From: Thomas Perrot <[email protected]>

When expect is built with LTO, GCC correctly passes -ffile-prefix-map
to lto1 during link-time recompilation. However, when lto1 incorporates
debug info from a linked dependency (tcl8), the directory entries in
.debug_line_str from that dependency are not subject to prefix
remapping, leaving a raw TMPDIR path in the split debug symbols of
libexpect5.45.4.so:

  .debug_line_str: /src/build/tmp/work/.../tcl8/8.6.17/build

This is specific to packages linking against tcl8 with LTO and is not
an incompatibility between LTO and expect itself.

Signed-off-by: Thomas Perrot <[email protected]>

---
Changes in v2:
- Fix commit message
- Link to v1: 
https://lore.kernel.org/all/[email protected]/
---
 meta/conf/distro/include/lto.inc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta/conf/distro/include/lto.inc b/meta/conf/distro/include/lto.inc
index 54983412bc14..8c13601a4df6 100644
--- a/meta/conf/distro/include/lto.inc
+++ b/meta/conf/distro/include/lto.inc
@@ -4,6 +4,7 @@
 #
 
 # Disable LTO for following packages
+LTO:pn-expect = ""
 LTO:pn-glibc = ""
 LTO:pn-gcc-runtime = ""
 LTO:pn-libgcc-initial = ""
-- 
2.53.0

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