master 8b62b20: Merge from origin/emacs-28

[Eli Zaretskii]

branch: master
commit 8b62b20159f8ec3f5c7ea5227f814681741d61b1
Merge: 84d9d47 bdb489a
Author: Eli Zaretskii <eliz@gnu.org>
Commit: Eli Zaretskii <eliz@gnu.org>

    Merge from origin/emacs-28
    
    bdb489a ; * etc/DEBUG: Adjust instructions for libgccjit reproducer.
    b4fb381 ; * src/xdisp.c (produce_stretch_glyph): Avoid compilation wa...
---
 etc/DEBUG   | 7 ++++---
 src/xdisp.c | 2 +-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/etc/DEBUG b/etc/DEBUG
index 5553705..ced6a92 100644
--- a/etc/DEBUG
+++ b/etc/DEBUG
@@ -591,9 +591,10 @@ If you cannot figure out the cause for the problem using 
the above,
 native-compile the problematic file after setting the variable
 'comp-libgccjit-reproducer' to a non-nil value.  That should produce a
 file named ELNFILENAME_libgccjit_repro.c, where ELNFILENAME is the
-name of the problematic .eln file, in the same directory where the
-.eln file is produced.  Then attach that reproducer C file to your bug
-report.
+name of the problematic .eln file in the same directory where the .eln
+file is produced, or a file repro.c under your ~/.emacs.d/eln-cache
+(which one depends on how the native-compilation is invoked).  Then
+attach that reproducer C file to your bug report.
 
 ** Following longjmp call.
 
diff --git a/src/xdisp.c b/src/xdisp.c
index f6aa7fe..11ea836 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -30060,7 +30060,7 @@ produce_stretch_glyph (struct it *it)
 #ifdef HAVE_WINDOW_SYSTEM
   int ascent = 0;
   bool zero_height_ok_p = false;
-  struct face *face;
+  struct face *face = NULL;    /* shut up GCC's -Wmaybe-uninitialized */
 
   if (FRAME_WINDOW_P (it->f))
     {