I liked Daniel Johnson's simplified version bumper guide so I modified the

# passing -version-info 3:12:1 sets current to 3, revision to 12, and age to

# 1.

#

# 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.

# Here's the simplified rule guide on how to change -version-info:

# (current version is C:R:A)

# 

# Here are a set of rules to help you update your library version information:

#

# 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+1:a)

#

# 4.If any interfaces have been added, removed, or changed since the last

# update, increment current, and set revision to 0. (c+1:r=0:a)

#

# 5.If any interfaces have been added since the last public release, then

# increment age. (c:r:a+1)

#

# 6.If any interfaces have been removed since the last public release, then

# set age to 0. (c:r:a=0)

# 1. if there are only source changes, use C:R+1:A

# 2. if interfaces were added use C+1:0:A+1

# 3. if interfaces were removed, then use C+1:0:0

#

# For the full guide on libcurl ABI rules, see docs/libcurl/ABI

if NO_UNDEFINED

# The -no-undefined flag is CRUCIAL for this to build fine on Cygwin.