diff --git a/Makefile b/Makefile
index d06c9a8ffa..549b24e7fd 100644
--- a/Makefile
+++ b/Makefile
@@ -3904,10 +3904,10 @@ GIT-TEST-SUITES: FORCE
 		echo "$$FLAGS" >GIT-TEST-SUITES; \
             fi
 
-$(UNIT_TEST_DIR)/clar-decls.h: $(patsubst %,$(UNIT_TEST_DIR)/%.c,$(CLAR_TEST_SUITES)) GIT-TEST-SUITES
+$(UNIT_TEST_DIR)/clar-decls.h: $(patsubst %,$(UNIT_TEST_DIR)/%.c,$(CLAR_TEST_SUITES)) $(UNIT_TEST_DIR)/generate-clar-decls.sh GIT-TEST-SUITES
 	$(QUIET_GEN)$(SHELL_PATH) $(UNIT_TEST_DIR)/generate-clar-decls.sh "$@" $(filter %.c,$^)
-$(UNIT_TEST_DIR)/clar.suite: $(UNIT_TEST_DIR)/clar-decls.h
-	$(QUIET_GEN)awk -f $(UNIT_TEST_DIR)/clar-generate.awk $< >$(UNIT_TEST_DIR)/clar.suite
+$(UNIT_TEST_DIR)/clar.suite: $(UNIT_TEST_DIR)/clar-decls.h $(UNIT_TEST_DIR)/generate-clar-suites.sh
+	$(QUIET_GEN)$(SHELL_PATH) $(UNIT_TEST_DIR)/generate-clar-suites.sh $< $(UNIT_TEST_DIR)/clar.suite
 $(UNIT_TEST_DIR)/clar/clar.o: $(UNIT_TEST_DIR)/clar.suite
 $(CLAR_TEST_OBJS): $(UNIT_TEST_DIR)/clar-decls.h
 $(CLAR_TEST_OBJS): EXTRA_CPPFLAGS = -I$(UNIT_TEST_DIR)
diff --git a/contrib/buildsystems/CMakeLists.txt b/contrib/buildsystems/CMakeLists.txt
index 8974bb9fa2..8c71f5a1d0 100644
--- a/contrib/buildsystems/CMakeLists.txt
+++ b/contrib/buildsystems/CMakeLists.txt
@@ -1005,11 +1005,19 @@ parse_makefile_for_scripts(clar_test_SUITES "CLAR_TEST_SUITES" "")
 list(TRANSFORM clar_test_SUITES PREPEND "${CMAKE_SOURCE_DIR}/t/unit-tests/")
 list(TRANSFORM clar_test_SUITES APPEND ".c")
 add_custom_command(OUTPUT "${CMAKE_BINARY_DIR}/t/unit-tests/clar-decls.h"
-	COMMAND ${CMAKE_SOURCE_DIR}/t/unit-tests/generate-clar-decls.sh "${CMAKE_BINARY_DIR}/t/unit-tests/clar-decls.h" ${clar_test_SUITES}
-	DEPENDS ${CMAKE_SOURCE_DIR}/t/unit-tests/generate-clar-decls.sh ${clar_test_SUITES})
+	COMMAND ${SH_EXE} ${CMAKE_SOURCE_DIR}/t/unit-tests/generate-clar-decls.sh
+		"${CMAKE_BINARY_DIR}/t/unit-tests/clar-decls.h"
+		${clar_test_SUITES}
+	DEPENDS ${CMAKE_SOURCE_DIR}/t/unit-tests/generate-clar-decls.sh
+		${clar_test_SUITES}
+	VERBATIM)
 add_custom_command(OUTPUT "${CMAKE_BINARY_DIR}/t/unit-tests/clar.suite"
-	COMMAND awk -f "${CMAKE_SOURCE_DIR}/t/unit-tests/clar-generate.awk" "${CMAKE_BINARY_DIR}/t/unit-tests/clar-decls.h" > "${CMAKE_BINARY_DIR}/t/unit-tests/clar.suite"
-	DEPENDS "${CMAKE_SOURCE_DIR}/t/unit-tests/clar-generate.awk" "${CMAKE_BINARY_DIR}/t/unit-tests/clar-decls.h")
+	COMMAND ${SH_EXE} "${CMAKE_SOURCE_DIR}/t/unit-tests/generate-clar-suites.sh"
+		"${CMAKE_BINARY_DIR}/t/unit-tests/clar-decls.h"
+		"${CMAKE_BINARY_DIR}/t/unit-tests/clar.suite"
+	DEPENDS "${CMAKE_SOURCE_DIR}/t/unit-tests/generate-clar-suites.sh"
+		"${CMAKE_BINARY_DIR}/t/unit-tests/clar-decls.h"
+	VERBATIM)
 
 add_library(unit-tests-lib ${clar_test_SUITES}
 	"${CMAKE_SOURCE_DIR}/t/unit-tests/clar/clar.c"
diff --git a/t/unit-tests/clar-generate.awk b/t/unit-tests/clar-generate.awk
deleted file mode 100644
index ab71ce6c9f..0000000000
--- a/t/unit-tests/clar-generate.awk
+++ /dev/null
@@ -1,50 +0,0 @@
-function add_suite(suite, initialize, cleanup, count) {
-       if (!suite) return
-       suite_count++
-       callback_count += count
-       suites = suites "    {\n"
-       suites = suites "        \"" suite "\",\n"
-       suites = suites "        " initialize ",\n"
-       suites = suites "        " cleanup ",\n"
