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collectd: Fix build with clang

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Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
This commit is contained in:
Khem Raj 2017-08-08 14:47:59 -07:00 committed by Martin Jansa
parent 2d07918e9c
commit 4febf0dafb
1 changed files with 8 additions and 4 deletions
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12
meta-oe/recipes-extended/collectd/collectd/0001-configure-Check-for-Wno-error-format-truncation-comp.patch
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@ -1,14 +1,18 @@
From 14d469bc82c758116aef7d549abd49c131b4170f Mon Sep 17 00:00:00 2001
From b459c55e4968321e5a82272cb39aa69d4054990f Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sat, 22 Apr 2017 11:54:57 -0700
Subject: [PATCH] configure: Check for -Wno-error=format-truncation compiler
option
If this option is supported by compiler then disable it ( gcc7+)
Use -Werror to elevate the warning to an error in case compiler like clang
which warn about unknown options but not error out unless asked for
Fixes
client.c:834:23: error: '%s' directive output may be truncated writing up to 1023 bytes into a region of size 1010 [-Werror=format-truncation=]
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
configure.ac | 3 +-
m4/ax_check_compile_flag.m4 | 74 +++++++++++++++++++++++++++++++++++++++++++++
@ -16,7 +20,7 @@ Signed-off-by: Khem Raj <raj.khem@gmail.com>
create mode 100644 m4/ax_check_compile_flag.m4
diff --git a/configure.ac b/configure.ac
index 8854542..f3a6b57 100644
index 8854542..edb8cfb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,6 @@ AC_INIT([collectd],[m4_esyscmd(./version-gen.sh)])
@ -31,7 +35,7 @@ index 8854542..f3a6b57 100644
AM_CFLAGS="$AM_CFLAGS -Werror"
AM_CXXFLAGS="$AM_CXXFLAGS -Werror"
fi
+AX_CHECK_COMPILE_FLAG([-Werror=format-truncation],[AM_CFLAGS="$AM_CFLAGS -Wno-error=format-truncation" AM_CXXFLAGS="$AM_CXXFLAGS -Wno-error=format-truncation"])
+AX_CHECK_COMPILE_FLAG([-Werror -Werror=format-truncation],[AM_CFLAGS="$AM_CFLAGS -Wno-error=format-truncation" AM_CXXFLAGS="$AM_CXXFLAGS -Wno-error=format-truncation"])
+
AC_SUBST([AM_CFLAGS])
AC_SUBST([AM_CXXFLAGS])
@ -117,5 +121,5 @@ index 0000000..dcabb92
+AS_VAR_POPDEF([CACHEVAR])dnl
+])dnl AX_CHECK_COMPILE_FLAGS
--
2.12.2
2.13.4