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d3abdc6252
C version of #1006 Note that I switched all the C builds to use -O2 and that meant that the compiler found some more warnings so I also fixed these up. The possibly undefined ones were harmless, the aliasing one is now more correct. As these are small programs, the caching from `docker build` makes no real difference, and worst case compile time is much better. Signed-off-by: Justin Cormack <justin.cormack@docker.com>
57 lines
804 B
Bash
Executable File
57 lines
804 B
Bash
Executable File
#!/bin/sh
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# This is designed to compile a single package to a single binary
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# so it makes some assumptions about things to simplify config
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# to output a single binary (in a tarball) just use -o file
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# use --docker to output a tarball for input to docker build -
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set -e
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usage() {
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echo "Usage: -o file"
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exit 1
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}
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[ $# = 0 ] && usage
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while [ $# -gt 0 ]
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do
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flag="$1"
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case "$flag" in
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-o)
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[ $# -eq 1 ] && usage
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out="$2"
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mkdir -p "$(dirname $2)"
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shift
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;;
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-l*)
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LIBS="$LIBS $1"
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shift
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;;
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*)
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echo "Unknown option $1"
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exit 1
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esac
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shift
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done
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[ -z "$out" ] && usage
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package=$(basename "$out")
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dir="/src/$package"
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mkdir -p $dir
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# untar input
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tar xf - -C $dir
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(
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cd $dir
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CFILES=$(find . -name '*.c')
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cc -static -O2 -Wall -Werror -o ../../$out $CFILES $LIBS
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)
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tar cf - $out
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exit 0
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