diff --git a/SConstruct b/SConstruct
index d39b561cc..975b10048 100644
--- a/SConstruct
+++ b/SConstruct
@@ -577,8 +577,11 @@ elif env['env_vars']:
         else:
             print 'WARNING: failed to propagate environment variable', name
 
-env.Append(CPPPATH=env['extra_inc_dirs'].split(':'),
-           LIBPATH=env['extra_lib_dirs'].split(':'))
+env['extra_inc_dirs'] = [d for d in env['extra_inc_dirs'].split(':') if d]
+env['extra_lib_dirs'] = [d for d in env['extra_lib_dirs'].split(':') if d]
+
+env.Append(CPPPATH=env['extra_inc_dirs'],
+           LIBPATH=env['extra_lib_dirs'])
 
 # Try to find a Fortran compiler:
 if env['f90_interface'] in ('y','default'):
diff --git a/platform/posix/Cantera.mak.in b/platform/posix/Cantera.mak.in
index 4009ea2f1..89c0fe330 100644
--- a/platform/posix/Cantera.mak.in
+++ b/platform/posix/Cantera.mak.in
@@ -27,17 +27,23 @@ CANTERA_VERSION=@cantera_version@
 
 CANTERA_CORE_INCLUDES=-I@ct_incroot@
 
+CANTERA_EXTRA_INCLUDES=@mak_extra_includes@
+
 # Required Cantera libraries
 CANTERA_CORE_LIBS=@mak_threadflags@ -L@ct_libdir@ @mak_corelibs@
 
 CANTERA_CORE_LIBS_DEP = @ct_libdir@/libcantera.a
 
+CANTERA_EXTRA_LIBDIRS=@mak_extra_libdirs@
+
 CANTERA_CORE_FTN=-L@ct_libdir@ -lcantera_fortran @mak_corelibs@
 
 CANTERA_FORTRAN_MODS=@ct_incroot@/cantera
 
 CANTERA_FORTRAN_SYSLIBS=@mak_fort_threadflags@ -lstdc++
 
+CANTERA_SYSLIBS=@mak_syslibs@
+
 ###############################################################################
 #            BOOST
 ###############################################################################
@@ -59,7 +65,7 @@ CANTERA_SUNDIALS_LIBS=@mak_sundials_libdir@ @mak_sundials_libs@
 CANTERA_have_blas_lapack_dir=@mak_have_blas_lapack_dir@
 
 ifeq ($(CANTERA_have_blas_lapack_dir), 1)
-CANTERA_BLAS_LAPACK_LIBS=-L@blas_lapack_dir@
+CANTERA_BLAS_LAPACK_LIBS=-L@blas_lapack_dir@ @mak_blas_lapack_libs@
 else
 CANTERA_BLAS_LAPACK_LIBS=@mak_blas_lapack_libs@
 endif
@@ -75,16 +81,17 @@ CANTERA_F2C_LIBS= @mak_f2c_lib@
 ###############################################################################
 
 CANTERA_INCLUDES=$(CANTERA_CORE_INCLUDES) $(CANTERA_SUNDIALS_INCLUDE) \
-                 $(CANTERA_BOOST_INCLUDES)
+                 $(CANTERA_BOOST_INCLUDES) $(CANTERA_EXTRA_INCLUDES)
 
 CANTERA_TOTAL_INCLUDES = $(CANTERA_INCLUDES)
 
 # Add this into the compilation environment to identify the version number
 CANTERA_DEFINES = -DCANTERA_VERSION=@cantera_version@
 
-CANTERA_LIBS=$(CANTERA_CORE_LIBS) $(CANTERA_SUNDIALS_LIBS) \
+CANTERA_LIBS=$(CANTERA_CORE_LIBS) \
+             $(CANTERA_EXTRA_LIBDIRS) $(CANTERA_SUNDIALS_LIBS) \
              $(CANTERA_BLAS_LAPACK_LIBS) $(CANTERA_BOOST_LIBS) \
-	     $(CANTERA_F2C_LIBS)
+             $(CANTERA_F2C_LIBS) $(CANTERA_SYSLIBS)
 
 CANTERA_TOTAL_LIBS=$(CANTERA_LIBS)
 
@@ -93,7 +100,8 @@ CANTERA_TOTAL_LIBS_DEP= $(CANTERA_CORE_LIBS_DEP) \
                         $(CANTERA_BLAS_LAPACK_LIBS_DEP)
 
 
-CANTERA_FORTRAN_LIBS=$(CANTERA_CORE_FTN) $(CANTERA_SUNDIALS_LIBS) \
+CANTERA_FORTRAN_LIBS=$(CANTERA_CORE_FTN) \
+                     $(CANTERA_EXTRA_LIBDIRS) $(CANTERA_SUNDIALS_LIBS) \
                      $(CANTERA_BLAS_LAPACK_LIBS) $(CANTERA_F2C_LIBS) \
                      $(CANTERA_BOOST_LIBS) $(CANTERA_FORTRAN_SYSLIBS)
 
diff --git a/platform/posix/SConscript b/platform/posix/SConscript
index 740884dc1..bca22a9cc 100644
--- a/platform/posix/SConscript
+++ b/platform/posix/SConscript
@@ -33,6 +33,12 @@ localenv['mak_corelibs'] = '-lcantera'
 if not env['single_library']:
     localenv['mak_corelibs'] += ' -lctmath -lexecstream'
 
+localenv['mak_extra_includes'] = ['-I%s' % s for s in localenv['extra_inc_dirs']]
+pc_incdirs.extend(localenv['extra_inc_dirs'])
+
+localenv['mak_extra_libdirs'] = ['-L%s' % s for s in localenv['extra_lib_dirs']]
+pc_libdirs.extend(localenv['extra_lib_dirs'])
+
 if env['use_sundials'] == 'n':
     localenv['mak_sundials_libs'] = '-lcvode'
     localenv['mak_sundials_libdir'] = ''
@@ -80,6 +86,10 @@ elif not env['single_library']:
 else:
     localenv['mak_blas_lapack_libs'] = ''
 
+if 'Accelerate' in localenv['FRAMEWORKS']:
+    localenv['mak_blas_lapack_libs'] += ' -framework Accelerate'
+    pc_cflags.append('-framework Accelerate')
+
 localenv['mak_threadflags'] = localenv['thread_flags']
 if '-pthread' in localenv['thread_flags']:
     localenv['mak_fort_threadflags'] = '-lpthread'
@@ -91,6 +101,10 @@ else:
 #  Handle f2c Linkage
 localenv['mak_f2c_lib'] = '-lctf2c' if localenv['build_with_f2c'] and not env['single_library'] else ''
 
+if not localenv['build_with_f2c']:
+    localenv['mak_syslibs'] = ' '.join('-l%s' % s for s in localenv['FORTRANSYSLIBS'])
+    pc_libs.extend(localenv['FORTRANSYSLIBS'])
+
 mak = build(localenv.SubstFile('Cantera.mak', 'Cantera.mak.in'))
 install('$inst_incdir', mak)