Index: lang/qt/tests/Makefile.in
--- lang/qt/tests/Makefile.in.orig
+++ lang/qt/tests/Makefile.in
@@ -790,11 +790,11 @@ moc_files = \
 AM_LDFLAGS = -no-install
 @WANT_QT5_TRUE@LDADD = ../../cpp/src/libgpgmepp.la ../src/libqgpgme.la \
 @WANT_QT5_TRUE@        ../../../src/libgpgme.la @GPGME_QT5_LIBS@ @GPG_ERROR_LIBS@ \
-@WANT_QT5_TRUE@        @GPGME_QT5TEST_LIBS@ @LDADD_FOR_TESTS_KLUDGE@ -lstdc++
+@WANT_QT5_TRUE@        @GPGME_QT5TEST_LIBS@ @LDADD_FOR_TESTS_KLUDGE@
 
 @WANT_QT6_TRUE@LDADD = ../../cpp/src/libgpgmepp.la ../src/libqgpgmeqt6.la \
 @WANT_QT6_TRUE@        ../../../src/libgpgme.la @GPGME_QT6_LIBS@ @GPG_ERROR_LIBS@ \
-@WANT_QT6_TRUE@        @GPGME_QT6TEST_LIBS@ @LDADD_FOR_TESTS_KLUDGE@ -lstdc++
+@WANT_QT6_TRUE@        @GPGME_QT6TEST_LIBS@ @LDADD_FOR_TESTS_KLUDGE@
 
 @WANT_QT5_TRUE@AM_CPPFLAGS = -I$(top_srcdir)/lang/cpp/src -I$(top_builddir)/src \
 @WANT_QT5_TRUE@              @GPG_ERROR_CFLAGS@ @GPGME_QT5_CFLAGS@ @GPG_ERROR_CFLAGS@ \