--disable-shared & C perf tests: a better way

configure.in

@@ -18,6 +18,7 @@ AC_PROG_LIBTOOL
 
 # Checks for libraries.
 AC_CHECK_LIB(pthread, pthread_create)
+AC_CHECK_LIB(stdc++, malloc)
 
 # Host speciffic checks
 AC_CANONICAL_HOST

perf/c/Makefile.am

@@ -2,19 +2,19 @@ INCLUDES = -I$(top_builddir)/include
 
 bin_PROGRAMS = local_lat remote_lat local_thr remote_thr
 
-local_lat_LDADD = $(top_builddir)/src/libzmq.la -lstdc++
+local_lat_LDADD = $(top_builddir)/src/libzmq.la
 local_lat_SOURCES = local_lat.c
 local_lat_CXXFLAGS = -Wall -pedantic -Werror
 
-remote_lat_LDADD = $(top_builddir)/src/libzmq.la -lstdc++
+remote_lat_LDADD = $(top_builddir)/src/libzmq.la
 remote_lat_SOURCES = remote_lat.c
 remote_lat_CXXFLAGS = -Wall -pedantic -Werror
 
-local_thr_LDADD = $(top_builddir)/src/libzmq.la -lstdc++
+local_thr_LDADD = $(top_builddir)/src/libzmq.la
 local_thr_SOURCES = local_thr.c
 local_thr_CXXFLAGS = -Wall -pedantic -Werror
 
-remote_thr_LDADD = $(top_builddir)/src/libzmq.la -lstdc++
+remote_thr_LDADD = $(top_builddir)/src/libzmq.la
 remote_thr_SOURCES = remote_thr.c
 remote_thr_CXXFLAGS = -Wall -pedantic -Werror
 

src/platform.hpp.in

@@ -36,6 +36,9 @@
 /* Define to 1 if you have the `socket' library (-lsocket). */
 #undef HAVE_LIBSOCKET
 
+/* Define to 1 if you have the `stdc++' library (-lstdc++). */
+#undef HAVE_LIBSTDC__
+
 /* Define to 1 if you have the `uuid' library (-luuid). */
 #undef HAVE_LIBUUID