Build fails with syntax error
Building rocs 20.12.0 and 20.12.1 fails with this error (the command line is so long since this is build under GNU guix which uses a separate prefix for each package):
[ 14%] Building CXX object libgraphtheory/CMakeFiles/rocsgraphtheory.dir/view.cpp.o
cd /tmp/guix-build-rocs-20.12.1.drv-0/build/libgraphtheory && /gnu/store/6wn346cbw1mh6264v426pwj2klgvxr0z-gcc-5.5.0/bin/c++ -DKCOREADDONS_LIB -DQT_CORE_LIB -DQT_DBUS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_NO_CAST_TO_ASCII -DQT_NO_DEBUG -DQT_NO_URL_CAST_FROM_STRING -DQT_QMLMODELS_LIB -DQT_QML_LIB -DQT_QUICKWIDGETS_LIB -DQT_QUICK_LIB -DQT_SCRIPTTOOLS_LIB -DQT_SCRIPT_LIB -DQT_WIDGETS_LIB -DQT_XML_LIB -DTRANSLATION_DOMAIN=\"libgraphtheory\" -D_GNU_SOURCE -D_LARGEFILE64_SOURCE -Drocsgraphtheory_EXPORTS -I/tmp/guix-build-rocs-20.12.1.drv-0/build/libgraphtheory -I/tmp/guix-build-rocs-20.12.1.drv-0/rocs-20.12.1/libgraphtheory -I/tmp/guix-build-rocs-20.12.1.drv-0/build/libgraphtheory/rocsgraphtheory_autogen/include -I/tmp/guix-build-rocs-20.12.1.drv-0/rocs-20.12.1 -I/tmp/guix-build-rocs-20.12.1.drv-0/build -I/tmp/guix-build-rocs-20.12.1.drv-0/rocs-20.12.1/libgraphtheory/. -isystem /gnu/store/vpvnd6593mjncvyir2rbgp3k83cr7w0a-qtbase-5.15.2/include/qt5 -isystem /gnu/store/vpvnd6593mjncvyir2rbgp3k83cr7w0a-qtbase-5.15.2/include/qt5/QtCore -isystem /gnu/store/vpvnd6593mjncvyir2rbgp3k83cr7w0a-qtbase-5.15.2/lib/qt5/mkspecs/linux-g++ -isystem /gnu/store/93gl0i94cl488zamwg4an2fa8yhrmkpn-qtdeclarative-5.15.2/include/qt5 -isystem /gnu/store/93gl0i94cl488zamwg4an2fa8yhrmkpn-qtdeclarative-5.15.2/include/qt5/QtQuick -isystem /gnu/store/93gl0i94cl488zamwg4an2fa8yhrmkpn-qtdeclarative-5.15.2/include/qt5/QtQmlModels -isystem /gnu/store/93gl0i94cl488zamwg4an2fa8yhrmkpn-qtdeclarative-5.15.2/include/qt5/QtQml -isystem /gnu/store/vpvnd6593mjncvyir2rbgp3k83cr7w0a-qtbase-5.15.2/include/qt5/QtNetwork -isystem /gnu/store/vpvnd6593mjncvyir2rbgp3k83cr7w0a-qtbase-5.15.2/include/qt5/QtGui -isystem /gnu/store/93gl0i94cl488zamwg4an2fa8yhrmkpn-qtdeclarative-5.15.2/include/qt5/QtQuickWidgets -isystem /gnu/store/vpvnd6593mjncvyir2rbgp3k83cr7w0a-qtbase-5.15.2/include/qt5/QtWidgets -isystem /gnu/store/8h0rm7jq0dcqhi504z8gkipf3i5dnvwr-qtscript-5.15.2/include/qt5 -isystem /gnu/store/8h0rm7jq0dcqhi504z8gkipf3i5dnvwr-qtscript-5.15.2/include/qt5/QtScript -isystem /gnu/store/8h0rm7jq0dcqhi504z8gkipf3i5dnvwr-qtscript-5.15.2/include/qt5/QtScriptTools -isystem /gnu/store/3xmsw3vi5ccmfmydg3lz7ry24drdb5vb-ki18n-5.70.0/include/KF5/KI18n -isystem /gnu/store/3xmsw3vi5ccmfmydg3lz7ry24drdb5vb-ki18n-5.70.0/include/KF5 -isystem /gnu/store/nr82sv50gwrfx25h2askrr2rz4vbg4rp-kitemviews-5.70.0/include/KF5/KItemViews -isystem /gnu/store/nr82sv50gwrfx25h2askrr2rz4vbg4rp-kitemviews-5.70.0/include/KF5 -isystem /gnu/store/a8smg254j5sy8virddz3kgr0xd9hzwda-kxmlgui-5.70.0/include/KF5/KXmlGui -isystem /gnu/store/a8smg254j5sy8virddz3kgr0xd9hzwda-kxmlgui-5.70.0/include/KF5 -isystem /gnu/store/vpvnd6593mjncvyir2rbgp3k83cr7w0a-qtbase-5.15.2/include/qt5/QtXml -isystem /gnu/store/5nsnhc5by4n4wrc3j88ch541ijfaw9bp-kconfig-5.70.0/include/KF5/KConfigCore -isystem /gnu/store/5nsnhc5by4n4wrc3j88ch541ijfaw9bp-kconfig-5.70.0/include/KF5 -isystem /gnu/store/w4hlx1ln35xcb74qgn3q99ijcdxblzvs-kconfigwidgets-5.70.0/include/KF5/KConfigWidgets -isystem /gnu/store/w4hlx1ln35xcb74qgn3q99ijcdxblzvs-kconfigwidgets-5.70.0/include/KF5 -isystem /gnu/store/ayzhljvp429wc0zd4j1xaz2nn2ggwldf-kcodecs-5.70.0/include/KF5/KCodecs -isystem /gnu/store/ayzhljvp429wc0zd4j1xaz2nn2ggwldf-kcodecs-5.70.0/include/KF5 -isystem /gnu/store/31l2p576n2wzz80y4d2wrzi4sf7ivkfy-kwidgetsaddons-5.70.0/include/KF5/KWidgetsAddons -isystem /gnu/store/31l2p576n2wzz80y4d2wrzi4sf7ivkfy-kwidgetsaddons-5.70.0/include/KF5 -isystem /gnu/store/5nsnhc5by4n4wrc3j88ch541ijfaw9bp-kconfig-5.70.0/include/KF5/KConfigGui -isystem /gnu/store/xq9p3kn08ynm738gsmzfcyzrh6p2a4bd-kauth-5.70.0/include/KF5/KAuth -isystem /gnu/store/xq9p3kn08ynm738gsmzfcyzrh6p2a4bd-kauth-5.70.0/include/KF5 -isystem /gnu/store/97hlqiw4nl9r3ilxgqh94ij7nfnrqcm9-kcoreaddons-5.70.0/include/KF5/KCoreAddons -isystem /gnu/store/97hlqiw4nl9r3ilxgqh94ij7nfnrqcm9-kcoreaddons-5.70.0/include/KF5 -isystem /gnu/store/vpvnd6593mjncvyir2rbgp3k83cr7w0a-qtbase-5.15.2/include/qt5/QtDBus -fno-exceptions -Wall -Wextra -Wcast-align -Wchar-subscripts -Wformat-security -Wno-long-long -Wpointer-arith -Wundef -Wnon-virtual-dtor -Woverloaded-virtual -Werror=return-type -Wvla -Wdate-time -Wsuggest-override -Wlogical-op -O2 -g -DNDEBUG -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -fPIC -std=gnu++11 -o CMakeFiles/rocsgraphtheory.dir/view.cpp.o -c /tmp/guix-build-rocs-20.12.1.drv-0/rocs-20.12.1/libgraphtheory/view.cpp
<command-line>:0:20: error: expected identifier before string constant
<command-line>:0:20: error: expected ‘,’ or ‘...’ before string constant
<command-line>:0:20: error: expected identifier before string constant
<command-line>:0:20: error: expected ‘,’ or ‘...’ before string constant
<command-line>:0:20: error: expected identifier before string constant
<command-line>:0:20: error: expected ‘,’ or ‘...’ before string constant
<command-line>:0:20: error: expected identifier before string constant
<command-line>:0:20: error: expected ‘,’ or ‘...’ before string constant
<command-line>:0:20: error: expected identifier before string constant
<command-line>:0:20: error: expected ‘,’ or ‘...’ before string constant
<command-line>:0:20: error: expected identifier before string constant
<command-line>:0:20: error: expected ‘,’ or ‘...’ before string constant
<command-line>:0:20: error: expected identifier before string constant
<command-line>:0:20: error: expected ‘,’ or ‘...’ before string constant
<command-line>:0:20: error: expected identifier before string constant
<command-line>:0:20: error: expected ‘,’ or ‘...’ before string constant
make[2]: *** [libgraphtheory/CMakeFiles/rocsgraphtheory.dir/build.make:218: libgraphtheory/CMakeFiles/rocsgraphtheory.dir/view.cpp.o] Error 1
Building 20.08.3 does not show this error.