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POFailed to build iconv gem on ruby 1.9.2
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copied!<p>I fail to install the 'iconv' gem, because of weird build errors.<br> I have build the 'libiconv' from source and linked the .h and .dylib into the rvm's include and lib directory. When I run</p> <pre><code>gem install iconv </code></pre> <p>Gem outputs strange build errors:</p> <p>Building native extensions. This could take a while...</p> <pre><code>ERROR: Error installing iconv: ERROR: Failed to build gem native extension. /Users/myusername/.rvm/rubies/ruby-1.9.2-rc2/bin/ruby extconf.rb checking for iconv() in iconv.h... no checking for iconv() in -liconv... yes checking for const of iconv() 2nd argument... no creating Makefile make gcc -I. -I/Users/myusername/.rvm/rubies/ruby-1.9.2-rc2/include/ruby-1.9.1/x86_64-darwin10.4.0 -I/Users/myusername/.rvm/rubies/ruby-1.9.2-rc2/include/ruby-1.9.1/ruby/backward -I/Users/myusername/.rvm/rubies/ruby-1.9.2-rc2/include/ruby-1.9.1 -I. -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -fno-common -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 -o iconv.o -c iconv.c In file included from iconv.c:21: /Users/myusername/.rvm/rubies/ruby-1.9.2-rc2/include/ruby-1.9.1/ruby/backward/st.h:2:2: warning: #warning use "ruby/st.h" instead of bare "st.h" iconv.c:22:20: error: intern.h: No such file or directory iconv.c: In function ‘map_charset’: iconv.c:139: error: ‘struct RHash’ has no member named ‘tbl’ iconv.c:139: error: ‘struct RHash’ has no member named ‘tbl’ iconv.c:142: error: ‘struct RHash’ has no member named ‘tbl’ iconv.c: In function ‘iconv_create’: iconv.c:187: error: ‘struct RString’ has no member named ‘len’ iconv.c:188: error: ‘struct RString’ has no member named ‘len’ iconv.c:190: error: ‘struct RString’ has no member named ‘ptr’ iconv.c:190: error: ‘struct RString’ has no member named ‘ptr’ iconv.c:190: error: ‘struct RString’ has no member named ‘ptr’ iconv.c:190: error: ‘struct RString’ has no member named ‘ptr’ iconv.c:192: error: ‘struct RString’ has no member named ‘ptr’ iconv.c:193: error: ‘struct RString’ has no member named ‘len’ iconv.c: In function ‘iconv_fail’: iconv.c:328: error: ‘struct RString’ has no member named ‘len’ iconv.c: In function ‘iconv_fail_retry’: iconv.c:352: error: ‘ruby_errinfo’ undeclared (first use in this function) iconv.c:352: error: (Each undeclared identifier is reported only once iconv.c:352: error: for each function it appears in.) iconv.c: In function ‘rb_str_derive’: iconv.c:371: error: ‘struct RString’ has no member named ‘ptr’ iconv.c:371: error: ‘struct RString’ has no member named ‘len’ iconv.c:373: error: ‘struct RString’ has no member named ‘ptr’ iconv.c:373: error: ‘struct RString’ has no member named ‘len’ iconv.c:374: error: ‘struct RString’ has no member named ‘ptr’ iconv.c: In function ‘iconv_convert’: iconv.c:418: error: ‘struct RArray’ has no member named ‘len’ iconv.c:418: error: ‘struct RArray’ has no member named ‘ptr’ iconv.c:436: error: ‘struct RString’ has no member named ‘len’ iconv.c:437: error: ‘struct RString’ has no member named ‘ptr’ iconv.c:455: warning: comparison of unsigned expression >= 0 is always true iconv.c:458: warning: comparison between signed and unsigned iconv.c:459: warning: comparison between signed and unsigned iconv.c:491: warning: implicit conversion shortens 64-bit value into a 32-bit value iconv.c:494: warning: implicit conversion shortens 64-bit value into a 32-bit value iconv.c:497: error: ‘struct RArray’ has no member named ‘len’ iconv.c:498: error: ‘struct RArray’ has no member named ‘ptr’ iconv.c:499: error: ‘struct RArray’ has no member named ‘ptr’ iconv.c:501: error: ‘struct RString’ has no member named ‘len’ iconv.c:502: error: ‘struct RString’ has no member named ‘ptr’ iconv.c:514: warning: implicit conversion shortens 64-bit value into a 32-bit value iconv.c: In function ‘iconv_s_convert’: iconv.c:615: error: ‘struct RString’ has no member named ‘len’ make: *** [iconv.o] Error 1 Gem files will remain installed in /Users/myusername/.rvm/gems/ruby-1.9.2-rc2/gems/iconv-0.1 for inspection. Results logged to /Users/myusername/.rvm/gems/ruby-1.9.2-rc2/gems/iconv-0.1/ext/iconv/gem_make.out </code></pre> <p>How do I make it install and build properly.</p> <p>Thanks</p>

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