Switch to meson build system

1 files changed, 169 insertions, 0 deletions

diff --git a/src/jalv_config.h b/src/jalv_config.h
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+++ b/src/jalv_config.h
@@ -0,0 +1,169 @@
+// Copyright 2021-2022 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: ISC
+
+/*
+  Configuration header that defines reasonable defaults at compile time.
+
+  This allows compile-time configuration from the command line, while still
+  allowing the source to be built "as-is" without any configuration.  The idea
+  is to support an advanced build system with configuration checks, while still
+  allowing the code to be simply "thrown at a compiler" with features
+  determined from the compiler or system headers.  Everything can be
+  overridden, so it should never be necessary to edit this file to build
+  successfully.
+
+  To ensure that all configure checks are performed, the build system can
+  define JALV_NO_DEFAULT_CONFIG to disable defaults.  In this case, it must
+  define all HAVE_FEATURE symbols below to 1 or 0 to enable or disable
+  features.  Any missing definitions will generate a compiler warning.
+
+  To ensure that this header is always included properly, all code that uses
+  configuration variables includes this header and checks their value with #if
+  (not #ifdef).  Variables like USE_FEATURE are internal and should never be
+  defined on the command line.
+*/
+
+#ifndef JALV_CONFIG_H
+#define JALV_CONFIG_H
+
+// Define version unconditionally so a warning will catch a mismatch
+#define JALV_VERSION "1.6.7"
+
+#if !defined(JALV_NO_DEFAULT_CONFIG)
+
+// We need unistd.h to check _POSIX_VERSION
+#  ifndef JALV_NO_POSIX
+#    ifdef __has_include
+#      if __has_include(<unistd.h>)
+#        include <unistd.h>
+#      endif
+#    elif defined(__unix__)
+#      include <unistd.h>
+#    endif
+#  endif
+
+// POSIX.1-2001: fileno()
+#  ifndef HAVE_FILENO
+#    if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L
+#      define HAVE_FILENO
+#    endif
+#  endif
+
+// POSIX.1-2001: isatty()
+#  ifndef HAVE_ISATTY
+#    if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L
+#      define HAVE_ISATTY
+#    endif
+#  endif
+
+// POSIX.1-2001: mlock()
+#  ifndef HAVE_MLOCK
+#    if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L
+#      define HAVE_MLOCK 1
+#    else
+#      define HAVE_MLOCK 0
+#    endif
+#  endif
+
+// POSIX.1-2001: posix_memalign()
+#  ifndef HAVE_POSIX_MEMALIGN
+#    if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L
+#      define HAVE_POSIX_MEMALIGN 1
+#    else
+#      define HAVE_POSIX_MEMALIGN 0
+#    endif
+#  endif
+
+// POSIX.1-2001: sigaction()
+#  ifndef HAVE_SIGACTION
+#    if defined(_POSIX_VERSION) && _POSIX_VERSION >= 200112L
+#      define HAVE_SIGACTION
+#    endif
+#  endif
+
+// Suil
+#  ifndef HAVE_SUIL
+#    ifdef __has_include
+#      if __has_include("suil/suil.h")
+#        define HAVE_SUIL
+#      endif
+#    endif
+#  endif
+
+// JACK metadata API
+#  ifndef HAVE_JACK_METADATA
+#    ifdef __has_include
+#      if __has_include("jack/metadata.h")
+#        define HAVE_JACK_METADATA
+#      endif
+#    endif
+#  endif
+
+// JACK jack_port_type_get_buffer_size() function
+#  ifndef HAVE_JACK_PORT_TYPE_GET_BUFFER_SIZE
+#    ifdef __has_include
+#      if __has_include("jack/midiport.h")
+#        define HAVE_JACK_PORT_TYPE_GET_BUFFER_SIZE
+#      endif
+#    endif
+#  endif
+
+#endif // !defined(JALV_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 HAVE_FILENO
+#  define USE_FILENO 1
+#else
+#  define USE_FILENO 0
+#endif
+
+#if HAVE_ISATTY
+#  define USE_ISATTY 1
+#else
+#  define USE_ISATTY 0
+#endif
+
+#if HAVE_MLOCK
+#  define USE_MLOCK 1
+#else
+#  define USE_MLOCK 0
+#endif
+
+#if HAVE_POSIX_MEMALIGN
+#  define USE_POSIX_MEMALIGN 1
+#else
+#  define USE_POSIX_MEMALIGN 0
+#endif
+
+#if HAVE_SIGACTION
+#  define USE_SIGACTION 1
+#else
+#  define USE_SIGACTION 0
+#endif
+
+#if HAVE_SUIL
+#  define USE_SUIL 1
+#else
+#  define USE_SUIL 0
+#endif
+
+#if HAVE_JACK_METADATA
+#  define USE_JACK_METADATA 1
+#else
+#  define USE_JACK_METADATA 0
+#endif
+
+#if HAVE_JACK_PORT_TYPE_GET_BUFFER_SIZE
+#  define USE_JACK_PORT_TYPE_GET_BUFFER_SIZE 1
+#else
+#  define USE_JACK_PORT_TYPE_GET_BUFFER_SIZE 0
+#endif
+
+#endif // JALV_CONFIG_H