Compatibility with Ruby 1.9.1

[justfalter]

I can't get it to build under Ruby 1.9.1-p243:

/Users/mryan/.rvm/rubies/ruby-1.9.1-p243/bin/ruby extconf.rb
creating Makefile

make
gcc -I. -I/Users/mryan/.rvm/rubies/ruby-1.9.1-p243/include/ruby-1.9.1/i386-darwin10.5.0 -I/Users/mryan/.rvm/rubies/ruby-1.9.1-p243/include/ruby-1.9.1/ruby/backward -I/Users/mryan/.rvm/rubies/ruby-1.9.1-p243/include/ruby-1.9.1 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -fno-common -arch i386 -O2 -g -Wall -Wno-parentheses -fno-common -pipe -fno-common -std=c99 -I./ruby_headers/ -o free.o -c free.c
free.c:41: error: field ‘typeddata’ has incomplete type
free.c: In function ‘object_free’:
free.c:187: warning: implicit declaration of function ‘RTYPEDDATA_P’
free.c:252: warning: format ‘%x’ expects type ‘unsigned int’, but argument 2 has type ‘long unsigned int’
make: *** [free.o] Error 1

It appears to be because 'RTypedData' isn't defined until 1.9.2.

[banister]

ah, I only tested it on ruby 1.8.7 and ruby 1.9.2. I can try to provide 1.9.1 support over the next few days, thanks :)

[banister]

not going to provide 1.9.1 support, sorry :(