[xen stable-4.21] x86emul/test: correct compiler checking and avoid it when merely cleaning

[patchbot@xxxxxxx]

commit 5d002b7470774a861f56bba20c08f314edc6d7b1
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Tue Nov 25 16:10:10 2025 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Nov 25 16:10:10 2025 +0100

    x86emul/test: correct compiler checking and avoid it when merely cleaning
    
    The error messages that the compiler may emit can be confusing.
    
    The check was also the wrong way round in case multiple make targets are
    specified: We want to do the check whenever targets other than the running
    and cleaning ones are specified.
    
    Fixes: 05f4cc219235 ("x86emul: suppress default test harness build with 
incapable compiler")
    Fixes: d5997399b7ad ("x86emul: suppress "not built" warning for test 
harness'es run targets")
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    master commit: c482d1f59fc723d5b0aca3b288ca2f6007cd00a4
    master date: 2025-11-24 11:28:47 +0100
---
 tools/tests/x86_emulator/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/tests/x86_emulator/Makefile 
b/tools/tests/x86_emulator/Makefile
index fefa29a06c..3e02580a35 100644
--- a/tools/tests/x86_emulator/Makefile
+++ b/tools/tests/x86_emulator/Makefile
@@ -98,7 +98,7 @@ avx512bw-opmask-vecs := 4 8
 # partially even with older compilers.
 TARGET-y := $(TARGET)
 
-ifeq ($(filter run%,$(MAKECMDGOALS)),)
+ifneq ($(filter-out run% clean% distclean,$(MAKECMDGOALS)),)
 
 define isa-check-cc
 TARGET-$(shell echo 'int i;' | $(CC) -x c -c -o /dev/null -m$(1) - || echo y) 
:=
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.21