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dnl
dnl configure.ac for mkelfImage
dnl
dnl
dnl ---Required
AC_INIT(Makefile.conf.in)
AC_CONFIG_AUX_DIR(./config)
dnl -- Compilation platform configuration
AC_CANONICAL_HOST
dnl Currentl AC_CANONICAL_HOST is sufficient for my needs
dnl as there are only a small number of targets that kexec
dnl can support on a given host system. If it stops making
dnl sense compile support for all possible targets a given
dnl host can support AC_CANONICAL_TARGET may help
dnl AC_CANONICAL_TARGET
dnl Compute host cpu
case $host_cpu in
i?86 )
host_cpu="i386"
;;
powerpc )
host_cpu="ppc"
;;
powerpc64 )
host_cpu="ppc64"
;;
s390x )
host_cpu="s390"
;;
* )
host_cpu="$host_cpu"
;;
esac
case $host_cpu in
i386|ppc|x86_64|alpha|ppc64|ia64|s390)
;;
* )
AC_MSG_ERROR([ unsupported architecture $host_cpu])
;;
esac
ARCH=$host_cpu
dnl ---Options
OBJDIR=`pwd`/objdir
if test "${host_alias}" ; then
OBJDIR="$OBJDIR-${host_alias}"
fi
EXTRA_CFLAGS='-Wall -g -fno-strict-aliasing $(CPPFLAGS) $(EXTRA_CPPFLAGS)'
BUILD_CFLAGS='-O2 -Wall $(CPPFLAGS)'
# Check whether ppc64. Add -m64 for building 64-bit binary
# Add -mcall-aixdesc to generate dot-symbols as in gcc 3.3.3
if test "$ARCH" = ppc64; then
EXTRA_CFLAGS="$EXTRA_CFLAGS -m64 -mcall-aixdesc"
fi;
AC_ARG_WITH([objdir], AC_HELP_STRING([--with-objdir=<dir>],[select directory for object files]),
[ OBJDIR="$withval" ], [ OBJDIR="$OBJDIR" ])
AC_ARG_WITH([gamecube], AC_HELP_STRING([--with-gamecube],[enable gamecube support]),
[ EXTRA_CFLAGS="$EXTRA_CFLAGS -DCONFIG_GAMECUBE=1" ])
AC_ARG_WITH([zlib], AC_HELP_STRING([--without-zlib],[disable gamecube support]),
[ with_zlib="$withval"], [ with_zlib=yes ] )
dnl ---Programs
dnl To specify a different compiler, just 'export CC=/path/to/compiler'
AC_PROG_CC
if test "${build}" != "${host}" ; then
BUILD_CC=${CC_FOR_BUILD-gcc}
else
BUILD_CC="\$(CC)"
fi
dnl Find the compiler tool chain
AC_PROG_CPP
AC_CHECK_TOOL([LD], ld, "no", $PATH)
AC_CHECK_TOOL([AS], as, "no", $PATH)
AC_CHECK_TOOL([OBJCOPY], objcopy, "no", $PATH)
AC_CHECK_TOOL([AR], ar, "", $PATH)
dnl Find the helper functions
AC_PROG_INSTALL
AC_CHECK_PROG([MKDIR], mkdir, mkdir, "no", [$PATH])
AC_CHECK_PROG([RM], rm, rm, "no", [$PATH])
AC_CHECK_PROG([CP], cp, cp, "no", [$PATH])
AC_CHECK_PROG([LN], ln, ln, "no", [$PATH])
AC_CHECK_PROG([TAR], tar, tar, "no", [$PATH])
AC_CHECK_PROG([RPMBUILD], rpmbuild, rpmbuild, "no", [$PATH])
AC_CHECK_PROG([SED], sed, sed, "no", [$PATH])
AC_CHECK_PROG([FIND], find, find, "no", [$PATH])
AC_CHECK_PROG([XARGS], xargs, xargs, "no", [$PATH])
AC_CHECK_PROG([DIRNAME], dirname, dirname, "no", [$PATH])
dnl See if I have a usable copy of zlib available
if test "$with_zlib" = yes ; then
AC_CHECK_HEADER(zlib.h, AC_CHECK_LIB(z, inflateInit_, [AC_DEFINE(HAVE_ZLIB_H, 1) LIBS="$LIBS -lz"]))
fi
dnl ---Sanity checks
if test "$CC" = "no"; then AC_MSG_ERROR([cc not found]) fi
if test "$CPP" = "no"; then AC_MSG_ERROR([cpp not found]) fi
if test "$LD" = "no"; then AC_MSG_ERROR([ld not found]) fi
if test "$AS" = "no"; then AC_MSG_ERROR([as not found]) fi
if test "$OBJCOPY" = "no"; then AC_MSG_ERROR([objcopy not found]) fi
if test "$AR" = "no"; then AC_MSG_ERROR([ar not found]) fi
if test "$MKDIR" = "no"; then AC_MSG_ERROR([ mkdir not found]) fi
if test "$RM" = "no"; then AC_MSG_ERROR([ rm not found]) fi
if test "$CP" = "no"; then AC_MSG_ERROR([ cp not found]) fi
if test "$LN" = "no"; then AC_MSG_ERROR([ ln not found]) fi
if test "$TAR" = "no"; then AC_MSG_ERROR([ tar not found]) fi
if test "$RPM" = "no"; then AC_MSG_ERROR([ rpm not found]) fi
if test "$SED" = "no"; then AC_MSG_ERROR([ sed not found]) fi
if test "$FIND" = "no"; then AC_MSG_ERROR([ find not found]) fi
if test "$XARGS" = "no"; then AC_MSG_ERROR([ xargs not found]) fi
if test "$DIRNAME" = "no"; then AC_MSG_ERROR([ dirname not found]) fi
dnl ---Output variables...
AC_SUBST([BUILD_CC])
AC_SUBST([BUILD_CFLAGS])
AC_SUBST([EXTRA_CFLAGS])
AC_SUBST([ARCH])
AC_SUBST([OBJDIR])
AC_SUBST([INSTALL])
dnl ---Output
AC_OUTPUT([Makefile.conf])
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