137 lines
5.6 KiB
Plaintext
137 lines
5.6 KiB
Plaintext
## -*- Autoconf -*-
|
|
|
|
# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
|
|
# Free Software Foundation, Inc.
|
|
#
|
|
# This file is free software; the Free Software Foundation
|
|
# gives unlimited permission to copy and/or distribute it,
|
|
# with or without modifications, as long as this notice is preserved.
|
|
|
|
# serial 8
|
|
|
|
# Based on depend.m4 from automake 1.9, modified for standalone use in
|
|
# an environment where GNU make is required.
|
|
|
|
# ZW_PROG_COMPILER_DEPENDENCIES
|
|
# -----------------------------
|
|
# Variant of _AM_DEPENDENCIES which just does the dependency probe and
|
|
# sets fooDEPMODE accordingly. Cache-variable compatible with
|
|
# original; not side-effect compatible. As the users of this macro
|
|
# may require accurate dependencies for correct builds, it does *not*
|
|
# honor --disable-dependency-checking, and failure to detect a usable
|
|
# method is an error. depcomp is assumed to be located in
|
|
# $ac_aux_dir.
|
|
#
|
|
# FIXME: Should use the Autoconf 2.5x language-selection mechanism.
|
|
|
|
AC_DEFUN([ZW_PROG_COMPILER_DEPENDENCIES],
|
|
[ifelse([$1], CC, [depcc="$CC" am_compiler_list=],
|
|
[$1], CXX, [depcc="$CXX" am_compiler_list=],
|
|
[$1], OBJC, [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
|
|
[$1], GCJ, [depcc="$GCJ" am_compiler_list='gcc3 gcc'],
|
|
[depcc="$$1" am_compiler_list=])
|
|
|
|
am_depcomp=$ac_aux_dir/depcomp
|
|
AC_CACHE_CHECK([dependency style of $depcc],
|
|
[am_cv_$1_dependencies_compiler_type],
|
|
[if test -f "$am_depcomp"; then
|
|
# We make a subdir and do the tests there. Otherwise we can end up
|
|
# making bogus files that we don't know about and never remove. For
|
|
# instance it was reported that on HP-UX the gcc test will end up
|
|
# making a dummy file named `D' -- because `-MD' means `put the output
|
|
# in D'.
|
|
mkdir conftest.dir
|
|
# Copy depcomp to subdir because otherwise we won't find it if we're
|
|
# using a relative directory.
|
|
cp "$am_depcomp" conftest.dir
|
|
cd conftest.dir
|
|
# We will build objects and dependencies in a subdirectory because
|
|
# it helps to detect inapplicable dependency modes. For instance
|
|
# both Tru64's cc and ICC support -MD to output dependencies as a
|
|
# side effect of compilation, but ICC will put the dependencies in
|
|
# the current directory while Tru64 will put them in the object
|
|
# directory.
|
|
mkdir sub
|
|
|
|
am_cv_$1_dependencies_compiler_type=none
|
|
if test "$am_compiler_list" = ""; then
|
|
am_compiler_list=`sed -n ['s/^\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
|
|
fi
|
|
for depmode in $am_compiler_list; do
|
|
if test $depmode = none; then break; fi
|
|
|
|
_AS_ECHO([$as_me:$LINENO: trying $depmode], AS_MESSAGE_LOG_FD)
|
|
# Setup a source with many dependencies, because some compilers
|
|
# like to wrap large dependency lists on column 80 (with \), and
|
|
# we should not choose a depcomp mode which is confused by this.
|
|
#
|
|
# We need to recreate these files for each test, as the compiler may
|
|
# overwrite some of them when testing with obscure command lines.
|
|
# This happens at least with the AIX C compiler.
|
|
: > sub/conftest.c
|
|
for i in 1 2 3 4 5 6; do
|
|
echo '#include "conftst'$i'.h"' >> sub/conftest.c
|
|
# Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
|
|
# Solaris 8's {/usr,}/bin/sh.
|
|
touch sub/conftst$i.h
|
|
done
|
|
echo "include sub/conftest.Po" > confmf
|
|
|
|
# We check with `-c' and `-o' for the sake of the "dashmstdout"
|
|
# mode. It turns out that the SunPro C++ compiler does not properly
|
|
# handle `-M -o', and we need to detect this.
|
|
depcmd="depmode=$depmode \
|
|
source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
|
|
depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
|
|
$SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c"
|
|
echo "| $depcmd" | sed -e 's/ */ /g' >&AS_MESSAGE_LOG_FD
|
|
if env $depcmd > conftest.err 2>&1 &&
|
|
grep sub/conftst6.h sub/conftest.Po >>conftest.err 2>&1 &&
|
|
grep sub/conftest.${OBJEXT-o} sub/conftest.Po >>conftest.err 2>&1 &&
|
|
${MAKE-make} -s -f confmf >>conftest.err 2>&1; then
|
|
# icc doesn't choke on unknown options, it will just issue warnings
|
|
# or remarks (even with -Werror). So we grep stderr for any message
|
|
# that says an option was ignored or not supported.
|
|
# When given -MP, icc 7.0 and 7.1 complain thusly:
|
|
# icc: Command line warning: ignoring option '-M'; no argument required
|
|
# The diagnosis changed in icc 8.0:
|
|
# icc: Command line remark: option '-MP' not supported
|
|
if (grep 'ignoring option' conftest.err ||
|
|
grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
|
|
am_cv_$1_dependencies_compiler_type=$depmode
|
|
_AS_ECHO([$as_me:$LINENO: success], AS_MESSAGE_LOG_FD)
|
|
break
|
|
fi
|
|
fi
|
|
_AS_ECHO([$as_me:$LINENO: failure, diagnostics are:], AS_MESSAGE_LOG_FD)
|
|
sed -e 's/^/| /' < conftest.err >&AS_MESSAGE_LOG_FD
|
|
done
|
|
|
|
cd ..
|
|
rm -rf conftest.dir
|
|
else
|
|
am_cv_$1_dependencies_compiler_type=none
|
|
fi
|
|
])
|
|
if test x${am_cv_$1_dependencies_compiler_type-none} = xnone
|
|
then AC_MSG_ERROR([no usable dependency style found])
|
|
else AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
|
|
fi
|
|
])
|
|
|
|
# AM_SET_DEPDIR
|
|
# -------------
|
|
# Choose a directory name for dependency files.
|
|
AC_DEFUN([AM_SET_DEPDIR],
|
|
[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
|
|
AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
|
|
])
|
|
|
|
# ZW_CREATE_DEPDIR
|
|
# ----------------
|
|
# As AM_SET_DEPDIR, but also create the directory at config.status time.
|
|
AC_DEFUN([ZW_CREATE_DEPDIR],
|
|
[AC_REQUIRE([AM_SET_DEPDIR])dnl
|
|
AC_CONFIG_COMMANDS([depdir], [mkdir $DEPDIR], [DEPDIR=$DEPDIR])
|
|
])
|