diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 128 |
1 files changed, 94 insertions, 34 deletions
@@ -1,67 +1,68 @@ #!/bin/sh +set -e + CONFIGDIR="$(dirname $0)/config" show_help() { cat <<-EOF - usage: ./configure [-c version] [-p version | -x version] + usage: ./configure [options...] Options: - -c version Specify the version of ISO/IEC 9899 to conform to - -p version Specify the version of IEEE 1003.1/ISO/IED 9945-1 to - conform to - -x version Specify the version of the Single Unix Specification - (aka X/Open System Interface) to conform to + -a arch Choose the underlying architecture to build for: + $(awk '{ printf("\t%s\n", $0); }' ${CONFIGDIR}/architecture) + + -c version Conform to: + $(awk '{ printf("\t%s\n", $0); }' ${CONFIGDIR}/versions.c) - Valid options for -c are: - $(cat ${CONFIGDIR}/versions.c) + -p version Conform to: + $(awk '{ printf("\t%s\n", $0); }' ${CONFIGDIR}/versions.posix) - Valid options for -p are: - $(cat ${CONFIGDIR}/versions.posix) + -w wordsize Choose a word size for the architecuture: + $(awk '{ printf("\t%s\n", $0); }' ${CONFIGDIR}/wordsize) + + -x version Conform to: + $(awk '{ printf("\t%s\n", $0); }' ${CONFIGDIR}/versions.xopen) - Valid options for -x are: - $(cat ${CONFIGDIR}/versions.xopen) EOF } -validate_version() { - versfile="${CONFIGDIR}/versions.$1" +validate_option() { + option="${CONFIGDIR}/$1" - for ver in $(awk '/^[0-9]/ { print $1 }' "${versfile}"); do - if [ "$2" = "${ver}" ]; then - echo $2 + for opt in $(awk '/^[0-9]/ { print $1 }' "${option}"); do + if [ "$2" = "${opt}" ]; then + echo "$2" return 0 fi done - echo 0 -} - -double_check_version() { - if [ "$2" = "0" ]; then - printf 'Invalid version "%s". Valid versions are:\n' $3 - cat "${CONFIGDIR}/versions.$1" - exit 1 - fi + printf 'Invalid option '%s'. Valid options are:\n' "$2" >&2 + cat "${option}" >&2 + exit 1 } option= + +architecture=x86 +wordsize=64 + standard_c= posix= xopen= while getopts hc:p:x: option; do case ${option} in - c) standard_c=$(validate_version c ${OPTARG}) - double_check_version c ${standard_c} ${OPTARG} + a) architecture=$(validate_option architecture ${OPTARG}) + ;; + + c) standard_c=$(validate_option c ${OPTARG}) ;; - p) posix=$(validate_version posix ${OPTARG}) - double_check_version posix ${posix} ${OPTARG} + p) posix=$(validate_option posix ${OPTARG}) ;; - x) xopen=$(validate_version xopen ${OPTARG}) - double_check_version xopen ${xopen} ${OPTARG} + x) xopen=$(validate_option xopen ${OPTARG}) ;; h) show_help @@ -108,7 +109,66 @@ if [ ${posix:-0} -ge 200112 ] && [ $standard_c -lt 199901 ]; then exit 1 fi +printf 'C library configured to conform to the following standards:\n' printf 'ISO C: %d\n' ${standard_c} -printf 'POSIX: %d\n' ${posix} -printf 'X/OPEN: %d\n' ${xopen} +test -n "${posix}" && printf 'POSIX: %d\n' ${posix} +test -n "${xopen}" && printf 'X/OPEN: %d\n' ${xopen} + +printf 'Building for %d-bit %s architecture\n' "${wordsize}" "${architecture}" + +exec > Makefile + +cat <<-EOF + .POSIX: + .DEFAULT:;\$(MAKE) all + + ARCHITECTURE=${architecture} + WORDSIZE=${WORDSIZE} + SRCDIR=$(dirname $0)/src + INCDIR=$(dirname $0)/include + OBJDIR=$(pwd)/obj + +EOF + +if [ ${standard_c:-1} -lt 199901 ]; then + printf 'CC=c89\n' +else + printf 'CC=c%02d\n' $(( (standard_c / 100) % 100 )) +fi + +if [ -n "${xopen}" ]; then + if [ $xopen -eq 400 ]; then + printf 'CFLAGS=-D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1\n' + else + printf 'CFLAGS=-D_XOPEN_SOURCE=%d\n' "${xopen}" + fi +elif [ -n "${posix}" ]; then + printf 'CFLAGS=-D_POSIX_C_SOURCE=%d\n' "${posix}" +fi + +cat <<EOF + +all: .deps.mk include + @mkdir -p \$(OBJDIR) + \$(MAKE) -f .deps.mk $@ + +deps: .headers.mk .deps.mk + +.deps.mk: mk.sh + sh -c '. ./mk.sh; make_deps_mk' + +.headers.mk: mk.sh + sh -c '. ./mk.sh; make_headers_mk' + +headers include: .headers.mk mkh.sh + \$(MAKE) -f .headers.mk headers + +ctags: + ctags \$\$(find src -name \*.c) + +clean: + rm -rf \$(OBJDIR) *.a +extra-clean: clean + rm -rf .deps .*.mk \$(INCDIR) +EOF |