Add -lm to build instructions Without this, the build fails with the following error: /usr/bin/ld: /tmp/cch2zAHq.o: undefined reference to symbol 'sincos@@GLIBC_2.2.5' /usr/bin/ld: /usr/lib/libm.so.6: error adding symbols: DSO missing from command line collect2: error: ld returned 1 exit status
1 files changed, 1 insertions(+), 1 deletions(-) M README.md
M README.md => README.md +1 -1
@@ 7,7 7,7 @@ A [vector editor](https://wiki.xxiivv.com/dotgrid), written in ANSI C. You must have [SDL2](https://wiki.libsdl.org/). ``` cc dotgrid.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -L/usr/local/lib -lSDL2 -o dotgrid cc dotgrid.c -std=c89 -Os -DNDEBUG -g0 -s -Wall -L/usr/local/lib -lSDL2 -lm -o dotgrid ``` ## I/O