Hello Mirek,

thanks for the reply.
I already tried to remove the PLATFORM_POSIX but no success.

This is the full error message:

/Users/mac/upp.src/uppsrc/mysql/mysql.h (18): warning: non-portable path to file '<MySql/MySql.h>'; specified path differs in case from file name on disk [-Wnonportable-include-path]
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (1): In file included from /Users/mac/upp.src/uppsrc/MySql/MySql.cpp:1:
(): #include <mysql/mysql.h>
(): <MySql/MySql.h>
/Users/mac/upp.src/uppsrc/mysql/mysql.h (46): error: unknown type name 'MYSQL'
/Users/mac/upp.src/uppsrc/mysql/mysql.h (75): error: unknown type name 'MYSQL'
/Users/mac/upp.src/uppsrc/mysql/mysql.h (68): error: use of undeclared identifier 'MYSQL_PORT'
/Users/mac/upp.src/uppsrc/mysql/mysql.h (84): error: cannot initialize object parameter of type 'Upp::SqlSession' with an expression of type 'Upp::MySqlSession'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (24): error: unknown type name 'MYSQL'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (26): error: unknown type name 'MYSQL_RES'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (27): error: unknown type name 'MYSQL_ROW'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (39): error: unknown type name 'MYSQL'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (50): error: use of undeclared identifier 'mysql_library_init'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (54): error: use of undeclared identifier 'mysql_library_end'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (59): error: expected expression
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (59): error: use of undeclared identifier 'MYSQL'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (64): error: no matching constructor for initialization of 'Upp::Sql'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (103): error: use of undeclared identifier 'MYSQL_PORT'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (142): error: cannot initialize object parameter of type 'Upp::SqlSession' with an expression of type 'Upp::MySqlSession'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (172): error: out-of-line definition of 'Begin' does not match any declaration in 'Upp::MySqlSession'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (216): error: no matching constructor for initialization of 'Upp::Sql'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (225): error: no matching constructor for initialization of 'Upp::Sql'
/Users/mac/upp.src/uppsrc/MySql/MySql.cpp (234): error: no matching constructor for initialization of 'Upp::Sql'

You get the same if you try to compile the mysql package test case coming with U++.

Googling on internet I did several things (there is no unanimous agreement)

1) upgrade brew

brew update --verbose

it may takes some minute to upgrade everything (at least on my Mac mini)

2) installed several libraries, one by one because each of them didn't work

brew install mysql-connector-cc
brew install mysql-connector-c
brew install mysql-client

At the end I had a MYSQL folder in
/usr/local/Cellar/mysql
/usr/local/Cellar/mysql-client
/usr/local/Cellar/mysql-connector-c++
/usr/local/opt/mysql

each one with their include and lib folder.
I tried to point theide in all includes but with no luck.
I hope this info can be useful.

thanks,
Luigi

I think that clang cannot find the right include and for that reason replaces it with a wrong one.

What are your include paths in the build method? I bet it will be one level off. Include paths must at some point pick mysql/mysql.h from the client library you have installed.

Mirek

mirek wrote on Thu, 23 January 2020 18:31

I think that clang cannot find the right include and for that reason replaces it with a wrong one.

What are your include paths in the build method? I bet it will be one level off. Include paths must at some point pick mysql/mysql.h from the client library you have installed.

Mirek

I thought the same and tried several time. I tried once more at several folder level to help clang to locate the mysql.h. Here is my include

The marked row is where I see a mysql.h file. In both opt and cellar seems to be the same files.

Luigi

IMO should be /usr/local/opt/mysql/include

(The include is <mysql/mysql.h> so the include path must be relative to it)

Mirek

This was tricky one.

The problem is that CLANG treats include files case insensitive. Thus <mysql/mysql.h> in fact included the package's MySql.h recursively...

I have fixed it by redoing the code to:

#ifdef PLATFORM_POSIX
#ifdef PLATFORM_OSX
#include <mysql.h>
#else
#include <mysql/mysql.h>
#endif
#endif

so with MacOS you will need to point to inside that mysql folder. Not nice, but for now it will do.

Mirek

It was a problem in MySql package, missing OSX libraries requirement...

Fixed in trunk.