From d89f6dc3d68cefc83b196863381d11c80b96460b Mon Sep 17 00:00:00 2001
From: octo <octo>
Date: Fri, 21 Apr 2006 14:28:23 +0000
Subject: [PATCH] Only link against libraries that are needed. E.g., don't link
 evey plugin to `libkstat' but only those who actually use it.

---
 configure.in    | 23 +++++++++++------------
 src/Makefile.am | 45 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+), 12 deletions(-)

diff --git a/configure.in b/configure.in
index 7100049e..e6cb528c 100644
--- a/configure.in
+++ b/configure.in
@@ -264,12 +264,15 @@ AC_HEADER_TIME
 #
 AC_PROG_GCC_TRADITIONAL
 AC_CHECK_FUNCS(gettimeofday select strdup strtol)
-AC_CHECK_FUNCS(socket, , AC_CHECK_LIB(socket, socket))
 AC_CHECK_FUNCS(getaddrinfo getnameinfo)
 AC_CHECK_FUNCS(strchr memcpy strstr strcmp strncmp strncpy strlen)
 AC_CHECK_FUNCS(strncasecmp strcasecmp)
 AC_CHECK_FUNCS(openlog syslog closelog)
 
+socket_needs_socket="no"
+AC_CHECK_FUNCS(socket, [], AC_CHECK_LIB(socket, socket, [socket_needs_socket="yes"], AC_MSG_ERROR(cannot find socket)))
+AM_CONDITIONAL(BUILD_WITH_LIBSOCKET, test "x$socket_needs_socket" = "xyes")
+
 nanosleep_needs_rt="no"
 AC_CHECK_FUNCS(nanosleep, [], AC_CHECK_LIB(rt, nanosleep, [nanosleep_needs_rt="yes"], AC_MSG_ERROR(cannot find nanosleep)))
 AM_CONDITIONAL(BUILD_WITH_LIBRT, test "x$nanosleep_needs_rt" = "xyes")
@@ -400,14 +403,6 @@ case $host_os in
 esac
 AC_MSG_RESULT([$ac_system])
 
-with_libsocket="yes"
-AC_CHECK_LIB(socket, socket,
-[
-	AC_DEFINE(HAVE_LIBSOCKET, 1, [Define to 1 if you have the 'socket' library (-lsocket).])
-],
-[with_libsocket="no"])
-AM_CONDITIONAL(BUILD_WITH_LIBSOCKET, test "x$with_libsocket" = "xyes")
-
 with_libresolv="yes"
 AC_CHECK_LIB(resolv, res_search,
 [
@@ -480,16 +475,19 @@ AM_CONDITIONAL(BUILD_WITH_RRDTOOL, test "x$with_rrdtool" = "xyes")
 if test "$ac_system" = "Solaris"
 then
 	with_kstat="yes"
+	with_devinfo="yes"
 else
 	with_kstat="no (Solaris only)"
+	with_devinfo="no (Solaris only)"
 fi
+
 if test "x$with_kstat" = "xyes"
 then
-	AC_CHECK_LIB(kstat, kstat_open,, [with_kstat="no (libkstat not found)"])
+	AC_CHECK_LIB(kstat, kstat_open, [with_kstat="yes"], [with_kstat="no (libkstat not found)"])
 fi
 if test "x$with_kstat" = "xyes"
 then
-	AC_CHECK_LIB(devinfo, di_init)
+	AC_CHECK_LIB(devinfo, di_init, [with_devinfo="yes"], [with_devinfo="no (not found)"])
 	AC_CHECK_HEADERS(kstat.h,, [with_kstat="no (kstat.h not found)"])
 fi
 if test "x$with_kstat" = "xyes"
@@ -500,7 +498,8 @@ else
 fi
 AC_DEFINE_UNQUOTED(COLLECT_KSTAT, [$collect_kstat],
 	[Wether or not to use kstat library (Solaris)])
-AM_CONDITIONAL(BUILD_WITH_KSTAT, test "x$with_kstat" = "xyes")
+AM_CONDITIONAL(BUILD_WITH_LIBKSTAT, test "x$with_kstat" = "xyes")
+AM_CONDITIONAL(BUILD_WITH_LIBDEVINFO, test "x$with_devinfo" = "xyes")
 
