linalg-solve: gcc-15 test fix

Author: perazz

test/linalg/test_linalg_solve.fypp

@@ -22,13 +22,13 @@ module test_linalg_solve
         allocate(tests(0))
 
         #:for rk,rt,ri in REAL_KINDS_TYPES
-        tests = [tests,new_unittest("solve_${ri}$",test_${ri}$_solve), &
-                       new_unittest("solve_${ri}$_multiple",test_${ri}$_solve_multiple)]
+        call add_test(tests,new_unittest("solve_${ri}$",test_${ri}$_solve))
+        call add_test(tests,new_unittest("solve_${ri}$_multiple",test_${ri}$_solve_multiple))
         #:endfor
 
         #:for ck,ct,ci in CMPLX_KINDS_TYPES
-        tests = [tests,new_unittest("solve_complex_${ci}$",test_${ci}$_solve), &
-                       new_unittest("solve_2x2_complex_${ci}$",test_2x2_${ci}$_solve)]
+        call add_test(tests,new_unittest("solve_complex_${ci}$",test_${ci}$_solve))
+        call add_test(tests,new_unittest("solve_2x2_complex_${ci}$",test_2x2_${ci}$_solve))
         #:endfor
 
     end subroutine test_linear_systems    
@@ -150,7 +150,28 @@ module test_linalg_solve
 
     end subroutine test_2x2_${ri}$_solve
     #:endfor
-
+    
+    ! gcc-15 bugfix utility
+    pure subroutine add_test(tests,new_test)
+        type(unittest_type), allocatable, intent(inout) :: tests(:)    
+        type(unittest_type), intent(in) :: new_test
+        
+        integer :: n
+        type(unittest_type), allocatable :: new_tests(:)
+        
+        if (allocated(tests)) then 
+            n = size(tests)
+        else
+            n = 0
+        end if
+        
+        allocate(new_tests(n+1))
+        if (n>0) new_tests(1:n) = tests(1:n)
+                 new_tests(1+n) = new_test
+        call move_alloc(from=new_tests,to=tests)        
+    
+    end subroutine add_test
+    
 end module test_linalg_solve
 
 program test_solve