support ARMv4 architecture, needed for armel builds

Forwarded: no
Last-Update: 2016-07-01

Gbp-Pq: Name armv4.diff

src/corelib/global/qprocessordetection.h

@@ -132,6 +132,8 @@
 #  elif defined(__ARM_ARCH_5TEJ__) \
         || defined(__ARM_ARCH_5TE__)
 #    define Q_PROCESSOR_ARM 5
+#  elif defined(__ARM_ARCH_4T__)
+#    define Q_PROCESSOR_ARM 4
 #  else
 #    define Q_PROCESSOR_ARM 0
 #  endif
@@ -146,6 +148,9 @@
 #  endif
 #  if Q_PROCESSOR_ARM >= 5
 #    define Q_PROCESSOR_ARM_V5
+#  endif
+#  if Q_PROCESSOR_ARM >= 4
+#    define Q_PROCESSOR_ARM_V4
 #  else
 #    error "ARM architecture too old"
 #  endif