-       suites = suites "        _clar_cb_" suite ", " count ", 1\n"
-       suites = suites "    },\n"
-}
-
-BEGIN {
-       suites = "static struct clar_suite _clar_suites[] = {\n"
-}
-
-{
-       print
-       name = $3; sub(/\(.*$/, "", name)
-       suite = name; sub(/^test_/, "", suite); sub(/__.*$/, "", suite)
-       short_name = name; sub(/^.*__/, "", short_name)
-       cb = "{ \"" short_name "\", &" name " }"
-       if (suite != prev_suite) {
-               add_suite(prev_suite, initialize, cleanup, count)
-               if (callbacks) callbacks = callbacks "};\n"
-               callbacks = callbacks "static const struct clar_func _clar_cb_" suite "[] = {\n"
-               initialize = "{ NULL, NULL }"
-               cleanup = "{ NULL, NULL }"
-               count = 0
-               prev_suite = suite
-       }
-       if (short_name == "initialize") {
-               initialize = cb
-       } else if (short_name == "cleanup") {
-               cleanup = cb
-       } else {
-               callbacks = callbacks "    " cb ",\n"
-               count++
-       }
-}
-
-END {
-       add_suite(suite, initialize, cleanup, count)
-       suites = suites "};"
-       if (callbacks) callbacks = callbacks "};"
-       print callbacks
-       print suites
-       print "static const size_t _clar_suite_count = " suite_count ";"
-       print "static const size_t _clar_callback_count = " callback_count ";"
-}
diff --git a/t/unit-tests/generate-clar-suites.sh b/t/unit-tests/generate-clar-suites.sh
new file mode 100755
index 0000000000..d5c712221e
--- /dev/null
+++ b/t/unit-tests/generate-clar-suites.sh
@@ -0,0 +1,63 @@
+#!/bin/sh
+
+if test $# -lt 2
+then
+	echo "USAGE: $0 <CLAR_DECLS_H> <OUTPUT>" 2>&1
+	exit 1
+fi
+
+CLAR_DECLS_H="$1"
+OUTPUT="$2"
+
+awk '
+	function add_suite(suite, initialize, cleanup, count) {
+		if (!suite) return
+		suite_count++
+		callback_count += count
+		suites = suites "    {\n"
+		suites = suites "        \"" suite "\",\n"
+		suites = suites "        " initialize ",\n"
+		suites = suites "        " cleanup ",\n"
+		suites = suites "        _clar_cb_" suite ", " count ", 1\n"
+		suites = suites "    },\n"
+	}
+
+	BEGIN {
+		suites = "static struct clar_suite _clar_suites[] = {\n"
+	}
+
+	{
+		print
+		name = $3; sub(/\(.*$/, "", name)
+		suite = name; sub(/^test_/, "", suite); sub(/__.*$/, "", suite)
+		short_name = name; sub(/^.*__/, "", short_name)
+		cb = "{ \"" short_name "\", &" name " }"
+		if (suite != prev_suite) {
+			add_suite(prev_suite, initialize, cleanup, count)
+			if (callbacks) callbacks = callbacks "};\n"
+			callbacks = callbacks "static const struct clar_func _clar_cb_" suite "[] = {\n"
+			initialize = "{ NULL, NULL }"
+			cleanup = "{ NULL, NULL }"
+			count = 0
+			prev_suite = suite
+		}
+		if (short_name == "initialize") {
+			initialize = cb
+		} else if (short_name == "cleanup") {
+			cleanup = cb
+		} else {
+			callbacks = callbacks "    " cb ",\n"
+			count++
+		}
+	}
+
+	END {
+		add_suite(suite, initialize, cleanup, count)
+		suites = suites "};"
+		if (callbacks) callbacks = callbacks "};"
+		print callbacks
+		print suites
+		print "static const size_t _clar_suite_count = " suite_count ";"
+		print "static const size_t _clar_callback_count = " callback_count ";"
+	}
+' "$CLAR_DECLS_H" >"$OUTPUT"