On 17.10.2017 21:21, Dylan Baker wrote:
+<dt><code>CC, CFLAGS, CXX, CXXFLAGS</code></dt> +<dd><p>These environment variables +control the C and C++ compilers used during the build. The default compilers +depends on your operating system. Meson supports GCC, Clang, and MSVC as first +class compilers. There is some support for the Intel ICC compiler. No other +C/C++ compilers are currently supported. +</dd> + +<dt><code>PKG_CONFIG_PATH</code></dt> +<dd><p>The +<code>pkg-config</code> utility is a hard requirement for configuring and +building mesa. It is used to search for external libraries +on the system. This environment variable is used to control the search +path for <code>pkg-config</code>. For instance, setting +<code>PKG_CONFIG_PATH=/usr/X11R6/lib/pkgconfig</code> will search for +package metadata in <code>/usr/X11R6</code> before the standard +directories.</p> +</dd> +</dl>
Not knowing Meson, how do environment variables like CFLAGS, CC, etc. work? Are they "latched" when calling `meson $builddir`? When calling `meson configure`? Both? Does setting them have an effect when calling `ninja`?
Some examples would be helpful. Thanks, Nicolai
+ +<p> +One of the oddities of meson is that some options are different when passed to +the initial meson step than to meson configure. These options are passed as +--option=foo to meson, but -Doption=foo to meson configure. Project defined +options are always passed as -Doption=foo. +<p> + +<p>For those coming from autotools be aware of the following:</p> + +<dl> +<dt><code>--buildtype/-Dbuildtype</code></dt> +<dd><p>This option will set the compiler debug/optimisation levels (if the user +hasn't already set them via the CFLAGS/CXXFLAGS) and macros to aid in +debugging the Mesa libraries.</p> + +<p>Note that in meson this defaults to "debug", and not setting it to +"release" will yield non-optimal performance and binary size</p> _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
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