error information occurred when I execute "rails new demo1 --
database=mysql"

MY environment below:
Mac OS 10.4.11,
Ruby 1.8.7
Rails 3.2.1,
Gem 1.8.15
mysql5 Ver 14.14 Distrib 5.1.61, for apple-darwin8.11.1 (i386) using
readline 6.2
mysql (2.8.1)

Please help me, thx!

more detail message as follows:

Installing mysql2 (0.3.11) with native extensions
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native
extension.

/opt/local/bin/ruby extconf.rb
checking for rb_thread_blocking_region()... no
checking for rb_wait_for_single_fd()... no
checking for mysql.h... yes
checking for errmsg.h... yes
checking for mysqld_error.h... yes
creating Makefile

make
/usr/bin/gcc-4.0 -I. -I. -I/opt/local/lib/ruby/1.8/i686-darwin8 -I. -
DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H -I/opt/local/
include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/opt/local/include -I/
opt/local/include/mysql5/mysql -fPIC -D_P1003_1B_VISIBLE -
DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -
DIGNORE_SIGHUP_SIGQUIT -DDONT_DECLARE_CXA_PURE_VIRTUAL -fno-common -
O2 -arch i386 -fno-common -pipe -fno-common -Wall -funroll-loops -
arch i386 -c client.c
/usr/bin/gcc-4.0 -I. -I. -I/opt/local/lib/ruby/1.8/i686-darwin8 -I. -
DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H -I/opt/local/
include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/opt/local/include -I/
opt/local/include/mysql5/mysql -fPIC -D_P1003_1B_VISIBLE -
DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -
DIGNORE_SIGHUP_SIGQUIT -DDONT_DECLARE_CXA_PURE_VIRTUAL -fno-common -
O2 -arch i386 -fno-common -pipe -fno-common -Wall -funroll-loops -
arch i386 -c mysql2_ext.c
./client.h:20: warning: ‘rb_thread_blocking_region’ defined but not
used
/usr/bin/gcc-4.0 -I. -I. -I/opt/local/lib/ruby/1.8/i686-darwin8 -I. -
DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H -I/opt/local/
include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/opt/local/include -I/
opt/local/include/mysql5/mysql -fPIC -D_P1003_1B_VISIBLE -
DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -
DIGNORE_SIGHUP_SIGQUIT -DDONT_DECLARE_CXA_PURE_VIRTUAL -fno-common -
O2 -arch i386 -fno-common -pipe -fno-common -Wall -funroll-loops -
arch i386 -c result.c
/usr/bin/gcc-4.0 -dynamic -bundle -undefined suppress -flat_namespace -
o mysql2.bundle client.o mysql2_ext.o result.o -L. -L/opt/local/lib -L/
opt/local/lib -L. -L/opt/local/lib -arch i386 -Wl,-rpath,/opt/local/
lib -arch i386 -lruby -L/opt/local/lib -L/opt/local/lib/mysql5/
mysql -lmysqlclient_r -L/opt/local/lib -lz -lm -L/opt/local/lib/ -
lssl -lcrypto -lpthread -ldl -lobjc
/usr/bin/ld: unknown flag: -rpath
collect2: ld returned 1 exit status
make: *** [mysql2.bundle] Error 1


Gem files will remain installed in /opt/local/lib/ruby/gems/1.8/gems/
mysql2-0.3.11 for inspection.
Results logged to /opt/local/lib/ruby/gems/1.8/gems/mysql2-0.3.11/ext/
mysql2/gem_make.out
An error occured while installing mysql2 (0.3.11), and Bundler cannot
continue.
Make sure that `gem install mysql2 -v '0.3.11'` succeeds before
bundling.

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  • Colin Law at Feb 9, 2012 at 1:40 pm

    On 8 February 2012 12:59, alaskayun@gmail.com wrote:
    error information occurred when I execute "rails new demo1 --
    database=mysql"

    MY environment below:
    Mac OS 10.4.11,
    Ruby  1.8.7
    Rails 3.2.1,
    Gem 1.8.15
    mysql5  Ver 14.14 Distrib 5.1.61, for apple-darwin8.11.1 (i386) using
    readline 6.2
    mysql (2.8.1)

    Please help me, thx!

    more detail message as follows:

    Installing mysql2 (0.3.11) with native extensions
    Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native
    extension.
    I am just answering as no one else has, I don't know about Macs so
    don't know the exact solution, but usually this sort of error is
    caused by some development tool or library that is not installed or is
    the wrong version. If you were following a set of instructions for
    installing on the Mac then maybe you have missed installing something.
    If you weren't then possibly you can find some to follow.

