/
configure.ac
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/
configure.ac
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### configure.ac -*- Autoconf -*-
###
### Process this file with autoconf to produce a configure script.
###
### Copyright (C) 1998-2004 R Core Team
###
### This file is part of R.
###
### R is free software; you can redistribute it and/or modify it under
### the terms of the GNU General Public License as published by the Free
### Software Foundation; either version 2 of the License, or (at your
### option) any later version.
###
### R is distributed in the hope that it will be useful, but WITHOUT ANY
### WARRANTY; without even the implied warranty of MERCHANTABILITY or
### FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
### License for more details.
###
### You should have received a copy of the GNU General Public License
### along with R; if not, you can obtain it via the World Wide Web at
### 'http://www.gnu.org/copyleft/gpl.html', or by writing to the Free
### Software Foundation, 59 Temple Place -- Suite 330, Boston, MA
### 02111-3307, USA.
AC_PREREQ(2.59)
## We want to get the version number from file 'VERSION' (rather than
## specifying the version info in 'configure.ac'. Hence, we need a bit
## of M4 magic. Note that M4 esyscmd has a trailing newline because the
## shell command output has one, hence the patsubst() trick.
m4_define([R_VERSION],
m4_bpatsubst(m4_esyscmd([cat VERSION]),
[\([0-9.]*\)\(\w\|\W\)*],
[\1]))
AC_INIT([R], R_VERSION, [r-bugs@R-project.org], [R])
AC_CONFIG_SRCDIR([src/include/Defn.h])
AC_CONFIG_AUX_DIR([tools])
### * Information on the package.
## Automake initialization.
AM_INIT_AUTOMAKE(AC_PACKAGE_NAME, AC_PACKAGE_VERSION)
## Autoheader initialization.
AH_TOP([#ifndef _CONFIG_H
#define _CONFIG_H])
AH_BOTTOM([
#endif /* not _CONFIG_H */])
### ** Platform.
AC_CANONICAL_HOST
AC_DEFINE_UNQUOTED(R_PLATFORM, "${host}",
[Define this to be the canonical name (cpu-vendor-os) of your system.])
AC_DEFINE_UNQUOTED(R_CPU, "${host_cpu}",
[Define this to be the name of the CPU of your system.])
AC_DEFINE_UNQUOTED(R_VENDOR, "${host_vendor}",
[Define this to be the name of the vendor of your system.])
AC_DEFINE_UNQUOTED(R_OS, "${host_os}",
[Define this to be the name of the OS of your system.])
R_PLATFORM="${host}"
AC_SUBST(R_PLATFORM)
case "${host_os}" in
cygwin*|mingw*|windows*|winnt)
AC_DEFINE(Win32, 1,
[Define according to your operating system type.])
R_OSTYPE="windows"
;;
*)
AC_DEFINE(Unix, 1,
[Define according to your operating system type.])
R_OSTYPE="unix"
;;
esac
AC_SUBST(R_OSTYPE)
### ** Defaults.
cfile="${srcdir}/config.site"
if test -r "${cfile}"; then
echo "loading site script '${cfile}'"
. "${cfile}"
fi
cfile="${HOME}/.Rconfig"
if test -r "${cfile}"; then
echo "loading user script '${cfile}'"
. "${cfile}"
## <FIXME>
## Remove support for ~/.Rconf eventually.
else
cfile="${HOME}/.Rconf"
if test -r "${cfile}"; then
echo "loading user script '${cfile}'"
. "${cfile}"
fi
## </FIXME>
fi
cfile="./config.site"
if test -r "${cfile}"; then
echo "loading build specific script '${cfile}'"
. "${cfile}"
fi
## We provide these defaults so that headers and libraries in
## '/usr/local' are found (by the native tools, mostly).
if test -f "/sw/etc/fink.conf"; then
: ${CPPFLAGS="-I/sw/include -I/usr/local/include"}
: ${LDFLAGS="-L/sw/lib -L/usr/local/lib"}
else
: ${CPPFLAGS="-I/usr/local/include"}
: ${LDFLAGS="-L/usr/local/lib"}
fi
### ** Handle arguments to configure.
config_opts="${ac_configure_args}"
AC_SUBST(config_opts)
