ccnl: don't include c files
ccnl: don't include c files

this fixes a build problem on
debian and ubuntu based systems

luciotorre/RIOT,sgso/RIOT,Lotterleben/RIOT,RIOT-OS/RIOT,rfswarm2/RIOT,mfrey/RIOT,adjih/RIOT,dhruvvyas90/RIOT,latsku/RIOT,latsku/RIOT,rajma996/RIOT,tfar/RIOT,x3ro/RIOT,brettswann/RIOT,toonst/RIOT,OlegHahm/RIOT,RBartz/RIOT,rousselk/RIOT,herrfz/RIOT-old,thiagohd/RIOT,dailab/RIOT,rfswarm/RIOT,msolters/RIOT,chris-wood/RIOT,sgso/RIOT,gautric/RIOT,MarkXYang/RIOT,wentaoshang/RIOT,avmelnikoff/RIOT,altairpearl/RIOT,kYc0o/RIOT,A-Paul/RIOT,haoyangyu/RIOT,binarylemon/RIOT,josephnoir/RIOT,koenning/RIOT,PSHIVANI/Riot-Code,asanka-code/RIOT,Lexandro92/RIOT-CoAP,abkam07/RIOT,roberthartung/RIOT,changbiao/RIOT,patkan/RIOT,cladmi/RIOT,RBartz/RIOT,ThanhVic/RIOT,BytesGalore/PetersRIOT,jremmert-phytec-iot/RIOT,Lotterleben/RIOT,nsol-nmsu/RIOT,arvindpdmn/RIOT,FrancescoErmini/RIOT,BytesGalore/RIOT,adjih/RIOT,neumodisch/RIOT,Hyungsin/RIOT-OS,kaspar030/RIOT,zhuoshuguo/RIOT,Yonezawa-T2/RIOT,adrianghc/RIOT,RubikonAlpha/RIOT,wentaoshang/RIOT,jhollister/RIOT,emmanuelsearch/RIOT,dailab/RIOT,rakendrathapa/RIOT,LudwigOrtmann/RIOT,automote/RIOT,Yonezawa-T2/RIOT,l3nko/RIOT,tfar/RIOT,MarkXYang/RIOT,LudwigKnuepfer/RIOT,adrianghc/RIOT,nsol-nmsu/RIOT,d00616/RIOT,malosek/RIOT,BytesGalore/RIOT,biboc/RIOT,gbarnett/RIOT,adrianghc/RIOT,binarylemon/RIOT,changbiao/RIOT,ThanhVic/RIOT,herrfz/RIOT,rajma996/RIOT,daniel-k/RIOT,ntrtrung/RIOT,jbeyerstedt/RIOT-OTA-update,stevenj/RIOT,toonst/RIOT,authmillenon/RIOT,bartfaizoltan/RIOT,luciotorre/RIOT,FrancescoErmini/RIOT,Lotterleben/RIOT,locicontrols/RIOT,patkan/RIOT,gebart/RIOT,BytesGalore/RIOT,Darredevil/RIOT,lazytech-org/RIOT,ntrtrung/RIOT,rfuentess/RIOT,d00616/RIOT,bartfaizoltan/RIOT,haoyangyu/RIOT,Hyungsin/RIOT-OS,lazytech-org/RIOT,lebrush/RIOT,x3ro/RIOT,syin2/RIOT,dhruvvyas90/RIOT,1blankz7/RIOT,robixnai/RIOT,rajma996/RIOT,mtausig/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,rakendrathapa/RIOT,malosek/RIOT,rfswarm/RIOT,neiljay/RIOT,herrfz/RIOT,Ell-i/RIOT,BytesGalore/PetersRIOT,kaleb-himes/RIOT,smlng/RIOT,robixnai/RIOT,l3nko/RIOT,mziegert/RIOT,kYc0o/RIOT,plushvoxel/RIOT,thiagohd/RIOT,dailab/RIOT,changbiao/RIOT,bartfaizoltan/RIOT,watr-li/RIOT,daniel-k/RIOT,lebrush/RIOT,ks156/RIOT,haoyangyu/RIOT,malosek/RIOT,backenklee/RIOT,neiljay/RIOT,thiagohd/RIOT,EmuxEvans/RIOT,locicontrols/RIOT,tdautc19841202/RIOT,gbarnett/RIOT,MonsterCode8000/RIOT,LudwigKnuepfer/RIOT,LudwigOrtmann/RIOT,ant9000/RIOT,automote/RIOT,backenklee/RIOT,phiros/RIOT,bartfaizoltan/RIOT,JensErdmann/RIOT,alex1818/RIOT,centurysys/RIOT,Hyungsin/RIOT-OS,malosek/RIOT,ThanhVic/RIOT,mtausig/RIOT,jasonatran/RIOT,1blankz7/RIOT,sumanpanchal/RIOT,ros2/ros2_embedded_riot,miri64/RIOT,kbumsik/RIOT,benoit-canet/RIOT,rfswarm2/RIOT,fnack/RIOT,abp719/RIOT,MarkXYang/RIOT,haoyangyu/RIOT,daniel-k/RIOT,phiros/RIOT,kaspar030/RIOT,jhollister/RIOT,robixnai/RIOT,arvindpdmn/RIOT,kaspar030/RIOT,miri64/RIOT,fnack/RIOT,mziegert/RIOT,haoyangyu/RIOT,kerneltask/RIOT,cladmi/RIOT,rousselk/RIOT,Hyungsin/RIOT-OS,AnonMall/RIOT,biboc/RIOT,locicontrols/RIOT,cladmi/RIOT,hamilton-mote/RIOT-OS,dailab/RIOT,BytesGalore/PetersRIOT,ros2/ros2_embedded_riot,koenning/RIOT,basilfx/RIOT,neiljay/RIOT,asanka-code/RIOT,immesys/RiSyn,jfischer-phytec-iot/RIOT,spium/IoT-RIOT,RBartz/RIOT,latsku/RIOT,stevenj/RIOT,watr-li/RIOT,Osblouf/RIOT,plushvoxel/RIOT,kushalsingh007/RIOT,herrfz/RIOT-old,jasonatran/RIOT,rakendrathapa/RIOT,RIOT-OS/RIOT,sumanpanchal/RIOT,DipSwitch/RIOT,katezilla/RIOT,herrfz/RIOT-old,JensErdmann/RIOT,toonst/RIOT,neumodisch/RIOT,jferreir/RIOT,jbeyerstedt/RIOT-OTA-update,smlng/RIOT,nsol-nmsu/RIOT,beurdouche/RIOT,kbumsik/RIOT,emmanuelsearch/RIOT,jferreir/RIOT,Lexandro92/RIOT-CoAP,khhhh/RIOT,jferreir/RIOT,beurdouche/RIOT,RBartz/RIOT,EmuxEvans/RIOT,toonst/RIOT,jbeyerstedt/RIOT-OTA-update,wentaoshang/RIOT,kushalsingh007/RIOT,adrianghc/RIOT,Darredevil/RIOT,gautric/RIOT,chris-wood/RIOT,ximus/RIOT,immesys/RiSyn,chris-wood/RIOT,alex1818/RIOT,yogo1212/RIOT,gautric/RIOT,authmillenon/RIOT,msolters/RIOT,jasonatran/RIOT,immesys/RiSyn,A-Paul/RIOT,binarylemon/RIOT,attdona/RIOT,khhhh/RIOT,stevenj/RIOT,MonsterCode8000/RIOT,khhhh/RIOT,ros2/ros2_embedded_riot,changbiao/RIOT,RubikonAlpha/RIOT,sgso/RIOT,l3nko/RIOT,automote/RIOT,emmanuelsearch/RIOT,wentaoshang/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,jfischer-phytec-iot/RIOT,locicontrols/RIOT,jferreir/RIOT,AnonMall/RIOT,brettswann/RIOT,rousselk/RIOT,thomaseichinger/RIOT,altairpearl/RIOT,Yonezawa-T2/RIOT,jferreir/RIOT,abp719/RIOT,centurysys/RIOT,emmanuelsearch/RIOT,LudwigKnuepfer/RIOT,PSHIVANI/Riot-Code,sumanpanchal/RIOT,ThanhVic/RIOT,kushalsingh007/RIOT,patkan/RIOT,TobiasFredersdorf/RIOT,chris-wood/RIOT,kbumsik/RIOT,centurysys/RIOT,yogo1212/RIOT,jhollister/RIOT,RIOT-OS/RIOT,watr-li/RIOT,ant9000/RIOT,spium/IoT-RIOT,sgso/RIOT,rfswarm2/RIOT,OTAkeys/RIOT,immesys/RiSyn,jasonatran/RIOT,JensErdmann/RIOT,dkm/RIOT,