diff --git a/samples/clib/SConscript b/samples/clib/SConscript
index b34b5dcb9a..9aae544b91 100644
--- a/samples/clib/SConscript
+++ b/samples/clib/SConscript
@@ -15,13 +15,11 @@ for programName, sources in samples:
 
     # Generate SConstruct files to be installed
     linkflags = ["-g", localenv["thread_flags"]]
+    incdirs = [localenv["ct_incroot"]]
+    libdirs = [localenv["ct_libdir"]] + localenv["extra_lib_dirs"]
     if not localenv["package_build"]:
         linkflags.append(f"-Wl,-rpath,{localenv['ct_shlibdir']}")
-        incdirs = [localenv["ct_incroot"]]
-        libdirs = [localenv["ct_libdir"]] + localenv["extra_lib_dirs"]
-    else:
-        incdirs = []
-        libdirs = []
+        libdirs.extend(localenv["extra_lib_dirs"])
 
     localenv["tmpl_compiler_flags"] = repr(localenv["CCFLAGS"])
     localenv['tmpl_cantera_incdirs'] = repr([x for x in incdirs if x])
diff --git a/samples/cxx/SConscript b/samples/cxx/SConscript
index 3811457d62..fb6fed045a 100644
--- a/samples/cxx/SConscript
+++ b/samples/cxx/SConscript
@@ -53,6 +53,8 @@ set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} ${OpenMP_EXE_LINKER_FLAGS})
     # by the "RecursiveInstall" that grabs everything in the cxx directory.
 
     flag_excludes = ["$(", "/TP", "$)", "/nologo"]
+    incdirs = [localenv["ct_incroot"]]
+    libdirs = [localenv["ct_libdir"]]
     if localenv["package_build"]:
         # Remove sysroot flags in templated output files. This only applies to the
         # conda package for now.
@@ -60,16 +62,12 @@ set(CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS} ${OpenMP_EXE_LINKER_FLAGS})
         # compatible with the SDK used for building.
         flag_excludes.extend(["-isysroot", "-mmacosx", "-march", "-mtune"
                               "-fdebug-prefix-map"])
-        incdirs = []
-        libdirs = []
     else:
-        incdirs = [localenv["ct_incroot"]]
         incdirs.extend([localenv["sundials_include"], localenv["boost_inc_dir"]])
         incdirs.append(localenv["hdf_include"])
         incdirs.extend(localenv["extra_inc_dirs"])
         incdirs = list(set(incdirs))
 
-        libdirs = [localenv["ct_libdir"]]
         libdirs.extend([localenv["sundials_libdir"], localenv["blas_lapack_dir"]])
         libdirs.append(localenv["hdf_libdir"])
         libdirs.extend(localenv["extra_lib_dirs"])
diff --git a/samples/f77/SConscript b/samples/f77/SConscript
index 7f4fc05af1..6b0efc3567 100644
--- a/samples/f77/SConscript
+++ b/samples/f77/SConscript
@@ -25,6 +25,8 @@ for program_name, fortran_sources in samples:
 linkflags = ["-g", localenv["thread_flags"]]
 
 flag_excludes = ["$(", "/TP", "$)", "/nologo"]
+incdirs = [localenv["ct_incroot"]]
+libdirs = [localenv["ct_libdir"]]
 if localenv["package_build"]:
     # Remove sysroot flags in templated output files. This only applies to the
     # conda package for now.
@@ -32,18 +34,14 @@ if localenv["package_build"]:
     # compatible with the SDK used for building.
     flag_excludes.extend(["-isysroot", "-mmacosx", "-march", "-mtune",
                           "-fdebug-prefix-map"])
-    incdirs = []
-    libdirs = []
 else:
     linkflags.append(f"-Wl,-rpath,{localenv['ct_shlibdir']}")
 
-    incdirs = [localenv["ct_incroot"]]
     incdirs.extend([localenv["sundials_include"], localenv["boost_inc_dir"]])
     incdirs.append(localenv["hdf_include"])
     incdirs.extend(localenv["extra_inc_dirs"])
     incdirs = list(set(incdirs))
 
-    libdirs = [localenv["ct_libdir"]]
     libdirs.extend([localenv["sundials_libdir"], localenv["blas_lapack_dir"]])
     libdirs.append(localenv["hdf_libdir"])
     libdirs.extend(localenv["extra_lib_dirs"])
diff --git a/samples/f90/SConscript b/samples/f90/SConscript
index 714f3515af..99f9550cf5 100644
--- a/samples/f90/SConscript
+++ b/samples/f90/SConscript
@@ -18,16 +18,13 @@ for programName, sources in samples:
     # Generate SConstruct files to be installed
     linkflags = ["-g", localenv["thread_flags"]]
     incdirs = [pjoin(localenv["ct_incroot"], "cantera")] # path to fortran .mod
-    libdirs = []
+    libdirs = [localenv["ct_libdir"]]
     if not localenv["package_build"]:
         linkflags.append(f"-Wl,-rpath,{localenv['ct_shlibdir']}")
-        libdirs = [localenv["ct_libdir"]]
         libdirs.extend([localenv["sundials_libdir"], localenv["blas_lapack_dir"]])
         libdirs.append(localenv["hdf_libdir"])
         libdirs.extend(localenv["extra_lib_dirs"])
         libdirs = list(set(libdirs))
-    else:
-        libdirs = []
 
     libs = ['cantera_fortran'] + localenv['cantera_libs'] + env['cxx_stdlib']