Re: Request to rename version.h

[ASSI <Str...@ne...>]

Marcus Calhoun-Lopez writes:
> The source of the error is as follows:
> *) In the file gnuplot-5.2.7/src/Makefile.in, there is the line of code
>        DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
> *) The -I switch means that Clang (and GCC) search $(top_builddir) before the default include directions.
> *) Clang (and GCC) have a file called version in the default included directories (likely to be part of the C++20 standard).
> *) On case-insensitive file systems (like the the default macOS file system), the files version and VERSION are the same.
> *) In $(top_builddir), there is a file called VERSION.
> *) gnuplot indirectly has an #include <version>.
> *) Instead of finding version in the default include directories, it finds the file VERSION in $(top_builddir).
> *) This causes an error.

So this is likely only a problem if you do an in-tree build, can you try
to build out-of-tree instead and see if that error goes away?

> If -I$(top_builddir) is replaced with -idirafter$(top_builddir), the problem goes away.

That's changing the search order which may have different problems.

Achim.
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