    Colin
    /opt/local/bin/ruby extconf.rb
    checking for rb_thread_blocking_region()... no
    checking for rb_wait_for_single_fd()... no
    checking for mysql.h... yes
    checking for errmsg.h... yes
    checking for mysqld_error.h... yes
    creating Makefile

    make
    /usr/bin/gcc-4.0 -I. -I. -I/opt/local/lib/ruby/1.8/i686-darwin8 -I. -
    DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H -I/opt/local/
    include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -I/opt/local/include -I/
    opt/local/include/mysql5/mysql  -fPIC    -D_P1003_1B_VISIBLE -
    DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -
    DIGNORE_SIGHUP_SIGQUIT  -DDONT_DECLARE_CXA_PURE_VIRTUAL -fno-common -
    O2 -arch i386  -fno-common -pipe -fno-common  -Wall -funroll-loops -
    arch i386 -c client.c
    /usr/bin/gcc-4.0 -I. -I. -I/opt/local/lib/ruby/1.8/i686-darwin8 -I. -
    DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H -I/opt/local/
    include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -I/opt/local/include -I/
    opt/local/include/mysql5/mysql  -fPIC    -D_P1003_1B_VISIBLE -
    DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -
    DIGNORE_SIGHUP_SIGQUIT  -DDONT_DECLARE_CXA_PURE_VIRTUAL -fno-common -
    O2 -arch i386  -fno-common -pipe -fno-common  -Wall -funroll-loops -
    arch i386 -c mysql2_ext.c
    ./client.h:20: warning: ‘rb_thread_blocking_region’ defined but not
    used
    /usr/bin/gcc-4.0 -I. -I. -I/opt/local/lib/ruby/1.8/i686-darwin8 -I. -
    DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H -I/opt/local/
    include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE  -I/opt/local/include -I/
    opt/local/include/mysql5/mysql  -fPIC    -D_P1003_1B_VISIBLE -
    DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -
    DIGNORE_SIGHUP_SIGQUIT  -DDONT_DECLARE_CXA_PURE_VIRTUAL -fno-common -
    O2 -arch i386  -fno-common -pipe -fno-common  -Wall -funroll-loops -
    arch i386 -c result.c
    /usr/bin/gcc-4.0 -dynamic -bundle -undefined suppress -flat_namespace -
    o mysql2.bundle client.o mysql2_ext.o result.o -L. -L/opt/local/lib -L/
    opt/local/lib -L. -L/opt/local/lib -arch i386 -Wl,-rpath,/opt/local/
    lib  -arch i386  -lruby -L/opt/local/lib   -L/opt/local/lib/mysql5/
    mysql -lmysqlclient_r -L/opt/local/lib -lz -lm   -L/opt/local/lib/ -
    lssl -lcrypto  -lpthread -ldl -lobjc
    /usr/bin/ld: unknown flag: -rpath
    collect2: ld returned 1 exit status
    make: *** [mysql2.bundle] Error 1


    Gem files will remain installed in /opt/local/lib/ruby/gems/1.8/gems/
    mysql2-0.3.11 for inspection.
    Results logged to /opt/local/lib/ruby/gems/1.8/gems/mysql2-0.3.11/ext/
    mysql2/gem_make.out
    An error occured while installing mysql2 (0.3.11), and Bundler cannot
    continue.
    Make sure that `gem install mysql2 -v '0.3.11'` succeeds before
    bundling.

    --
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    --
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  • Qian alaska at Feb 10, 2012 at 6:46 am
    Hi Colin,

    Thank your answer! I think you are right. I will recompile mysql with
    source package, and assign the directory of "lib,include,config" when the
    gem package installs.

    Thank you again!



