diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/configure b/configure new file mode 100755 index 0000000..91af417 --- /dev/null +++ b/configure @@ -0,0 +1,169 @@ +#!/bin/bash + +# We don't support srcdir != builddir +echo \#buildapi-variable-no-builddir > /dev/null + +prefix=/usr + +enable_documentation=yes +enable_dracut_cpio=no + +CC="${CC:-cc}" +PKG_CONFIG="${PKG_CONFIG:-pkg-config}" + +# Little helper function for reading args from the commandline. +# it automatically handles -a b and -a=b variants, and returns 1 if +# we need to shift $3. +read_arg() { + # $1 = arg name + # $2 = arg value + # $3 = arg parameter + local rematch='^[^=]*=(.*)$' + if [[ $2 =~ $rematch ]]; then + read -r "$1" <<< "${BASH_REMATCH[1]}" + else + read -r "$1" <<< "$3" + # There is no way to shift our callers args, so + # return 1 to indicate they should do it instead. + return 1 + fi + return 0 +} + +while (($# > 0)); do + case "${1%%=*}" in + --prefix) read_arg prefix "$@" || shift ;; + --libdir) read_arg libdir "$@" || shift ;; + --datadir) read_arg datadir "$@" || shift ;; + --sysconfdir) read_arg sysconfdir "$@" || shift ;; + --sbindir) read_arg sbindir "$@" || shift ;; + --mandir) read_arg mandir "$@" || shift ;; + --disable-documentation) enable_documentation=no ;; + --program-prefix) read_arg programprefix "$@" || shift ;; + --exec-prefix) read_arg execprefix "$@" || shift ;; + --bindir) read_arg bindir "$@" || shift ;; + --includedir) read_arg includedir "$@" || shift ;; + --libexecdir) read_arg libexecdir "$@" || shift ;; + --localstatedir) read_arg localstatedir "$@" || shift ;; + --sharedstatedir) read_arg sharedstatedir "$@" || shift ;; + --infodir) read_arg infodir "$@" || shift ;; + --systemdsystemunitdir) read_arg systemdsystemunitdir "$@" || shift ;; + --bashcompletiondir) read_arg bashcompletiondir "$@" || shift ;; + --enable-dracut-cpio) enable_dracut_cpio=yes ;; + *) echo "Ignoring unknown option '$1'" ;; + esac + shift +done + +if ! ${PKG_CONFIG} --exists --print-errors " libkmod >= 23 "; then + echo "dracut needs pkg-config and libkmod >= 23." >&2 + exit 1 +fi + +cat << EOF > conftest.c +#include <fts.h> +int main() { + return 0; +} +EOF + +# shellcheck disable=SC2086 +${CC} $CFLAGS $LDFLAGS conftest.c > /dev/null 2>&1 +ret=$? +rm -f conftest.c a.out + +# musl doesn't have fts.h included +if test $ret -ne 0; then + echo "dracut needs fts development files." >&2 + exit 1 +fi + +cat << EOF > conftest.c +#include <fts.h> +int main(void) { + fts_open(0, 0, 0); + return 0; +} +EOF + +found=no +for lib in "-lc" "-lfts"; do + # shellcheck disable=SC2086 + ${CC} $CFLAGS $LDFLAGS conftest.c -Wl,$lib > /dev/null 2>&1 + ret=$? + if test $ret -eq 0; then + FTS_LIBS="$lib" + found=yes + break + fi +done +rm -f conftest.c a.out + +if test $found = no; then + echo "dracut couldn't find usable fts library" >&2 + exit 1 +fi + +cat << EOF > conftest.c +#include <stdio.h> +#include <unistd.h> +#include <sys/syscall.h> + +#ifndef SYS_gettid +#error "SYS_gettid unavailable on this system" +#endif + +#define gettid() ((pid_t) syscall(SYS_gettid)) + +int main(void) { + return getpid() == gettid() ? 0 : -1; +} +EOF + +# shellcheck disable=SC2086 +${CC} $CFLAGS $LDFLAGS conftest.c > /dev/null 2>&1 +ret=$? +rm -f conftest.c a.out + +if test $ret -ne 0; then + echo "dracut needs SYS_gettid support." >&2 + exit 1 +fi + +if test "$enable_dracut_cpio" = "yes"; then + cargo --version > /dev/null + ret=$? + if test $ret -ne 0; then + echo "dracut couldn't find cargo for dracut-cpio build" + exit 1 + fi +fi + +cat > Makefile.inc.$$ << EOF +prefix ?= ${prefix} +libdir ?= ${libdir:-${prefix}/lib} +datadir ?= ${datadir:-${prefix}/share} +sysconfdir ?= ${sysconfdir:-${prefix}/etc} +sbindir ?= ${sbindir:-${prefix}/sbin} +mandir ?= ${mandir:-${prefix}/share/man} +enable_documentation ?= ${enable_documentation:-yes} +enable_dracut_cpio ?= ${enable_dracut_cpio} +bindir ?= ${bindir:-${prefix}/bin} +KMOD_CFLAGS ?= $(${PKG_CONFIG} --cflags " libkmod >= 23 ") +KMOD_LIBS ?= $(${PKG_CONFIG} --libs " libkmod >= 23 ") +FTS_LIBS ?= ${FTS_LIBS} +EOF + +{ + [[ $programprefix ]] && echo "programprefix ?= ${programprefix}" + [[ $execprefix ]] && echo "execprefix ?= ${execprefix}" + [[ $includedir ]] && echo "includedir ?= ${includedir}" + [[ $libexecdir ]] && echo "libexecdir ?= ${libexecdir}" + [[ $localstatedir ]] && echo "localstatedir ?= ${localstatedir}" + [[ $sharedstatedir ]] && echo "sharedstatedir ?= ${sharedstatedir}" + [[ $infodir ]] && echo "infodir ?= ${infodir}" + [[ $systemdsystemunitdir ]] && echo "systemdsystemunitdir ?= ${systemdsystemunitdir}" + [[ $bashcompletiondir ]] && echo "bashcompletiondir ?= ${bashcompletiondir}" +} >> Makefile.inc.$$ + +mv Makefile.inc.$$ Makefile.inc |