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demos: Build with -fno-lto.

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Some versions of Clang do not properly pass include paths to the
assembler when LTO is enabled. That's a problem for the DEMO_EMBED macro
used by the demos, since it relies on .incbin. To make matters even
better, compilation fails, but doesn't return an error code; the
resulting binary is simply broken. Fortunately we don't really care
about LTO for the demos, so we can simply disable it. See also
https://github.com/llvm/llvm-project/issues/112920

Thanks to Giovanni for tracking down some of the pieces of this issue.
This commit is contained in:
Henri Verbeet
2025-05-12 18:46:13 +02:00
parent 3c8fd8a2f2
commit d4032f7d09
Notes: Henri Verbeet 2025-05-14 15:26:43 +02:00 
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1492
2 changed files with 3 additions and 2 deletions
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1
configure.ac
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@@ -197,6 +197,7 @@ case $host_os in
AC_SUBST([DEMO_CFLAGS],[$XCB_CFLAGS])
;;
esac
VKD3D_CHECK_CFLAGS([-fno-lto], [DEMO_CFLAGS="$DEMO_CFLAGS -fno-lto"])
AM_CONDITIONAL([BUILD_DEMOS], [test "x$enable_demos" = "xyes"])
AM_CONDITIONAL([BUILD_DOC], [test $DX_FLAG_doc = 1])
AM_CONDITIONAL([BUILD_TESTS], [test "x$enable_tests" != "xno"])