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asterisk/acinclude.m4
Kevin P. Fleming a40b78b885 Merged revisions 48528 via svnmerge from 
https://origsvn.digium.com/svn/asterisk/branches/1.4

........
r48528 | kpfleming | 2006-12-16 15:34:41 -0600 (Sat, 16 Dec 2006) | 2 lines

use m4 quoting for AC_MSG_NOTICE calls, to keep these calls from thinking they have multiple arguments

........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@48529 65c4cc65-6c06-0410-ace0-fbb531ad65f3
2006-12-16 21:38:10 +00:00

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# AST_GCC_ATTRIBUTE([attribute name])
AC_DEFUN([AST_GCC_ATTRIBUTE],
[
AC_MSG_CHECKING(for compiler 'attribute $1' support)
AC_COMPILE_IFELSE(
AC_LANG_PROGRAM([static int __attribute__(($1)) test(void) {}],
[]),
AC_MSG_RESULT(yes)
AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]),
AC_MSG_RESULT(no))
])
# AST_EXT_LIB_SETUP([package symbol name], [package friendly name], [package option name], [additional help text])
AC_DEFUN([AST_EXT_LIB_SETUP],
[
$1_DESCRIP="$2"
$1_OPTION="$3"
AC_ARG_WITH([$3], AC_HELP_STRING([--with-$3=PATH],[use $2 files in PATH $4]),[
case ${withval} in
n|no)
USE_$1=no
;;
y|ye|yes)
ac_mandatory_list="${ac_mandatory_list} $1"
;;
*)
$1_DIR="${withval}"
ac_mandatory_list="${ac_mandatory_list} $1"
;;
esac
])
PBX_$1=0
AC_SUBST([$1_LIB])
AC_SUBST([$1_INCLUDE])
AC_SUBST([PBX_$1])
])
# Check whether any of the mandatory modules are not present, and
# print error messages in case.
AC_DEFUN([AST_CHECK_MANDATORY],
[
AC_MSG_CHECKING([for mandatory modules: ${ac_mandatory_list}])
err=0;
for i in ${ac_mandatory_list}; do
eval "a=\${PBX_$i}"
if test "x${a}" = "x1" ; then continue; fi
if test ${err} = "0" ; then AC_MSG_RESULT(fail) ; fi
AC_MSG_RESULT()
eval "a=\${${i}_OPTION}"
AC_MSG_NOTICE([***])
AC_MSG_NOTICE([*** The $i installation appears to be missing or broken.])
AC_MSG_NOTICE([*** Either correct the installation, or run configure])
AC_MSG_NOTICE([*** including --without-${a}.])
err=1
done
if test $err = 1 ; then exit 1; fi
AC_MSG_RESULT(ok)
])
#-- The following two tests are only performed if PBX_$1 != 1,
# so you can use multiple tests and stop at the first matching one.
# On success, set PBX_$1 = 1, and also #define HAVE_$1 1
# and #define HAVE_$1_VERSION ${last_argument} so you can tell which
# test succeeded.
# They should be called after AST_EXT_LIB_SETUP($1, ...)
# Check if a given macro is defined in a certain header.
# AST_C_DEFINE_CHECK([package symbol name], [macro name], [header file], [version])
AC_DEFUN([AST_C_DEFINE_CHECK],
[
if test "x${PBX_$1}" != "x1" -a "${USE_$1}" != "no"; then
AC_MSG_CHECKING([for $2 in $3])
saved_cppflags="${CPPFLAGS}"
if test "x${$1_DIR}" != "x"; then
$1_INCLUDE= "-I${$1_DIR}/include"
fi
CPPFLAGS="${CPPFLAGS} ${$1_INCLUDE}"
AC_COMPILE_IFELSE(
[ AC_LANG_PROGRAM( [#include <$3>], [int foo = $2;]) ],
[ AC_MSG_RESULT(yes)
PBX_$1=1
AC_DEFINE([HAVE_$1], 1, [Define if your system has the $1 headers.])
