From: Yann E. MORIN <yann.morin.1998@free.fr>
Date: Tue, 5 Jul 2016 13:31:28 +0000 (+0200)
Subject: configure: also check for clockgettime()
X-Git-Url: https://git.tokkee.org/?p=liboping.git;a=commitdiff_plain;h=6e83f8b261a05afe7bf9fdb9005c4c1aa3e97fed

configure: also check for clockgettime()

clock_gettime() is also in -lrt so we also need to
check for it.

Use AC_SEARCH_LIBS() instead of our canned combo of
AC_CHECK_FUNC() + AC_CHECK_LIB(). AC_SEARCH_LIBS()
will automatically add the necessary -l flags to the
LIBS variable, so we don't need out AM_CONDITIONAL()
construct either, now.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---

diff --git a/configure.ac b/configure.ac
index f83f5ab..aea4efb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -199,12 +199,10 @@ fi
 
 AC_SUBST(LIBOPING_PC_LIBS_PRIVATE)
 
-nanosleep_needs_rt="no"
-AC_CHECK_FUNCS(nanosleep, [],
-	AC_CHECK_LIB(rt, nanosleep,
-		[nanosleep_needs_rt="yes"],
-		AC_MSG_ERROR(cannot find nanosleep)))
-AM_CONDITIONAL(BUILD_WITH_LIBRT, test "x$nanosleep_needs_rt" = "xyes")
+AC_SEARCH_LIBS([nanosleep],[rt],[],
+		[AC_MSG_ERROR([cannot find nanosleep])])
+AC_SEARCH_LIBS([clock_gettime],[rt],[],
+		[AC_MSG_ERROR([cannot find clock_gettime])])
 
 with_ncurses="no"
 AC_CHECK_HEADERS(ncursesw/ncurses.h ncurses.h, [with_ncurses="yes"], [])
diff --git a/src/Makefile.am b/src/Makefile.am
index ec4c398..090d1b2 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -35,9 +35,6 @@ bin_PROGRAMS = oping
 
 oping_SOURCES = oping.c
 oping_LDADD = liboping.la -lm
-if BUILD_WITH_LIBRT
-oping_LDADD += -lrt
-endif
 
 if BUILD_WITH_LIBNCURSES
 bin_PROGRAMS += noping
@@ -45,9 +42,6 @@ bin_PROGRAMS += noping
 noping_SOURCES = oping.c
 noping_CPPFLAGS = $(AM_CPPFLAGS) -DUSE_NCURSES=1
 noping_LDADD = liboping.la -lm $(NCURSES_LIB)
-if BUILD_WITH_LIBRT
-noping_LDADD += -lrt
-endif
 endif # BUILD_WITH_LIBNCURSES
 
 install-exec-hook: