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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 06/10] gsl: fix build on !i386 uClibc
Date: Sat, 17 Nov 2012 23:24:04 +0100	[thread overview]
Message-ID: <03dca9a70c465309e3295c0051d31fd932132cec.1353191025.git.thomas.petazzoni@free-electrons.com> (raw)
In-Reply-To: <cover.1353191025.git.thomas.petazzoni@free-electrons.com>

uClibc pretends to implement <fenv.h> as it installs the header, but
in practice, it only implements the functions for i386. This makes gsl
unhappy as it detects fenv.h, but then cannot use the fenv functions.

Fixes:

  http://autobuild.buildroot.org/results/732cc07faeca2a9098dc5106e8f654eb1323451a/build-end.log

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 package/gsl/gsl.mk |   13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/package/gsl/gsl.mk b/package/gsl/gsl.mk
index 7196859..6591591 100644
--- a/package/gsl/gsl.mk
+++ b/package/gsl/gsl.mk
@@ -10,4 +10,17 @@ GSL_INSTALL_STAGING = YES
 GSL_LICENSE = GPLv3
 GSL_LICENSE_FILES = COPYING
 
+# uClibc pretends to have fenv support as it installs <fenv.h>, but in
+# practice, it only implements it for i386. Problem reported upstream
+# at: http://lists.busybox.net/pipermail/uclibc/2012-October/047067.html.
+# So we tell gsl that fenv related functions are not available in this
+# case.
+ifeq ($(BR2_TOOLCHAIN_BUILDROOT)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)$(BR2_TOOLCHAIN_CTNG_uClibc),y)
+ifneq ($(BR2_i386),y)
+GSL_CONF_ENV = \
+       ac_cv_have_decl_feenableexcept=no \
+       ac_cv_have_decl_fesettrapenable=no
+endif
+endif
+
 $(eval $(autotools-package))
-- 
1.7.9.5

  parent reply	other threads:[~2012-11-17 22:24 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-17 22:23 [Buildroot] [pull request] Pull request for branch misc-fixes Thomas Petazzoni
2012-11-17 22:23 ` [Buildroot] [PATCH 01/10] python: use default configure commands to get shared build Thomas Petazzoni
2012-11-17 22:24 ` [Buildroot] [PATCH 02/10] libxml2: add support for building host library with python support Thomas Petazzoni
2012-11-17 22:24 ` [Buildroot] [PATCH 03/10] mesa3d: requires host-libxml2 and host-python to generate some files Thomas Petazzoni
2012-11-17 22:24 ` [Buildroot] [PATCH 04/10] libatomic_ops: bump to version 7.2 Thomas Petazzoni
2012-11-17 22:24 ` [Buildroot] [PATCH 05/10] gnutls: fix build failure due to non-existing gets in recent C libraries Thomas Petazzoni
2012-11-17 22:24 ` Thomas Petazzoni [this message]
2012-11-17 22:24 ` [Buildroot] [PATCH 07/10] libffi: make thread support optional Thomas Petazzoni
2012-11-17 22:46   ` Peter Korsgaard
2012-11-17 22:24 ` [Buildroot] [PATCH 08/10] php: fix C++ link issue Thomas Petazzoni
2012-11-17 22:24 ` [Buildroot] [PATCH 09/10] attr: fix static build Thomas Petazzoni
2012-11-17 22:24 ` [Buildroot] [PATCH 10/10] dbus: uses fork(), requires MMU Thomas Petazzoni
2012-11-17 22:54 ` [Buildroot] [pull request] Pull request for branch misc-fixes Peter Korsgaard

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