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[libpng15] Fix 'setting' handling in options.awk and fixed palette_max API

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This commit is contained in:
John Bowler
2013-02-05 07:41:43 -06:00
committed by Glenn Randers-Pehrson
parent 10303740d1
commit 3b69793c6f
5 changed files with 18 additions and 7 deletions
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18
scripts/options.awk
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@@ -48,6 +48,8 @@ BEGIN{
dq="@'" # For a single double quote
start=" PNG_DFN \"" # Start stuff to output (can't contain a "!)
end="\" " # End stuff to output
subs="@\" " # Substitute start (substitute a C macro)
sube=" \"@" # Substitute end
comment=start "/*" # Comment start
cend="*/" end # Comment end
def=start "#define PNG_" # Arbitrary define
@@ -497,10 +499,17 @@ END{
# All the requirements have been processed, output
# this setting.
if (deb) print "setting", i
deflt = defaults[i]
# A leading @ means leave it unquoted so the preprocessor
# can substitute the build time value
if (deflt ~ /^ @/)
deflt = " " subs substr(deflt, 3) sube
# Remove any spurious trailing spaces
sub(/ *$/,"",deflt)
print "" >out
print "/* setting: ", i >out
print " * requires:" setting[i] >out
print " * default: ", defaults[i], "*/" >out
print " * default: ", defaults[i] defltinfo, "*/" >out
if (defaults[i] == "") { # no default, only check if defined
print "#ifdef PNG_" i >out
}
@@ -512,13 +521,14 @@ END{
if (defaults[i] != "") { # default handling
print "#ifdef PNG_" i >out
}
print def i, "PNG_" i end >out
# PNG_<i> is defined, so substitute the value:
print def i, subs "PNG_" i sube end >out
if (defaults[i] != "") {
print "#else /*default*/" >out
# And add the default definition for the benefit
# of later settings an options test:
print "# define PNG_" i defaults[i] >out
print def i defaults[i] end >out
print "# define PNG_" i deflt >out
print def i deflt end >out
}
print "#endif" >out