some error build in centos7

[JZFamily]

Environment

• nanodbc version:
  current
• DBMS name/version:
  mysql
• ODBC connection string:
• OS and Compiler:
  centos7 gcc4.8.5
• CMake settings:
  use unicode

Actual behavior

1,there are some erorrs. the function SQLColAttribute should be NANODBC_FUNC(SQLColAttribute)

Expected behavior

Minimal Working Example

My english is pool.我的英语很烂， 您能明白大概的意思吗？

[mloskot]

nanodbc version: current

Specifying it as 'current' does not mean much. Is it current master branch or current release version?

AFAICT, SQLColAttribute is wrapped with the macro in the current master branch.

nanodbc/nanodbc/nanodbc.cpp

Lines 2529 to 2531 in e99606b

	NANODBC_CALL_RC(
	SQLColAttribute,
	rc,

Please, use the current master branch, it's received numerous fixes and improvements and it is far ahead from the latest release, it can be considered stable (in fact, it could be released today and it won't be more stable than it is).