error:undetermined Visual Studio Version

Error encountered while compiling PostgreSQL:

------ Unable to determine Visual Studio version:the NMAKE version couldnot is determined. At Src/tools/msvc /MKVCBUILD.PM Line

Solve:

The first scenario: Modify the SRC\TOOLS\MSVC\VSOBJECTFACTORY.PM, and the open in the Determinevisualstudioversion function (P, "nmake/? 2>&1 | ") Change to open (P, "nmake/p 2>&1 |")

But I use this method without eggs.

Second scenario (based on speculation): directly modify the 86th line under File mkvcbuild.pm

---------my $vsVersion = ' 14.00 '; Change the determine () function here to the version of MSVC that corresponds to your Visual Studio, as my vs2015 is changed to ' 14.00 '

Get.