libbsd: add patch for clock_gettime usage

From 188049ac7adcabfa66e5b6a674ac28a2f7da81f3 Mon Sep 17 00:00:00 2001

From: Gustavo Zacarias <gustavo@zacarias.com.ar>

Date: Fri, 12 Feb 2016 11:06:58 -0300

Subject: [PATCH] build: clock_gettime might need librt

In older glibc versions (< 2.17) clock_gettime is in librt.

Add a check for this to avoid build breakage for programs/libraries that

use libbsd on such systems.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>

---

Patch status: submitted upstream

 configure.ac    | 5 +++++

 src/Makefile.am | 2 ++

 2 files changed, 7 insertions(+)

diff --git a/configure.ac b/configure.ac

index d334774..1862d19 100644

--- a/configure.ac

+++ b/configure.ac

@@ -44,6 +44,11 @@ AC_SUBST([TESTU01_LIBS])

 AM_CONDITIONAL([HAVE_LIBTESTU01],

                [test "x$ac_cv_lib_testu01_unif01_CreateExternGenBits" = "xyes"])

+# In old glibc versions (< 2.17) clock_gettime() is in librt

+AC_SEARCH_LIBS([clock_gettime], [rt],

+             [LIB_CLOCK_GETTIME="-lrt"])

+AC_SUBST([LIB_CLOCK_GETTIME])

+

 # Checks for header files.

 AC_CHECK_HEADERS([sys/ndir.h sys/dir.h ndir.h dirent.h])

diff --git a/src/Makefile.am b/src/Makefile.am

index 4649937..6b705f0 100644

--- a/src/Makefile.am

+++ b/src/Makefile.am

@@ -52,6 +52,8 @@ hash/md5hl.c: $(srcdir)/hash/helper.c

 libbsd_la_DEPENDENCIES = \

 	$(libbsd_la_included_sources) \

 	libbsd.map

+libbsd_la_LIBADD = \

+	$(LIB_CLOCK_GETTIME)

 libbsd_la_LDFLAGS = \

 	-Wl,--version-script=$(srcdir)/libbsd.map \

 	-version-number $(LIBBSD_ABI)

-- 

2.4.10

LIBBSD_SITE = http://libbsd.freedesktop.org/releases

LIBBSD_LICENSE = BSD-3c, MIT

LIBBSD_LICENSE_FILES = COPYING

LIBBSD_INSTALL_STAGING = YES

# For 0001-build-clock_gettime-might-need-librt.patch

LIBBSD_AUTORECONF = YES

$(eval $(autotools-package))