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[libpng15] Change options.awk to use pngconf.h for versioning

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instead of ANNOUNCE
This commit is contained in:
John Bowler
2011-11-08 19:34:54 -06:00
committed by Glenn Randers-Pehrson
parent dd81915d5b
commit d4973837b2
6 changed files with 43 additions and 26 deletions
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26
scripts/options.awk
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@@ -32,7 +32,8 @@
BEGIN{
out="/dev/null" # intermediate, preprocessed, file
pre=-1 # preprocess (first line)
version="" # version information
version="libpng version unknown" # version information
version_file="" # where to find the version
err=0 # in-line exit sets this
start="PNG_DEFN_MAGIC-" # Arbitrary start
end="-PNG_DEFN_END" # Arbitrary end
@@ -87,14 +88,25 @@ pre == -1{
}
}
# While pre-processing if the filename is ANNOUNCE then just look for a line
# which gives the version information for this build.
pre && FILENAME ~ /ANNOUNCE$/ && version == "" && $1 == "Libpng"{
version=$0
print "version =", version >out
# While pre-processing if version is set to "search" look for a version string
# in the following file.
pre && version == "search" && version_file == ""{
version_file = FILENAME
}
pre && FILENAME ~ /ANNOUNCE$/{
pre && version == "search" && version_file != FILENAME{
print "version string not found in", version_file
err = 1
exit 1
}
pre && version == "search" && $0 ~ /^ \* libpng version/{
version = substr($0, 4)
print "version =", version >out
next
}
pre && FILENAME == version_file{
next
}