add prefer_static built-in option

By default, meson will try to look for shared libraries first before
static ones. In the meson.build itself, one can use the static keyword
to control if a static library will be tried first but there's no simple
way for an end user performing a build to switch back and forth at will.
Let's cover this usecase by adding an option that allows a user to
specify if they want dependency lookups to try static or shared
libraries first. The writer of the meson.build can manually specify the
static keyword where appropriate which will override the value of this
option.

1 files changed, 4 insertions, 0 deletions

diff --git a/mesonbuild/interpreter/compiler.py b/mesonbuild/interpreter/compiler.py
index 185d151..c5db6aa 100644
--- a/mesonbuild/interpreter/compiler.py
+++ b/mesonbuild/interpreter/compiler.py
@@ -17,6 +17,7 @@ from ..interpreterbase import (ObjectHolder, noPosargs, noKwargs,
                                FeatureNew, disablerIfNotFound,
                                InterpreterException)
 from ..interpreterbase.decorators import ContainerTypeInfo, typed_kwargs, KwargInfo, typed_pos_args
+from ..mesonlib import OptionKey
 from .interpreterobjects import (extract_required_kwarg, extract_search_dirs)
 from .type_checking import REQUIRED_KW, in_set_validator, NoneType
 
@@ -592,10 +593,13 @@ class CompilerHolder(ObjectHolder['Compiler']):
 
         search_dirs = extract_search_dirs(kwargs)
 
+        prefer_static = self.environment.coredata.get_option(OptionKey('prefer_static'))
         if kwargs['static'] is True:
             libtype = mesonlib.LibType.STATIC
         elif kwargs['static'] is False:
             libtype = mesonlib.LibType.SHARED
+        elif prefer_static:
+            libtype = mesonlib.LibType.PREFER_STATIC
         else:
             libtype = mesonlib.LibType.PREFER_SHARED
         linkargs = self.compiler.find_library(libname, self.environment, search_dirs, libtype)