Mesa (main): meson: drop compatability with < 0.48

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Module: Mesa
Branch: main
Commit: 88d0aeab6da3cc720314db99110cd10bf5d46232
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=88d0aeab6da3cc720314db99110cd10bf5d46232

Author: Thomas H.P. Andersen <phomes at gmail.com>
Date:   Thu Dec 16 22:28:42 2021 +0100

meson: drop compatability with < 0.48

Before meson 0.48 the cpu_family() would return 'ppc64le' on little
endian power8. In newer versions it returns 'ppc64' and endianness
should be checked with endian()

We now require meson >= 0.53 so we can drop the compatability with
older versions.

The old behavior was added in e430a034b9d2be626557931cd29808a3161889f1

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14240>

---

 meson.build | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/meson.build b/meson.build
index 03dda9ee3e7..597ea7057f9 100644
--- a/meson.build
+++ b/meson.build
@@ -880,12 +880,7 @@ elif _power8 == 'false'
   warning('power8 option "false" deprecated, please use "disabled" instead.')
 endif
 if _power8 != 'disabled'
-  # on old versions of meson the cpu family would return as ppc64le on little
-  # endian power8, this was changed in 0.48 such that the family would always
-  # be ppc64 regardless of endianness, and then the machine.endian() value
-  # should be checked. Since we support versions < 0.48 we need to use
-  # startswith.
-  if host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
+  if host_machine.cpu_family() == 'ppc64' and host_machine.endian() == 'little'
     if cc.get_id() == 'gcc' and cc.version().version_compare('< 4.8')
       error('Altivec is not supported with gcc version < 4.8.')
     endif
@@ -1338,7 +1333,7 @@ elif host_machine.cpu_family() == 'sparc64'
     with_asm_arch = 'sparc'
     pre_args += ['-DUSE_SPARC_ASM']
   endif
-elif host_machine.cpu_family().startswith('ppc64') and host_machine.endian() == 'little'
+elif host_machine.cpu_family() == 'ppc64' and host_machine.endian() == 'little'
   if system_has_kms_drm
     with_asm_arch = 'ppc64le'
     pre_args += ['-DUSE_PPC64LE_ASM']