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#
# Sed script to parse CPP macros and generate output usable by make
#
# It is expected that this script is fed the output of 'gpp -dM'
# which preprocesses the common.h header files and outputs the final
# list of CPP macros (and whitespace is sanitized)
#
# Only process values prefixed with #define CONFIG_
/^#define CONFIG_[A-Za-z0-9_]\+/ {
# Strip the #define prefix
s/#define *//;
# Change to form CONFIG_*=VALUE
s/ \+/=/;
# Drop trailing spaces
s/ *$//;
# drop quotes around string values
s/="\(.*\)"$/=\1/;
# Concatenate string values
s/" *"//g;
# Wrap non-numeral values with quotes
s/=\(.*\?[^0-9].*\)$/=\"\1\"/;
# Change '1' and empty values to "y" (not perfect, but
# supports conditional compilation in the makefiles
s/=$/=y/;
s/=1$/=y/;
# print the line
p
}
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