[Freeswitch-users] Freeswitch windows build - libpng

[Gregor Nanger]

Hi!

After a year I wanted to build FS on windows and make video tutorial or for
FS wiki.

I am using latest VS2017 and everything builds except libpng project. Below
is error if someone can help me, because I don't have c++ experience:

1>------ Build started: Project: Download zlib, Configuration: Release
Win32 ------
1>Downloading zlib.
2>------ Build started: Project: libpng, Configuration: Release x64 ------
2>Generating pnglibconf.h
2>        1 file(s) copied.
2>png.c
2>pngerror.c
2>pngget.c
2>pngmem.c
2>pngpread.c
2>pngread.c
2>pngrio.c
2>pngrtran.c
2>pngrutil.c
2>pngset.c
2>pngtrans.c
2>pngwio.c
2>pngwrite.c
2>pngwtran.c
2>pngwutil.c
2>Generating Code...
2>zlib.lib(inflate.obj) : MSIL .netmodule or module compiled with /GL
found; restarting link with /LTCG; add /LTCG to the link command line to
improve linker performance
2>   Creating library D:\Git\freeswitch\x64\Release\libpng16.lib and object
D:\Git\freeswitch\x64\Release\libpng16.exp
2>Generating code
2>d:\git\freeswitch\libs\zlib\deflate.c(2097): error C2220: warning treated
as error - no 'executable' file generated
2>d:\git\freeswitch\libs\zlib\deflate.c(2097): warning C5045: Compiler will
insert Spectre mitigation for memory load if /Qspectre switch specified
2>d:\git\freeswitch\libs\zlib\deflate.c(2097) : note: index 'dist' range
checked by comparison on this line
2>d:\git\freeswitch\libs\zlib\deflate.c(2097) : note: feeds memory load on
this line
2>d:\git\freeswitch\libs\zlib\deflate.c(1987): warning C5045: Compiler will
insert Spectre mitigation for memory load if /Qspectre switch specified
2>d:\git\freeswitch\libs\zlib\deflate.c(1987) : note: index 'dist' range
checked by comparison on this line
2>d:\git\freeswitch\libs\zlib\deflate.c(1987) : note: feeds memory load on
this line
2>d:\git\freeswitch\libs\zlib\deflate.c(1862): warning C5045: Compiler will
insert Spectre mitigation for memory load if /Qspectre switch specified
2>d:\git\freeswitch\libs\zlib\deflate.c(1862) : note: index 'dist' range
checked by comparison on this line
2>d:\git\freeswitch\libs\zlib\deflate.c(1862) : note: feeds memory load on
this line
2>LINK : fatal error LNK1257: code generation failed
2>Done building project "libpng.vcxproj" -- FAILED.

Best regards, Gregor
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