update config to allow custom OFI dir

configure.ac

@@ -18,13 +18,21 @@ AC_ARG_ENABLE([stats],
     [AC_HELP_STRING([--enable-stats],
 		    [Enable statistics (default: disabled)])])
 
+AC_ARG_WITH([ofi],
+    [AC_HELP_STRING([--with-ofi],
+                    [Specify the path to libfabric install dir])],
+            [OFI_PATH="$withval"],
+            [OFI_PATH="/usr/local"])
+
 AC_ARG_WITH([ofi-provider],
     [AC_HELP_STRING([--with-ofi-provider],
                     [Manually select the underlying OFI provider (e.g., verbs, default: none)])],
 		    [AM_CONDITIONAL(WITH_OFI_PROVIDER, true)
 		     AC_DEFINE(ROFI_OFI_PROVIDER,[$with_ofi_provider],[OFI Provider])],
 		    [AM_CONDITIONAL(WITH_OFI_PROVIDER, false)])
 
+LDFLAGS="$LDFLAGS -L$OFI_PATH/lib -Wl,-rpath,$OFI_PATH/lib"
+CPPFLAGS="$CPPFLAGS -I$OFI_PATH/include"
 
 AC_CHECK_HEADERS([stdio.h],       [],[AC_MSG_ERROR[stdio.h  not found!]])
 AC_CHECK_HEADERS([sys/socket.h], [],[AC_MSG_ERROR[sys/socket.h  not found!]])

src/Makefile.am

@@ -7,6 +7,7 @@ librofi_la_SOURCES = api.c core.c rt.c transport.c mr.c #context.c
 librofi_la_SOURCES += include/rofi_atomic.h include/rofi_debug.h include/rofi_internal.h include/mr.h include/rt.h
 librofi_la_LIBADD = $(top_builddir)/src/pmi-simple/libpmi_simple.la
 librofi_la_LDFLAGS = -lm
+AM_LDFLAGS = $(LDFLAGS)
 
 include_HEADERS    = $(abs_top_srcdir)/src/include/rofi.h
 EXTRA_DIST = $(abs_top_srcdir)/src/include/rofi_debug.h

tests/Makefile.am

@@ -41,4 +41,6 @@ rofi_sharray_LDADD        = ../src/librofi.la
 
 rofi_barrier_SOURCES      = barrier.c utils.c utils.h
 rofi_barrier_LDFLAGS      = $(linker_flags)
-rofi_barrier_LDADD        = ../src/librofi.la -lm
+rofi_barrier_LDADD        = ../src/librofi.la -lm
+
+AM_LDFLAGS = $(LDFLAGS)