### ** Optional features.
## Allow the user to specify support for R profiling.
AC_ARG_ENABLE([R-profiling],
[AC_HELP_STRING([--enable-R-profiling],
[attempt to compile support for Rprof() @<:@yes@:>@])],
[if test "${enableval}" = no; then
want_R_profiling=no
elif test "${enableval}" = yes; then
want_R_profiling=yes
else
want_R_profiling=yes
fi],
[want_R_profiling=yes])
## Allow the user to specify building an R framework (Darwin).
AC_ARG_ENABLE([R-framework],
[AC_HELP_STRING([--enable-R-framework@<:@=DIR@:>@],
[build R framework (if possible), and specify its
installation prefix @<:@yes, /Library/Frameworks@:>@])],
[want_R_framework="${enableval}"],
[want_R_framework=yes])
## Can only build frameworks on Darwin.
if test "${want_R_framework}" != no; then
case "${host_os}" in
darwin*)
if test "${want_R_framework}" = yes; then
## If we build a framework and 'prefix' was not given, we need
## to set it to '/Library/Frameworks' rather than '/usr/local'.
## Note that Autoconf sets things up so that by default, prefix
## and exec_prefix are set to 'NONE'. Let's hope for no change.
if test "x${prefix}" = xNONE; then
prefix="/Library/Frameworks"
fi
else
prefix="${want_R_framework}"
want_R_framework=yes
fi
;;
*)
want_R_framework=no
;;
esac
fi
AM_CONDITIONAL(WANT_R_FRAMEWORK, [test "x${want_R_framework}" = xyes])
## Allow the user to specify building R shared libraries.
## <NOTE>
## Building a framework implies building R shared libraries, hence the
## strange default.
## We might want to warn about the case where '--disable-R-shlib' was
## given explicitly ...
## </NOTE>
AC_ARG_ENABLE([R-shlib],
[AC_HELP_STRING([--enable-R-shlib],
[build R as a shared library @<:@no@:>@])],
[want_R_shlib="${enableval}"],
[want_R_shlib="${want_R_framework}"])
## processed after GNOME, which can set this.
## Enable maintainer-specific portions of Makefiles.
AC_ARG_ENABLE([maintainer-mode],
[AC_HELP_STRING([--enable-maintainer-mode],
[enable make rules and dependencies not useful (and
maybe confusing) to the casual installer @<:@no@:>@])],
[use_maintainer_mode="${enableval}"],
[use_maintainer_mode=no])
AM_CONDITIONAL(MAINTAINER_MODE, [test "x${use_maintainer_mode}" = xyes])
## Enable testing the write barrier.
AC_ARG_ENABLE([strict-barrier],
[AC_HELP_STRING([--enable-strict-barrier],
[provoke compile error on write barrier violation
@<:@no@:>@])],
[use_strict_barrier="${enableval}"],
[use_strict_barrier=no])
if test x"${use_strict_barrier}" = xyes; then
AC_DEFINE(TESTING_WRITE_BARRIER, 1,
[Define to enable provoking compile errors on write barrier
violation.])
fi
AC_ARG_ENABLE([linux-lfs],
[AC_HELP_STRING([--enable-linux-lfs],
[Enable support for > 2GB files on Linux @<:@no@:>@])],
[want_linux_lfs="${enableval}"],
[want_linux_lfs=no])
AC_ARG_ENABLE([utf8],
[AC_HELP_STRING([--enable-utf8],
[Enable support for UTF-8 locales @<:@no@:>@])],
[want_utf8_support="${enableval}"],
[want_utf8_support=no])
### ** Optional packages.
## BLAS.
AC_ARG_WITH([blas],
[AC_HELP_STRING([--with-blas],
[use BLAS library, or specify it @<:@yes@:>@])],
[R_ARG_USE(blas)],
[use_blas=yes])
