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need to declare the prototype of nan() if missing

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* include/ruby/missing.h (nan): need to declare the prototype of nan() if
  missing.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62061 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
usa 2018-01-26 16:38:38 +00:00
parent 78c81718d2
commit d2bd7d7b98
2 changed files with 7 additions and 0 deletions
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4
include/ruby/missing.h
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@ -185,6 +185,10 @@ RUBY_EXTERN int isnan(double);
# endif
#endif
#ifndef HAVE_NAN
RUBY_EXTERN double nan(const char *);
#endif
#ifndef HAVE_NEXTAFTER
RUBY_EXTERN double nextafter(double x, double y);
#endif

3
win32/Makefile.sub
View file

@ -736,6 +736,9 @@ $(CONFIG_H): $(MKFILES) $(srcdir)/win32/Makefile.sub $(win_srcdir)/Makefile.sub
#define HAVE_FLOCK 1
#define HAVE_ISNAN 1
#define HAVE_FINITE 1
!if $(RT_VAR) >= 120
#define HAVE_NAN 1
!endif
#define HAVE_HYPOT 1
#define HAVE_FMOD 1
#define HAVE_FREXP 1