Re: Problems to include mysql.h in the Makefile

[Benoit SIGOURE]

On Jul 17, 2007, at 8:22 PM, Damian Montaldo wrote:

> Hi, i'm having some problems to include mysql.h when i compile C  
> source code.

Hello Damian,

> I'm using this macro
> http://autoconf-archive.cryp.to/ax_lib_mysql.html
> to find the path to mysql.h in a Debian Linux and work fine.
>
> $ ./configure
> ...
> checking for mysql_config... /usr/bin/mysql_config
> checking for MySQL libraries... yes
> ...
>
> When i run configure it generates this line in the Makefile file:
>
> MYSQL_CFLAGS = -I/usr/include/mysql -DBIG_JOINS=1
> MYSQL_CONFIG = /usr/bin/mysql_config
> MYSQL_LDFLAGS = -L/usr/lib/mysql -lmysqlclient
> MYSQL_VERSION = 5.0.32
> [...]
> But when i run make it doesn't include the MYSQL_CFLAGS so it's
> imposible to resolve this #include <mysql.h>

This macro provides you with the flags required to use MySQL in your  
builds but it does not actually enforce them.  And this is a sane  
behavior.  So now, you simply need to use these flags whenever you  
need them, eg:

bin_PROGRAMS = mysqlcli
mysqlcli_SOURCES = ...
mysqlcli_CFLAGS = $(MYSQL_CFLAGS) $(AM_CFLAGS)
(don't forget to add the AM_*flags in the target-specific_*FLAGS)

Or simply...

bin_PROGRAMS = mysqlcli
mysqlcli_SOURCES = ...
AM_CFLAGS = $(MYSQL_CFLAGS)

... if you don't already use AM_CFLAGS and all the targets of this  
Makefile.am must use $(MYSQL_CFLAGS).  If you already use AM_CFLAGS,  
then simply use `+=' instead of `='.

Cheers,

--
Benoit Sigoure aka Tsuna
EPITA Research and Development Laboratory

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