Differences From Artifact [757dafee63]:
- File
configure.ac
— part of check-in
[3f704f13c4]
at
2016-05-21 21:53:27
on branch trunk
— configure: Remove check for GCC bug objc/27438
GCC < 4.6 is not supported anymore, so there is no version supported
anymore that has this bug. (user: js, size: 31304) [annotate] [blame] [check-ins using]
To Artifact [d1ec3110f5]:
- File
configure.ac
— part of check-in
[ec429f2476]
at
2016-05-22 14:50:52
on branch trunk
— configure: Check for buggy -Wunused-property-ivar
This warning is buggy in old Clang versions (at least in 3.4 as shipped
by Ubuntu 14.04), as it gets confused if a class has a class method with
the same name as a property. (user: js, size: 31748) [annotate] [blame] [check-ins using]
| ︙ | ︙ | |||
1105 1106 1107 1108 1109 1110 1111 |
AS_IF([test x"$GOBJC" = x"yes"], [
OBJCFLAGS="$OBJCFLAGS -Wwrite-strings -Wpointer-arith -Werror"
AC_MSG_CHECKING(whether we need -Wno-strict-aliasing due to GCC bugs)
AC_TRY_COMPILE([
@interface Foo
{
| | | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 |
AS_IF([test x"$GOBJC" = x"yes"], [
OBJCFLAGS="$OBJCFLAGS -Wwrite-strings -Wpointer-arith -Werror"
AC_MSG_CHECKING(whether we need -Wno-strict-aliasing due to GCC bugs)
AC_TRY_COMPILE([
@interface Foo
{
struct objc_class *_isa;
}
@end
static struct {
struct objc_class *_isa;
} object;
], [
Foo *test = (Foo*)&object;
(void)test; /* Get rid of unused variable warning */
], [
AC_MSG_RESULT(no)
], [
AC_MSG_RESULT(yes)
OBJCFLAGS="$OBJCFLAGS -Wno-strict-aliasing"
])
AC_MSG_CHECKING(
whether we need -Wno-unused-property-ivar due to Clang bugs)
AC_TRY_COMPILE([
#ifdef __has_attribute
# if __has_attribute(objc_root_class)
__attribute__((__objc_root_class__))
# endif
#endif
@interface Foo
{
struct objc_class *_isa;
Foo *_foo;
}
@property (readonly, retain) Foo *foo;
+ (Foo*)foo;
@end
@implementation Foo
@synthesize foo = _foo;
+ (Foo*)foo
{
return (Foo*)0;
}
@end
], [
], [
AC_MSG_RESULT(no)
], [
AC_MSG_RESULT(yes)
OBJCFLAGS="$OBJCFLAGS -Wno-unused-property-ivar"
])
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)
|
| ︙ | ︙ | |||
1176 1177 1178 1179 1180 1181 1182 | AS_IF([test x"$check_pedantic" = x"yes"], [ old_OBJCFLAGS="$OBJCFLAGS" OBJCFLAGS="$OBJCFLAGS -pedantic" AC_MSG_CHECKING(whether -pedantic is buggy) AC_TRY_COMPILE([ #import <stdlib.h> | < < < < < | 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 |
AS_IF([test x"$check_pedantic" = x"yes"], [
old_OBJCFLAGS="$OBJCFLAGS"
OBJCFLAGS="$OBJCFLAGS -pedantic"
AC_MSG_CHECKING(whether -pedantic is buggy)
AC_TRY_COMPILE([
#import <stdlib.h>
@interface Foo
{
void *foo;
}
@end
@interface Bar: Foo
|
| ︙ | ︙ |