## LAPACK.
AC_ARG_WITH([lapack],
[AC_HELP_STRING([--with-lapack],
[use LAPACK library, or specify it @<:@no@:>@])],
[R_ARG_USE(lapack)],
[use_lapack=no])
## Readline.
AC_ARG_WITH([readline],
[AC_HELP_STRING([--with-readline],
[use readline library (if available) @<:@yes@:>@])],
[R_ARG_USE(readline)],
[use_readline=yes])
## Aqua.
AC_ARG_WITH([aqua],
[AC_HELP_STRING([--with-aqua],
[use Aqua (if available) @<:@no@:>@])],
[want_aqua=yes])
## Tcl/Tk.
AC_ARG_WITH([tcltk],
[AC_HELP_STRING([--with-tcltk],
[use Tcl/Tk, or specify its library dir @<:@yes@:>@])],
[if test "${withval}" = no; then
want_tcltk=no
elif test "${withval}" = yes; then
want_tcltk=yes
else
want_tcltk=yes
LDFLAGS="${LDFLAGS} -L${withval}"
tcltk_prefix="${withval}"
fi],
[want_tcltk=yes])
AC_ARG_WITH([tcl-config],
[AC_HELP_STRING([--with-tcl-config=TCL_CONFIG],
[specify location of tclConfig.sh @<:@@:>@])],
[TCL_CONFIG="${withval}"],
[TCL_CONFIG=""])
AC_ARG_WITH([tk-config],
[AC_HELP_STRING([--with-tk-config=TK_CONFIG],
[specify location of tkConfig.sh @<:@@:>@])],
[TK_CONFIG="${withval}"],
[TK_CONFIG=""])
## other libraries
AC_ARG_WITH([libpng],
[AC_HELP_STRING([--with-libpng],
[use libpng library (if available) @<:@yes@:>@])],
[R_ARG_USE(libpng)],
[use_libpng=yes])
AC_ARG_WITH([jpeglib],
[AC_HELP_STRING([--with-jpeglib],
[use jpeglib library (if available) @<:@yes@:>@])],
[R_ARG_USE(jpeglib)],
[use_jpeglib=yes])
AC_ARG_WITH([zlib],
[AC_HELP_STRING([--with-zlib],
[use system zlib library (if available) @<:@no@:>@])],
[R_ARG_USE(zlib)],
[use_zlib=no])
AC_ARG_WITH([bzlib],
[AC_HELP_STRING([--with-bzlib],
[use system bzlib library (if available) @<:@no@:>@])],
[R_ARG_USE(bzlib)],
[use_bzlib=no])
AC_ARG_WITH([pcre],
[AC_HELP_STRING([--with-pcre],
[use system PCRE library (if available) @<:@no@:>@])],
[R_ARG_USE(pcre)],
[use_pcre=no])
## needs to come after GNOME
AM_CONDITIONAL(WANT_R_SHLIB, [test "x${want_R_shlib}" = xyes])
if test "${want_R_shlib}" = yes; then
LIBR="-L\$(R_HOME)/lib -lR"
else
LIBR=
fi
AC_SUBST(LIBR)
## <FIXME>
## Completely disable using libtool for building shlibs until libtool
## fully supports Fortran and C++.
## AC_ARG_WITH([libtool],
## [AC_HELP_STRING([--with-libtool],
## [use libtool for building shared libraries @<:@yes@:>@])],
## [use_libtool="${withval}"],
## [use_libtool=yes])
## </FIXME>
AM_CONDITIONAL(USE_LIBTOOL, [test "x${use_libtool}" = xyes])
## Recommended R packages.
AC_ARG_WITH([recommended-packages],
[AC_HELP_STRING([--with-recommended-packages],
[use/install recommended R packages (if available)
@<:@yes@:>@])],
[R_ARG_USE(recommended_packages)],
[use_recommended_packages=yes])
