Compilation problems

The version of the code is qt-everywhere-opensource-src-5.1.1.tar.gz.When we unpack,According to the README, executing ./configure -no-xcb -no-qpa-platform-guard -platform hpuxi-acc-64,then configure can be achieved. next to execute: make ,and then there will be a mistake. as follow
error "Compiler not supported" .We found that the problem appeared in the file \qtbase\src\corelib\global\qcompilerdetection.h . the code is

1. if defined(__HP_aCC) || __cplusplus >= 199707L
2. define Q_NO_TEMPLATE_FRIENDS
3. define Q_CC_HPACC
4. define Q_FUNC_INFO _PRETTY_FUNCTION_
5. if __HP_aCC-0 < 060000
6. define QT_NO_TEMPLATE_TEMPLATE_PARAMETERS
7. define Q_DECL_EXPORT __declspec(dllexport)
8. define Q_DECL_IMPORT __declspec(dllimport)
9. endif
10. if __HP_aCC-0 >= 061200
11. define Q_DECL_ALIGN _attribute_((aligned))
12. endif
13. if __HP_aCC-0 >= 062000
14. define Q_DECL_EXPORT _attribute_((visibility("default")))
15. define Q_DECL_HIDDEN _attribute_((visibility("hidden")))
16. define Q_DECL_IMPORT Q_DECL_EXPORT
17. endif
18. else
19. error "Compiler not supported"
20. endif