Package RMySQL build failure report

Build errors
ERROR: configuration failed for package 'RMySQL'
Build output
* checking for file 'RMySQL/DESCRIPTION' ... OK
* preparing 'RMySQL':
* checking DESCRIPTION meta-information ... OK
* cleaning src
* checking whether 'INDEX' is up-to-date ... NO
* use '--force' to overwrite the existing 'INDEX'
* removing junk files
* checking for LF line-endings in source files
* checking for empty directories
* building binary distribution
* Installing *source* package 'RMySQL' ...
creating cache ./config.cache
checking how to run the C preprocessor... cc -E
checking for compress in -lz... yes
checking for getopt_long in -lc... yes
checking for mysql_init in -lmysqlclient... no
checking for mysql.h... no
checking for mysql_init in -lmysqlclient... no
checking for mysql_init in -lmysqlclient... no
checking for mysql_init in -lmysqlclient... no
checking for mysql_init in -lmysqlclient... no
checking for mysql_init in -lmysqlclient... no
checking for /usr/local/include/mysql/mysql.h... no
checking for /usr/include/mysql/mysql.h... yes

Configuration error:
could not find the MySQL installation include and/or library
directories. Manually specify the location of the MySQL
libraries and the header files and re-run R CMD INSTALL.

INSTRUCTIONS:

1. Define and export the 2 shell variables PKG_CPPFLAGS and
PKG_LIBS to include the directory for header files (*.h)
and libraries, for example (using Bourne shell syntax):

export PKG_CPPFLAGS="-I<MySQL-include-dir>"
export PKG_LIBS="-L<MySQL-lib-dir> -lmysqlclient"

Re-run the R INSTALL command:

R CMD INSTALL RMySQL_<version>.tar.gz

2. Alternatively, you may pass the configure arguments
--with-mysql-dir=<base-dir> (distribution directory)
or
--with-mysql-inc=<base-inc> (where MySQL header files reside)
--with-mysql-lib=<base-lib> (where MySQL libraries reside)
in the call to R INSTALL --configure-args='...'

R CMD INSTALL --configure-args='--with-mysql-dir=DIR' RMySQL_<version>.tar.gz

** Removing '/private/tmp/Rinst.25521/RMySQL'
ERROR
* installation failed