From e429b4c52611042f058c63626845501fecbc2b80 Mon Sep 17 00:00:00 2001
From: Jon Ringle <jringle@gridpoint.com>
Date: Tue, 8 Nov 2022 00:54:33 -0500
Subject: [PATCH] meson build: Add support for meson build

---
 meson.build       | 66 +++++++++++++++++++++++++++++++++++++++++++++++
 src/meson.build   | 29 +++++++++++++++++++++
 tests/meson.build | 50 +++++++++++++++++++++++++++++++++++
 3 files changed, 145 insertions(+)
 create mode 100644 meson.build
 create mode 100644 src/meson.build
 create mode 100644 tests/meson.build

diff --git a/meson.build b/meson.build
new file mode 100644
index 000000000..681657f6b
--- /dev/null
+++ b/meson.build
@@ -0,0 +1,66 @@
+project('libmodbus', 'c', version : '3.1.8')
+
+libmodbus_version = meson.project_version()
+ver_arr = libmodbus_version.split('.')
+
+libmodbus_version_major = ver_arr[0]
+libmodbus_version_minor = ver_arr[1]
+libmodbus_version_micro = ver_arr[2]
+
+ver_conf = configuration_data()
+ver_conf.set('LIBMODBUS_VERSION', libmodbus_version)
+ver_conf.set('LIBMODBUS_VERSION_MAJOR', libmodbus_version_major)
+ver_conf.set('LIBMODBUS_VERSION_MINOR', libmodbus_version_minor)
+ver_conf.set('LIBMODBUS_VERSION_MICRO', libmodbus_version_micro)
+
+cc = meson.get_compiler('c')
+cdata = configuration_data()
+check_headers = [
+  'arpa/inet.h',
+  'byteswap.h',
+  'errno.h',
+  'fcntl.h',
+  'inttypes.h',
+  'limits.h',
+  'linux/serial.h',
+  'netdb.h',
+  'netinet/in.h',
+  'netinet/tcp.h',
+  'stdint.h',
+  'sys/ioctl.h',
+  'sys/params.h',
+  'sys/socket.h',
+  'sys/time.h',
+  'sys/types.h',
+  'termios.h',
+  'time.h',
+  'unistd.h',
+]
+
+foreach h : check_headers
+  if cc.has_header(h)
+    cdata.set('HAVE_' + h.underscorify().to_upper(), 1)
+  endif
+endforeach
+
+check_functions = [
+  ['HAVE_ACCEPT4', 'accept4', '#include<sys/socket.h>'],
+  ['HAVE_GETADDRINFO', 'getaddrinfo', '#include<netdb.h>'],
+  ['HAVE_GETTIMEOFDAY', 'gettimeofday', '#include<sys/time.h>'],
+  ['HAVE_SELECT', 'select', '#include<sys/select.h>'],
+  ['HAVE_SOCKET', 'socket', '#include<sys/socket.h>'],
+  ['HAVE_STRERROR', 'strerror', '#include<string.h>'],
+  ['HAVE_STRLCPY', 'strlcpy', '#include<string.h>'],
+]
+
+foreach f : check_functions
+  if cc.has_function(f.get(1), prefix : f.get(2))
+    cdata.set(f.get(0), 1)
+  endif
+endforeach
+
+configure_file(output : 'config.h',
+               configuration : cdata)
+
+subdir('src')
+subdir('tests')
diff --git a/src/meson.build b/src/meson.build
new file mode 100644
index 000000000..984f1e6c2
--- /dev/null
+++ b/src/meson.build
@@ -0,0 +1,29 @@
+modbus_version_h = configure_file(input : 'modbus-version.h.in',
+                                  output : 'modbus-version.h',
+                                  configuration : ver_conf)
+
+sources = files([
+    'modbus.c',
+    'modbus-data.c',
+    'modbus-rtu.c',
+    'modbus-tcp.c',
+])
+
+headers = [
+    'modbus.h',
+    modbus_version_h,
+    'modbus-rtu.h',
+    'modbus-tcp.h',
+]
+install_headers(headers, subdir : 'modbus')
+
+lt_current = 6
+lt_revision = 0
+lt_age = 1
+lt_version = '@0@.@1@.@2@'.format(lt_current, lt_age, lt_revision)
+
+modbuslib = library('modbus', sources,
+                    version: lt_version,
+                    soversion: lt_current,
+                    include_directories : include_directories('..'),
+                    install : true)
diff --git a/tests/meson.build b/tests/meson.build
new file mode 100644
index 000000000..fb30f49ed
--- /dev/null
+++ b/tests/meson.build
@@ -0,0 +1,50 @@
+configure_file(input : 'unit-test.h.in',
+               output : 'unit-test.h',
+               configuration : cdata)
+
+incdir = include_directories('../src')
+
+bandwidth_server_one = executable(
+    'bandwidth-server-one', 'bandwidth-server-one.c',
+    link_with : modbuslib,
+    include_directories : incdir
+)
+
+bandwidth_server_many_up = executable(
+    'bandwidth-server-many-up', 'bandwidth-server-many-up.c',
+    link_with : modbuslib,
+    include_directories : incdir
+)
+
+bandwidth_client = executable(
+    'bandwidth-client', 'bandwidth-client.c',
+    link_with : modbuslib,
+    include_directories : incdir
+)
+
+random_test_server = executable(
+    'random-test-server', 'random-test-server.c',
+    link_with : modbuslib,
+    include_directories : incdir
+)
+
+random_test_client = executable(
+    'random-test-client', 'random-test-client.c',
+    link_with : modbuslib,
+    include_directories : incdir
+)
+
+unit_test_server = executable(
+    'unit-test-server', 'unit-test-server.c',
+    link_with : modbuslib,
+    include_directories : incdir
+)
+
+unit_test_client = executable(
+    'unit-test-client', 'unit-test-client.c',
+    link_with : modbuslib,
+    include_directories : incdir
+)
+
+test('unit-tests', find_program('unit-tests.sh'),
+     workdir : meson.current_build_dir())