gcc: Do not search /usr/lib for libraries
gcc: Do not search /usr/lib for libraries

Add -nostdlib to the link_libgcc spec.

hyokosdeveloper/linuxbrew,reelsense/linuxbrew,adamliter/linuxbrew,SuperNEMO-DBD/cadfaelbrew,10sr/linuxbrew,Homebrew/linuxbrew,oneillkza/linuxbrew,danabrand/linuxbrew,bukzor/linuxbrew,SuperNEMO-DBD/cadfaelbrew,reelsense/linuxbrew,romejoe/linuxbrew,bukzor/linuxbrew,adamliter/linuxbrew,DoomHammer/linuxbrew,trskop/linuxbrew,gnubila-france/linuxbrew,brendanator/linuxbrew,saketkc/linuxbrew,davydden/linuxbrew,oneillkza/linuxbrew,Gui13/linuxbrew,afdnlw/linuxbrew,saketkc/linuxbrew,Gui13/linuxbrew,davydden/linuxbrew,IsmailM/linuxbrew,trskop/linuxbrew,saketkc/linuxbrew,tomas/linuxbrew,davydden/linuxbrew,tbetbetbe/linuxbrew,telamonian/linuxbrew,danabrand/linuxbrew,tdsmith/linuxbrew,sublimino/linuxbrew,Linuxbrew/linuxbrew,gcstang/linuxbrew,gnubila-france/linuxbrew,telamonian/linuxbrew,telamonian/linuxbrew,arcivanov/linuxbrew,tdsmith/linuxbrew,tdsmith/linuxbrew,Linuxbrew/linuxbrew,tomas/linuxbrew,Linuxbrew/linuxbrew,afdnlw/linuxbrew,Gui13/linuxbrew,digiter/linuxbrew,sarvex/linuxbrew,tbetbetbe/linuxbrew,princeofdarkness76/linuxbrew,saketkc/linuxbrew,drbenmorgan/linuxbrew,Homebrew/linuxbrew,outcoldman/linuxbrew,iggyvolz/linuxbrew,drbenmorgan/linuxbrew,SuperNEMO-DBD/cadfaelbrew,drbenmorgan/linuxbrew,davydden/linuxbrew,dunn/linuxbrew,sjackman/linuxbrew,Gui13/linuxbrew,jbaum98/linuxbrew,brevilo/linuxbrew,Angeldude/linuxbrew,tbetbetbe/linuxbrew,tghs/linuxbrew,hyokosdeveloper/linuxbrew,brevilo/linuxbrew,adamliter/linuxbrew,SuperNEMO-DBD/cadfaelbrew,ebouaziz/linuxbrew,winordie-47/linuxbrew1,jlisic/linuxbrew,jack-and-rozz/linuxbrew,Gui13/linuxbrew,jwillemsen/linuxbrew,10sr/linuxbrew,Homebrew/linuxbrew,arcivanov/linuxbrew,drbenmorgan/linuxbrew,reelsense/linuxbrew,dunn/linuxbrew,caputomarcos/linuxbrew,tghs/linuxbrew,Linuxbrew/linuxbrew,amenk/linuxbrew,digiter/linuxbrew,gcstang/linuxbrew,afdnlw/linuxbrew,lvicentesanchez/linuxbrew,tdsmith/linuxbrew,10sr/linuxbrew,afdnlw/linuxbrew,tghs/linuxbrew,bukzor/linuxbrew,tghs/linuxbrew,ebouaziz/linuxbrew,brendanator/linuxbrew,brendanator/linuxbrew,DoomHammer/linuxbrew,gcstang/linuxbrew,dunn/linuxbrew,hyokosdeveloper/linuxbrew,caputomarcos/linuxbrew,cbeck88/linuxbrew,sublimino/linuxbrew,oneillkza/linuxbrew,romejoe/linuxbrew,trskop/linuxbrew,tomas/linuxbrew,cbeck88/linuxbrew,caputomarcos/linuxbrew,lvicentesanchez/linuxbrew,jlisic/linuxbrew,sjackman/linuxbrew,Angeldude/linuxbrew,jack-and-rozz/linuxbrew,caputomarcos/linuxbrew,digiter/linuxbrew,DoomHammer/linuxbrew,LeonB/linuxbrew,amenk/linuxbrew,tomas/linuxbrew,sarvex/linuxbrew,IsmailM/linuxbrew,jbaum98/linuxbrew,amenk/linuxbrew,DoomHammer/linuxbrew,danabrand/linuxbrew,tghs/linuxbrew,ebouaziz/linuxbrew,bukzor/linuxbrew,sarvex/linuxbrew,dunn/linuxbrew,lvicentesanchez/linuxbrew,ebouaziz/linuxbrew,brevilo/linuxbrew,tjhei/linuxbrew,jwillemsen/linuxbrew,gnubila-france/linuxbrew,winordie-47/linuxbrew1,hyokosdeveloper/linuxbrew,sjackman/linuxbrew,iggyvolz/linuxbrew,jlisic/linuxbrew,jwillemsen/linuxbrew,romejoe/linuxbrew,cbeck88/linuxbrew,danabrand/linuxbrew,iggyvolz/linuxbrew,lvicentesanchez/linuxbrew,winordie-47/linuxbrew1,tbetbetbe/linuxbrew,gnubila-france/linuxbrew,tjhei/linuxbrew,digiter/linuxbrew,LeonB/linuxbrew,tdsmith/linuxbrew,Homebrew/linuxbrew,IsmailM/linuxbrew,sjackman/linuxbrew,sarvex/linuxbrew,jack-and-rozz/linuxbrew,amenk/linuxbrew,arcivanov/linuxbrew,winordie-47/linuxbrew1,adamliter/linuxbrew,LeonB/linuxbrew,sublimino/linuxbrew,tjhei/linuxbrew,princeofdarkness76/linuxbrew,dholm/linuxbrew,digiter/linuxbrew,jbaum98/linuxbrew,sublimino/linuxbrew,IsmailM/linuxbrew,princeofdarkness76/linuxbrew,Angeldude/linuxbrew,dholm/linuxbrew,dholm/linuxbrew,Angeldude/linuxbrew,oneillkza/linuxbrew,outcoldman/linuxbrew,reelsense/linuxbrew,jbaum98/linuxbrew,outcoldman/linuxbrew