First thanks for your kindly answer . Sure, I know this ,but even added the seperator after every line or I adjusted them into one single line manualy in make file.,but after typing make command again, there still has such error:

$ make
C:/Program Files/GNU MCU Eclipse/Build Tools/2.12-20190422-1053/bin/make  all-recursive
make[1]: Entering directory 'E:/download/opencore-amr-0.1.3'
Making all in amrnb
/usr/bin/sh: line 18: C:/Program: No such file or directory
make[1]: *** [Makefile:344: all-recursive] Error 1
make[1]: Leaving directory 'E:/download/opencore-amr-0.1.3'
make: *** [Makefile:275: all] Error 2

Because the make file is created by configure course,so I guess the original reason is caused by the configure file,but i don't know how to modify the configure file

Thansk for your reply.

Best regards

Stephen