disable asm on non-x86_64 to fix exec stack; rel 2

see facebook/zstd#2963

Author: jpalus

zstd.spec

@@ -1,8 +1,18 @@
+#
+# Conditional build:
+%bcond_without	asm		# disable assembler
+
+# workaround executable stack on non-x86_64
+# https://github.com/facebook/zstd/issues/2963
+%ifnarch %{x8664}
+%undefine	with_asm
+%endif
+
 Summary:	Zstandard - fast lossless compression algorithm
 Summary(pl.UTF-8):	Zstandard - szybki, bezstratny algorytm kompresji
 Name:		zstd
 Version:	1.5.1
-Release:	1
+Release:	2
 License:	BSD
 Group:		Libraries
 #Source0Download: https://github.com/facebook/zstd/releases
@@ -63,7 +73,8 @@ CFLAGS="%{rpmcflags} %{rpmcppflags} %{?archcflags}" \
 CXXFLAGS="%{rpmcxxflags} %{rpmcppflags}" \
 LDFLAGS="%{rpmldflags}" \
 %{__make} allmost manual \
-	V=1
+	V=1 \
+	%{!?with_asm:ZSTD_NO_ASM=1}
 
 %install
 rm -rf $RPM_BUILD_ROOT