[OpenWrt-Devel] [PATCH] package/devel/perf: fix build for kernel 4.1

[Alexandru Ardelean]

This fix contains 2 parts:
 - kernel 4.1: backport upstream patch "perf build: Do not fail on missing Build file"
 - add +liblzma dependency

Signed-off-by: Alexandru Ardelean <ardeleanalex at gmail.com>
---
 package/devel/perf/Makefile                        |  2 +-
 ...f-build-Do-not-fail-on-missing-Build-file.patch | 67 ++++++++++++++++++++++
 2 files changed, 68 insertions(+), 1 deletion(-)
 create mode 100644 target/linux/generic/patches-4.1/222-perf-build-Do-not-fail-on-missing-Build-file.patch

diff --git a/package/devel/perf/Makefile b/package/devel/perf/Makefile
index b77e29a..5eba8f1 100644
--- a/package/devel/perf/Makefile
+++ b/package/devel/perf/Makefile
@@ -19,7 +19,7 @@ include $(INCLUDE_DIR)/package.mk
 define Package/perf
   SECTION:=devel
   CATEGORY:=Development
-  DEPENDS:= @USE_GLIBC +libelf1 +libdw +libpthread +librt +binutils
+  DEPENDS:= @USE_GLIBC +libelf1 +libdw +libpthread +librt +binutils +liblzma
   TITLE:=Linux performance monitoring tool
   VERSION:=$(LINUX_VERSION)-$(PKG_RELEASE)
   URL:=http://www.kernel.org
diff --git a/target/linux/generic/patches-4.1/222-perf-build-Do-not-fail-on-missing-Build-file.patch b/target/linux/generic/patches-4.1/222-perf-build-Do-not-fail-on-missing-Build-file.patch
new file mode 100644
index 0000000..3fb2df6
--- /dev/null
+++ b/target/linux/generic/patches-4.1/222-perf-build-Do-not-fail-on-missing-Build-file.patch
@@ -0,0 +1,67 @@
+From d7a3d85e08477a979933a2bb3b525a8de99543c2 Mon Sep 17 00:00:00 2001
+From: Jiri Olsa <jolsa at kernel.org>
+Date: Fri, 29 May 2015 17:42:58 +0200
+Subject: [PATCH] perf build: Do not fail on missing Build file
+
+Allow nesting into directories without Build file. Currently we force
+include of the Build file, which fails the build when the Build file is
+missing.
+
+We already support empty *-in.o' objects if there's nothing in the
+directory to be compiled, so we can just use it for missing Build file
+cases.
+
+Also adding this case under tests.
+
+Reported-by: Rabin Vincent <rabin.vincent at axis.com>
+Signed-off-by: Jiri Olsa <jolsa at kernel.org>
+Cc: David Ahern <dsahern at gmail.com>
+Cc: Namhyung Kim <namhyung at kernel.org>
+Cc: Paul Mackerras <paulus at samba.org>
+Cc: Peter Zijlstra <a.p.zijlstra at chello.nl>
+Cc: Rabin Vincent <rabin.vincent at axis.com>
+Link: http://lkml.kernel.org/r/1432914178-24086-1-git-send-email-jolsa@kernel.org
+Signed-off-by: Arnaldo Carvalho de Melo <acme at redhat.com>
+---
+ tools/build/Makefile.build         | 2 +-
+ tools/build/tests/ex/Build         | 1 +
+ tools/build/tests/ex/empty2/README | 2 ++
+ 3 files changed, 4 insertions(+), 1 deletion(-)
+ create mode 100644 tools/build/tests/ex/empty2/README
+
+diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build
+index 10df572..69c35cf 100644
+--- a/tools/build/Makefile.build
++++ b/tools/build/Makefile.build
+@@ -37,7 +37,7 @@ subdir-obj-y :=
+ 
+ # Build definitions
+ build-file := $(dir)/Build
+-include $(build-file)
++-include $(build-file)
+ 
+ quiet_cmd_flex  = FLEX     $@
+ quiet_cmd_bison = BISON    $@
+diff --git a/tools/build/tests/ex/Build b/tools/build/tests/ex/Build
+index 0e6c3e6..70d8762 100644
+--- a/tools/build/tests/ex/Build
++++ b/tools/build/tests/ex/Build
+@@ -2,6 +2,7 @@ ex-y += ex.o
+ ex-y += a.o
+ ex-y += b.o
+ ex-y += empty/
++ex-y += empty2/
+ 
+ libex-y += c.o
+ libex-y += d.o
+diff --git a/tools/build/tests/ex/empty2/README b/tools/build/tests/ex/empty2/README
+new file mode 100644
+index 0000000..2107cc5
+--- /dev/null
++++ b/tools/build/tests/ex/empty2/README
+@@ -0,0 +1,2 @@
++This directory is left intentionally without Build file
++to test proper nesting into Build-less directories.
+-- 
+2.1.4
+
-- 
2.1.4
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