Implement user-selectable compiler warning switches

[nasa]

Implement user-selectable compiler warning switches

[skliper]

Imported from trac issue 37. Created by jphickey on 2015-04-17T14:18:14, last modified: 2015-11-20T16:22:16

[skliper]

Trac comment by jphickey on 2015-04-17 14:52:46:

Commit [changeset:f46224c] has been pushed for this

The extra flags are specified through a variable called "OSAL_USER_C_FLAGS". The value of this variable is set in one of two ways:

• Via an environment variable, e.g. {{{export OSAL_USER_C_FLAGS=-Werror}}}
• Via a "-D" option to the cmake commend, i.e. {{{-DOSAL_USER_C_FLAGS=-Werror}}}

In all cases, a CMake cache variable is utilized so that value will be retained from build to build, even if the original environment variable changes. This is important for building from an IDE that may have a different environment than the command shell.

Also, the {{{-Wall}}} build option is added to all builds.

[skliper]

Trac comment by glimes on 2015-05-18 20:04:56:

Accept.

[skliper]

Trac comment by sstrege on 2015-05-19 10:38:17:

What is the mechanism by which developers can easily add extra CFLAGS to a build using the old build system?

[skliper]

Trac comment by sstrege on 2015-06-29 16:53:27:

The answer to my question above is provided in the comments (through an environment variable).

[skliper]

Trac comment by sstrege on 2015-06-29 16:53:39:

Accept

[skliper]

Trac comment by glimes on 2015-06-30 11:02:42:

Recommend accept.

[skliper]

Trac comment by acudmore on 2015-06-30 12:40:43:

Recommend accept.

[skliper]

Trac comment by glimes on 2015-06-30 14:37:42:

CCB approved.