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Avoid redefining MRB_WORDBOX_NO_FLOAT_TRUNCATE

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Adding `MRB_WORDBOX_NO_FLOAT_TRUNCATE` to the build configuration in 32-bit CPU mode had a double definition.

```console
% cat myconf.rb
MRuby::Build.new do
  toolchain "clang"
  defines << "MRB_WORDBOX_NO_FLOAT_TRUNCATE"
  cc.flags << "-m32"
  linker.flags << "-m32"
  enable_debug
end

% rake CONFIG=myconf.rb
CPP   src/array.c -> build/host/src/array.pi
In file included from /var/tmp/mruby/src/array.c:7:
In file included from /var/tmp/mruby/include/mruby.h:115:
In file included from /var/tmp/mruby/include/mruby/value.h:203:
/var/tmp/mruby/include/mruby/boxing_word.h:11:10: warning:
      'MRB_WORDBOX_NO_FLOAT_TRUNCATE' macro redefined [-Wmacro-redefined]
# define MRB_WORDBOX_NO_FLOAT_TRUNCATE
         ^
<command line>:3:9: note: previous definition is here
#define MRB_WORDBOX_NO_FLOAT_TRUNCATE 1
        ^
1 warning generated.
...SNIP...
```
This commit is contained in:
dearblue
2021-10-30 09:55:35 +09:00
parent fca63c6060
commit fa8bd00b57
1 changed files with 1 additions and 1 deletions
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include/mruby/boxing_word.h
+1 -1
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@@ -7,7 +7,7 @@
#ifndef MRUBY_BOXING_WORD_H
#define MRUBY_BOXING_WORD_H
#if defined(MRB_32BIT) && !defined(MRB_USE_FLOAT32)
#if defined(MRB_32BIT) && !defined(MRB_USE_FLOAT32) && !defined(MRB_WORDBOX_NO_FLOAT_TRUNCATE)
# define MRB_WORDBOX_NO_FLOAT_TRUNCATE
#endif