MAMP and the Ruby MySQL Gem

I followed your instructions.

When I do:

$ rake db:migrate

I get:

rake aborted!
uninitialized constant MysqlCompat::MysqlRes

I tried the symbolic link solution and that didn't work.

So I tried this:

sudo gem install mysql -v 2.7 -- --with-mysql-config=/Applications/MAMP/Library/bin/mysql_config --mysql_dir=/Applications/MAMP/Library/lib/mysql

And I get this:

checking for mysql_ssl_set()... yes
checking for mysql.h... yes
creating Makefile

make
gcc -I. -I/usr/local/include/ruby-1.9.1/i386-darwin10.2.0 -I/usr/local/include/ruby-1.9.1/ruby/backward -I/usr/local/include/ruby-1.9.1 -I. -DHAVE_MYSQL_SSL_SET -DHAVE_MYSQL_H -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I/Applications/MAMP/Library/include/mysql -fno-common -D_XOPEN_SOURCE=1 -O2 -g -Wall -Wno-parentheses -fno-common -pipe -fno-common -o mysql.o -c mysql.c
mysql.c:6:21: error: version.h: No such file or directory
mysql.c: In function ‘make_field_obj’:
mysql.c:185: warning: unused variable ‘hash’
mysql.c: In function ‘escape_string’:
mysql.c:267: error: ‘struct RString’ has no member named ‘len’
mysql.c:268: error: ‘struct RString’ has no member named ‘len’
mysql.c:268: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:268: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:268: error: ‘struct RString’ has no member named ‘len’
mysql.c: In function ‘real_escape_string’:
mysql.c:401: error: ‘struct RString’ has no member named ‘len’
mysql.c:402: error: ‘struct RString’ has no member named ‘len’
mysql.c:402: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:402: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:402: error: ‘struct RString’ has no member named ‘len’
mysql.c: In function ‘query’:
mysql.c:710: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:710: error: ‘struct RString’ has no member named ‘len’
mysql.c:729: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:729: error: ‘struct RString’ has no member named ‘len’
mysql.c: In function ‘query_with_result_set’:
mysql.c:882: warning: implicit declaration of function ‘TypeError’
mysql.c: In function ‘fetch_field_direct’:
mysql.c:960: warning: implicit declaration of function ‘Raise’
mysql.c: In function ‘fetch_hash2’:
mysql.c:1032: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:1033: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:1033: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:1033: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:1033: error: ‘struct RString’ has no member named ‘ptr’
mysql.c: In function ‘field_inspect’:
mysql.c:1157: error: ‘struct RString’ has no member named ‘len’
mysql.c:1158: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:1158: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:1158: error: ‘struct RString’ has no member named ‘ptr’
mysql.c: In function ‘stmt_bind_result’:
mysql.c:1284: error: ‘struct RString’ has no member named ‘ptr’
mysql.c: In function ‘stmt_execute’:
mysql.c:1346: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:1347: error: ‘struct RString’ has no member named ‘len’
mysql.c:1348: error: ‘struct RString’ has no member named ‘len’
mysql.c:1359: error: ‘struct RArray’ has no member named ‘ptr’
mysql.c:1360: error: ‘struct RArray’ has no member named ‘ptr’
mysql.c:1361: error: ‘struct RArray’ has no member named ‘ptr’
mysql.c:1362: error: ‘struct RArray’ has no member named ‘ptr’
mysql.c:1363: error: ‘struct RArray’ has no member named ‘ptr’
mysql.c:1364: error: ‘struct RArray’ has no member named ‘ptr’
mysql.c:1316: warning: unused variable ‘false’
mysql.c: In function ‘stmt_prepare’:
mysql.c:1584: error: ‘struct RString’ has no member named ‘ptr’
mysql.c:1584: error: ‘struct RString’ has no member named ‘len’
make: *** [mysql.o] Error 1


Gem files will remain installed in /usr/local/lib/ruby/gems/1.9.1/gems/mysql-2.7 for inspection.
Results logged to /usr/local/lib/ruby/gems/1.9.1/gems/mysql-2.7/gem_make.out