First version with working meson builder configuration, with tests!

examples/meson.build

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+# -----nbody------ #
+
+nbody_files = files('nbody.f90')
+nbody_kernel_files = files('nbody.cl')
+
+nbody_obj = custom_target('nbody_kernel',
+  input: nbody_kernel_files,
+  output: 'nbody.cl.o',
+  command: [python_exe, script, '@INPUT@', '@OUTPUT@'])
+
+# -platform query- #
+
+platform_query_files = files('platform_query.f90')
+platform_query_kernel_files = files('platform_query.cl')
+
+platform_query_obj = custom_target('platform_query_kernel',
+  input: platform_query_kernel_files,
+  output: 'platform_query.cl.o',
+  command: [python_exe, script, '@INPUT@', '@OUTPUT@'])
+
+# ------sum------- #
+
+sum_files = files('sum.f90')
+sum_kernel_files = files('sum.cl')
+
+sum_obj = custom_target('sum_kernel',
+  input: sum_kernel_files,
+  output: 'sum.cl.o',
+  command: [python_exe, script, '@INPUT@', '@OUTPUT@'])

external/meson.build

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+externalSources = files(
+  'clfortran/clfortran.f90',
+  'fortran-utils/futils_sorting.f90',
+  'M_strings/M_strings.f90'
+  )

getCLBinary.py

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+import sys
+import shutil
+import os
+import random
+
+inputFile  = sys.argv[1]
+aux = 'fclKernels.cl'
+outputFile = sys.argv[2]
+
+actualFolder = os.getcwd()
+folder = '/tmp/' + str(random.randint(1,1e15))
+os.system(f'mkdir {folder}')
+shutil.copyfile(inputFile,folder + '/' + aux)
+os.chdir(folder)
+os.system(f'ld -r -b binary {aux} -o {actualFolder}/{outputFile}')
+os.chdir(actualFolder)
+os.system(f'rm -rf {folder}')

meson.build

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+project(
+  'Focal',
+  'fortran',
+  version: '1.0.1',
+  license: 'MIT License',
+  )
+
+subdir('external')
+subdir('src')
+
+opencl_dep = dependency('OpenCL', required: false)
+pkg = import('pkgconfig')
+
+# ---NonDebug Library--- #
+focalNonDebugFileList = sources + nonDebugFile + externalSources
+libFocal = static_library('Focal', focalNonDebugFileList,
+  fortran_args: ['-std=f2008', '-fimplicit-none'],
+  install: true
+)
+
+pkg.generate(libFocal)
+
+libFocal_dep = declare_dependency(link_with: libFocal,
+  dependencies: opencl_dep,)
+
+# ----Debug Library---- #
+focalDebugFileList = sources + debugFile + externalSources
+libFocalDbg = static_library('FocalDbg', focalDebugFileList,
+  fortran_args: ['-std=f2008', '-fimplicit-none']
+)
+
+libFocalDbg_dep = declare_dependency(link_with: libFocalDbg,
+  dependencies: opencl_dep)
+
+# ------Examples------ #
+python_exe = find_program('python')
+script = join_paths(meson.source_root(),'getCLBinary.py')
+subdir('examples')
+
+executable('nbody',[nbody_files,nbody_obj],
+  dependencies: libFocal_dep)
+executable('sum',[sum_files,sum_obj],
+  dependencies: libFocal_dep)
+executable('platform_query',[platform_query_files,platform_query_obj],
+  dependencies: libFocal_dep)
+
+# -------Tests-------#
+subdir('test')
+

src/meson.build

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+sources = files(
+  'Focal_Error.f90',
+  'Focal.f90',
+  'Focal_HostMemory.f90',
+  'Focal_Memory.f90',
+  'Focal_Profile.f90',
+  'Focal_Query.f90',
+  'Focal_Setup.f90',
+  'Focal_Utils.f90',
+  )
+
+debugFile = files('Focal_NoDebug.f90')
+nonDebugFile = files('Focal_Debug.f90')

test/meson.build

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+progs = [
+  #['testExample',['testExample.cl', 'testExample.f90']],
+  ['testEvents',['testEvents.cl', 'testEvents.f90']],
+  ['testFileSource',['testFileSource.cl', 'testFileSource.f90']],
+  ['testKernelSetup',['testKernelSetup.cl', 'testKernelSetup.f90']],
+  ['testLocalMem',['testLocalMem.cl', 'testLocalMem.f90']],
+  ['testMemoryTransfer',['testMemoryTransfer.cl', 'testMemoryTransfer.f90']],
+  ['testPinnedMemory',['testPinnedMemory.cl', 'testPinnedMemory.f90']],
+  ['testProfiling',['testProfiling.cl', 'testProfiling.f90']],
+  ['testQueuePool',['testQueuePool.cl', 'testQueuePool.f90']],
+  ['testSubBuffers',['testSubBuffers.cl', 'testSubBuffers.f90']]
+  ]
+
+moduleFocal_Test_Utils = files('Focal_Test_Utils.f90')
+
+foreach p : progs
+  openCL_obj = custom_target(p[0] + '_kernel',
+    input: p[1][0],
+    output: p[1][0] + '.o',
+    command: [python_exe, script, '@INPUT@', '@OUTPUT@'])
+
+  exe = executable(p[0],[openCL_obj, p[1][1], moduleFocal_Test_Utils],
+    dependencies: libFocal_dep)
+
+  test(p[0], exe)
+endforeach