From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 1/2] package/Makefile.in should grab HOST_DIR headers using -isystem instead of -I.
Date: Fri, 29 Jul 2016 09:32:18 +0200 [thread overview]
Message-ID: <20160729093218.36d66c86@free-electrons.com> (raw)
In-Reply-To: <48B4EC85-773A-4F99-96D4-59577018BAB3@gmail.com>
Hello,
On Thu, 28 Jul 2016 15:04:18 -0700, Khem Raj wrote:
> >> -HOST_CPPFLAGS = -I$(HOST_DIR)/usr/include
> >> +HOST_CPPFLAGS = -isystem $(HOST_DIR)/usr/include
>
> This is quite intrusive change. avoid -isystems since it interferes with the
> default include ordering of gcc and will cause compile failure since it wont
> be able to find headers in some cases. So many packages will fail to build.
> especially gcc-6.x will hit hard
Can you give some more details? Did you look at the original commit log
for this change? It pointed out some real problems when using -I, which
in theory should be resolved by using -isystem.
Best regards,
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
next prev parent reply other threads:[~2016-07-29 7:32 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-25 19:52 [Buildroot] [PATCH 1/2] package/Makefile.in should grab HOST_DIR headers using -isystem instead of -I David Raeman
2016-07-25 19:52 ` [Buildroot] [PATCH 2/2] host-dtc: Install libftd and associated header files David Raeman
2016-07-25 20:01 ` Thomas Petazzoni
2016-07-25 20:26 ` David Raeman
2016-07-25 21:39 ` Yann E. MORIN
2016-07-25 21:52 ` [Buildroot] [PATCH 1/2] package/Makefile.in should grab HOST_DIR headers using -isystem instead of -I Yann E. MORIN
2016-07-25 21:57 ` Thomas Petazzoni
2016-07-28 22:00 ` Yann E. MORIN
2016-07-28 22:04 ` Khem Raj
2016-07-29 7:32 ` Thomas Petazzoni [this message]
2016-07-29 8:16 ` Khem Raj
2016-07-29 9:23 ` Thomas Petazzoni
2016-07-29 15:08 ` Khem Raj
2016-07-29 19:35 ` David Raeman
2016-07-29 21:15 ` Yann E. MORIN
2016-07-30 14:57 ` David Raeman
2016-08-05 4:32 ` Khem Raj
2016-08-05 4:30 ` Khem Raj
2016-08-02 21:39 ` Thomas Petazzoni
2016-07-29 0:09 ` David Raeman
2016-07-29 4:18 ` [Buildroot] [PATCH 1/1] host-python: Find headers provided by -isystem flag in CPPFLAGS David Raeman
2016-08-01 21:59 ` [Buildroot] [PATCH 1/2] package/Makefile.in should grab HOST_DIR headers using -isystem instead of -I Yann E. MORIN
2016-08-01 22:19 ` Yann E. MORIN
2016-08-02 12:21 ` David Raeman
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