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Tidied up part on deprecated #import

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/tools/make/trunk@13211 72102866-910b-0410-8b05-ffd578937521
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Nicola Pero 2002-03-22 17:01:24 +00:00
parent 0324f75aca
commit 143d4d0140
1 changed files with 10 additions and 10 deletions
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Documentation/install.texi
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@ -130,16 +130,16 @@ CFLAGS="-I/usr/local/include" ./configure --with-thread-lib="-L/usr/local/lib -l
@subsection Warnings for deprecated #import
The #import directive, often found in legacy Objective-C code from the
NeXTstep and OpenStep era (and more recently on code from the Apple
MacOS X Cocoa environment), is deprecated. You should use #include
instead whenever possible, and even if you use #import, you should
protect all your headers against multiple inclusions. The GCC compiler
automatically emits a warning whenever you use #import. For political
and historical reasons (basically for fear of annoying legacy and MacOS
X users), these warnings are disabled by gnustep-make. But if you are
not a legacy (/MacOS X) user and/or you want to make sure your
Objective-C code is not using any deprecated feature, you should
configure gnustep-make with --disable-import:
NeXTstep era -- and more recently on code from the Apple MacOS X Cocoa
environment -- is deprecated. You should use #include instead whenever
possible, and even if you use #import, you should protect all your
headers against multiple inclusions. The GCC compiler automatically
emits a warning whenever you use #import. Because many users are
annoyed by these warnings and want to use #import (usually for
compatibility with other systems), gnustep-make automatically disables
these warnings. But if you want to make sure your Objective-C code is
not using any deprecated feature, you can configure gnustep-make with
--disable-import:
@example
./configure --disable-import
@end example