configure.in: use AC_SEARCH_LIBS (not AC_CHECK_LIB)
authorAlexander Barton <alex@barton.de>
Thu, 13 Sep 2012 14:40:04 +0000 (16:40 +0200)
committerAlexander Barton <alex@barton.de>
Thu, 13 Sep 2012 14:40:04 +0000 (16:40 +0200)
Use the AC_SEARCH_LIBS macro to test for "sometimes but not always"
required libraries, not AC_CHECK_LIB.

configure.in

index 5be4a541c22cf6a6f3d29cb65bf50dcd6c30a73f..468e927b4644088c82fae7b83ab3d84fbe10df9e 100644 (file)
@@ -147,11 +147,18 @@ AC_CHECK_MEMBER([struct sockaddr_in.sin_len], AC_DEFINE(HAVE_sockaddr_in_len),,
 
 # -- Libraries --
 
-# A/UX needs this.
-AC_CHECK_LIB(UTIL,memmove)
-# needed on solaris. GNU libc also has a libnsl, but we do not need it.
-AC_SEARCH_LIBS(gethostbyname,nsl)
-AC_CHECK_LIB(socket,bind)
+# memmove: A/UX libUTIL
+AC_SEARCH_LIBS([memmove], [UTIL], [], [
+       AC_MSG_ERROR([unable to find the memmove() function])
+])
+# gethostbyname: Solaris libnsl
+AC_SEARCH_LIBS([gethostbyname], [nsl], [], [
+       AC_MSG_ERROR([unable to find the gethostbyname() function])
+])
+# bind: SVR4 libsocket
+AC_SEARCH_LIBS([bind], [socket], [], [
+       AC_MSG_ERROR([unable to find the bind() function])
+])
 
 # -- Functions --
 
@@ -187,15 +194,12 @@ AC_ARG_WITH(syslog,
                                CPPFLAGS="-I$withval/include $CPPFLAGS"
                                LDFLAGS="-L$withval/lib $LDFLAGS"
                        fi
-                       AC_CHECK_LIB(be, syslog)
-                       AC_CHECK_FUNCS(syslog, x_syslog_on=yes,
+                       AC_SEARCH_LIBS([syslog], [be], [x_syslog_on=yes], [
                                AC_MSG_ERROR([Can't enable syslog!])
-                       )
+                       ])
                fi
        ],
-       [
-               AC_CHECK_LIB(be, syslog)
-               AC_CHECK_FUNCS(syslog, x_syslog_on=yes)
+       [       AC_SEARCH_LIBS([syslog], [be], [x_syslog_on=yes])
        ]
 )
 if test "$x_syslog_on" = "yes"; then