CHECK_ARCH_64' is not empty then host is 64bit
+CHECK_ARCH_64 = $$find(QT_ARCH, 64)
 
 QT += core gui widgets
 greaterThan(QT_MAJOR_VERSION, 5) {
@@ -60,22 +54,35 @@ msvc {
         DEFINES += _USE_MATH_DEFINES
     }
 }
+
 gcc|clang {
     QMAKE_CXXFLAGS += -std=c++17
 }
+
 clang {
     # Silent Clang warnings about instantiation of variable 'Mayo::GenericProperty<T>::TypeName'
     QMAKE_CXXFLAGS += -Wno-undefined-var-template
     # See https://libcxx.llvm.org/docs/UsingLibcxx.html
     # LIBS += -lstdc++fs
 }
+
+unix:!macx {
+    isEmpty(CHECK_ARCH_64) {
+        DEFINES += _FILE_OFFSET_BITS=64 _LARGEFILE64_SOURCE=1
+    }
+}
+
 macx {
     DEFINES += GL_SILENCE_DEPRECATION
+    isEmpty(CHECK_ARCH_64) {
+        DEFINES += _DARWIN_USE_64_BIT_INODE
+    }
     QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.15
     LIBS += -liconv
 #   QMAKE_CXXFLAGS += -mmacosx-version-min=10.15
     ICON = images/appicon.icns
 }
+
 win32 {
     LIBS += -lOpengl32 -lUser32
 }