Bug #12417: warning: "isfinite" redefined when compiling bigdecimal.c on cygwin

• Status: Closed
• Assignee: shyouhei (Shyouhei Urabe)
• Target version: -
• ruby -v: ruby 2.4.0dev (2016-05-23 trunk 55132) [x86_64-cygwin]
• Backport: 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONTNEED

[duerst (Martin Dürst)]

When using make up; make install-nodoc, I get the following warning:

compiling bigdecimal.c
bigdecimal.c:34:0: warning: "isfinite" redefined
 # define isfinite(x) finite(x)
 ^
In file included from ../.././include/ruby/missing.h:23:0,
                 from ../.././include/ruby/defines.h:125,
                 from ../.././include/ruby/ruby.h:36,
                 from bigdecimal.h:12,
                 from bigdecimal.c:13:
/usr/include/math.h:238:0: note: this is the location of the previous definition
     #define isfinite(__x) (__builtin_isfinite (__x))
 ^
cc1: warning: unrecognized command line option ‘-Wno-self-assign’
cc1: warning: unrecognized command line option ‘-Wno-constant-logical-operand’
cc1: warning: unrecognized command line option ‘-Wno-parentheses-equality’
cc1: warning: unrecognized command line option ‘-Wno-tautological-compare’
linking shared-object bigdecimal.so

[usa (Usaku NAKAMURA)]

• Status changed from Open to Closed

Applied in changeset r55133.

---

• ext/bigdecimal/bigdecimal.c (isfinite): get rid of a warning on
  cygwin. [Bug #12417][ruby-core:75691]

[usa (Usaku NAKAMURA)]

• Backport changed from 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN to 2.1: DONTNEED, 2.2: DONTNEED, 2.3: DONTNEED

[usa (Usaku NAKAMURA)]

• Related to Bug #12414: FloatDomainError in infinite Range#include? for certain BigDecimals added