[Buildroot] [git commit] package/zlib-ng: Conditionally enable Power8 option

[Arnout Vandecappelle (Essensium/Mind)]

commit: https://git.buildroot.net/buildroot/commit/?id=f909dce3b0979bc2de54fd848ded3dc4a6c417e8
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

zlib-ng's build system does not correctly detect if it supports the
Power8 feature. Force it off to fix building for configurations that
don't support the vector builtin functions.

For example, building for BR2_powerpc_601:

  warning: implicit declaration of function ‘vec_xl’; did you mean
 ‘vec_rl’? [-Wimplicit-function-declaration]
   93 |             vbuf = vec_xl(0, (unsigned char *) buf);

This logic was incorrectly removed in commit 04e26cb7feb.

Signed-off-by: Joel Stanley <joel at jms.id.au>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout at mind.be>
---
 package/zlib-ng/zlib-ng.mk | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/package/zlib-ng/zlib-ng.mk b/package/zlib-ng/zlib-ng.mk
index fb497b8c11..dd1723ac86 100644
--- a/package/zlib-ng/zlib-ng.mk
+++ b/package/zlib-ng/zlib-ng.mk
@@ -23,4 +23,11 @@ ifeq ($(BR2_arm),y)
 ZLIB_NG_CONF_OPTS += -DWITH_ACLE=1 -DWITH_NEON=1
 endif
 
+ifeq ($(BR2_powerpc_power8),y)
+ZLIB_NG_CONF_OPTS += -DWITH_POWER8=ON
+else
+ZLIB_NG_CONF_OPTS += -DWITH_POWER8=OFF
+endif
+
+
 $(eval $(cmake-package))