worked around compile issues with 1.9.3-p0 on CentOS 5.4

.gitignore

@@ -8,5 +8,6 @@ Makefile
 *.bundle
 .rbenv-version
 *.rbc
+.rbx
 doc
 .yardoc

README.md

@@ -24,9 +24,9 @@ A fast JSON parser and Object marshaller as a Ruby gem.
 
 ## <a name="release">Release Notes</a>
 
-### Release 1.2.3
+### Release 1.2.4
 
- - Fixed compile error for the latest RBX on Travis.
+ - Removed all use of math.h to get around CentOS 5.4 compile problem.
 
 ## <a name="description">Description</a>
 

ext/oj/dump.c

@@ -34,7 +34,6 @@
 #include <time.h>
 #include <stdio.h>
 #include <string.h>
-#include <math.h>
 
 #include "oj.h"
 #include "cache8.h"
@@ -43,6 +42,8 @@
 #define rb_eEncodingError	rb_eException
 #endif
 
+#define DBL_INF	1.e500
+
 typedef unsigned long	ulong;
 
 typedef struct _Out {
@@ -391,39 +392,30 @@ dump_bignum(VALUE obj, Out out) {
     *out->cur = '\0';
 }
 
+// Removed dependencies on math due to problems with CentOS 5.4.
 static void
 dump_float(VALUE obj, Out out) {
     char	buf[64];
     char	*b;
     double	d = rb_num2dbl(obj);
     int		cnt;
 
-    switch (fpclassify(d)) {
-    case FP_NAN:
-	printf("*** nan\n");
-	cnt = sprintf(buf, "%0.16g", d); // used sprintf due to bug in snprintf
-	break;
-    case FP_INFINITE:
-	b = buf;
-	cnt = 8;
-	if (d < 0.0) {
-	    *b++ = '-';
-	    cnt++;
-	}
-	strcpy(b, "Infinity");
-	break;
-    case FP_ZERO:
+    if (0.0 == d) {
 	b = buf;
 	*b++ = '0';
 	*b++ = '.';
 	*b++ = '0';
 	*b++ = '\0';
 	cnt = 3;
-	break;
-    default:
+    } else if (DBL_INF == d) {
+	strcpy(buf, "Infinity");
+	cnt = 8;
+    } else if (-DBL_INF == d) {
+	strcpy(buf, "-Infinity");
+	cnt = 9;
+    } else {
 	cnt = sprintf(buf, "%0.16g", d); // used sprintf due to bug in snprintf
-	break;
-    }
+    }	
     if (out->end - out->cur <= (long)cnt) {
 	grow(out, cnt);
     }

ext/oj/extconf.rb

@@ -24,6 +24,15 @@
   'HAS_PROC_WITH_BLOCK' => ('ruby' == type && '1' == version[0] && '9' == version[1]) ? 1 : 0,
   'HAS_TOP_LEVEL_ST_H' => ('ree' == type || ('ruby' == type &&  '1' == version[0] && '8' == version[1])) ? 1 : 0,
 }
+# This is a monster hack to get around issues with 1.9.3-p0 on CentOS 5.4. SO
+# some reason math.h and string.h contents are not processed. Might be a
+# missing #define. This is the quick and easy way around it.
+if 'x86_64-linux' == RUBY_PLATFORM && '1.9.3' == RUBY_VERSION && '2011-10-30' == RUBY_RELEASE_DATE
+  begin
+    dflags['NEEDS_STPCPY'] = nil if `more /etc/issue`.include?('CentOS release 5.4')
+  rescue Exception => e
+  end
+end
 
 dflags.each do |k,v|
   if v.nil?
@@ -35,3 +44,5 @@
 $CPPFLAGS += ' -Wall'
 #puts "*** $CPPFLAGS: #{$CPPFLAGS}"
 create_makefile(extension_name)
+
+%x{make clean}

ext/oj/fast.c

@@ -112,6 +112,17 @@ static VALUE	doc_size(VALUE self);
 
 VALUE	oj_doc_class = 0;
 
+// This is only for CentOS 5.4 with Ruby 1.9.3-p0.
+#ifdef NEEDS_STPCPY
+char *stpcpy(char *dest, const char *src) {
+    size_t	cnt = strlen(src);
+
+    strcpy(dest, src);
+
+    return dest + cnt;
+}
+#endif
+
 inline static void
 next_non_white(ParseInfo pi) {
     for (; 1; pi->s++) {

lib/oj/version.rb

@@ -1,5 +1,5 @@
 
 module Oj
   # Current version of the module. 
-  VERSION = '1.2.3'
+  VERSION = '1.2.4'
 end

notes

@@ -5,6 +5,10 @@
 
 - next
 
+ - optimize read_hex in load.c
+ - add options for path in fetch
+  - wild cards
+
  - setup travis to run tests
   - does not load the oj gem in some cases
 
@@ -17,8 +21,8 @@
    - object_end
    - array_start
    - array_end
-   - value
-   - key
+   - value - provide accessor call or object to get value
+   - key - provide accessor call or object to get value
 
    - default callbacks use straight C and create Hash or Object according to mode
     - callback object