 ### BEGIN of check for libcurl ###
 with_curl_config="curl-config"
diff --git a/src/Makefile.am b/src/Makefile.am
index e3cf843c..bd0f080f 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -41,6 +41,12 @@ endif
 if BUILD_WITH_LIBRESOLV
 collectd_LDFLAGS += -lresolv
 endif
+if BUILD_WITH_LIBKSTAT
+collectd_LDFLAGS += -lkstat
+endif
+if BUILD_WITH_LIBDEVINFO
+collectd_LDFLAGS += -ldevinfo
+endif
 
 collectd_LDADD = $(LIBLTDL) libconfig/libconfig.la "-dlopen" self
 collectd_DEPENDENCIES = $(LIBLTDL) libconfig/libconfig.la
@@ -84,6 +90,12 @@ if BUILD_MODULE_CPU
 pkglib_LTLIBRARIES += cpu.la
 cpu_la_SOURCES = cpu.c
 cpu_la_LDFLAGS = -module -avoid-version
+if BUILD_WITH_LIBKSTAT
+cpu_la_LDFLAGS += -lkstat
+endif
+if BUILD_WITH_LIBDEVINFO
+cpu_la_LDFLAGS += -ldevinfo
+endif
 collectd_LDADD += "-dlopen" cpu.la
 collectd_DEPENDENCIES += cpu.la
 endif
@@ -108,6 +120,12 @@ if BUILD_MODULE_DISK
 pkglib_LTLIBRARIES += disk.la
 disk_la_SOURCES = disk.c
 disk_la_LDFLAGS = -module -avoid-version
+if BUILD_WITH_LIBKSTAT
+disk_la_LDFLAGS += -lkstat
+endif
+if BUILD_WITH_LIBDEVINFO
+disk_la_LDFLAGS += -ldevinfo
+endif
 if BUILD_WITH_LIBIOKIT
 disk_la_LDFLAGS += -lIOKit
 endif
@@ -130,6 +148,9 @@ if BUILD_MODULE_HDDTEMP
 pkglib_LTLIBRARIES += hddtemp.la
 hddtemp_la_SOURCES = hddtemp.c
 hddtemp_la_LDFLAGS = -module -avoid-version
+if BUILD_WITH_LIBSOCKET
+hddtemp_la_LDFLAGS += -lsocket
+endif
 collectd_LDADD += "-dlopen" hddtemp.la
 collectd_DEPENDENCIES += hddtemp.la
 endif
@@ -146,6 +167,12 @@ if BUILD_MODULE_MEMORY
 pkglib_LTLIBRARIES += memory.la
 memory_la_SOURCES = memory.c
 memory_la_LDFLAGS = -module -avoid-version
+if BUILD_WITH_LIBKSTAT
+memory_la_LDFLAGS += -lkstat
+endif
+if BUILD_WITH_LIBDEVINFO
+memory_la_LDFLAGS += -ldevinfo
+endif
 collectd_LDADD += "-dlopen" memory.la
 collectd_DEPENDENCIES += memory.la
 endif
@@ -210,6 +237,12 @@ if BUILD_MODULE_SWAP
 pkglib_LTLIBRARIES += swap.la
 swap_la_SOURCES = swap.c
 swap_la_LDFLAGS = -module -avoid-version
+if BUILD_WITH_LIBKSTAT
+swap_la_LDFLAGS += -lkstat
+endif
+if BUILD_WITH_LIBDEVINFO
+swap_la_LDFLAGS += -ldevinfo
+endif
 collectd_LDADD += "-dlopen" swap.la
 collectd_DEPENDENCIES += swap.la
 endif
@@ -218,6 +251,12 @@ if BUILD_MODULE_TAPE
 pkglib_LTLIBRARIES += tape.la
 tape_la_SOURCES = tape.c
 tape_la_LDFLAGS = -module -avoid-version
+if BUILD_WITH_LIBKSTAT
+tape_la_LDFLAGS += -lkstat
+endif
+if BUILD_WITH_LIBDEVINFO
+tape_la_LDFLAGS += -ldevinfo
+endif
 collectd_LDADD += "-dlopen" tape.la
 collectd_DEPENDENCIES += tape.la
 endif
@@ -226,6 +265,12 @@ if BUILD_MODULE_TRAFFIC
 pkglib_LTLIBRARIES += traffic.la
 traffic_la_SOURCES = traffic.c
 traffic_la_LDFLAGS = -module -avoid-version
+if BUILD_WITH_LIBKSTAT
+traffic_la_LDFLAGS += -lkstat
+endif
+if BUILD_WITH_LIBDEVINFO
+traffic_la_LDFLAGS += -ldevinfo
+endif
 collectd_LDADD += "-dlopen" traffic.la
 collectd_DEPENDENCIES += traffic.la
 endif
-- 
2.30.2