[Bug libquadmath/55821] Release tarballs (unconditionally) install libquadmath.info when libquadmath is not supported

[sandra at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55821

Sandra Loosemore <sandra at codesourcery dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |sandra at codesourcery dot com

--- Comment #7 from Sandra Loosemore <sandra at codesourcery dot com> ---
Trying to build an arm-none-linux-gnueabi cross from mainline head, I'm getting
this error now:

/scratch/sandra/arm-fsf/src/gcc-mainline/libquadmath/libquadmath.texi:369:
@include `libquadmath-vers.texi': No such file or directory.
/scratch/sandra/arm-fsf/src/gcc-mainline/libquadmath/libquadmath.texi:374:
warning: undefined flag: BUGURL.

Reverting the patch from r216027 makes it work again.

I don't see anything named BUILD_LIBQUADMATH coming out of configure, but in
config.log I do see:

BUILD_LIBQUADMATH_FALSE=''
BUILD_LIBQUADMATH_TRUE='#'

Are you sure that this patch was actually tested with a clean build directory
where libquadmath-vers.texi was not already present from a previous build?