3 files changed, 3 insertions, 7 deletions
diff --git a/unit-tests/test/script/lexer/buildfile b/unit-tests/test/script/lexer/buildfile
index aaeadc9..eb42935 100644
--- a/unit-tests/test/script/lexer/buildfile
+++ b/unit-tests/test/script/lexer/buildfile
@@ -4,8 +4,6 @@
 
 #@@ Temporary until we get utility library support.
 #
-if ($cxx.target.class != "windows")
-  cxx.libs += -lpthread
 import libs = libbutl%lib{butl}
 src = token lexer diagnostics utility variable name b-options types-parsers \
 context scope parser target operation rule prerequisite file module function \
@@ -13,7 +11,7 @@ functions-builtin functions-path functions-process-path functions-string \
 functions-target-triplet algorithm search dump filesystem scheduler \
 config/{utility init operation} test/script/{token lexer}
 
-exe{driver}: cxx{driver} ../../../../build2/cxx{$src} $libs \
+exe{driver}: cxx{driver} ../../../../build2/cxx{$src} ../../../../build2/liba{b} $libs \
 test{command-line first-token second-token command-expansion variable-line \
      description-line variable}
 
diff --git a/unit-tests/test/script/parser/buildfile b/unit-tests/test/script/parser/buildfile
index d25d9bf..85668c9 100644
--- a/unit-tests/test/script/parser/buildfile
+++ b/unit-tests/test/script/parser/buildfile
@@ -4,8 +4,6 @@
 
 #@@ Temporary until we get utility library support.
 #
-if ($cxx.target.class != "windows")
-  cxx.libs += -lpthread
 import libs = libbutl%lib{butl}
 src = token lexer parser diagnostics utility variable name context target \
 scope prerequisite file module operation rule b-options algorithm search \
@@ -14,7 +12,7 @@ functions-string functions-target-triplet config/{utility init operation} \
 dump types-parsers test/{target script/{token lexer parser regex script}} \
 scheduler
 
-exe{driver}: cxx{driver} ../../../../build2/cxx{$src} $libs \
+exe{driver}: cxx{driver} ../../../../build2/cxx{$src} ../../../../build2/liba{b} $libs \
 test{cleanup command-if command-re-parse description directive exit \
      expansion here-document here-string include pipe-expr pre-parse \
      redirect regex scope scope-if setup-teardown}
diff --git a/unit-tests/test/script/regex/buildfile b/unit-tests/test/script/regex/buildfile
index 2a01c38..89f1bc5 100644
--- a/unit-tests/test/script/regex/buildfile
+++ b/unit-tests/test/script/regex/buildfile
@@ -7,6 +7,6 @@
 import libs = libbutl%lib{butl}
 src = test/script/regex
 
-exe{driver}: cxx{driver} ../../../../build2/cxx{$src} $libs
+exe{driver}: cxx{driver} ../../../../build2/cxx{$src} ../../../../build2/liba{b} $libs
 
 include ../../../../build2/