[cfe-dev] MacRuby compile issues.

[रजनीश]

warning are printed twice for each arch, is this by design?

~/Developer/MacRuby-> clang -I. -I./include -I/usr/include/libxml2 - 
arch i386 -arch x86_64 -fno-common -pipe -O2 -g -Wall -Wno-parentheses  
-Wno-deprecated-declarations -Werror -c iseq.c -o iseq.o
clang: warning: argument unused during compilation: '-fno-common'
clang: warning: argument unused during compilation: '-Wno-parentheses'
clang: warning: argument unused during compilation: '-Wno-deprecated- 
declarations'
iseq.c:345:45: warning: expression result unused
static inline VALUE CHECK_INTEGER(VALUE v) {NUM2LONG(v); return v;}
                                             ^~~~~~~~~~~
./include/ruby/ruby.h:384:34: note: instantiated from:
#define NUM2LONG(x) (FIXNUM_P(x)?FIX2LONG(x):rb_num2long((VALUE)x))
                                  ^
./include/ruby/ruby.h:227:21: note: instantiated from:
#define FIX2LONG(x) RSHIFT((SIGNED_VALUE)x,1)
                     ^
./include/ruby/config.h:223:25: note: instantiated from:
#define RSHIFT(x,y) ((x)>>(int)y)
                      ~~~^
1 diagnostic generated.
iseq.c:345:45: warning: expression result unused
static inline VALUE CHECK_INTEGER(VALUE v) {NUM2LONG(v); return v;}
                                             ^~~~~~~~~~~
./include/ruby/ruby.h:384:34: note: instantiated from:
#define NUM2LONG(x) (FIXNUM_P(x)?FIX2LONG(x):rb_num2long((VALUE)x))
                                  ^
./include/ruby/ruby.h:227:21: note: instantiated from:
#define FIX2LONG(x) RSHIFT((SIGNED_VALUE)x,1)
                     ^
./include/ruby/config.h:223:25: note: instantiated from:
#define RSHIFT(x,y) ((x)>>(int)y)
                      ~~~^
1 diagnostic generated.


with saved-temps warning is much more readable.

==== with saved-temps =============
~/Developer/MacRuby-> clang -I. -I./include -I/usr/include/libxml2 - 
arch i386 -save-temps -fno-common -pipe -O2 -g -Wall -Wno-parentheses - 
Wno-deprecated-declarations -Werror -c iseq.c -o iseq.o
clang: warning: argument unused during compilation: '-fno-common'
clang: warning: argument unused during compilation: '-Wno-parentheses'
clang: warning: argument unused during compilation: '-Wno-deprecated- 
declarations'
In file included from iseq.c:1:
iseq.c:345:87: warning: expression result unused
static inline VALUE CHECK_INTEGER(VALUE v) {((((long) 
(v))&RUBY_FIXNUM_FLAG)?(((long)v)>>(int)1):rb_num2long((VALUE)v));  
return v;}
                                                                              ~ 
~~~~~~~~^ ~~~~~~
1 diagnostic generated.

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