AC_DEFINE([HAVE_$1_VERSION], $4, [Define $1 headers version])
],
[ AC_MSG_RESULT(no) ]
)
CPPFLAGS="${saved_cppflags}"
fi
])
# Check for existence of a given package ($1), either looking up a function
# in a library, or, if no function is supplied, only check for the
# existence of the header files.
# AST_EXT_LIB_CHECK([package symbol name], [package library name], [function to check], [package header], [additional LIB data], [version])
AC_DEFUN([AST_EXT_LIB_CHECK],
[
if test "x${PBX_$1}" != "x1" -a "${USE_$1}" != "no"; then
pbxlibdir=""
if test "x${$1_DIR}" != "x"; then
if test -d ${$1_DIR}/lib; then
pbxlibdir="-L${$1_DIR}/lib"
else
pbxlibdir="-L${$1_DIR}"
fi
fi
pbxfuncname="$3"
if test "x${pbxfuncname}" = "x" ; then # empty lib, assume only headers
AST_$1_FOUND=yes
else
AC_CHECK_LIB([$2], [${pbxfuncname}], [AST_$1_FOUND=yes], [AST_$1_FOUND=no], ${pbxlibdir} $5)
fi
if test "${AST_$1_FOUND}" = "yes"; then
$1_LIB="-l$2 $5"
$1_HEADER_FOUND="1"
if test "x${$1_DIR}" != "x"; then
$1_LIB="${pbxlibdir} ${$1_LIB}"
$1_INCLUDE="-I${$1_DIR}/include"
if test "x$4" != "x" ; then
AC_CHECK_HEADER([${$1_DIR}/include/$4], [$1_HEADER_FOUND=1], [$1_HEADER_FOUND=0] )
fi
else
if test "x$4" != "x" ; then
AC_CHECK_HEADER([$4], [$1_HEADER_FOUND=1], [$1_HEADER_FOUND=0] )
fi
fi
if test "x${$1_HEADER_FOUND}" = "x0" ; then
$1_LIB=""
$1_INCLUDE=""
else
if test "x${pbxfuncname}" = "x" ; then # only checking headers -> no library
$1_LIB=""
fi
PBX_$1=1
# XXX don't know how to evaluate the description (third argument) in AC_DEFINE_UNQUOTED
AC_DEFINE_UNQUOTED([HAVE_$1], 1, [Define this to indicate the ${$1_DESCRIP} library])
AC_DEFINE_UNQUOTED([HAVE_$1_VERSION], [$6], [Define to indicate the ${$1_DESCRIP} library version])
fi
fi
fi
])
AC_DEFUN(
[AST_CHECK_GNU_MAKE], [AC_CACHE_CHECK(for GNU make, GNU_MAKE,
GNU_MAKE='Not Found' ;
GNU_MAKE_VERSION_MAJOR=0 ;
GNU_MAKE_VERSION_MINOR=0 ;
for a in make gmake gnumake ; do
if test -z "$a" ; then continue ; fi ;
if ( sh -c "$a --version" 2> /dev/null | grep GNU 2>&1 > /dev/null ) ; then
GNU_MAKE=$a ;
GNU_MAKE_VERSION_MAJOR=`$GNU_MAKE --version | grep "GNU Make" | cut -f3 -d' ' | cut -f1 -d'.'`
GNU_MAKE_VERSION_MINOR=`$GNU_MAKE --version | grep "GNU Make" | cut -f2 -d'.' | cut -c1-2`
break;
fi
done ;
) ;
if test "x$GNU_MAKE" = "xNot Found" ; then
AC_MSG_ERROR( *** Please install GNU make. It is required to build Asterisk!)
