require 'mkmf'
if /mswin32/ =~ RUBY_PLATFORM
inc, lib = dir_config('mysql') exit 1 unless have_library("libmysql")
elsif mc = with_config('mysql-config') then
mc = 'mysql_config' if mc == true cflags = `#{mc} --cflags`.chomp exit 1 if $? != 0 libs = `#{mc} --libs`.chomp exit 1 if $? != 0 $CPPFLAGS += ' ' + cflags $libs = libs + " " + $libs
else
inc, lib = dir_config('mysql', '/usr/local') libs = ['m', 'z', 'socket', 'nsl', 'mygcc'] while not find_library('mysqlclient', 'mysql_query', lib, "#{lib}/mysql") do exit 1 if libs.empty? have_library(libs.shift) end
end
have_func('mysql_ssl_set') have_func('rb_str_set_len') have_func('rb_thread_start_timer')
if have_header('mysql.h') then
src = "#include <errmsg.h>\n#include <mysqld_error.h>\n"
elsif have_header('mysql/mysql.h') then
src = "#include <mysql/errmsg.h>\n#include <mysql/mysqld_error.h>\n"
else
exit 1
end
# make mysql constant File.open(“conftest.c”, “w”) do |f|
f.puts src
end if defined? cpp_command then
cpp = Config.expand(cpp_command(''))
else
cpp = Config.expand sprintf(CPP, $CPPFLAGS, $CFLAGS, '')
end if /mswin32/ =~ RUBY_PLATFORM && !/-E/.match(cpp)
cpp << " -E"
end unless system “#{cpp} > confout” then
exit 1
end File.unlink “conftest.c”
error_syms = [] IO.foreach('confout') do |l|
next unless l =~ /errmsg\.h|mysqld_error\.h/ fn = l.split(/\"/)[1] IO.foreach(fn) do |m| if m =~ /^#define\s+([CE]R_[0-9A-Z_]+)/ then error_syms << $1 end end
end File.unlink 'confout' error_syms.uniq!
File.open('error_const.h', 'w') do |f|
error_syms.each do |s| f.puts " rb_define_mysql_const(#{s});" end
end
create_makefile(“mysql”)