### ** Precious variables.
AC_ARG_VAR([R_PRINTCMD],
[command used to spool PostScript files to the printer])
AC_ARG_VAR([R_PAPERSIZE],
[paper size for the local (PostScript) printer])
AC_ARG_VAR([R_BATCHSAVE],
[default behavior of R if it encounters EOF in batch mode])
AC_ARG_VAR([MAIN_CFLAGS],
[additional CFLAGS used when compiling the main binary])
AC_ARG_VAR([SHLIB_CFLAGS],
[additional CFLAGS used when building shared libraries])
AC_ARG_VAR([MAIN_FFLAGS],
[additional FFLAGS used when compiling the main binary])
AC_ARG_VAR([SHLIB_FFLAGS],
[additional FFLAGS used when building shared libraries])
AC_ARG_VAR([MAIN_LD],
[command used to link the main binary])
AC_ARG_VAR([MAIN_LDFLAGS],
[flags which are necessary for loading a main program which
will load shared library modules (DLLs) at runtime])
AC_ARG_VAR([CPICFLAGS],
[special flags for compiling C code to be turned into a
shared library.])
AC_ARG_VAR([FPICFLAGS],
[special flags for compiling Fortran code to be turned into a
shared library.])
AC_ARG_VAR([SHLIB_LD],
[command for linking shared libraries which contain object
files from a C or Fortran compiler only])
AC_ARG_VAR([SHLIB_LDFLAGS],
[special flags used by SHLIB_LD])
AC_ARG_VAR([DYLIB_LD],
[command for linking dynamic libraries which contain object
files from a C or Fortran compiler only])
AC_ARG_VAR([DYLIB_LDFLAGS],
[special flags used for make a dynamic library])
AC_ARG_VAR([CXXPICFLAGS],
[special flags for compiling C++ code to be turned into a
shared library])
AC_ARG_VAR([SHLIB_CXXLD],
[command for linking shared libraries which contain object
files from a C++ compiler])
AC_ARG_VAR([SHLIB_CXXLDFLAGS],
[special flags used by SHLIB_CXXLD])
AC_ARG_VAR([TCLTK_LIBS],
[flags needed for linking against the Tcl and Tk libraries])
AC_ARG_VAR([TCLTK_CPPFLAGS],
[flags needed for finding the tcl.h and tk.h headers])
AC_ARG_VAR([MAKE], [Make command])
AC_ARG_VAR([F2C], [Fortran-to-C converter command])
AC_ARG_VAR([R_BROWSER], [default browser])
AC_ARG_VAR([BLAS_LIBS],
[flags needed for linking against external BLAS libraries])
AC_ARG_VAR([LAPACK_LIBS],
[flags needed for linking against external LAPACK libraries])
### ** Check whether we build in srcdir.
AC_PATH_PROG(GETWD, pwd, pwd)
AC_MSG_CHECKING([whether builddir is srcdir])
if test "`cd ${srcdir} && ${GETWD}`" = "`${GETWD}`"; then
BUILDDIR_IS_SRCDIR=yes
else
BUILDDIR_IS_SRCDIR=no
fi
AC_SUBST(BUILDDIR_IS_SRCDIR)
AC_MSG_RESULT([${BUILDDIR_IS_SRCDIR}])
### * Checks for programs.
AC_PROG_AWK
AC_PROG_EGREP
AC_PROG_LN_S
AC_PROG_RANLIB
AC_PROG_YACC
R_PROG_AR
R_PROG_INSTALL
AC_PATH_PROG(JAVAC, javac)
## we would like a POSIX sed, and need one on Solaris
AC_PATH_PROGS(SED, sed, /bin/sed, [/usr/xpg4/bin:$PATH])
## Make
: ${MAKE=make}
AC_SUBST(MAKE)
## Pager
R_PROG_PAGER
## Perl
R_PROG_PERL
## Tar
: ${TAR=tar}
AC_SUBST(TAR)
## TeXMF stuff
R_PROG_TEXMF
## Unzip && zip && gzip
AC_PATH_PROGS(R_UNZIPCMD, [${UNZIP} unzip], "")
AC_PATH_PROGS(R_ZIPCMD, [${ZIP} zip], "")
AC_PATH_PROGS(R_GZIPCMD, [${GZIP} gzip], true)
