build: Always allow switching log level at runtime

There are no parts of libfprint that are so resource intensive that we'd
want to disable logging. This avoids (hopefully rare) cases where
compiled versions of libfprint are distributed with logging completely
disabled, and thus can't be debugged.

libfprint/fp_internal.h

@@ -48,11 +48,7 @@ void fpi_log(enum fpi_log_level, const char *component, const char *function,
 #define FP_COMPONENT NULL
 #endif
 
-#ifdef ENABLE_LOGGING
 #define _fpi_log(level, fmt...) fpi_log(level, FP_COMPONENT, __FUNCTION__, fmt)
-#else
-#define _fpi_log(level, fmt...)
-#endif
 
 #ifdef ENABLE_DEBUG_LOGGING
 #define fp_dbg(fmt...) _fpi_log(FPRINT_LOG_LEVEL_DEBUG, fmt)

meson.build

@@ -91,9 +91,6 @@ if get_option('x11-examples')
 endif
 
 # Message logging
-if get_option('log')
-    libfprint_conf.set('ENABLE_LOGGING', '1')
-endif
 if get_option('debug_log')
     libfprint_conf.set('ENABLE_DEBUG_LOGGING', '1')
 endif

meson_options.txt

@@ -14,10 +14,6 @@ option('x11-examples',
        description: 'Whether to build X11 example applications',
        type: 'boolean',
        value: true)
-option('log',
-       description: 'Message logging',
-       type: 'boolean',
-       value: true)
 option('debug_log',
        description: 'Debug message logging',
        type: 'boolean',