Use the -march=arch<edition> scheme instead of -march=z<model number> to
support GCC and binutils releases that only support the former for
recent CPU generations (e.g., as some versions of GCC-9 only accept
arch13 but not z15).
On s390x GCC uses two schemes for -march: the revision of the Principles
of Operations (architecture manual) and the CPU model that introduced a
set of ISA extensions.
---
configure.ac | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/configure.ac b/configure.ac
index 57c044cd5..5d2e3f55c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1401,18 +1401,18 @@ case $host in
;;
z13 | z13esa)
cpu="z13"
- gccarch="z13"
+ gccarch="arch11"
extra_functions=""
;;
z14 | z14esa)
cpu="z14"
- gccarch="z14"
+ gccarch="arch12"
extra_functions=""
xpath="z13"
;;
z15 | z15esa)
cpu="z15"
- gccarch="z15"
+ gccarch="arch13"
extra_functions=""
xpath="z14 z13"
;;
--
2.26.2
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