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Diffstat (limited to 'src/patchage_config.h')
| -rw-r--r-- | src/patchage_config.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/src/patchage_config.h b/src/patchage_config.h new file mode 100644 index 0000000..6c4f09f --- /dev/null +++ b/src/patchage_config.h @@ -0,0 +1,112 @@ +// Copyright 2021-2023 David Robillard <d@drobilla.net> +// SPDX-License-Identifier: GPL-3.0-or-later + +/* + Configuration header that defines reasonable defaults at compile-time. + + This allows configuration from the command-line (usually by the build system) + while still allowing the code to compile "as-is" with reasonable default + features on supported platforms. + + This system is designed so that, ideally, no command-line or build-system + configuration is needed, but automatic feature detection can be disabled or + overridden for maximum control. It should never be necessary to edit the + source code to achieve a given configuration. + + Usage: + + - By default, features are enabled if they can be detected or assumed to be + available from the build environment, unless `PATCHAGE_NO_DEFAULT_CONFIG` + is defined, which disables everything by default. + + - If a symbol like `HAVE_SOMETHING` is defined to non-zero, then the + "something" feature is assumed to be available. + + Code rules: + + - To check for a feature, this header must be included, and the symbol + `USE_SOMETHING` used as a boolean in an `#if` expression. + + - None of the other configuration symbols described here may be used + directly. In particular, this header should be the only place in the + source code that touches `HAVE` symbols. +*/ + +#ifndef PATCHAGE_CONFIG_H +#define PATCHAGE_CONFIG_H + +// Define version unconditionally so a warning will catch a mismatch +#define PATCHAGE_VERSION "1.0.11" + +#if !defined(PATCHAGE_NO_DEFAULT_CONFIG) + +// Classic UNIX: dladdr() +# ifndef HAVE_DLADDR +# ifdef __has_include +# if __has_include(<dlfcn.h>) +# define HAVE_DLADDR 1 +# endif +# elif defined(__unix__) || defined(__APPLE__) +# define HAVE_DLADDR 1 +# endif +# endif + +// GNU gettext() +# ifndef HAVE_GETTEXT +# ifdef __has_include +# if __has_include(<libintl.h>) +# define HAVE_GETTEXT 1 +# endif +# endif +# endif + +// JACK metadata API +# ifndef HAVE_JACK_METADATA +# ifdef __has_include +# if __has_include(<jack/metadata.h>) +# define HAVE_JACK_METADATA 1 +# endif +# endif +# endif + +#endif // !defined(PATCHAGE_NO_DEFAULT_CONFIG) + +/* + Make corresponding USE_FEATURE defines based on the HAVE_FEATURE defines from + above or the command line. The code checks for these using #if (not #ifdef), + so there will be an undefined warning if it checks for an unknown feature, + and this header is always required by any code that checks for features, even + if the build system defines them all. +*/ + +#if defined(HAVE_DLADDR) && HAVE_DLADDR +# define USE_DLADDR 1 +#else +# define USE_DLADDR 0 +#endif + +#if defined(HAVE_GETTEXT) && HAVE_GETTEXT +# define USE_GETTEXT 1 +#else +# define USE_GETTEXT 0 +#endif + +#if defined(HAVE_JACK_METADATA) && HAVE_JACK_METADATA +# define USE_JACK_METADATA 1 +#else +# define USE_JACK_METADATA 0 +#endif + +#if !defined(PATCHAGE_USE_LIGHT_THEME) +# define PATCHAGE_USE_LIGHT_THEME 0 +#endif + +#ifndef PATCHAGE_BUNDLED +# ifdef __APPLE__ +# define PATCHAGE_BUNDLED 1 +# else +# define PATCHAGE_BUNDLED 0 +# endif +#endif + +#endif // PATCHAGE_CONFIG_H |