exit 1
fi
AC_SUBST([GNU_MAKE])
])
AC_DEFUN(
[AST_CHECK_PWLIB], [
PWLIB_INCDIR=
PWLIB_LIBDIR=
if test "${PWLIBDIR:-unset}" != "unset" ; then
AC_CHECK_FILE(${PWLIBDIR}/version.h, HAS_PWLIB=1, )
fi
if test "${HAS_PWLIB:-unset}" = "unset" ; then
if test "${OPENH323DIR:-unset}" != "unset"; then
AC_CHECK_FILE(${OPENH323DIR}/../pwlib/version.h, HAS_PWLIB=1, )
fi
if test "${HAS_PWLIB:-unset}" != "unset" ; then
PWLIBDIR="${OPENH323DIR}/../pwlib"
else
AC_CHECK_FILE(${HOME}/pwlib/include/ptlib.h, HAS_PWLIB=1, )
if test "${HAS_PWLIB:-unset}" != "unset" ; then
PWLIBDIR="${HOME}/pwlib"
else
AC_CHECK_FILE(/usr/local/include/ptlib.h, HAS_PWLIB=1, )
if test "${HAS_PWLIB:-unset}" != "unset" ; then
AC_PATH_PROG(PTLIB_CONFIG, ptlib-config, , /usr/local/bin)
if test "${PTLIB_CONFIG:-unset}" = "unset" ; then
AC_PATH_PROG(PTLIB_CONFIG, ptlib-config, , /usr/local/share/pwlib/make)
fi
PWLIB_INCDIR="/usr/local/include"
if test "x$LIB64" != "x"; then
PWLIB_LIBDIR="/usr/local/lib64"
else
PWLIB_LIBDIR="/usr/local/lib"
fi
else
AC_CHECK_FILE(/usr/include/ptlib.h, HAS_PWLIB=1, )
if test "${HAS_PWLIB:-unset}" != "unset" ; then
AC_PATH_PROG(PTLIB_CONFIG, ptlib-config, , /usr/share/pwlib/make)
PWLIB_INCDIR="/usr/include"
if test "x$LIB64" != "x"; then
PWLIB_LIBDIR="/usr/lib64"
else
PWLIB_LIBDIR="/usr/lib"
fi
fi
fi
fi
fi
fi
#if test "${HAS_PWLIB:-unset}" = "unset" ; then
# echo "Cannot find pwlib - please install or set PWLIBDIR and try again"
# exit
#fi
if test "${HAS_PWLIB:-unset}" != "unset" ; then
if test "${PWLIBDIR:-unset}" = "unset" ; then
if test "${PTLIB_CONFIG:-unset}" != "unset" ; then
PWLIBDIR=`$PTLIB_CONFIG --prefix`
else
echo "Cannot find ptlib-config - please install and try again"
exit
fi
fi
if test "x$PWLIBDIR" = "x/usr" -o "x$PWLIBDIR" = "x/usr/"; then
PWLIBDIR="/usr/share/pwlib"
PWLIB_INCDIR="/usr/include"
if test "x$LIB64" != "x"; then
PWLIB_LIBDIR="/usr/lib64"
else
PWLIB_LIBDIR="/usr/lib"
fi
fi
if test "x$PWLIBDIR" = "x/usr/local" -o "x$PWLIBDIR" = "x/usr/"; then
PWLIBDIR="/usr/local/share/pwlib"
PWLIB_INCDIR="/usr/local/include"
if test "x$LIB64" != "x"; then
PWLIB_LIBDIR="/usr/local/lib64"
else
PWLIB_LIBDIR="/usr/local/lib"
fi
fi
if test "${PWLIB_INCDIR:-unset}" = "unset"; then
PWLIB_INCDIR="${PWLIBDIR}/include"
fi
if test "${PWLIB_LIBDIR:-unset}" = "unset"; then
PWLIB_LIBDIR="${PWLIBDIR}/lib"
fi
AC_SUBST([PWLIBDIR])
AC_SUBST([PWLIB_INCDIR])
AC_SUBST([PWLIB_LIBDIR])
fi
])
AC_DEFUN(
[AST_CHECK_OPENH323_PLATFORM], [
PWLIB_OSTYPE=
case "$host_os" in
