tests: add fortran cmake subproject include test

ci:unused_arg: update ninja version to work with fortran+cmake

.github/workflows/unusedargs_missingreturn.yml

@@ -4,6 +4,10 @@ name: UnusedMissingReturn
 # * missing return values
 # * strict prototypes
 # some users have default configs that will needlessly fail Meson self-tests due to these syntax.
+env:
+  CFLAGS: "-Werror=unused-parameter -Werror=return-type -Werror=strict-prototypes"
+  CPPFLAGS: "-Werror=unused-parameter -Werror=return-type"
+  FFLAGS: "-fimplicit-none"
 
 on:
   push:
@@ -31,10 +35,10 @@ on:
 jobs:
 
   linux:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v1
-    - uses: actions/setup-python@v1
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v2
       with:
         python-version: '3.x'
     - name: Install Compilers
@@ -42,30 +46,19 @@ jobs:
         sudo apt update -yq
         sudo apt install -yq --no-install-recommends g++ gfortran ninja-build gobjc gobjc++
     - run: python run_project_tests.py --only cmake common fortran platform-linux "objective c" "objective c++"
-      env:
-        CI: "1"
-        CFLAGS: "-Werror=unused-parameter -Werror=return-type -Werror=strict-prototypes"
-        CPPFLAGS: "-Werror=unused-parameter -Werror=return-type"
-        FFLAGS: "-fimplicit-none"
 
   windows:
     runs-on: windows-latest
     steps:
-    - uses: actions/checkout@v1
-    - uses: actions/setup-python@v1
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v2
       with:
         python-version: '3.x'
-    # ninja==1.10 pypi release didn't ship with windows binaries, which causes
-    # pip to try to build it which fails on Windows. Pin the previous version
-    # for now. We can update once that's fixed.
-    # https://pypi.org/project/ninja/1.10.0/#files
-    - run: pip install ninja==1.9.0.post1 pefile
+
+    - run: pip install ninja pefile
+
     - run: python run_project_tests.py --only platform-windows
       env:
-        CI: "1"
-        CFLAGS: "-Werror=unused-parameter -Werror=return-type -Werror=strict-prototypes"
-        CPPFLAGS: "-Werror=unused-parameter -Werror=return-type"
-        FFLAGS: "-fimplicit-none"
         CC: gcc
         CXX: g++
         FC: gfortran

test cases/fortran/15 include/include_hierarchy.f90

@@ -1,3 +1,4 @@
+program test_include_hier
 
 implicit none
 

test cases/fortran/15 include/include_syntax.f90

@@ -1,3 +1,5 @@
+program test_include_syntax
+
 implicit none
 
 integer :: x, y
@@ -20,4 +22,4 @@ if (x/=4) error stop 'failed on second include'
 
 print *, 'OK: Fortran include tests: x=',x
 
-end program
+end program

test cases/fortran/15 include/include_tests.f90

@@ -1,24 +0,0 @@
-implicit none
-
-integer :: x, y
-
-x = 1
-y = 0
-
-! include "timestwo.f90"
-
-! double quote and inline comment check
-include "timestwo.f90"  ! inline comment check
-if (x/=2) error stop 'failed on first include'
-
-! leading space and single quote check
-  include 'timestwo.f90'
-if (x/=4) error stop 'failed on second include'
-
-! Most Fortran compilers can't handle the non-standard #include,
-! including (ha!) Flang, Gfortran, Ifort and PGI.
-! #include "timestwo.f90"
-
-print *, 'OK: Fortran include tests: x=',x
-
-end program

test cases/fortran/15 include/meson.build

@@ -1,8 +1,19 @@
 project('Inclusive', 'fortran',
   meson_version: '>= 0.51.1')
 
+cm = import('cmake')
+
 hier_exe = executable('include_hierarchy', 'include_hierarchy.f90')
 test('Fortran include file hierarchy', hier_exe)
 
 syntax_exe = executable('include_syntax', 'include_syntax.f90')
-test('Fortran include file syntax', syntax_exe)
+test('Fortran include file syntax', syntax_exe)
+
+# older CI runs into problems with too-old Ninja and CMake and Fortran
+ninja_version = run_command('ninja', '--version').stdout().strip()
+cmake_version = run_command('cmake', '--version').stdout().split()[2]
+if ninja_version.version_compare('>=1.10.0') and cmake_version.version_compare('>=3.17.0')
+  cm.subproject('cmake_inc')
+else
+  message('SKIP: CMake Fortran subproject with include. Ninja >= 1.10 and CMake >= 3.17 needed. You have Ninja ' + ninja_version + ' and CMake ' + cmake_version)
+endif

test cases/fortran/15 include/subprojects/cmake_inc/CMakeLists.txt

@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 3.17)
+project(cmake_inc LANGUAGES Fortran)
+
+add_executable(main main.f90)

test cases/fortran/15 include/subprojects/cmake_inc/main.f90

@@ -0,0 +1,9 @@
+program test_subproject_inc
+
+implicit none
+
+include 'thousand.f90'
+
+if (thousand /= 1000) error stop 'did not include properly'
+
+end program

test cases/fortran/15 include/subprojects/cmake_inc/thousand.f90

@@ -0,0 +1 @@
+integer, parameter :: thousand = 1000