[vlc-devel] [PATCH] configure: fix using protoc from the built tools

Steve Lhomme robux4 at ycbcr.xyz
Fri May 18 09:36:29 CEST 2018

On Fri, May 18, 2018, at 09:10, Rémi Denis-Courmont wrote:
> Le perjantaina 18. toukokuuta 2018, 9.57.54 EEST Steve Lhomme
> a écrit :>> LUAC='/c/Users/robux/Documents/Programs/Videolabs/work/contrib/-
>> x86_64->> w64-mingw32/../bin/x86_64-w64-mingw32-luac.exe'
> Actually LUAC is probed using CHECK_TOOL, not PATH_TOOL.
>> Basically the C/C++ are exceptions rather than the norm.
> No, that is the norm, not the exception: CC, CXX, OBJC, BUILDCC,
> DESKTOP_FILE_VALIDATE,> LUAC, LEX, BISON, KDE4_CONFIG are all using the simple form.

> And most AC_PATH_PROG calls are cargo-culted/copy-pasted without
> consideration> whether it was actually needed.
>> Everything else
>> in the environment when you run configure is saved in
>> variables reused>> when you call make. Changing the environment when you call make has
>> little to no effect at all. I don't see why the PATH should be any
>> different.
>> it's very inconvenient to have to remember to reset your PATH
>> whenever>> you switch to another build directory and prone to a lot of time
>> wasting>> errors.
> No. It is not using the same environment that is prone to errors.

Exactly, so forcing the user to change the environment for each folder
one compiles in is prone to errors.
You can't say that you have to have the same environment between
configure and make (which is correct) and tell the user to often mess
with his/her environment.
All the variables you mention are things needed to compile for a
particular target. But the things we build in extra/tools may differ
between VLC versions, even if the target is the same. That's especially
true for compilers.
> configure even checks to prevent the most obvious errors.
> --
> Реми Дёни-Курмон
> http://www.remlab.net/
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