miri64/RIOT,PSHIVANI/Riot-Code,stevenj/RIOT,adjih/RIOT,mfrey/RIOT,openkosmosorg/RIOT,dkm/RIOT,roberthartung/RIOT,Ell-i/RIOT,daniel-k/RIOT,robixnai/RIOT,kYc0o/RIOT,alex1818/RIOT,MarkXYang/RIOT,RBartz/RIOT,mziegert/RIOT,alignan/RIOT,ThanhVic/RIOT,marcosalm/RIOT,A-Paul/RIOT,EmuxEvans/RIOT,adjih/RIOT,kbumsik/RIOT,x3ro/RIOT,dailab/RIOT,OTAkeys/RIOT,ks156/RIOT,herrfz/RIOT,watr-li/RIOT,abkam07/RIOT,hamilton-mote/RIOT-OS,mziegert/RIOT,phiros/RIOT,hamilton-mote/RIOT-OS,Osblouf/RIOT,kaleb-himes/RIOT,wentaoshang/RIOT,rfuentess/RIOT,miri64/RIOT,rfswarm2/RIOT,ximus/RIOT,lazytech-org/RIOT,brettswann/RIOT,OTAkeys/RIOT,tdautc19841202/RIOT,abkam07/RIOT,PSHIVANI/Riot-Code,plushvoxel/RIOT,attdona/RIOT,backenklee/RIOT,jremmert-phytec-iot/RIOT,MohmadAyman/RIOT,AnonMall/RIOT,JensErdmann/RIOT,gebart/RIOT,jremmert-phytec-iot/RIOT,khhhh/RIOT,wentaoshang/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,avmelnikoff/RIOT,dhruvvyas90/RIOT,Osblouf/RIOT,lebrush/RIOT,Darredevil/RIOT,locicontrols/RIOT,fnack/RIOT,altairpearl/RIOT,sgso/RIOT,abkam07/RIOT,alex1818/RIOT,patkan/RIOT,1blankz7/RIOT,authmillenon/RIOT,mfrey/RIOT,kYc0o/RIOT,Josar/RIOT,MohmadAyman/RIOT,Lexandro92/RIOT-CoAP,OlegHahm/RIOT,ks156/RIOT,neiljay/RIOT,sumanpanchal/RIOT,beurdouche/RIOT,BytesGalore/RIOT,gebart/RIOT,koenning/RIOT,MonsterCode8000/RIOT,tdautc19841202/RIOT,JensErdmann/RIOT,mziegert/RIOT,josephnoir/RIOT,katezilla/RIOT,smlng/RIOT,sgso/RIOT,ntrtrung/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,aeneby/RIOT,d00616/RIOT,kushalsingh007/RIOT,RIOT-OS/RIOT,patkan/RIOT,abkam07/RIOT,nsol-nmsu/RIOT,syin2/RIOT,BytesGalore/RIOT,watr-li/RIOT,MarkXYang/RIOT,koenning/RIOT,altairpearl/RIOT,kushalsingh007/RIOT,Darredevil/RIOT,arvindpdmn/RIOT,TobiasFredersdorf/RIOT,tdautc19841202/RIOT,chris-wood/RIOT,cladmi/RIOT,openkosmosorg/RIOT,d00616/RIOT,kaleb-himes/RIOT,DipSwitch/RIOT,asanka-code/RIOT,aeneby/RIOT,kerneltask/RIOT,dhruvvyas90/RIOT,gbarnett/RIOT,lazytech-org/RIOT,luciotorre/RIOT,neumodisch/RIOT,mtausig/RIOT,Osblouf/RIOT,biboc/RIOT,ximus/RIOT,marcosalm/RIOT,josephnoir/RIOT,shady33/RIOT,fnack/RIOT,nsol-nmsu/RIOT,Josar/RIOT,dkm/RIOT,attdona/RIOT,latsku/RIOT,TobiasFredersdorf/RIOT,mfrey/RIOT,BytesGalore/PetersRIOT,FrancescoErmini/RIOT,Lexandro92/RIOT-CoAP,lebrush/RIOT,thomaseichinger/RIOT,biboc/RIOT,yogo1212/RIOT,abp719/RIOT,OlegHahm/RIOT,automote/RIOT,malosek/RIOT,herrfz/RIOT-old,centurysys/RIOT,brettswann/RIOT,herrfz/RIOT-old,gautric/RIOT,Yonezawa-T2/RIOT,koenning/RIOT,msolters/RIOT,ros2/ros2_embedded_riot,stevenj/RIOT,mfrey/RIOT,spium/IoT-RIOT,zhuoshuguo/RIOT,jremmert-phytec-iot/RIOT,RubikonAlpha/RIOT,ximus/RIOT,josephnoir/RIOT,msolters/RIOT,jasonatran/RIOT,cladmi/RIOT,hamilton-mote/RIOT-OS,rfuentess/RIOT,MonsterCode8000/RIOT,DipSwitch/RIOT,RIOT-OS/RIOT,arvindpdmn/RIOT,marcosalm/RIOT,x3ro/RIOT,jbeyerstedt/RIOT-OTA-update,Lotterleben/RIOT,avmelnikoff/RIOT,JensErdmann/RIOT,khhhh/RIOT,EmuxEvans/RIOT,jbeyerstedt/RIOT-OTA-update,OTAkeys/RIOT,BytesGalore/PetersRIOT,yogo1212/RIOT,latsku/RIOT,hamilton-mote/RIOT-OS,rousselk/RIOT,EmuxEvans/RIOT,Osblouf/RIOT,Lotterleben/RIOT,AnonMall/RIOT,kaspar030/RIOT,thiagohd/RIOT,FrancescoErmini/RIOT,tfar/RIOT,alignan/RIOT,thiagohd/RIOT,ros2/ros2_embedded_riot,msolters/RIOT,aeneby/RIOT,rfuentess/RIOT,openkosmosorg/RIOT,basilfx/RIOT,ros2/ros2_embedded_riot,toonst/RIOT,katezilla/RIOT,phiros/RIOT,thomaseichinger/RIOT,josephnoir/RIOT,lebrush/RIOT,adjih/RIOT,asanka-code/RIOT,MohmadAyman/RIOT,LudwigKnuepfer/RIOT,robixnai/RIOT,emmanuelsearch/RIOT,tdautc19841202/RIOT,abp719/RIOT,attdona/RIOT,alex1818/RIOT,msolters/RIOT,basilfx/RIOT,shady33/RIOT,jferreir/RIOT,marcosalm/RIOT,Hyungsin/RIOT-OS,d00616/RIOT,khhhh/RIOT,syin2/RIOT,Osblouf/RIOT,ntrtrung/RIOT,kaspar030/RIOT,gautric/RIOT,fnack/RIOT,authmillenon/RIOT,rousselk/RIOT,neiljay/RIOT,patkan/RIOT,jfischer-phytec-iot/RIOT,roberthartung/RIOT,brettswann/RIOT,lazytech-org/RIOT,Yonezawa-T2/RIOT,centurysys/RIOT,neumodisch/RIOT,spium/IoT-RIOT,Josar/RIOT,DipSwitch/RIOT,kb2ma/RIOT,benoit-canet/RIOT,gebart/RIOT,fnack/RIOT,dkm/RIOT,A-Paul/RIOT,gbarnett/RIOT,AnonMall/RIOT,benoit-canet/RIOT,FrancescoErmini/RIOT,ntrtrung/RIOT,Darredevil/RIOT,Lotterleben/RIOT,kb2ma/RIOT,kYc0o/RIOT,authmillenon/RIOT,abkam07/RIOT,EmuxEvans/RIOT,shady33/RIOT,daniel-k/RIOT,marcosalm/RIOT,spium/IoT-RIOT,spium/IoT-RIOT,alignan/RIOT,AnonMall/RIOT,kaleb-himes/RIOT,benoit-canet/RIOT,tfar/RIOT,plushvoxel/RIOT,herrfz/RIOT,MohmadAyman/RIOT,emmanuelsearch/RIOT,basilfx/RIOT,beurdouche/RIOT,kb2ma/RIOT,backenklee/RIOT,ntrtrung/RIOT,1blankz7/RIOT,biboc/RIOT,rakendrathapa/RIOT,dhruvvyas90/RIOT,aeneby/RIOT,RBartz/RIOT,kb2ma/RIOT,automote/RIOT,roberthartung/RIOT,zhuoshuguo/RIOT,thiagohd/RIOT,OTAkeys/RIOT,Josar/RIOT,ximus/RIOT,attdona/RIOT,kaleb-himes/RIOT,openkosmosorg/RIOT,rfswarm2/RIOT,aeneby/RIOT,luciotorre/RIOT,kb2ma/RIOT,luciotorre/RIOT,altairpearl/RIOT,Yonezawa-T2/RIOT,locicontrols/RIOT,rfswarm/RIOT,roberthartung/RIOT,Ell-i/