On 07/10/17 14:09, Rebecca N. Palmer wrote:
The problems with current beignet look to be:
- file timestamps in INPUT_FILES_BLOCK (some of beignet's .h files are
script-generated). This part can be fixed in beignet.
That works (COMMAND touch -d '@$ENV{SOURCE_DATE_EPOCH}'
${OCL_OBJECT_DIR}/include/*.h right before building the .pch).
- build path captured in ORIGINAL_PCH_DIR. _Might_ be fixable in
beignet by using clang (...) > /path/to/beignet.pch instead of clang
(...) -o /path/to/beignet.pch, but that changes other things and I
haven't yet checked whether the result works.
That doesn't - the file names are only relative paths if -isysroot is
set to an absolute path, and HEADER_SEARCH_OPTIONS records (among other
things) the -isysroot setting, so there's always an absolute build path
somewhere. However, build path independence is only required in the
stricter version of the reproducibility standard.
As expected, the OPENCL_EXTENSION_TYPES issue doesn't happen in clang
3.9 (but as that's being removed, it isn't a long-term option).
