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Diffstat (limited to 'Documentation/howto-build-sys.txt')
| -rw-r--r-- | Documentation/howto-build-sys.txt | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/howto-build-sys.txt b/Documentation/howto-build-sys.txt new file mode 100644 index 000000000..22ae8fc6f --- /dev/null +++ b/Documentation/howto-build-sys.txt @@ -0,0 +1,30 @@ +util-linux build system +======================= + + - all util-linux specific autoconf macros use UL_ prefix + + - utils in Makedile.am files are enabled/disabled according to BUILD_<NAME> + conditions (AM_CONDITIONAL), for example: + + if BUILD_HWCLOCK + ... + endif + + - all BUILD_<NAME> in configure.am are always based on build_<name> variables, + for example: + + AM_CONDITIONAL([BUILD_HWCLOCK], test "x$build_hwclock" = xyes) + + the $build_<name> should be available in whole configure script + + - AC_ARG_ENABLE() status is always stored in $enable_<name> variable, possible + setting: + + "check" - util/feature is optional, if any subcomponent (function, lib, + ...) is missing a warning is printed and the util/feature is + disabled + + "yes" - util/feature is required, if any subcomponent (function, lib, + ...) is missing an error is printed and ./configure aborted + + "no" - the util/feature is unwanted |