linux*) PWLIB_OSTYPE=linux ;
;;
freebsd* ) PWLIB_OSTYPE=FreeBSD ;
;;
openbsd* ) PWLIB_OSTYPE=OpenBSD ;
ENDLDLIBS="-lossaudio" ;
;;
netbsd* ) PWLIB_OSTYPE=NetBSD ;
ENDLDLIBS="-lossaudio" ;
;;
solaris* | sunos* ) PWLIB_OSTYPE=solaris ;
;;
darwin* ) PWLIB_OSTYPE=Darwin ;
;;
beos*) PWLIB_OSTYPE=beos ;
STDCCFLAGS="$STDCCFLAGS -D__BEOS__"
;;
cygwin*) PWLIB_OSTYPE=cygwin ;
;;
mingw*) PWLIB_OSTYPE=mingw ;
STDCCFLAGS="$STDCCFLAGS -mms-bitfields" ;
ENDLDLIBS="-lwinmm -lwsock32 -lsnmpapi -lmpr -lcomdlg32 -lgdi32 -lavicap32" ;
;;
* ) PWLIB_OSTYPE="$host_os" ;
AC_MSG_WARN("OS $PWLIB_OSTYPE not recognized - proceed with caution!") ;
;;
esac
PWLIB_MACHTYPE=
case "$host_cpu" in
x86 | i686 | i586 | i486 | i386 ) PWLIB_MACHTYPE=x86
;;
x86_64) PWLIB_MACHTYPE=x86_64 ;
P_64BIT=1 ;
LIB64=1 ;
;;
alpha | alphaev56 | alphaev6 | alphaev67 | alphaev7) PWLIB_MACHTYPE=alpha ;
P_64BIT=1 ;
;;
sparc ) PWLIB_MACHTYPE=sparc ;
;;
powerpc ) PWLIB_MACHTYPE=ppc ;
;;
ppc ) PWLIB_MACHTYPE=ppc ;
;;
powerpc64 ) PWLIB_MACHTYPE=ppc64 ;
P_64BIT=1 ;
LIB64=1 ;
;;
ppc64 ) PWLIB_MACHTYPE=ppc64 ;
P_64BIT=1 ;
LIB64=1 ;
;;
ia64) PWLIB_MACHTYPE=ia64 ;
P_64BIT=1 ;
;;
s390x) PWLIB_MACHTYPE=s390x ;
P_64BIT=1 ;
LIB64=1 ;
;;
s390) PWLIB_MACHTYPE=s390 ;
;;
* ) PWLIB_MACHTYPE="$host_cpu";
AC_MSG_WARN("CPU $PWLIB_MACHTYPE not recognized - proceed with caution!") ;;
esac
PWLIB_PLATFORM="${PWLIB_OSTYPE}_${PWLIB_MACHTYPE}"
AC_SUBST([PWLIB_PLATFORM])
])
AC_DEFUN(
[AST_CHECK_OPENH323], [
OPENH323_INCDIR=
OPENH323_LIBDIR=
if test "${OPENH323DIR:-unset}" != "unset" ; then
AC_CHECK_FILE(${OPENH323DIR}/version.h, HAS_OPENH323=1, )
fi
if test "${HAS_OPENH323:-unset}" = "unset" ; then
AC_CHECK_FILE(${PWLIBDIR}/../openh323/version.h, OPENH323DIR="${PWLIBDIR}/../openh323"; HAS_OPENH323=1, )
if test "${HAS_OPENH323:-unset}" != "unset" ; then
OPENH323DIR="${PWLIBDIR}/../openh323"
AC_CHECK_FILE(${OPENH323DIR}/include/h323.h, , OPENH323_INCDIR="${PWLIB_INCDIR}/openh323"; OPENH323_LIBDIR="${PWLIB_LIBDIR}")
else
AC_CHECK_FILE(${HOME}/openh323/include/h323.h, HAS_OPENH323=1, )
if test "${HAS_OPENH323:-unset}" != "unset" ; then
OPENH323DIR="${HOME}/openh323"
else
AC_CHECK_FILE(/usr/local/include/openh323/h323.h, HAS_OPENH323=1, )
if test "${HAS_OPENH323:-unset}" != "unset" ; then
OPENH323DIR="/usr/local/share/openh323"
OPENH323_INCDIR="/usr/local/include/openh323"
if test "x$LIB64" != "x"; then
OPENH323_LIBDIR="/usr/local/lib64"
else
OPENH323_LIBDIR="/usr/local/lib"
fi
else
AC_CHECK_FILE(/usr/include/openh323/h323.h, HAS_OPENH323=1, )
