Build system: create empty directories (needed because of Git migration)

mex/build/matlab/configure.ac

@@ -54,6 +54,7 @@ AC_PROG_CC
 AC_PROG_CXX
 AC_PROG_RANLIB
 AX_PROG_LN_S
+AC_PROG_MKDIR_P
 AX_PTHREAD
 # Check for dlopen(), needed by k_order_perturbation DLL
 AC_CHECK_LIB([dl], [dlopen], [LIBADD_DLOPEN="-ldl"], [])

mex/build/matlab/mex.am

@@ -10,6 +10,7 @@ LDFLAGS += $(MATLAB_LDFLAGS)
 LIBS += $(MATLAB_LIBS)
 
 all-local:
+	$(MKDIR_P) $(top_srcdir)/../../matlab
 	cd $(top_srcdir)/../../matlab && \
 	for p in $(PROGRAMS); do \
 		$(LN_S) -f $(abs_srcdir)/$$p $$p; \

mex/build/octave/configure.ac

@@ -35,6 +35,7 @@ AC_PROG_CC
 AC_PROG_CXX
 AC_PROG_RANLIB
 AX_PROG_LN_S
+AC_PROG_MKDIR_P
 AX_PTHREAD
 # Check for dlopen(), needed by k_order_perturbation DLL
 AC_CHECK_LIB([dl], [dlopen], [LIBADD_DLOPEN="-ldl"], [])

mex/build/octave/mex.am

@@ -22,6 +22,7 @@ LIBS += $(shell $(MKOCTFILE) -p FLIBS)
 LIBS += $(shell $(MKOCTFILE) -p CXXLIBS) # Only used for Octave/MinGW
 
 all-local:
+	$(MKDIR_P) $(top_srcdir)/../../octave
 	cd $(top_srcdir)/../../octave && \
 	for p in $(PROGRAMS); do \
 		$(LN_S) -f $(abs_srcdir)/$$p $$p; \