50 lines
1.5 KiB
Bash
50 lines
1.5 KiB
Bash
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#!/bin/sh
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if test $# -eq 0; then
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echo "user_settings_asm.sh requires one argument specifying compiler flags to pull include directories from." 1>&2
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exit 1
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fi
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# Compress multiple spaces to single spaces, then replace instances of
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# "-I " with "-I" (i.e. remove spaces between -I and the include path).
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search_string=$(echo "$1" | sed -e 's/ */ /g' -e 's/-I /-I/g')
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for token in $search_string
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do
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case "$token" in
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-I*)
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# Trim off the leading "-I".
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path="${token#-I}"
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# Trim off the trailing "/".
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path="${path%/}"
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if test -e "$path/user_settings.h"; then
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user_settings_dir="$path"
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user_settings_path="$path/user_settings.h"
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break
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fi
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;;
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*)
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;;
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esac
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done
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# Fall back to user_settings.h in the current directory.
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if test -z "${user_settings_path-}"; then
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if test -e "user_settings.h"; then
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user_settings_dir="."
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user_settings_path="user_settings.h"
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fi
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fi
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if test -z "${user_settings_path-}"; then
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echo "Unable to find user_settings.h." 1>&2
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exit 1
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else
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# Strip out anything from user_settings.h that isn't a preprocessor
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# directive (i.e. any lines not starting with #). Put the result in
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# user_settings_asm.h in the same directory as user_settings.h.
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# user_settings_asm.h is safe to include in assembly files (e.g. .S
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# files).
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sed -e '/^ *#/!d' -e :a -e '$!N;s/\\\n/ /;ta' -e 'P;D' < "$user_settings_path" > "$user_settings_dir/user_settings_asm.h"
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fi
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