Don't link support/* against systemd libs.

* Makefile.in: Link httpd using $(HTTPD_LIBS).

* configure.in: Add systemd to HTTPD_LIBS rather than LIBS.  Add PCRE
  libs to HTTPD_LIBS.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1528034 13f79535-47bb-0310-9956-ffa450edef68

Makefile.in

@@ -4,7 +4,7 @@ CLEAN_SUBDIRS = test
 
 PROGRAM_NAME         = $(progname)
 PROGRAM_SOURCES      = modules.c
-PROGRAM_LDADD        = buildmark.o $(HTTPD_LDFLAGS) $(PROGRAM_DEPENDENCIES) $(PCRE_LIBS) $(EXTRA_LIBS) $(AP_LIBS) $(LIBS)
+PROGRAM_LDADD        = buildmark.o $(HTTPD_LDFLAGS) $(PROGRAM_DEPENDENCIES) $(HTTPD_LIBS) $(EXTRA_LIBS) $(AP_LIBS) $(LIBS)
 PROGRAM_PRELINK      = $(COMPILE) -c $(top_srcdir)/server/buildmark.c
 PROGRAM_DEPENDENCIES = \
   server/libmain.la \

configure.in

@@ -242,6 +242,7 @@ if test "$PCRE_CONFIG" != "false"; then
   AC_MSG_NOTICE([Using external PCRE library from $PCRE_CONFIG])
   APR_ADDTO(PCRE_INCLUDES, [`$PCRE_CONFIG --cflags`])
   APR_ADDTO(PCRE_LIBS, [`$PCRE_CONFIG --libs`])
+  APR_ADDTO(HTTPD_LIBS, [\$(PCRE_LIBS)])
 else
   AC_MSG_ERROR([pcre-config for libpcre not found. PCRE is required and available from http://pcre.org/])
 fi
@@ -521,7 +522,7 @@ case $host in
       if test "${ac_cv_header_systemd_sd_daemon_h}" = "no" || test -z "${SYSTEMD_LIBS}"; then
         AC_MSG_WARN([Your system does not support systemd.])
       else
-        APR_ADDTO(LIBS, $SYSTEMD_LIBS)
+        APR_ADDTO(HTTPD_LIBS, [$SYSTEMD_LIBS])
         AC_DEFINE(HAVE_SYSTEMD, 1, [Define if systemd is supported])
       fi
 esac
@@ -705,6 +706,7 @@ APACHE_SUBST(OS_DIR)
 APACHE_SUBST(BUILTIN_LIBS)
 APACHE_SUBST(SHLIBPATH_VAR)
 APACHE_SUBST(OS_SPECIFIC_VARS)
+APACHE_SUBST(HTTPD_LIBS)
 
 PRE_SHARED_CMDS='echo ""'
 POST_SHARED_CMDS='echo ""'