meson: generalize finding to not hard error but disaber(). add windows msys2 defaults

Author: scivision

.github/workflows/ci.yml renamed to .github/workflows/ci_linux.yml

@@ -1,4 +1,4 @@
-name: ci
+name: ci_linux
 
 on: [push, pull_request]
 

README.md

@@ -1,6 +1,6 @@
 [![DOI](https://zenodo.org/badge/128736984.svg)](https://zenodo.org/badge/latestdoi/128736984)
 
-[![Actions Status](https://github.com/scivision/oo_hdf5_fortran/workflows/ci/badge.svg)](https://github.com/scivision/oo_hdf5_fortran/actions)
+[![Actions Status](https://github.com/scivision/oo_hdf5_fortran/workflows/ci_linux/badge.svg)](https://github.com/scivision/oo_hdf5_fortran/actions)
 [![Actions Status](https://github.com/scivision/oo_hdf5_fortran/workflows/ci_mac/badge.svg)](https://github.com/scivision/oo_hdf5_fortran/actions)
 
 # Object-oriented Fortran 2018 HDF5 interface
@@ -54,11 +54,6 @@ If HDF5 isn't found, you may need to specify on the command line:
 * `-Dh5libdir`: HDF5 library directory
 * `-Dh5incdir`: HDF5 include directory
 
-For MSYS2 this might be like:
-
-```posh
-meson build -Dh5libdir=c:/msys64/mingw64/lib -Dh5incdir=c:/msys64/mingw64/include/static
-```
 
 ### CMake
 

cmake/meson.build

@@ -30,6 +30,14 @@ if h5libdir == ''
     # assume homebrew
     h5libdir = '/usr/local/opt/hdf5/lib'
     h5incdir = include_directories('/usr/local/opt/hdf5/include')
+  elif os == 'windows'
+    # assume MSYS2
+    h5libdir = 'c:/msys64/mingw64/lib'
+    if get_option('default_library') == 'static'
+      h5incdir = include_directories('c:/msys64/mingw64/include/static')
+    else
+      h5incdir = include_directories('c:/msys64/mingw64/include/shared')
+    endif
   else
     h5libdir = []
   endif
@@ -45,12 +53,9 @@ foreach name : ['hdf5', 'hdf5_fortran', 'hdf5_hl', 'hdf5_hl_fortran', # msys2 na
   endif
 endforeach
 
-if hdf5_libs.length() == 0
-  error('could not find HDF5 library')
-endif
-
-hdf5 = hdf5_libs
 
-if not fc.links('use h5lt; end', dependencies: hdf5, include_directories: h5incdir, name: 'HDF5')
-  warning('HDF5 possible linking problems: ' +  h5run.stdout() + h5run.stderr())
+if not fc.links('use h5lt; end', dependencies: hdf5_libs, include_directories: h5incdir, name: 'HDF5')
+  hdf5 = disabler()
+else
+  hdf5 = declare_dependency(dependencies: hdf5_libs, include_directories: h5incdir)
 endif

meson.build

@@ -10,7 +10,6 @@ subdir('src')
 ooh5 = library('oohdf5',
   sources: hdf5_src,
   dependencies: hdf5,
-  include_directories: h5incdir,
   install: true)
 
 # --- testing