1.5 Compiler Flags
Compiler flags are options you give to
gcc when it
compiles a file or set of files. You may provide these directly on
the command line, or your development tools may generate them when
they invoke gcc. This section describes just the
flags that are specific to Objective-C.
- -fconstant-string-class= ClassName
-
Tells the compiler to create an instance of
ClassName for each string literal
expressed with the
@"string" directive.
For the GNU runtime, the default class is
NXConstantString; for Cocoa it is
NSConstantString.
- -fgnu-runtime
-
Generate code for linking with the
standard GNU Objective-C runtime. This is the default option for most
gcc installations.
- -fnext-runtime
-
Generate code
for linking with the NeXT runtime. This is the default option for
Darwin.
- -gen-decls
-
Write all interface declarations
the compiler sees to a file named
sourcename.decl.
- -Wno-protocol
-
Do not warn if methods required by
a protocol are not implemented in the class adopting it.
- -Wselector
-
Warn if there are methods with the
same name but different signatures.
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