diff options
Diffstat (limited to 'package/util-linux/0002-build-sys-improve-detection-of-the-isnan-function-in.patch')
| -rw-r--r-- | package/util-linux/0002-build-sys-improve-detection-of-the-isnan-function-in.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/package/util-linux/0002-build-sys-improve-detection-of-the-isnan-function-in.patch b/package/util-linux/0002-build-sys-improve-detection-of-the-isnan-function-in.patch new file mode 100644 index 0000000000..5395104df7 --- /dev/null +++ b/package/util-linux/0002-build-sys-improve-detection-of-the-isnan-function-in.patch @@ -0,0 +1,37 @@ +From 064a0445f33a67e5498d492dabe0dfc687859756 Mon Sep 17 00:00:00 2001 +From: Carlos Santos <casantos@datacom.ind.br> +Date: Wed, 8 Feb 2017 09:29:30 -0200 +Subject: [PATCH] build-sys: improve detection of the "isnan" function in + uClibc + +Since commit beceb14b450ded6560ed743634a5e80604a8edf3, MATH_LIBS is set +to "-lm" when the isnan function is detected. In uClibc, however, isnan +is a macro that calls __isnan, __isnanf, or __isnanl, depending on the +size of the argument (double, float or long double). + +Fixes: + http://autobuild.buildroot.net/results/2c2/2c29a78ed81ca844a87dcd076ab3e14ea080296d/ + http://autobuild.buildroot.net/results/404/404b10f359b2ae8a7216729fa1bab37fed2d3d4c/ + +Signed-off-by: Carlos Santos <casantos@datacom.ind.br> +--- + configure.ac | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +diff --git a/configure.ac b/configure.ac +index cc0563b..d03469c 100644 +--- a/configure.ac ++++ b/configure.ac +@@ -428,7 +428,8 @@ AC_CHECK_FUNCS([reboot], [have_reboot=yes],[have_reboot=no]) + AM_CONDITIONAL([HAVE_OPENAT], [test "x$have_openat" = xyes]) + + AC_CHECK_FUNCS([isnan], [], +- [AC_CHECK_LIB([m], [isnan], [MATH_LIBS="-lm"])] ++ [AC_CHECK_LIB([m], [isnan], [MATH_LIBS="-lm"])] ++ [AC_CHECK_LIB([m], [__isnan], [MATH_LIBS="-lm"])] + ) + AC_SUBST([MATH_LIBS]) + +-- +2.7.4 + |
