CMake: Print the time_t size (32-bit/64-bit)

fxlb · fxlb · commit e80cc07aa0f7 · 2025-03-17T06:55:02.000Z
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -458,11 +458,16 @@ include(CheckVariableExists)
 include(CheckTypeSize)
 
 #
-# Get the size of a time_t, to know whether it's 32-bit or 64-bit.
+# Get the size of a time_t, to know whether it's 32-bit or 64-bit. Print it.
 #
 cmake_push_check_state()
 set(CMAKE_EXTRA_INCLUDE_FILES time.h)
 check_type_size("time_t" SIZEOF_TIME_T)
+if(SIZEOF_TIME_T EQUAL 4)
+  message(STATUS "32-bit time_t")
+elseif(SIZEOF_TIME_T EQUAL 8)
+  message(STATUS "64-bit time_t")
+endif()
 cmake_pop_check_state()
 
 #

Original file line number	Diff line number	Diff line change
`@@ -458,11 +458,16 @@ include(CheckVariableExists)`
`458`	`458`	`include(CheckTypeSize)`
`459`	`459`
`460`	`460`	`#`
`461`		`-# Get the size of a time_t, to know whether it's 32-bit or 64-bit.`
	`461`	`+# Get the size of a time_t, to know whether it's 32-bit or 64-bit. Print it.`
`462`	`462`	`#`
`463`	`463`	`cmake_push_check_state()`
`464`	`464`	`set(CMAKE_EXTRA_INCLUDE_FILES time.h)`
`465`	`465`	`check_type_size("time_t" SIZEOF_TIME_T)`
	`466`	`+if(SIZEOF_TIME_T EQUAL 4)`
	`467`	`+ message(STATUS "32-bit time_t")`
	`468`	`+elseif(SIZEOF_TIME_T EQUAL 8)`
	`469`	`+ message(STATUS "64-bit time_t")`
	`470`	`+endif()`
`466`	`471`	`cmake_pop_check_state()`
`467`	`472`
`468`	`473`	`#`