[PHP7] check isfinite in config.m4
[PHP7] check isfinite in config.m4

tangyouyi1513/openrasp,tangyouyi1513/openrasp,tangyouyi1513/openrasp,tangyouyi1513/openrasp,tangyouyi1513/openrasp,tangyouyi1513/openrasp,tangyouyi1513/openrasp,tangyouyi1513/openrasp