[Buildroot] [git commit] gsl: fix build on !i386 uClibc
Peter Korsgaard
jacmet at sunsite.dk
Sat Nov 17 22:41:58 UTC 2012
commit: http://git.buildroot.net/buildroot/commit/?id=7603f9d38af9d950686319d0ded621e82f4f1694
branch: http://git.buildroot.net/buildroot/commit/?id=refs/heads/master
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 at free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet at sunsite.dk>
---
package/gsl/gsl.mk | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
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))
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