This is the 5.4 version of the fix for bug#47007

   Unresolved reference to 'innodb_system_libs' in "mysql_config"

In 5.4.2, we use InnoDB 1.0.4 which does file IO via separate
threads, opposed to the use of asynchronous IO previously.

So there is no InnoDB call to "aio_read()" which was searched
in "librt", causing a "-lrt" value of "innodb_system_libs",
that whole variable is gone.

This fix was applied in the build of 5.4.2-beta.

scripts/Makefile.am:
  There is no "innodb_system_libs" variable any more,
  so it cannot be replaced by its value.
scripts/mysql_config.pl.in:
  InnoDB does not need any platform-specific libraries any more,
  "innodb_system_libs" may go.
scripts/mysql_config.sh:
  InnoDB does not need any platform-specific libraries any more,
  "innodb_system_libs" may go.

scripts/Makefile.am

@@ -169,7 +169,6 @@ SUFFIXES = .sh
 	  -e 's!@''ZLIB_LIBS''@!@ZLIB_LIBS@!' \
 	  -e 's!@''LIBS''@!@LIBS@!' \
 	  -e 's!@''WRAPLIBS''@!@WRAPLIBS@!' \
-	  -e 's!@''innodb_system_libs''@!@innodb_system_libs@!' \
 	  -e 's!@''openssl_libs''@!@openssl_libs@!' \
 	  -e 's!@''VERSION''@!@VERSION@!' \
 	  -e 's!@''MYSQL_BASE_VERSION''@!@MYSQL_BASE_VERSION@!' \

scripts/mysql_config.pl.in

@@ -202,7 +202,7 @@ $flags->{libs} =
 $flags->{libs_r} =
   [@ldflags,@lib_r_opts,'@ZLIB_DEPS@','@LIBS@','@openssl_libs@'];
 $flags->{embedded_libs} =
-  [@ldflags,@lib_e_opts,'@LIBDL@','@ZLIB_DEPS@','@LIBS@','@WRAPLIBS@','@innodb_system_libs@','@openssl_libs@'];
+  [@ldflags,@lib_e_opts,'@LIBDL@','@ZLIB_DEPS@','@LIBS@','@WRAPLIBS@','@openssl_libs@'];
 
 $flags->{include} = ["-I$pkgincludedir"];
 $flags->{cflags}  = [@{$flags->{include}},split(" ",'@CFLAGS@')];

scripts/mysql_config.sh

@@ -107,7 +107,7 @@ fi
 libs=" $ldflags -L$pkglibdir -lmysqlclient @ZLIB_DEPS@ @NON_THREADED_LIBS@"
 libs="$libs @openssl_libs@ @STATIC_NSS_FLAGS@ "
 libs_r=" $ldflags -L$pkglibdir -lmysqlclient_r @ZLIB_DEPS@ @LIBS@ @openssl_libs@ "
-embedded_libs=" $ldflags -L$pkglibdir -lmysqld @LIBDL@ @ZLIB_DEPS@ @LIBS@ @WRAPLIBS@ @innodb_system_libs@ @openssl_libs@ "
+embedded_libs=" $ldflags -L$pkglibdir -lmysqld @LIBDL@ @ZLIB_DEPS@ @LIBS@ @WRAPLIBS@ @openssl_libs@ "
 
 if [ -r "$pkglibdir/libmygcc.a" ]; then
   # When linking against the static library with a different version of GCC