Fixed Ruby-less builds.

build.sh

@@ -615,7 +615,7 @@ qmake_options=(
 
 # This should speed up build time considerably
 # https://ortogonal.github.io/ccache-and-qmake-qtcreator/
-if [ $QMAKE_CCACHE = 1 ]; then
+if [ "$QMAKE_CCACHE" = 1 ]; then
   qmake_options+=(
     CONFIG+="ccache"
   )

src/buddies/unit_tests/unit_tests.pro

@@ -15,9 +15,16 @@ SOURCES = \
   bdStrmcmpTests.cc \
   bdStrmxorTests.cc \
   bdStrmrunTests.cc \
+
+equals(HAVE_RUBY, "1") {
+
+# the basic tests require Ruby as they use Ruby unittest
+SOURCES += \
   buddies_main.cc \
 
+}
+
 INCLUDEPATH += $$BD_INC $$DB_INC $$TL_INC $$GSI_INC $$RBA_INC
 DEPENDPATH += $$BD_INC $$DB_INC $$TL_INC $$GSI_INC $$RBA_INC
 
-LIBS += -L$$DESTDIR_UT -lklayout_bd -lklayout_db -lklayout_tl -lklayout_gsi -lklayout_rba
+LIBS += -L$$DESTDIR_UT -lklayout_bd -lklayout_db -lklayout_tl -lklayout_gsi -l$$RBA_LIB

src/klayout.pri

@@ -22,14 +22,18 @@ VERSION_INC = $$PWD/version
 
 equals(HAVE_RUBY, "1") {
   RBA_INC = $$PWD/rba/rba
+  RBA_LIB = klayout_rba
 } else {
   RBA_INC = $$PWD/rbastub
+  RBA_LIB = klayout_rbastub
 }
 
 equals(HAVE_PYTHON, "1") {
   PYA_INC = $$PWD/pya/pya
+  PYA_LIB = klayout_pya
 } else {
   PYA_INC = $$PWD/pyastub
+  PYA_LIB = klayout_pyastub
 }
 
 equals(HAVE_QTBINDINGS, "1") {