make fails with....

[mlozier]

bcd/bcd.c: In function ‘main’:
bcd/bcd.c:138:2: warning: ignoring return value of ‘setregid’, declared with attribute warn_unused_result [-Wunused-result]
setregid(getgid(), getgid());
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
gcc bcd/bcd.o -o bcd/bcd
gcc -g -O2 -Wall -W -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wcast-align -Wcast-qual -Wwrite-strings -DNEW_STYLE -Iinclude -Iboggle/boggle -c boggle/boggle/bog.c -o boggle/boggle/bog.o
In file included from boggle/boggle/bog.c:58:0:
boggle/boggle/extern.h:46:7: error: conflicting types for ‘getline’
char *getline(char *);
^~~~~~~
In file included from include/stdio.h:35:0,
from boggle/boggle/bog.c:51:
/usr/include/stdio.h:616:20: note: previous declaration of ‘getline’ was here
extern _IO_ssize_t getline (char **__restrict __lineptr,
^~~~~~~
boggle/boggle/bog.c: In function ‘main’:
boggle/boggle/bog.c:134:2: warning: ignoring return value of ‘setregid’, declared with attribute warn_unused_result [-Wunused-result]
setregid(getgid(), getgid());
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
GNUmakefile:158: recipe for target 'boggle/boggle/bog.o' failed
make: *** [boggle/boggle/bog.o] Error 1

Also, is there a way to get make to just compile the tetris application?

Many thanks in advance for a reply.

[hiankun]

As the error message said, the getline function has conflicted with the same name in stdio.h file.

I replaced all the getline by my_getline from all the files given by the error message, and successfully compiled the package.

Note that there are several games also have getline, so you have to replace all of them.

[oppiet30]

gcc -g -O2 -Wall -W -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wcast-align -Wcast-qual -Wwrite-strings -DNEW_STYLE -Iinclude -Iboggle/boggle -c boggle/boggle/bog.c -o boggle/boggle/bog.o
In file included from boggle/boggle/bog.c:58:
boggle/boggle/extern.h:46:10: error: conflicting types for ‘getline’; have ‘char *(char *)’
46 | char *getline(char *);
| ^~~~~~~
In file included from include/stdio.h:35,
from boggle/boggle/bog.c:51:
/usr/include/stdio.h:703:18: note: previous declaration of ‘getline’ with type ‘__ssize_t(char ** restrict, size_t * restrict, FILE * restrict)’ {aka ‘long int(char ** restrict, long unsigned int * restrict, FILE * restrict)’}
703 | extern __ssize_t getline (char **__restrict __lineptr,
| ^~~~~~~
make: *** [GNUmakefile:158: boggle/boggle/bog.o] Error 1