"gem install mysql" failing horribly on OS X leaopard

Hi – I’m having trouble getting the mysql gem to install on an OS X
Leopard machine.
Typical output I get from the console is this:

esft 523 $ sudo env ARCHFLAGS="-arch i386" gem install mysql -- --with-mysql-include=/usr/local/mysql/include --with-mysql-lib=/usr/local/mysql/lib Password: Building native extensions. This could take a while... ERROR: Error installing mysql: ERROR: Failed to build gem native extension.

/usr/local/bin/ruby extconf.rb install mysql –
–with-mysql-include=/usr/local/mysql/include
–with-mysql-lib=/usr/local/mysql/lib
checking for mysql_query() in -lmysqlclient… no
checking for main() in -lm… yes
checking for mysql_query() in -lmysqlclient… no
checking for main() in -lz… yes
checking for mysql_query() in -lmysqlclient… no
checking for main() in -lsocket… no
checking for mysql_query() in -lmysqlclient… no
checking for main() in -lnsl… no
checking for mysql_query() in -lmysqlclient… no
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers. Check the mkmf.log file for more
details. You may need configuration options.

Provided configuration options:
–with-opt-dir
–without-opt-dir
–with-opt-include
–without-opt-include=${opt-dir}/include
–with-opt-lib
–without-opt-lib=${opt-dir}/lib
–with-make-prog
–without-make-prog
–srcdir=.
–curdir
–ruby=/usr/local/bin/ruby
–with-mysql-config
–without-mysql-config
–with-mysql-dir
–without-mysql-dir
–with-mysql-include=${mysql-dir}/include
–with-mysql-lib=${mysql-dir}/lib
–with-mysqlclientlib
–without-mysqlclientlib
–with-mlib
–without-mlib
–with-mysqlclientlib
–without-mysqlclientlib
–with-zlib
–without-zlib
–with-mysqlclientlib
–without-mysqlclientlib
–with-socketlib
–without-socketlib
–with-mysqlclientlib
–without-mysqlclientlib
–with-nsllib
–without-nsllib
–with-mysqlclientlib
–without-mysqlclientlib

Gem files will remain installed in
/usr/local/lib/ruby/gems/1.8/gems/mysql-2.7 for inspection.
Results logged to
/usr/local/lib/ruby/gems/1.8/gems/mysql-2.7/gem_make.out

And when I look in the mkmf.log file, at the end of a very long series
of entries, I see this:

"gcc -o conftest -I. -I/usr/local/lib/ruby/1.8/universal-darwin8.0 -I. -I/usr/local/mysql/include -I/usr/local/include -g -O2 -fno-common -pipe -fno-common conftest.c -L"/usr/local/lib" -L"/usr/local/mysql/lib" -L"/usr/local/lib" -L"/usr/local/lib/mysql" -arch i386 -lz -lm -lruby-static -lmysqlclient -lz -lm -lpthread -ldl -lobjc " ld: warning in /usr/local/mysql/lib/libmysqlclient.dylib, file is not of required architecture Undefined symbols: "_mysql_query", referenced from: _t in ccxGmlzF.o ld: symbol(s) not found collect2: ld returned 1 exit status checked program was: /* begin */ 1: /*top*/ 2: int main() { return 0; } 3: int t() { mysql_query(); return 0; } /* end */

Can anyone offer me any advice on getting this to work?
Cheers,
Doug.

On 7 Sep 2008, at 12:47, Doug L. wrote:

ld: warning in /usr/local/mysql/lib/libmysqlclient.dylib, file is
not of
required architecture

This appears to be the key bit: you’re asking for an i386 executable
but that library is apparently a different architecture (lipo -
detailed_info /usr/local/mysql/lib/libmysqlclient.dylib will tell you
what it is)

Fred

Cheers for that – could it be I have installed the wrong version of
MySQL?
I grabbed it when I’d just got my Mac & had never used one before.
The results from typing in what you suggest are:

input file /usr/local/mysql/lib/libmysqlclient.dylib is not a fat file
Non-fat file: /usr/local/mysql/lib/libmysqlclient.dylib is architecture:
ppc

That looks to me like I should maybe reinstall MySQL with the proper
DMG?
& thanks for your help,
Doug.

Can you try the following command.

sudo env ARCHFLAGS=’-arch i386’ gem install mysql -v=2.7 –
–with-mysql-config=/usr/local/mysql/bin/mysql_config

Kem Mason wrote:

Frederick C. wrote:

On 7 Sep 2008, at 12:47, Doug L. wrote:

ld: warning in /usr/local/mysql/lib/libmysqlclient.dylib, file is
not of
required architecture

This appears to be the key bit: you’re asking for an i386 executable
but that library is apparently a different architecture (lipo -
detailed_info /usr/local/mysql/lib/libmysqlclient.dylib will tell you
what it is)

Fred

I did this, and my libmysqlclient.dylib was i386 – but I noticed the
compiler commands were:

gcc -I. -I.
-I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin9.0
-I. -DHAVE_MYSQL_H -I/usr/local/mysql/include -Os -arch i386
-fno-common -fno-common -arch ppc -arch i386 -Os -pipe -fno-common -c
mysql.c
cc -arch ppc -arch i386 -pipe -bundle -undefined dynamic_lookup -o
mysql.bundle mysql.o -L"."
-L"/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib" -L.
-arch ppc -arch i386 -lruby -L/usr/local/mysql/lib -lmysqlclient -lz
-lm -lpthread -ldl -lm
#output:
ld warning: in /usr/local/mysql/lib/libmysqlclient.dylib, file is not of
required architecture

I copy / pasted the commands stripping out all the ‘-arch ppc’
instances, and everything worked great for me after that.

Frederick C. wrote:

On 7 Sep 2008, at 12:47, Doug L. wrote:

ld: warning in /usr/local/mysql/lib/libmysqlclient.dylib, file is
not of
required architecture

This appears to be the key bit: you’re asking for an i386 executable
but that library is apparently a different architecture (lipo -
detailed_info /usr/local/mysql/lib/libmysqlclient.dylib will tell you
what it is)

Fred

I did this, and my libmysqlclient.dylib was i386 – but I noticed the
compiler commands were:

gcc -I. -I.
-I/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/universal-darwin9.0
-I. -DHAVE_MYSQL_H -I/usr/local/mysql/include -Os -arch i386
-fno-common -fno-common -arch ppc -arch i386 -Os -pipe -fno-common -c
mysql.c
cc -arch ppc -arch i386 -pipe -bundle -undefined dynamic_lookup -o
mysql.bundle mysql.o -L"."
-L"/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib" -L.
-arch ppc -arch i386 -lruby -L/usr/local/mysql/lib -lmysqlclient -lz
-lm -lpthread -ldl -lm
#output:
ld warning: in /usr/local/mysql/lib/libmysqlclient.dylib, file is not of
required architecture

I copy / pasted the commands stripping out all the ‘-arch ppc’
instances, and everything worked great for me after that.

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