## Browser
R_PROG_BROWSER
## PDF viewer
R_PROG_PDFVIEWER
AC_PROG_CC
AC_PROG_GCC_TRADITIONAL
AC_PROG_CPP
R_PROG_CPP_CPPFLAGS
R_PROG_F77_OR_F2C
AC_PROG_CXX
AC_PROG_CXXCPP
## Libtool.
## (Run this after R_PROG_F77_OR_F2C, as AC_PROG_LIBTOOL checks for a
## Fortran 77 compiler and sets F77 accordingly.)
AC_DISABLE_STATIC
AC_PROG_LIBTOOL
AC_SUBST(LIBTOOL_DEPS)
## Makeinfo
R_PROG_MAKEINFO
### * Checks for libraries.
## Set up LD_LIBRARY_PATH or equivalent.
## <FIXME>
## What is this doing *HERE*?
## Should be needed for tests using AC_RUN_IFELSE()?
## Make sure that non-standard directories specified via '-L' are really
## searched in the tests.
## Note: earlier versions used LIBS rather than LDFLAGS.
for arg in ${LDFLAGS}; do
case "${arg}" in
-L*)
lib=`echo ${arg} | sed "s/^-L//"`
R_SH_VAR_ADD(R_LD_LIBRARY_PATH, [${lib}], [${PATH_SEPARATOR}])
;;
esac
done
## </FIXME>
## Record name of environment variable which tells the dynamic linker
## where to find shlibs (typically, 'LD_LIBRARY_PATH').
ltout=`./libtool --config | grep '^shlibpath_var='`
eval "${ltout}"
AC_SUBST(shlibpath_var)
## Export LD_LIBRARY_PATH or equivalent.
if eval "test -z \"\${${shlibpath_var}}\""; then
eval "${shlibpath_var}=\"${R_LD_LIBRARY_PATH}\""
else
eval "${shlibpath_var}=\"${R_LD_LIBRARY_PATH}${PATH_SEPARATOR}\${${shlibpath_var}}\""
fi
eval "export ${shlibpath_var}"
## Yes, we already need this at configure time ...
case "${host_os}" in
aix*)
LIBS="-lc ${LIBS}"
;;
esac
## <NOTE>
## This actually comes from libtool.m4.
AC_CHECK_LIBM
AC_SUBST(LIBM)
## </NOTE>
## AC_CHECK_LIBM computes LIBM but does not add to LIBS, hence we do
## the following as well.
AC_CHECK_LIB(m, sin)
case "${host_os}" in
darwin[[123456]].*)
## MacOS <= 10.2 doesn't have dlcompat
AM_CONDITIONAL(BUILD_DLFCN_DARWIN, true)
AC_CHECK_LIB(cc_dynamic, main)
;;
darwin*)
## MacOS 10.3 and 10.4 do
AM_CONDITIONAL(BUILD_DLFCN_DARWIN, false)
## SI says we want '-lcc_dynamic' on Darwin, although currently
## http://developer.apple.com /documentation/MacOSX/ has nothing
## official.
AC_CHECK_LIB(cc_dynamic, main)
;;
*)
AM_CONDITIONAL(BUILD_DLFCN_DARWIN, false)
AC_CHECK_LIB(dl, dlopen)
;;
