Adding GCC15 to CI, take 3

Author: gershnik

CMakeLists.txt

@@ -51,12 +51,15 @@ add_library(${LIBNAME}::${LIBNAME} ALIAS ${LIBNAME})
 set(ISPTR_MODULES_BASE_DIRS ${SRCDIR}/modules)
 set(ISPTR_MODULES_FILES ${SRCDIR}/modules/isptr.cppm)
 
+if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.28")
+
 function(isptr_add_module target_name visibility)
     target_sources(${target_name} ${visibility}
         FILE_SET isptr_module TYPE CXX_MODULES BASE_DIRS ${ISPTR_MODULES_BASE_DIRS} FILES ${ISPTR_MODULES_FILES}
     )
 endfunction()
 
+endif()
 
 if (PROJECT_IS_TOP_LEVEL)
 

test/CMakeLists.txt

@@ -31,12 +31,16 @@ set(CXX_STANDARD_20 20)
 set(CXX_STANDARD_23 23)
 
 set(TEST_VARIANTS_17 "headers")
+set(TEST_VARIANTS_20 "headers")
+set(TEST_VARIANTS_23 "headers")
+
 if (${ISPTR_ENABLE_MODULE})
-    set(TEST_VARIANTS_20 "headers;module")
-    set(TEST_VARIANTS_23 "headers;module")
-else()
-    set(TEST_VARIANTS_20 "headers")
-    set(TEST_VARIANTS_23 "headers")
+    if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.28")
+        list(APPEND TEST_VARIANTS_20 "module")
+        list(APPEND TEST_VARIANTS_23 "module")
+    else()
+        message(WARNING CMake version ${CMAKE_VERSION} doesn't support modules, ignoring ISPTR_ENABLE_MODULE)
+    endif()
 endif()
 
 set(TEST_COMMAND "")