Use DL_LIBS, remove -ldl from global LIBS and link -ldl only when needed.

WHATS_NEW

@@ -1,5 +1,6 @@
 Version 2.02.62 -
 ====================================
+  Define and use internal makefile variable DL_LIBS.
   Update check for selinux libraries and link them only when needed.
   Define and use internal makefile variable SELINUX_LIBS and STATIC_LIBS.
   Remove -rdynamic from static builds.

configure

@@ -685,6 +685,7 @@ DM_DEVICE_MODE
 DM_DEVICE_GID
 DM_COMPAT
 DMEVENTD
+DL_LIBS
 DEVMAPPER
 DEBUG
 COPTIMISE_FLAG
@@ -12681,23 +12682,21 @@ fi
 { $as_echo "$as_me:$LINENO: result: $ac_cv_lib_dl_dlopen" >&5
 $as_echo "$ac_cv_lib_dl_dlopen" >&6; }
 if test "x$ac_cv_lib_dl_dlopen" = x""yes; then
-  HAVE_LIBDL=yes
-else
-  HAVE_LIBDL=no
-fi
 
 
-if [ "x$HAVE_LIBDL" = xyes ]; then
-
 cat >>confdefs.h <<\_ACEOF
 #define HAVE_LIBDL 1
 _ACEOF
 
-	LIBS="-ldl $LIBS"
+	DL_LIBS="-ldl"
+	HAVE_LIBDL=yes
 else
+
+	DL_LIBS=
 	HAVE_LIBDL=no
 fi
 
+
 ################################################################################
 if [ \( "x$LVM1" = xshared -o "x$POOL" = xshared -o "x$CLUSTER" = xshared \
       -o "x$SNAPSHOTS" = xshared -o "x$MIRRORS" = xshared \
@@ -15559,6 +15558,7 @@ LVM_LIBAPI=`echo "$VER" | $AWK -F '[()]' '{print $2}'`
 
 
 
+
 
 
 ################################################################################

configure.in

@@ -789,14 +789,12 @@ fi;
 
 ################################################################################
 dnl -- Check for dlopen
-AC_CHECK_LIB(dl, dlopen, HAVE_LIBDL=yes, HAVE_LIBDL=no)
-
-if [[ "x$HAVE_LIBDL" = xyes ]]; then
+AC_CHECK_LIB(dl, dlopen, [
 	AC_DEFINE([HAVE_LIBDL], 1, [Define to 1 if dynamic libraries are available.])
-	LIBS="-ldl $LIBS"
-else
-	HAVE_LIBDL=no
-fi
+	DL_LIBS="-ldl"
+	HAVE_LIBDL=yes ], [
+	DL_LIBS=
+	HAVE_LIBDL=no ])
 
 ################################################################################
 dnl -- Check for shared/static conflicts
@@ -1074,6 +1072,7 @@ AC_SUBST(DEBUG)
 AC_SUBST(DEVMAPPER)
 AC_SUBST(DLM_CFLAGS)
 AC_SUBST(DLM_LIBS)
+AC_SUBST(DL_LIBS)
 AC_SUBST(DMEVENTD)
 AC_SUBST(DM_COMPAT)
 AC_SUBST(DM_DEVICE_GID)

daemons/dmeventd/Makefile.in

@@ -53,7 +53,6 @@ include $(top_builddir)/make.tmpl
 all: device-mapper
 device-mapper: $(TARGETS)
 
-LIBS += -ldl
 LVMLIBS += -ldevmapper-event -ldevmapper $(PTHREAD_LIBS)
 
 $(VERSIONED_SHLIB): $(LIB_SHARED)
@@ -62,11 +61,11 @@ $(VERSIONED_SHLIB): $(LIB_SHARED)
 
 dmeventd: $(LIB_SHARED) $(VERSIONED_SHLIB) dmeventd.o
 	$(CC) $(CFLAGS) $(LDFLAGS) -L. -o $@ dmeventd.o \
-	$(LVMLIBS) $(LIBS) -rdynamic
+	$(DL_LIBS) $(LVMLIBS) $(LIBS) -rdynamic
 
 dmeventd.static: $(LIB_STATIC) dmeventd.o $(interfacebuilddir)/libdevmapper.a
 	$(CC) $(CFLAGS) $(LDFLAGS) -static -L. -L$(interfacebuilddir) -o $@ \
-	dmeventd.o $(LVMLIBS) $(STATIC_LIBS) $(LIBS)
+	dmeventd.o $(DL_LIBS) $(LVMLIBS) $(STATIC_LIBS) $(LIBS)
 
 ifeq ("@PKGCONFIG@", "yes")
   INSTALL_LIB_TARGETS += install_pkgconfig

make.tmpl.in

@@ -38,7 +38,8 @@ CLDFLAGS += @CLDFLAGS@
 LDDEPS += @LDDEPS@
 LDFLAGS += @LDFLAGS@
 LIB_SUFFIX = @LIB_SUFFIX@
-LVMINTERNAL_LIBS = -llvm-internal
+LVMINTERNAL_LIBS = -llvm-internal $(DL_LIBS)
+DL_LIBS = @DL_LIBS@
 PTHREAD_LIBS = @PTHREAD_LIBS@
 READLINE_LIBS = @READLINE_LIBS@
 SELINUX_LIBS = @SELINUX_LIBS@