ObjSQLite3  Check-in [7237f5df86]

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Comment:configure: Update for autoconf 2.71
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SHA3-256: 7237f5df863f2a7eb42ec40b46cbd8dce5207ce47a349c024a6e6964f604fc66
User & Date: js on 2023-04-17 18:17:19
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Context
2023-04-17
18:17
Update to ObjFW changes check-in: 864d196335 user: js tags: trunk
18:17
configure: Update for autoconf 2.71 check-in: 7237f5df86 user: js tags: trunk
2021-04-28
22:54
Adjust to ObjFW changes check-in: 74061183c3 user: js tags: trunk
Changes
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Modified configure.ac from [bb3680cb26] to [89efa37ffa].

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AS_IF([test x"$GOBJC" = x"yes"], [
	OBJCFLAGS="$OBJCFLAGS -Wall -Werror -Wwrite-strings -Wpointer-arith"

	old_OBJCFLAGS="$OBJCFLAGS"
	OBJCFLAGS="$OBJCFLAGS -Wcast-align"
	AC_MSG_CHECKING(whether -Wcast-align is buggy)
	AC_TRY_COMPILE([
		#ifdef __has_attribute
		# if __has_attribute(objc_root_class)
		__attribute__((__objc_root_class__))
		# endif
		#endif
		@interface Foo
		{
			struct objc_class *_isa;
		}
		@end
	AC_COMPILE_IFELSE([
		AC_LANG_SOURCE([
			#ifdef __has_attribute
			# if __has_attribute(objc_root_class)
			__attribute__((__objc_root_class__))
			# endif
			#endif
			@interface Foo
			{
				struct objc_class *_isa;
			}
			@end

		@implementation Foo
		- (void)foo
		{
			struct objc_class *c = _isa;
			(void)c;
		}
		@end
	], [
			@implementation Foo
			- (void)foo
			{
				struct objc_class *c = _isa;
				(void)c;
			}
			@end
		])
	], [
		AC_MSG_RESULT(no)
	], [
		AC_MSG_RESULT(yes)
		OBJCFLAGS="$old_OBJCFLAGS"
	])
])
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