Recent changes to Adding flags

Adding flags modified by Jussi Pakkanen

Jussi Pakkanen — Thu, 04 Sep 2014 07:57:38 -0000

--- v3
+++ v4
@@ -1,3 +1,10 @@
+The Meson build system has moved
+==
+
+The new home of Meson's documentation is [here](https://github.com/jpakkane/meson/wiki). The information below is preserved only for posterity. It should be considered out of date.
+
+-------
+
 Adding compiler flags
 ==

Adding flags modified by Jussi Pakkanen

Jussi Pakkanen — Sun, 02 Jun 2013 19:35:13 -0000

--- v2
+++ v3
@@ -21,7 +21,7 @@

 Per target flags are just as simple to define.

-    executable('prog', 'prog.cc', cxx_args : '-DCXXTHING')
+    executable('prog', 'prog.cc', cpp_args : '-DCPPTHING')

 Here we create a C++ executable with an extra preprocessor definition.

Adding flags modified by Jussi Pakkanen

Jussi Pakkanen — Sun, 02 Jun 2013 10:25:32 -0000

--- v1
+++ v2
@@ -8,7 +8,7 @@

 Global compiler flags are set with the following command.

-add_global_arguments('-std=c99', language : 'c')
+    add_global_arguments('-std=c99', language : 'c')

 This sets the flag that controls the C language standard used.

@@ -21,7 +21,7 @@

 Per target flags are just as simple to define.

-executable('prog', 'prog.cc', cxx_args : '-DCXXTHING')
+    executable('prog', 'prog.cc', cxx_args : '-DCXXTHING')

 Here we create a C++ executable with an extra preprocessor definition.

WikiPage Adding flags modified by Jussi Pakkanen

Jussi Pakkanen — Thu, 28 Feb 2013 22:36:45 -0000

Adding compiler flags

Often you need to specify extra compiler flags. Meson provides two different ways to achieve this: global flags and per-target flags.

Global flags

Global compiler flags are set with the following command.

add_global_arguments('-std=c99', language : 'c')

This sets the flag that controls the C language standard used.

Global arguments have certain limitations. They all have to be defined before any build targets are specified. This ensures that the global flags are the same for every single source file built in the entire project. For this reason you should set only the most essential flags with this setting.

You should not set debug or optimization flags with this function. Instead they should be specified with the build type feature.

Per target flags

Per target flags are just as simple to define.

executable('prog', 'prog.cc', cxx_args : '-DCXXTHING')

Here we create a C++ executable with an extra preprocessor definition.

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