HAVE_ALLOCA         8 TSRM/tsrm_config.w32.h #define HAVE_ALLOCA 1
HAVE_ALLOCA        32 Zend/zend_config.nw.h #define HAVE_ALLOCA 1
HAVE_ALLOCA        42 ext/mbstring/oniguruma/win32/config.h #define HAVE_ALLOCA 1