[Bug c/26005] New: Non-existent function/macro isinf() - correctly rejected by gcc - accepted by gcc -O

[dbb at hadenmead dot com]

bug.i
------
# 1 "bug.c"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "bug.c"

int main ()
{
 float f = 1.0;

 if(isinf(f))
  return 1 ;
 return 0;
}
------

Command that does NOT trigger bug
        gcc bug.c
Output of gcc when bug NOT triggered
        Undefined                       first referenced
        symbol                              in file
        isinf                               bug.o
        ld: fatal: Symbol referencing errors. No output written to a.out
        collect2: ld returned 1 exit status
Command that triggers bug
        gcc -O bug.c
Output of gcc when bug IS triggered
        (None)


-- 
           Summary: Non-existent function/macro isinf() - correctly rejected
                    by gcc - accepted by gcc -O
           Product: gcc
           Version: 4.0.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dbb at hadenmead dot com
 GCC build triplet: sparc-sun-solaris2.9
  GCC host triplet: sparc-sun-solaris2.9
GCC target triplet: sparc-sun-solaris2.9


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26005