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authorGravatar Rob Landley <rob@landley.net>2006-02-13 19:16:41 +0000
committerGravatar Rob Landley <rob@landley.net>2006-02-13 19:16:41 +0000
commit7bfa88f315d71c7f7a1b76fcec3886c7506aca24 (patch)
tree5995ddbb62eeda3512fa408b78bbd1eb8832ae4a /include
parentf251ec6847d28035ae42ad2c1ae94454d36c36d3 (diff)
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New USE() macros
For each CONFIG_SYMBOL, include/bb_config.h now has both ENABLE_SYMBOL and USE_SYMBOL(x). ENABLE_SYMBOL is still always defined (1 or 0) so that if(ENABLE) should optimize out when it's zero. The USE_SYMBOL(X) will only splice in X if the symbol is defined, otherwise it'll be empty. Thus we can convert this: #ifdef CONFIG_ARGS opt = bb_getopt_ulflags(argc, argv, "ab:c" #ifdef CONFIG_THINGY "d:" #endif , &bvalue #ifdef CONFIG_THINGY , &thingy #endif ); #endif into this: if (ENABLE_ARGS) { opt = bb_getopt_ulflags(argc, argv, "ab:c" USE_THINGY("d:"), &bvalue USE_THINGY(, &thingy)); } And it should produce the same code. Unlike the old versions in include/_usage.h, the new USE_SYMBOL(x) can handle commas in its arguments (as shown above). (The _usage.h file is obsolete and no longer generated.) Nobody should need to include config.h directly anymore, bb_config.h should define all the configuration stuff we need. Someday, the CONFIG_SYMBOL versions should go away in favor of ENABLE_SYMBOL and USE_SYMBOL(). Thanks to vodz for the new version of bb_mkdep.c that works with function macros.
Diffstat (limited to 'include')
-rw-r--r--include/platform.h5
1 files changed, 0 insertions, 5 deletions
diff --git a/include/platform.h b/include/platform.h
index 773d6b8b2..68c7abbc6 100644
--- a/include/platform.h
+++ b/include/platform.h
@@ -78,9 +78,4 @@
# endif
#endif
-
-/* include USAGE_APPLET_x helper macros for usage.h. */
-/*
-#include "_usage.h"
-*/
#endif /* platform.h */