if test "${HAS_OPENH323:-unset}" != "unset" ; then
OPENH323DIR="/usr/share/openh323"
OPENH323_INCDIR="/usr/include/openh323"
if test "x$LIB64" != "x"; then
OPENH323_LIBDIR="/usr/lib64"
else
OPENH323_LIBDIR="/usr/lib"
fi
fi
fi
fi
fi
fi
if test "${HAS_OPENH323:-unset}" != "unset" ; then
if test "${OPENH323_INCDIR:-unset}" = "unset"; then
OPENH323_INCDIR="${OPENH323DIR}/include"
fi
if test "${OPENH323_LIBDIR:-unset}" = "unset"; then
OPENH323_LIBDIR="${OPENH323DIR}/lib"
fi
AC_SUBST([OPENH323DIR])
AC_SUBST([OPENH323_INCDIR])
AC_SUBST([OPENH323_LIBDIR])
fi
])
AC_DEFUN(
[AST_CHECK_PWLIB_VERSION], [
if test "${HAS_$2:-unset}" != "unset"; then
$2_VERSION=`grep "$2_VERSION" ${$2_INCDIR}/$3 | cut -f2 -d ' ' | sed -e 's/"//g'`
$2_MAJOR_VERSION=`echo ${$2_VERSION} | cut -f1 -d.`
$2_MINOR_VERSION=`echo ${$2_VERSION} | cut -f2 -d.`
$2_BUILD_NUMBER=`echo ${$2_VERSION} | cut -f3 -d.`
let $2_VER=${$2_MAJOR_VERSION}*10000+${$2_MINOR_VERSION}*100+${$2_BUILD_NUMBER}
let $2_REQ=$4*10000+$5*100+$6
AC_MSG_CHECKING(if $1 version ${$2_VERSION} is compatible with chan_h323)
if test ${$2_VER} -lt ${$2_REQ}; then
AC_MSG_RESULT(no)
unset HAS_$2
else
AC_MSG_RESULT(yes)
fi
fi
])
AC_DEFUN(
[AST_CHECK_PWLIB_BUILD], [
if test "${HAS_$2:-unset}" != "unset"; then
AC_MSG_CHECKING($1 installation validity)
saved_cppflags="${CPPFLAGS}"
saved_libs="${LIBS}"
LIBS="${LIBS} -L${$2_LIBDIR} -l${PLATFORM_$2} $7"
CPPFLAGS="${CPPFLAGS} -I${$2_INCDIR} $6"
AC_LANG_PUSH([C++])
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([$4],[$5])],
[ AC_MSG_RESULT(yes)
ac_cv_lib_$2="yes"
],
[ AC_MSG_RESULT(no)
ac_cv_lib_$2="no"
]
)
AC_LANG_POP([C++])
LIBS="${saved_libs}"
CPPFLAGS="${saved_cppflags}"
if test "${ac_cv_lib_$2}" = "yes"; then
if test "${$2_LIBDIR}" != "" -a "${$2_LIBDIR}" != "/usr/lib"; then
$2_LIB="-L${$2_LIBDIR} -l${PLATFORM_$2}"
else
$2_LIB="-l${PLATFORM_$2}"
fi
if test "${$2_INCDIR}" != "" -a "${$2_INCDIR}" != "/usr/include"; then
$2_INCLUDE="-I${$2_INCDIR}"
fi
PBX_$2=1
AC_DEFINE([HAVE_$2], 1, [$3])
fi
fi
])
AC_DEFUN(
[AST_CHECK_OPENH323_BUILD], [
if test "${HAS_OPENH323:-unset}" != "unset"; then
AC_MSG_CHECKING(OpenH323 build option)
OPENH323_SUFFIX=
files=`ls -l ${OPENH323_LIBDIR}/libh323_${PWLIB_PLATFORM}_*.so*`
libfile=
if test -n "$files"; then
for f in $files; do
if test -f $f -a ! -L $f; then
libfile=`basename $f`
break;
fi
done
fi
if test "${libfile:-unset}" != "unset"; then
OPENH323_SUFFIX=`eval "echo ${libfile} | sed -e 's/libh323_${PWLIB_PLATFORM}_\(@<:@^.@:>@*\)\..*/\1/'"`
fi
