Set default value for deprecated option 'compile_library' (#296)

Author: jfsimoneau

README.md

@@ -314,6 +314,7 @@ UTF-8 decoding is performed using a state machine based on Bjoern Hoehrmann's '[
 -   **[@whiterabbit963](https://github.com/whiterabbit963)** - Fixed a bug with value_or conversions
 -   **[@ximion](https://github.com/ximion)** - Added support for installation with meson
 -   **[@rafal-c](https://github.com/rafal-c)** - Added a formatting flag
+-   **[@jfsimoneau](https://github.com/jfsimoneau)** - Fixed a meson option
 <br>
 
 ## Contact

meson_options.txt

@@ -11,5 +11,5 @@ option('unreleased_features',	type: 'boolean', value: false,	description: 'Enabl
 option('generate_cmake_config',	type: 'boolean', value: true,	description: 'Generate a cmake package config file (default: true - no effect when included as a subproject)')
 option('use_vendored_libs',		type: 'boolean', value: true,	description: 'Use the libs from the vendor dir when building tests.')
 
-option('compile_library',		type: 'boolean', deprecated: true)
+option('compile_library',		type: 'boolean', value: false,  deprecated: 'build_lib')
 option('float16',				type: 'boolean', deprecated: true)