/usr/local/bin/ruby -r ./siteconf20151018-4473-hrdx75.rb extconf.rb
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... no
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
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Using mysql_config at /usr/bin/mysql_config
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checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
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Setting libpath to /usr/lib64
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creating Makefile

make "DESTDIR=" clean

make "DESTDIR="
compiling client.c
compiling infile.c
compiling mysql2_ext.c
compiling result.c
result.c: In function ‘msec_char_to_uint’:
result.c:186: 警告: 符合付きと符合無しの整数式同士の比較です
linking shared-object mysql2/mysql2.so

make "DESTDIR=" install
/usr/bin/install -c -m 0755 mysql2.so ./.gem.20151018-4473-1xdw8g1/mysql2