case "${OPENH323_SUFFIX}" in
n)
OPENH323_BUILD="notrace";;
r)
OPENH323_BUILD="opt";;
d)
OPENH323_BUILD="debug";;
*)
OPENH323_BUILD="notrace";;
esac
AC_MSG_RESULT(${OPENH323_BUILD})
AC_SUBST([OPENH323_SUFFIX])
AC_SUBST([OPENH323_BUILD])
fi
])
# AST_FUNC_FORK
# -------------
AN_FUNCTION([fork], [AST_FUNC_FORK])
AN_FUNCTION([vfork], [AST_FUNC_FORK])
AC_DEFUN([AST_FUNC_FORK],
[AC_REQUIRE([AC_TYPE_PID_T])dnl
AC_CHECK_HEADERS(vfork.h)
AC_CHECK_FUNCS(fork vfork)
if test "x$ac_cv_func_fork" = xyes; then
_AST_FUNC_FORK
else
ac_cv_func_fork_works=$ac_cv_func_fork
fi
if test "x$ac_cv_func_fork_works" = xcross; then
case $host in
*-*-amigaos* | *-*-msdosdjgpp* | *-*-uclinux* )
# Override, as these systems have only a dummy fork() stub
ac_cv_func_fork_works=no
;;
*)
ac_cv_func_fork_works=yes
;;
esac
AC_MSG_WARN([result $ac_cv_func_fork_works guessed because of cross compilation])
fi
ac_cv_func_vfork_works=$ac_cv_func_vfork
if test "x$ac_cv_func_vfork" = xyes; then
_AC_FUNC_VFORK
fi;
if test "x$ac_cv_func_fork_works" = xcross; then
ac_cv_func_vfork_works=$ac_cv_func_vfork
AC_MSG_WARN([result $ac_cv_func_vfork_works guessed because of cross compilation])
fi
if test "x$ac_cv_func_vfork_works" = xyes; then
AC_DEFINE(HAVE_WORKING_VFORK, 1, [Define to 1 if `vfork' works.])
else
AC_DEFINE(vfork, fork, [Define as `fork' if `vfork' does not work.])
fi
if test "x$ac_cv_func_fork_works" = xyes; then
AC_DEFINE(HAVE_WORKING_FORK, 1, [Define to 1 if `fork' works.])
fi
])# AST_FUNC_FORK
# _AST_FUNC_FORK
# -------------
AC_DEFUN([_AST_FUNC_FORK],
[AC_CACHE_CHECK(for working fork, ac_cv_func_fork_works,
[AC_RUN_IFELSE(
[AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
[
/* By Ruediger Kuhlmann. */
return fork () < 0;
])],
[ac_cv_func_fork_works=yes],
[ac_cv_func_fork_works=no],
[ac_cv_func_fork_works=cross])])]
)# _AST_FUNC_FORK
# AST_PROG_LD
# ----------
# find the pathname to the GNU or non-GNU linker
AC_DEFUN([AST_PROG_LD],
[AC_ARG_WITH([gnu-ld],
[AC_HELP_STRING([--with-gnu-ld],
[assume the C compiler uses GNU ld @<:@default=no@:>@])],
[test "$withval" = no || with_gnu_ld=yes],
[with_gnu_ld=no])
AC_REQUIRE([AST_PROG_SED])dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
AC_REQUIRE([AC_CANONICAL_BUILD])dnl
ac_prog=ld
if test "$GCC" = yes; then
# Check if gcc -print-prog-name=ld gives a path.
AC_MSG_CHECKING([for ld used by $CC])
case $host in
*-*-mingw*)
# gcc leaves a trailing carriage return which upsets mingw
ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
*)
ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
esac
case $ac_prog in
# Accept absolute paths.
[[\\/]]* | ?:[[\\/]]*)
re_direlt='/[[^/]][[^/]]*/\.\./'
# Canonicalize the pathname of ld
ac_prog=`echo $ac_prog| $SED 's%\\\\%/%g'`
while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do
ac_prog=`echo $ac_prog| $SED "s%$re_direlt%/%"`
done
test -z "$LD" && LD="$ac_prog"
;;
"")
# If it fails, then pretend we aren't using GCC.
ac_prog=ld
;;
*)
# If it is relative, then search for the first ld in PATH.
with_gnu_ld=unknown
;;
esac
elif test "$with_gnu_ld" = yes; then
AC_MSG_CHECKING([for GNU ld])
else
AC_MSG_CHECKING([for non-GNU ld])
fi
AC_CACHE_VAL(lt_cv_path_LD,
[if test -z "$LD"; then
lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
for ac_dir in $PATH; do
IFS="$lt_save_ifs"
test -z "$ac_dir" && ac_dir=.
if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
lt_cv_path_LD="$ac_dir/$ac_prog"
# Check to see if the program is GNU ld. I'd rather use --version,
# but apparently some variants of GNU ld only accept -v.
# Break only if it was the GNU/non-GNU ld that we prefer.
case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
*GNU* | *'with BFD'*)
test "$with_gnu_ld" != no && break
;;
*)
test "$with_gnu_ld" != yes && break
;;
esac
fi
done
IFS="$lt_save_ifs"
else
lt_cv_path_LD="$LD" # Let the user override the test with a path.
fi])
LD="$lt_cv_path_LD"
if test -n "$LD"; then
AC_MSG_RESULT($LD)
else
AC_MSG_RESULT(no)
fi
test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
AST_PROG_LD_GNU
])# AST_PROG_LD
# AST_PROG_LD_GNU
# --------------
AC_DEFUN([AST_PROG_LD_GNU],
[AC_REQUIRE([AST_PROG_EGREP])dnl
AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
[# I'd rather use --version here, but apparently some GNU lds only accept -v.
case `$LD -v 2>&1 </dev/null` in
*GNU* | *'with BFD'*)
lt_cv_prog_gnu_ld=yes
;;
*)
lt_cv_prog_gnu_ld=no
;;
esac])
with_gnu_ld=$lt_cv_prog_gnu_ld
])# AST_PROG_LD_GNU
# AST_PROG_EGREP
# -------------
m4_ifndef([AST_PROG_EGREP], [AC_DEFUN([AST_PROG_EGREP],
[AC_CACHE_CHECK([for egrep], [ac_cv_prog_egrep],
[if echo a | (grep -E '(a|b)') >/dev/null 2>&1
then ac_cv_prog_egrep='grep -E'
else ac_cv_prog_egrep='egrep'
fi])
EGREP=$ac_cv_prog_egrep
AC_SUBST([EGREP])
])]) # AST_PROG_EGREP
# AST_PROG_SED
# -----------
# Check for a fully functional sed program that truncates
# as few characters as possible. Prefer GNU sed if found.
AC_DEFUN([AST_PROG_SED],
[AC_CACHE_CHECK([for a sed that does not truncate output], ac_cv_path_SED,
[dnl ac_script should not contain more than 99 commands (for HP-UX sed),
dnl but more than about 7000 bytes, to catch a limit in Solaris 8 /usr/ucb/sed.
ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
for ac_i in 1 2 3 4 5 6 7; do
ac_script="$ac_script$as_nl$ac_script"
done
echo "$ac_script" | sed 99q >conftest.sed
$as_unset ac_script || ac_script=
_AC_PATH_PROG_FEATURE_CHECK(SED, [sed gsed],
[_AC_FEATURE_CHECK_LENGTH([ac_path_SED], [ac_cv_path_SED],
["$ac_path_SED" -f conftest.sed])])])
SED="$ac_cv_path_SED"
AC_SUBST([SED])dnl
rm -f conftest.sed
])# AST_PROG_SED
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