RIOT,ant9000/RIOT,haoyangyu/RIOT,LudwigOrtmann/RIOT,mtausig/RIOT,katezilla/RIOT,kerneltask/RIOT,MohmadAyman/RIOT,benoit-canet/RIOT,Ell-i/RIOT,sumanpanchal/RIOT,backenklee/RIOT,kerneltask/RIOT,herrfz/RIOT,katezilla/RIOT,binarylemon/RIOT,jhollister/RIOT,arvindpdmn/RIOT,MohmadAyman/RIOT,jremmert-phytec-iot/RIOT,MonsterCode8000/RIOT,alignan/RIOT,shady33/RIOT,malosek/RIOT,marcosalm/RIOT,OlegHahm/RIOT,ks156/RIOT,adrianghc/RIOT,rajma996/RIOT,rfuentess/RIOT,altairpearl/RIOT,miri64/RIOT,abp719/RIOT,phiros/RIOT,TobiasFredersdorf/RIOT,immesys/RiSyn,gbarnett/RIOT,syin2/RIOT,yogo1212/RIOT,dkm/RIOT,locicontrols/RIOT,rakendrathapa/RIOT,ant9000/RIOT,changbiao/RIOT,jhollister/RIOT,alex1818/RIOT,A-Paul/RIOT,authmillenon/RIOT,latsku/RIOT,centurysys/RIOT,openkosmosorg/RIOT,asanka-code/RIOT,daniel-k/RIOT,kbumsik/RIOT,smlng/RIOT,zhuoshuguo/RIOT,PSHIVANI/Riot-Code,gebart/RIOT,avmelnikoff/RIOT,Lotterleben/RIOT,1blankz7/RIOT,Darredevil/RIOT,DipSwitch/RIOT,LudwigOrtmann/RIOT,shady33/RIOT,1blankz7/RIOT,bartfaizoltan/RIOT,rfswarm2/RIOT,stevenj/RIOT,rfswarm/RIOT,tfar/RIOT,syin2/RIOT,rfswarm/RIOT,ros2/ros2_embedded_riot,attdona/RIOT,LudwigKnuepfer/RIOT,openkosmosorg/RIOT,Ell-i/RIOT,immesys/RiSyn,benoit-canet/RIOT,avmelnikoff/RIOT,RubikonAlpha/RIOT,rajma996/RIOT,mziegert/RIOT,brettswann/RIOT,PSHIVANI/Riot-Code,d00616/RIOT,RubikonAlpha/RIOT,neumodisch/RIOT,BytesGalore/PetersRIOT,zhuoshuguo/RIOT,neumodisch/RIOT,arvindpdmn/RIOT,herrfz/RIOT,tdautc19841202/RIOT,TobiasFredersdorf/RIOT,sumanpanchal/RIOT,l3nko/RIOT,koenning/RIOT,zhuoshuguo/RIOT,x3ro/RIOT,LudwigOrtmann/RIOT,ximus/RIOT,ks156/RIOT,binarylemon/RIOT,l3nko/RIOT,robixnai/RIOT,DipSwitch/RIOT,ant9000/RIOT,kushalsingh007/RIOT,LudwigOrtmann/RIOT,phiros/RIOT,shady33/RIOT,watr-li/RIOT,gbarnett/RIOT,foss-for-synopsys-dwc-arc-processors/RIOT,kerneltask/RIOT,automote/RIOT,MonsterCode8000/RIOT,rakendrathapa/RIOT,Josar/RIOT,jremmert-phytec-iot/RIOT,chris-wood/RIOT,jhollister/RIOT,rfswarm/RIOT,beurdouche/RIOT,asanka-code/RIOT,dhruvvyas90/RIOT,FrancescoErmini/RIOT,Lexandro92/RIOT-CoAP,BytesGalore/PetersRIOT,OlegHahm/RIOT,l3nko/RIOT,thomaseichinger/RIOT,luciotorre/RIOT,jfischer-phytec-iot/RIOT,rousselk/RIOT,lebrush/RIOT,rajma996/RIOT,yogo1212/RIOT,ThanhVic/RIOT,smlng/RIOT,plushvoxel/RIOT,basilfx/RIOT,RubikonAlpha/RIOT,abp719/RIOT,changbiao/RIOT,bartfaizoltan/RIOT,mtausig/RIOT,Lexandro92/RIOT-CoAP,jfischer-phytec-iot/RIOT,alignan/RIOT,thomaseichinger/RIOT,MarkXYang/RIOT,binarylemon/RIOT