gcc - Error when compiling Ruby 1.8.7 from source: math.c:37: error: missing binary operator before token "(" -

-

this odd:

: josh@josh; wget ftp://ftp.ruby-lang.org/pub/ruby/1.8/ruby-1.8.7.tar.bz2 : josh@josh; tar xvjf ruby-1.8.7.tar.bz2  : josh@josh; cd ruby-1.8.7/ : josh@josh; cflags='-o0 -g -wall' ./configure --disable-pthread : josh@josh; make gcc -o0 -g -wall    -druby_export -d_gnu_source=1  -i. -i.    -c array.c [...] gcc -o0 -g -wall    -druby_export -d_gnu_source=1  -i. -i.    -c math.c math.c: in function ‘domain_check’: math.c:37: error: missing binary operator before token "(" make: *** [math.o] error 1

sure enough, math.c cannot compiled:

: josh@josh; gcc -o0 -g -wall    -druby_export -d_gnu_source=1  -i. -i.    -c math.c math.c: in function ‘domain_check’: math.c:37: error: missing binary operator before token "("

there's nothing wrong math.c:

static void domain_check(x, msg)     double x;     char *msg; {     while(1) {     if (errno) {         rb_sys_fail(msg);     }     if (isnan(x)) { #if defined(edom)         errno = edom; #elif define(erange)  # <== line 37         errno = erange; #endif         continue;     }     break;     } }

let's see pre-processor generating:

: josh@josh; gcc -e -o0 -g -wall    -druby_export -d_gnu_source=1  -i. -i.    -c math.c >/tmp/math.c  math.c:37: error: missing binary operator before token "("

ok, looks alright, let's compile , see problem is:

: josh@josh; gcc -o0 -g -wall    -druby_export -d_gnu_source=1  -i. -i.    -c /tmp/math.c : josh@josh; echo $? 0 : josh@josh; ls -l math.o -rw-r--r-- 1 josh josh 20904 2011-03-04 13:47 math.o

now i've manually compiled math.c math.o, can build ruby. i'd still know in world going on.

any ideas?

it should read "#elif defined(xxx)"


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