linux-kernel - [PATCH 10/20] perf tools: Improve Python feature detection messages

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Date:	Tue,  3 Mar 2015 00:25:59 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org, David Ahern <david.ahern@...cle.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 10/20] perf tools: Improve Python feature detection messages

From: Ingo Molnar <mingo@...nel.org>

Change the Python detection message from:

  config/Makefile:566: No python-config tool was found
  config/Makefile:566: Python support will not be built

  config/Makefile:565: No 'python-config' tool was found: disables Python support - please install python-devel/python-dev

It's now a standard one-line message with a package install suggestion,
and it also uses the standard language used by other feature detection
messages.

Signed-off-by: Ingo Molnar <mingo@...nel.org>
Cc: David Ahern <david.ahern@...cle.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Link: http://lkml.kernel.org/r/20150228083345.GB31887@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/config/Makefile | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index c3570b5f3bf3..d3efeef58ded 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -548,22 +548,21 @@ endif
 disable-python = $(eval $(disable-python_code))
 define disable-python_code
   CFLAGS += -DNO_LIBPYTHON
-  $(if $(1),$(warning No $(1) was found))
-  $(warning Python support will not be built)
+  $(warning $1)
   NO_LIBPYTHON := 1
 endef
 
 ifdef NO_LIBPYTHON
-  $(call disable-python)
+  $(call disable-python,Python support disabled by user)
 else
 
   ifndef PYTHON
-    $(call disable-python,python interpreter)
+    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
   else
     PYTHON_WORD := $(call shell-wordify,$(PYTHON))
 
     ifndef PYTHON_CONFIG
-      $(call disable-python,python-config tool)
+      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
     else
 
       PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
@@ -575,7 +574,7 @@ else
       FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
 
       ifneq ($(feature-libpython), 1)
-        $(call disable-python,Python.h (for Python 2.x))
+        $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
       else
 
         ifneq ($(feature-libpython-version), 1)
-- 
1.9.3

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