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make it possible to have include/applets.h-esque entries in .c files

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As an example, bunzip2 and bzcat is changed to use it.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2010-06-06 00:53:45 +02:00
parent 0e5ba0843b
commit 6c5bf0d347
7 changed files with 38 additions and 22 deletions
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31
scripts/gen_build_files.sh
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@ -7,6 +7,27 @@ cd -- "$2" || { echo "Syntax: $0 SRCTREE OBJTREE"; exit 1; }
srctree="$1"
# (Re)generate include/applets.h
src="$srctree/include/applets.src.h"
dst="include/applets.h"
s=`sed -n 's@^//applet:@@p' -- */*.c */*/*.c`
echo "/* DO NOT EDIT. This file is generated from applets.src.h */" >"$dst.$$.tmp"
# Why "IFS='' read -r REPLY"??
# This atrocity is needed to read lines without mangling.
# IFS='' prevents whitespace trimming,
# -r suppresses backslash handling.
while IFS='' read -r REPLY; do
test x"$REPLY" = x"INSERT" && REPLY="$s"
printf "%s\n" "$REPLY"
done <"$src" >>"$dst.$$.tmp"
if test -f "$dst" && cmp -s "$dst.$$.tmp" "$dst"; then
rm -- "$dst.$$.tmp"
else
echo " GEN $dst"
mv -- "$dst.$$.tmp" "$dst"
fi
# (Re)generate */Kbuild and */Config.in
find -type d | while read -r d; do
d="${d#./}"
src="$srctree/$d/Kbuild.src"
@ -15,17 +36,12 @@ find -type d | while read -r d; do
#echo " CHK $dst"
s=`sed -n 's@^//kbuild:@@p' -- "$srctree/$d"/*.c`
echo "# DO NOT EDIT. This file is generated from Kbuild.src" >"$dst.$$.tmp"
# Why "IFS='' read -r REPLY"??
# This atrocity is needed to read lines without mangling.
# IFS='' prevents whitespace trimming,
# -r suppresses backslash handling.
echo "# DO NOT EDIT. This file is generated from Kbuild.src" >"$dst.$$.tmp"
while IFS='' read -r REPLY; do
test x"$REPLY" = x"INSERT" && REPLY="$s"
printf "%s\n" "$REPLY"
done <"$src" >>"$dst.$$.tmp"
if test -f "$dst" && cmp -s "$dst.$$.tmp" "$dst"; then
rm -- "$dst.$$.tmp"
else
@ -40,13 +56,12 @@ find -type d | while read -r d; do
#echo " CHK $dst"
s=`sed -n 's@^//config:@@p' -- "$srctree/$d"/*.c`
echo "# DO NOT EDIT. This file is generated from Config.src" >"$dst.$$.tmp"
echo "# DO NOT EDIT. This file is generated from Config.src" >"$dst.$$.tmp"
while IFS='' read -r REPLY; do
test x"$REPLY" = x"INSERT" && REPLY="$s"
printf "%s\n" "$REPLY"
done <"$src" >>"$dst.$$.tmp"
if test -f "$dst" && cmp -s "$dst.$$.tmp" "$dst"; then
rm -- "$dst.$$.tmp"
else