[GRASS5] something about compiling Grass57

Dear Sir,
      sorry for troubling you a lot. i'm a university student who is learning sth sbout GIS. i met some problem while compiling grass57.
      while i'm compiling grass57, there is a mistake. before that, i've installed grass53. i typed
                 ./configure --with-grass50=/home/zxu/grass53source
      but there is a error messege:
                 checking for proj_api.h... no
                 configure: error: *** Unable to locate External PROJ.4 includes.
      then, i'm in a loss, and actually, i can't even find proj_api.h in my computer. could you please spare some time on it. Thank you very much for your help. and i'm looking forward your reply. Sorry for troubling again

Best Regards

Zealven Xu

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zeal zeal wrote:

Dear Sir,
     sorry for troubling you a lot. i'm a university student who is learning sth sbout GIS. i met some problem while compiling grass57.
     while i'm compiling grass57, there is a mistake. before that, i've installed grass53. i typed
                ./configure --with-grass50=/home/zxu/grass53source
     but there is a error messege:
                checking for proj_api.h... no
                configure: error: *** Unable to locate External PROJ.4 includes.
     then, i'm in a loss, and actually, i can't even find proj_api.h in my computer. could you please spare some time on it. Thank you very much for your help. and i'm looking forward your reply. Sorry for troubling again

Best Regards

Zealven Xu

Maybe try:
   --with-proj=no
Or install proj.4
   http://www.remotesensing.org/proj/

--
Richard Greenwood
www.greenwoodmap.com