The t-arm make fragment currently uses 'mv' to update some files that
are automatically regenerated, but this causes problems on read-only
filesystems if the date stamps are incorrect and the files have not
really changed. So use move-if-change instead.
PR target/93548
* config/arm/t-arm: ($(srcdir)/config/arm/arm-tune.md,
$(srcdir)/config/arm/arm-tables.opt): Use move-if-change.
diff --git a/gcc/config/arm/t-arm b/gcc/config/arm/t-arm
index e8483d45688..b883f796956 100644
--- a/gcc/config/arm/t-arm
+++ b/gcc/config/arm/t-arm
@@ -70,13 +70,15 @@ $(srcdir)/config/arm/arm-tune.md: $(srcdir)/config/arm/parsecpu.awk \
$(srcdir)/config/arm/arm-cpus.in
$(AWK) -f $(srcdir)/config/arm/parsecpu.awk -v cmd=md \
$(srcdir)/config/arm/arm-cpus.in > arm-tune.new
- mv arm-tune.new $(srcdir)/config/arm/arm-tune.md
+ $(srcdir)/../move-if-change arm-tune.new \
+ $(srcdir)/config/arm/arm-tune.md
$(srcdir)/config/arm/arm-tables.opt: $(srcdir)/config/arm/parsecpu.awk \
$(srcdir)/config/arm/arm-cpus.in
$(AWK) -f $(srcdir)/config/arm/parsecpu.awk -v cmd=opt \
$(srcdir)/config/arm/arm-cpus.in > arm-tables.new
- mv arm-tables.new $(srcdir)/config/arm/arm-tables.opt
+ $(srcdir)/../move-if-change arm-tables.new \
+ $(srcdir)/config/arm/arm-tables.opt
arm-cpu.h: s-arm-cpu ; @true
s-arm-cpu: $(srcdir)/config/arm/parsecpu.awk \
