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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2012-11-17 12:24:04 (GMT)
committer Peter Korsgaard <jacmet@sunsite.dk>2012-11-17 22:41:58 (GMT)
commit7603f9d38af9d950686319d0ded621e82f4f1694 (patch)
tree8e8baa73ce8e39a8b24add7345ca8a104d1428af
parent29b792690b4939b414fef1ad06f71c53feb1ed75 (diff)
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gsl: fix build on !i386 uClibc
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> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
-rw-r--r--package/gsl/gsl.mk13
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))