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- #!/bin/sh
- # Generate the list of rules for the single-binary option based on all the other
- # binaries found in src/local.mk.
- #
- # We need to duplicate the specific rules to build each program into a new
- # static library target. We can't reuse the existing target since we need to
- # create a .a file instead of linking the program. We can't do this at
- # ./configure since the file names need to be available when automake runs
- # to let it generate all the required rules in Makefile.in. The configure
- # step will select which ones will be used to build, but they need to be
- # generated beforehand.
- #
- # Instead of maintaining a duplicated list of rules, we generate the
- # single-binary required rules based on the normal configuration found on
- # src/local.mk with this script.
- if test "x$1" = "x"; then
- echo "Usage: $0 path/to/src/local.mk" >&2
- exit 1
- fi
- set -e
- LOCAL_MK=$1
- GEN_LISTS_OF_PROGRAMS="`dirname "$0"`/gen-lists-of-programs.sh"
- ALL_PROGRAMS=$($GEN_LISTS_OF_PROGRAMS --list-progs \
- | grep -v -F -e coreutils -e libstdbuf.so \
- | tr '[' '_')
- # Compute default SOURCES. automake will assume the source file for the
- # src_${cmd} target to be src/${cmd}.c, but we will add rules to generate
- # the lib src_libsinglebin_${cmd}_a which won't match the autogenerated source
- # file. This loop will initialize the default source file and will be reset
- # later if needed.
- for cmd in $ALL_PROGRAMS; do
- eval "src_${cmd}_SOURCES=src/${cmd}.c"
- done
- # Load actual values from src/local.mk. This will read all the variables from
- # the local.mk matching the src_${cmd}_... case.
- while read l; do
- if echo "$l" | grep -E '^src_\w+ +\+?=' > /dev/null; then
- var=$(echo $l | cut -f 1 -d ' ')
- value=$(echo $l | cut -f 2- -d =)
- if [ "$value" != " \$(LDADD)" ]; then
- oldvalue=""
- if echo $l | grep -F '+=' >/dev/null; then
- eval "oldvalue=\${$var}"
- fi
- value=$(echo "$value" | sed "s/'/'\"'\"'/g")
- eval "$var='$oldvalue "$value"'"
- fi
- fi
- done < $LOCAL_MK
- me=`echo "$0" | sed 's,.*/,,'`
- echo "## Automatically generated by $me. DO NOT EDIT BY HAND!"
- # Override the sources for dir and vdir. We use a smaller version of dir and
- # vdir that relies on the ls main.
- src_dir_SOURCES="src/coreutils-dir.c"
- src_dir_LDADD="$src_dir_LDADD src/libsinglebin_ls.a"
- echo src_libsinglebin_dir_a_DEPENDENCIES = src/libsinglebin_ls.a
- src_vdir_SOURCES="src/coreutils-vdir.c"
- src_vdir_LDADD="$src_vdir_LDADD src/libsinglebin_ls.a"
- echo src_libsinglebin_vdir_a_DEPENDENCIES = src/libsinglebin_ls.a
- # Override the sources for arch likewise, using the main from uname.
- src_arch_SOURCES="src/coreutils-arch.c"
- src_arch_LDADD="$src_arch_LDADD src/libsinglebin_uname.a"
- echo src_libsinglebin_arch_a_DEPENDENCIES = src/libsinglebin_uname.a
- for cmd in $ALL_PROGRAMS; do
- echo "# Command $cmd"
- echo noinst_LIBRARIES += src/libsinglebin_${cmd}.a
- base="src_libsinglebin_${cmd}_a"
- # SOURCES
- var=src_${cmd}_SOURCES
- eval "value=\$$var"
- echo "${base}_SOURCES = $value"
- # LDADD
- var=src_${cmd}_LDADD
- eval "value=\$$var"
- if [ "x$value" != "x" ]; then
- echo "${base}_ldadd = $value"
- fi
- # CFLAGS
- # Hack any other program defining a main() replacing its main by
- # single_binary_main_$PROGRAM_NAME.
- echo "${base}_CFLAGS = \"-Dmain=single_binary_main_${cmd} (int, char **);" \
- " int single_binary_main_${cmd}\" " \
- "-Dusage=_usage_${cmd} \$(src_coreutils_CFLAGS)"
- var=src_${cmd}_CFLAGS
- eval "value=\$$var"
- if [ "x$value" != "x" ]; then
- echo "${base}_CFLAGS += $value"
- fi
- # CPPFLAGS
- var=src_${cmd}_CPPFLAGS
- eval "value=\$$var"
- if [ "x$value" != "x" ]; then
- echo "${base}_CPPFLAGS = $value"
- fi
- done
- exit 0
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