Simplify spec

Signed-off-by: Igor Raits <ignatenkobrain@fedoraproject.org>

.gitignore

@@ -24,3 +24,4 @@
 /lz4-1.8.2.tar.gz
 /lz4-1.8.3.tar.gz
 /lz4-1.9.1.tar.gz
+/lz4-1.9.3.tar.gz

lz4.spec

@@ -1,3 +1,5 @@
+%global _vpath_srcdir contrib/meson
+
 Name:           lz4
 Version:        1.9.3
 Release:        1%{?dist}
@@ -44,16 +46,13 @@ contains static libraries for static linking of applications.
 %autosetup
 
 %build
-cd contrib/meson
-CONFIGURE_OPTS=(
-        -Dbin_programs=true
-        -Ddefault_library=both
-)
-%meson "${CONFIGURE_OPTS[@]}"
+%meson \
+  -Dbin_programs=true \
+  -Ddefault_library=both \
+  %{nil}
 %meson_build
 
 %install
-cd contrib/meson
 %meson_install
 
 %files