g++ -c -pipe -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong -fno-plt -D_FORTIFY_SOURCE=2 -I/usr/include -O2 -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong -fno-plt -std=gnu++11 -frtti -Wall -W -Wno-reorder -D_REENTRANT -fPIC -DVERSION=0.18.3.75 -DREVISION=0.18.3-75-g1b7fd60c-64bit -DPRODUCT=Merkaartor -D_TTY_POSIX_ -DUSE_GPS -DPLUGINS_DIR=/usr/lib/merkaartor/plugins -DSHARE_DIR=/usr/share/merkaartor -DTRANSDIR_MERKAARTOR=/usr/share/merkaartor/translations -DQT_NO_DEBUG -DQT_SVG_LIB -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_XML_LIB -DQT_CONCURRENT_LIB -DQT_CORE_LIB -I. -I../3rdparty/qtsingleapplication-2.6_1-opensource/src -I. -I../include -I../interfaces -Icommon -IBackend -IPaintStyle -IPaintStyle -IFeatures -ILayers -IPreferences -ISync -ICommands -IInteractions -IDocks -IQMapControl -IImportExport -IRender -Iqextserialport -IGPS -ITools -ITagTemplate -INameFinder -IUtils -IQToolBarDialog -isystem /usr/include/qt -isystem /usr/include/qt/QtSvg -isystem /usr/include/qt/QtPrintSupport -isystem /usr/include/qt/QtWidgets -isystem /usr/include/qt/QtGui -isystem /usr/include/qt/QtNetwork -isystem /usr/include/qt/QtXml -isystem /usr/include/qt/QtConcurrent -isystem /usr/include/qt/QtCore -Irelease -isystem /usr/include/libdrm -I. -I/usr/lib/qt/mkspecs/linux-g++ -o release/qtsingleapplication.o ../3rdparty/qtsingleapplication-2.6_1-opensource/src/qtsingleapplication.cpp
g++ -c -pipe -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong -fno-plt -D_FORTIFY_SOURCE=2 -I/usr/include -O2 -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong -fno-plt -std=gnu++11 -frtti -Wall -W -Wno-reorder -D_REENTRANT -fPIC -DVERSION=0.18.3.75 -DREVISION=0.18.3-75-g1b7fd60c-64bit -DPRODUCT=Merkaartor -D_TTY_POSIX_ -DUSE_GPS -DPLUGINS_DIR=/usr/lib/merkaartor/plugins -DSHARE_DIR=/usr/share/merkaartor -DTRANSDIR_MERKAARTOR=/usr/share/merkaartor/translations -DQT_NO_DEBUG -DQT_SVG_LIB -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_XML_LIB -DQT_CONCURRENT_LIB -DQT_CORE_LIB -I. -I../3rdparty/qtsingleapplication-2.6_1-opensource/src -I. -I../include -I../interfaces -Icommon -IBackend -IPaintStyle -IPaintStyle -IFeatures -ILayers -IPreferences -ISync -ICommands -IInteractions -IDocks -IQMapControl -IImportExport -IRender -Iqextserialport -IGPS -ITools -ITagTemplate -INameFinder -IUtils -IQToolBarDialog -isystem /usr/include/qt -isystem /usr/include/qt/QtSvg -isystem /usr/include/qt/QtPrintSupport -isystem /usr/include/qt/QtWidgets -isystem /usr/include/qt/QtGui -isystem /usr/include/qt/QtNetwork -isystem /usr/include/qt/QtXml -isystem /usr/include/qt/QtConcurrent -isystem /usr/include/qt/QtCore -Irelease -isystem /usr/include/libdrm -I. -I/usr/lib/qt/mkspecs/linux-g++ -o release/qtlocalpeer.o ../3rdparty/qtsingleapplication-2.6_1-opensource/src/qtlocalpeer.cpp
g++ -c -pipe -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong -fno-plt -D_FORTIFY_SOURCE=2 -I/usr/include -O2 -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong -fno-plt -std=gnu++11 -frtti -Wall -W -Wno-reorder -D_REENTRANT -fPIC -DVERSION=0.18.3.75 -DREVISION=0.18.3-75-g1b7fd60c-64bit -DPRODUCT=Merkaartor -D_TTY_POSIX_ -DUSE_GPS -DPLUGINS_DIR=/usr/lib/merkaartor/plugins -DSHARE_DIR=/usr/share/merkaartor -DTRANSDIR_MERKAARTOR=/usr/share/merkaartor/translations -DQT_NO_DEBUG -DQT_SVG_LIB -DQT_PRINTSUPPORT_LIB -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_XML_LIB -DQT_CONCURRENT_LIB -DQT_CORE_LIB -I. -I../3rdparty/qtsingleapplication-2.6_1-opensource/src -I. -I../include -I../interfaces -Icommon -IBackend -IPaintStyle -IPaintStyle -IFeatures -ILayers -IPreferences -ISync -ICommands -IInteractions -IDocks -IQMapControl -IImportExport -IRender -Iqextserialport -IGPS -ITools -ITagTemplate -INameFinder -IUtils -IQToolBarDialog -isystem /usr/include/qt -isystem /usr/include/qt/QtSvg -isystem /usr/include/qt/QtPrintSupport -isystem /usr/include/qt/QtWidgets -isystem /usr/include/qt/QtGui -isystem /usr/include/qt/QtNetwork -isystem /usr/include/qt/QtXml -isystem /usr/include/qt/QtConcurrent -isystem /usr/include/qt/QtCore -Irelease -isystem /usr/include/libdrm -I. -I/usr/lib/qt/mkspecs/linux-g++ -o release/Global.o common/Global.cpp
In file included from common/Projection.h:12,
                 from common/MapView.h:4,
                 from Features/Feature.h:8,
                 from Features/Features.h:2,
                 from Backend/MemoryBackend.h:4,
                 from common/Global.h:19,
                 from common/Global.cpp:13:
/usr/include/proj_api.h:37:2: error: #error 'To use the proj_api.h you must define the macro ACCEPT_USE_OF_DEPRECATED_PROJ_API_H'
   37 | #error 'To use the proj_api.h you must define the macro ACCEPT_USE_OF_DEPRECATED_PROJ_API_H'
      |  ^~~~~
make[2]: *** [Makefile.Release:2454: release/Global.o] Error 1
make[2]: Leaving directory '/home/yin/.cache/yay/merkaartor-git/src/merkaartor/src'
make[1]: *** [Makefile:42: release] Error 2
make[1]: Leaving directory '/home/yin/.cache/yay/merkaartor-git/src/merkaartor/src'
make: *** [Makefile:48: sub-src-make_first] Error 2
==> ERROR: A failure occurred in build().
    Aborting...
Error making: merkaartor-git