🚀 go-pugleaf

Here's a bug I ran across when compiling glibc-1.05 on a Sparc running
SunOS 4.1.2 (using GCC 2.3.1).  GCC reports an extraneous error
(conflicting types for `puts'); note that this error disappears when
the declaration for `strlen' is removed.

This error does not occur on other architectures that I've tried
(DecStation 5000/20 running Ultrix 4.2a, HP 9000/300 running HP/UX
7.0, Sun 3/50 running SunOS 4.1.2).

Vivek

----------------------------------------------------------------
Vivek Singhal      singhal@cs.utexas.edu  Office: (512) 471-9711
Univ of TX @ Austin, CS Dept, TAY 3.104C    Home: (512) 385-1855

% cat puts-bug.c 
typedef unsigned long int size_t;
typedef struct stdio_file FILE;
extern FILE *stdout;
extern int putchar (int c);
extern int fputs (const char *s, FILE * stream);
extern int puts (const char *s);
extern size_t strlen (const char *s);

int
puts (const char *s)
{
  return (fputs (s, stdout) || putchar ('\n') == (-1) ? (-1) : 0);
}
% gcc -v -c puts-bug.c
Reading specs from /p/lib/gcc-lib/sun4/2.3.1/specs
gcc version 2.3.1
 /p/lib/gcc-lib/sun4/2.3.1/cpp -lang-c -v -undef -D__GNUC__=2 -Dsparc -Dsun -Dunix -D__sparc__ -D__sun__ -D__unix__ -D__sparc -D__sun -D__unix puts-bug.c /usr/tmp/cca23212.i
GNU CPP version 2.3.1 (sparc)
 /p/lib/gcc-lib/sun4/2.3.1/cc1 /usr/tmp/cca23212.i -quiet -dumpbase puts-bug.c -version -o /usr/tmp/cca23212.s
GNU C version 2.3.1 (sparc) compiled by GNU C version 2.3.1.
puts-bug.c:11: conflicting types for `puts'
puts-bug.c:6: previous declaration of `puts'