project('libdng', 'c',
    version: '0.1.1',
    license: 'MIT',
    default_options: ['c_std=c11'],
)

libtiff = dependency('libtiff-4')

# We use libtool-version numbers because it's easier to understand.
# Before making a release, the libdng_so_*
# numbers should be modified. The components are of the form C:R:A.
# a) If binary compatibility has been broken (eg removed or changed interfaces)
#    change to C+1:0:0.
# b) If interfaces have been changed or added, but binary compatibility has
#    been preserved, change to C+1:0:A+1
# c) If the interface is the same as the previous version, change to C:R+1:A
libdng_lt_c=1
libdng_lt_r=0
libdng_lt_a=0

libdng_so_version = '@0@.@1@.@2@'.format((libdng_lt_c - libdng_lt_a),
                                              libdng_lt_a,
                                              libdng_lt_r)

inc = include_directories('include')
install_headers('include/libdng.h')

lib_src = [
    'src/libdng.c',
    'src/dng.h',
    'src/mode.c',
    'src/mode.h',
    'src/dcp.c',
    'src/repack.c',
    'src/repack.h',
]

add_project_arguments(['-Wno-multichar'], language: 'c')
add_project_arguments('-D_GNU_SOURCE', language: 'c')

libdng = shared_library('dng', lib_src,
    version: libdng_so_version,
    include_directories: inc,
    dependencies: libtiff,
    install: true
)

pkg_mod = import('pkgconfig')
pkg_mod.generate(libraries: libdng,
                version: libdng_so_version,
                name: 'libdng',
                filebase: 'libdng',
                description: 'The wrapper library to generate DNG files with libtiff')

makedng = executable('makedng', 'util/makedng.c',
    link_with: libdng,
    include_directories: inc,
    install: true,
)

test_dng_validate = find_program('tests/test_dng_validate.sh')
dng_validate = find_program('dng_validate', required: false)
if dng_validate.found()
    test('dng_validate', test_dng_validate,
        args: [makedng.full_path()],
        suite: 'adobe',
    )
endif

subdir('tests')

scdoc = dependency('scdoc', required: get_option('man-pages'), version: '>= 1.9.7', native: true)
if scdoc.found()
    man_pages = ['man/makedng.1.scd']
    foreach src : man_pages
		topic = src.split('/')[1].split('.')[0]
		section = src.split('.')[1]
		output = topic + '.' + section

		custom_target(
			output,
			input: files(src),
			output: output,
			command: [
				'sh', '-c', '@0@ < @INPUT@ > @1@'.format(scdoc.get_variable(pkgconfig: 'scdoc'), output)
			],
			install: true,
			install_dir: join_paths(get_option('mandir'), 'man' + section),
		)    endforeach
endif