    2012/2/9 Colin Law <clanlaw@googlemail.com>
    On 8 February 2012 12:59, alaskayun@gmail.com wrote:
    error information occurred when I execute "rails new demo1 --
    database=mysql"

    MY environment below:
    Mac OS 10.4.11,
    Ruby 1.8.7
    Rails 3.2.1,
    Gem 1.8.15
    mysql5 Ver 14.14 Distrib 5.1.61, for apple-darwin8.11.1 (i386) using
    readline 6.2
    mysql (2.8.1)

    Please help me, thx!

    more detail message as follows:

    Installing mysql2 (0.3.11) with native extensions
    Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native
    extension.
    I am just answering as no one else has, I don't know about Macs so
    don't know the exact solution, but usually this sort of error is
    caused by some development tool or library that is not installed or is
    the wrong version. If you were following a set of instructions for
    installing on the Mac then maybe you have missed installing something.
    If you weren't then possibly you can find some to follow.

    Colin
    /opt/local/bin/ruby extconf.rb
    checking for rb_thread_blocking_region()... no
    checking for rb_wait_for_single_fd()... no
    checking for mysql.h... yes
    checking for errmsg.h... yes
    checking for mysqld_error.h... yes
    creating Makefile

    make
    /usr/bin/gcc-4.0 -I. -I. -I/opt/local/lib/ruby/1.8/i686-darwin8 -I. -
    DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H -I/opt/local/
    include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/opt/local/include -I/
    opt/local/include/mysql5/mysql -fPIC -D_P1003_1B_VISIBLE -
    DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -
    DIGNORE_SIGHUP_SIGQUIT -DDONT_DECLARE_CXA_PURE_VIRTUAL -fno-common -
    O2 -arch i386 -fno-common -pipe -fno-common -Wall -funroll-loops -
    arch i386 -c client.c
    /usr/bin/gcc-4.0 -I. -I. -I/opt/local/lib/ruby/1.8/i686-darwin8 -I. -
    DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H -I/opt/local/
    include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/opt/local/include -I/
    opt/local/include/mysql5/mysql -fPIC -D_P1003_1B_VISIBLE -
    DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -
    DIGNORE_SIGHUP_SIGQUIT -DDONT_DECLARE_CXA_PURE_VIRTUAL -fno-common -
    O2 -arch i386 -fno-common -pipe -fno-common -Wall -funroll-loops -
    arch i386 -c mysql2_ext.c
    ./client.h:20: warning: ‘rb_thread_blocking_region’ defined but not
    used
    /usr/bin/gcc-4.0 -I. -I. -I/opt/local/lib/ruby/1.8/i686-darwin8 -I. -
    DHAVE_MYSQL_H -DHAVE_ERRMSG_H -DHAVE_MYSQLD_ERROR_H -I/opt/local/
    include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/opt/local/include -I/
    opt/local/include/mysql5/mysql -fPIC -D_P1003_1B_VISIBLE -
    DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -
    DIGNORE_SIGHUP_SIGQUIT -DDONT_DECLARE_CXA_PURE_VIRTUAL -fno-common -
    O2 -arch i386 -fno-common -pipe -fno-common -Wall -funroll-loops -
    arch i386 -c result.c
    /usr/bin/gcc-4.0 -dynamic -bundle -undefined suppress -flat_namespace -
    o mysql2.bundle client.o mysql2_ext.o result.o -L. -L/opt/local/lib -L/
    opt/local/lib -L. -L/opt/local/lib -arch i386 -Wl,-rpath,/opt/local/
    lib -arch i386 -lruby -L/opt/local/lib -L/opt/local/lib/mysql5/
    mysql -lmysqlclient_r -L/opt/local/lib -lz -lm -L/opt/local/lib/ -
    lssl -lcrypto -lpthread -ldl -lobjc
    /usr/bin/ld: unknown flag: -rpath
    collect2: ld returned 1 exit status
    make: *** [mysql2.bundle] Error 1


    Gem files will remain installed in /opt/local/lib/ruby/gems/1.8/gems/
    mysql2-0.3.11 for inspection.
    Results logged to /opt/local/lib/ruby/gems/1.8/gems/mysql2-0.3.11/ext/
    mysql2/gem_make.out
    An error occured while installing mysql2 (0.3.11), and Bundler cannot
    continue.
    Make sure that `gem install mysql2 -v '0.3.11'` succeeds before
    bundling.

    --
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    Groups "Ruby on Rails: Talk" group.
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  • Edson Carlos C. at Nov 9, 2012 at 1:25 am
    problem solve, type this command

    sudo apt-get install libmysqlclient-dev

    sudo apt-get install mysql

    then run gem install mysql2

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postedFeb 9, '12 at 11:21a
activeNov 9, '12 at 1:25a
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