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Provide better help text when bumping CURRENT,AGE,REVISION

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Signed-off-by: Thomas Graf <tgraf@suug.ch>
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Thomas Graf 2013-01-24 14:34:22 +01:00
parent 776cde0a10
commit b6afd0bf1a
1 changed files with 15 additions and 15 deletions
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30
configure.ac
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@ -16,23 +16,23 @@ m4_define([libnl_minor_version], [2])
m4_define([libnl_micro_version], [20])
# If either revision or age are omitted, they default to 0. Also note that age
# must be less than or equal to the current interface number.
# The following explanation may help to understand the above rules a bit
# better: consider that there are three possible kinds of reactions from
# users of your library to changes in a shared library:
#
# Here are a set of rules to help you update your library version information:
# 1. Programs using the previous version may use the new version as drop-in
# replacement, and programs using the new version can also work with the
# previous one. In other words, no recompiling nor relinking is needed.
# In this case, bump revision only, don't touch current nor age.
#
# 1. Start with version information of `0:0:0' for each libtool library.
# 2. Update the version information only immediately before a public release
# of your software. More frequent updates are unnecessary, and only
# guarantee that the current interface number gets larger faster.
# 3. If the library source code has changed at all since the last update, then
# increment revision (`c:r:a' becomes `c:r+1:a').
# 4. If any interfaces have been added, removed, or changed since the last
# update, increment current, and set revision to 0.
# 5. If any interfaces have been added since the last public release, then
# increment age.
# 6. If any interfaces have been removed since the last public release, then
# set age to 0.
# 2. Programs using the previous version may use the new version as drop-in
# replacement, but programs using the new version may use APIs not
# present in the previous one. In other words, a program linking against
# the new version may fail with “unresolved symbols” if linking against
# the old version at runtime: set revision to 0, bump current and age.
#
# 3. Programs may need to be changed, recompiled, relinked in order to use
# the new version. Bump current, set revision and age to 0.
m4_define([libnl_lt_current], [216])
m4_define([libnl_lt_revision], [0])