I believe these are the kind of changes that need to go in to make it compile with 1.9.1 and 1.9.2

    RSTRING(foo)->len and RSTRING(foo)->ptr
    becomes:
    RSTRING_LEN(foo) and RSTRING_PTR(foo)

    RARRAY(bar)->len and RARRAY(bar)->ptr
    becomes:
    RARRAY_LEN(bar) and RARRAY_PTR(bar)

I am attaching the patches that I'm using currently.

Date: 2012-01-17 13:26
Sender: Derek Wang

I also got similar issue when installing xslt gem. Here is the
errors I got:

gcc -I. -I/Users/wang/.rvm/rubies/ruby-1.9.2-p290/include/ruby-1.
9.1/x86_64-darwin11.2.0 -I/Users/wang/.rvm/rubies/ruby-1.9.2-p290
/include/ruby-1.9.1/ruby/backward
-I/Users/wang/.rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1
-I. -DRUBY_EXTCONF_H=\"extconf.h\" -D_XOPEN_SOURCE
-D_DARWIN_C_SOURCE   -fno-common -g -Wall -I/usr/include/libxml2
-I/usr/include/libxml2 -O3 -ggdb -Wextra -Wno-unused-parameter
-Wno-parentheses -Wpointer-arith -Wwrite-strings
-Wno-missing-field-initializers -Wshorten-64-to-32 -Wno-long-long
-fno-common -pipe -DUSE_ERROR_HANDLER -DUSE_EXSLT  -o extfunc.o
-c extfunc.c
In file included from /usr/include/libxml2/libxml/parser.h:798,
                 from /usr/include/libxml2/libxml/globals.h:18,
                 from /usr/include/libxml2/libxml/threads.h:35,
                 from /usr/include/libxml2/libxml/xmlmemory.h:218
,
                 from xslt.h:33,
                 from extfunc.c:19:
/usr/include/libxml2/libxml/encoding.h:41: error: conflicting
types for ‘OnigUChar’
/Users/wang/.rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1/ruby/o
niguruma.h:106: error: previous declaration of ‘OnigUChar’
was here
extfunc.c: In function ‘value2xpathObj’:
extfunc.c:141: warning: implicit conversion shortens 64-bit value
into a 32-bit value
make: *** [extfunc.o] Error 1

I am using ruby 1.9.2p290 on Mac OS Lion, and I am trying to
install ruby-xslt (0.9.8).

Do you think this patch would solve the problem? if so , can
you advise how to apply this patch?

Date: 2010-10-27 06:41
Sender: Bernhard Haslhofer

I have the same problem. libxslt-ruby doesn't compile on my system.
Here is the error message I receive when calling "gem install
ruby-xslt":


/usr/local/Cellar/ruby/1.9.2-p0/bin/ruby extconf.rb
extconf.rb:18:Warning: Gem::SourceIndex#search support for String
patterns is deprecated, use #find_name
checking for atan() in -lm... no
checking for atan() in -lm... yes
checking for inflate() in -lz... yes
checking for xmlXPtrNewRange() in -lxml2... yes
checking for libxml/xmlversion.h... no
checking for libxml/xmlversion.h in
/opt/include/libxml2,/usr/local/include/libxml2,/usr/include/libx
ml2... yes
checking for xsltApplyStylesheet() in -lxslt... yes
checking for xslt.h... no
checking for xslt.h in /opt/include/libxslt,/usr/local/include/li
bxslt,/usr/include/libxslt... yes
checking for exsltLibexsltVersion() in -lexslt... yes
checking for exslt.h... no
checking for exslt.h in /opt/include/libexslt,/usr/local/include/
libexslt,/usr/include/libexslt... yes
checking for libxml/ruby_libxml.h... yes
checking for libxml/ruby_xml_document.h... yes
creating extconf.h
creating Makefile

make
/usr/bin/cc -I. -I/usr/local/Cellar/ruby/1.9.2-p0/include/ruby-1.
9.1/x86_64-darwin10.4.0 -I/usr/local/Cellar/ruby/1.9.2-p0/include
/ruby-1.9.1/ruby/backward
-I/usr/local/Cellar/ruby/1.9.2-p0/include/ruby-1.9.1 -I.
-I/usr/local/Cellar/ruby/1.9.2-p0/lib/ruby/gems/1.9.1/gems/libxml
-ruby-1.1.4/ext -I/usr/include/libxml2 -I/usr/include/libxslt
-I/usr/include/libexslt -DRUBY_EXTCONF_H=\"extconf.h\"
-I/usr/local/Cellar/readline/6.1/include -D_XOPEN_SOURCE
-D_DARWIN_C_SOURCE   -fno-common -O3 -march=core2 -msse4.1 -w
-pipe -fno-common  -o libxslt.o -c libxslt.c
In file included from /usr/include/libxml2/libxml/parser.h:798,
                 from libxslt.h:10,
                 from libxslt.c:5:
/usr/include/libxml2/libxml/encoding.h:41: error: conflicting
types for ‘OnigUChar’
/usr/local/Cellar/ruby/1.9.2-p0/include/ruby-1.9.1/ruby/oniguruma
.h:106: error: previous declaration of ‘OnigUChar’ was here
make: *** [libxslt.o] Error 1

Date: 2010-06-11 09:19
Sender: Pratik Sinha

Some patches for ruby1.9.2. I saw that there were some
additional incompatibilities with ruby1.9.2 regarding STR2CSTR.

ruby 1.9.1 patch file is called xslt-patches.tar.gz
ruby 1.9.2 patch files is called xslt-patches2.tar.gz