esac
## Readline.
if test "${use_readline}" = yes; then
AC_CHECK_HEADERS(readline/history.h readline/readline.h)
r_save_LIBS="${LIBS}"
LIBS=
## don't use the cached value as we need to rebuild LIBS
unset ac_cv_lib_readline_rl_callback_read_char
AC_CHECK_LIB(readline, rl_callback_read_char)
use_readline="${ac_cv_lib_readline_rl_callback_read_char}"
if test "${use_readline}" = no; then
## only need ncurses if libreadline is not statically linked against it
unset ac_cv_lib_readline_rl_callback_read_char
AC_CHECK_LIB(ncurses, main, [],
AC_CHECK_LIB(termcap, main, [],
AC_CHECK_LIB(termlib, main)))
AC_CHECK_LIB(readline, rl_callback_read_char)
use_readline="${ac_cv_lib_readline_rl_callback_read_char}"
fi
## the NetBSD version as used in MacOS X does not have this
AC_CHECK_FUNCS(history_truncate_file)
READLINE_LIBS="${LIBS}"
LIBS="${r_save_LIBS}"
if test "${use_readline}" = no; then
AC_MSG_ERROR([--with-readline=yes (default) and headers/libs are not available])
fi
fi
AC_SUBST(READLINE_LIBS)
### * Checks for header files.
AC_HEADER_STDC
AC_HEADER_TIME
AC_HEADER_DIRENT
AC_HEADER_SYS_WAIT
## <NOTE>
## Some of these are also checked for when Autoconf computes the default
## includes.
AC_CHECK_HEADERS(arpa/inet.h dl.h dlfcn.h elf.h fcntl.h floatingpoint.h \
fpu_control.h grp.h ieee754.h ieeefp.h limits.h locale.h \
netdb.h netinet/in.h pwd.h strings.h \
sys/param.h sys/select.h sys/socket.h sys/stat.h sys/time.h \
sys/times.h sys/utsname.h unistd.h)
## </NOTE>
## <NOTE>
## These are ANSI C headers but some C code (written to work also
## without assuming ANSI C) may need the corresponding conditionals.
AC_CHECK_HEADERS(errno.h stdarg.h string.h)
## </NOTE>
## <NOTE>
## src/main/regex.c uses HAVE_LIBINTL_H.
## But then we want full gettext support and AM_GNU_GETTEXT.
## AC_CHECK_HEADERS(libintl.h)
## </NOTE>
case "${host_os}" in
sunos4*)
AC_DEFINE(SunOS4, 1,
[Define if your system is SunOS4, which is famous for
broken header files.])
;;
esac
R_HEADER_SETJMP
R_HEADER_GLIBC2
### * Checks for types.
AC_TYPE_SIGNAL
AC_TYPE_PID_T
AC_TYPE_SIZE_T
R_SIZE_MAX
AC_CHECK_TYPE(blkcnt_t, long)
AH_TEMPLATE([blkcnt_t],
[Define to 'long' if <sys/types.h> does not define.
Apparently necessary to fix a GCC bug on AIX?])
R_TYPE_SOCKLEN
### * Checks for compiler characteristics.
### ** Generic tests for the C, Fortran 77 and C++ compilers.
### *** C compiler.
AC_C_BIGENDIAN
AC_C_CONST
R_C_INLINE
if test "${cross_compiling}" = yes; then
warn_xcompile_sizeof_int="assuming C ints are 4 byte on ${host}"
AC_MSG_WARN([${warn_xcompile_sizeof_int}])
fi
AC_CHECK_SIZEOF(int, 4)
if test "${ac_cv_sizeof_int}" = 4; then
AC_DEFINE(INT_32_BITS, 1, [Define if you have 32 bit ints.])
fi
if test "${cross_compiling}" = yes; then
warn_xcompile_sizeof_long="assuming C longs are 4 byte on ${host}"
AC_MSG_WARN([${warn_xcompile_sizeof_long}])
fi
AC_CHECK_SIZEOF(long, 4)
AC_CHECK_SIZEOF(long long, 0)
AC_CHECK_SIZEOF(long double, 0)
R_PROG_CC_MAKEFRAG
### *** Fortran 77 compiler.
if test -n "${F77}"; then
R_PROG_F77_FLIBS
R_PROG_F77_APPEND_UNDERSCORE
R_PROG_F77_CAN_RUN
R_PROG_F77_CC_COMPAT
R_PROG_F77_CC_COMPAT_COMPLEX
R_PROG_F77_MAKEFRAG
else
if test ${ac_cv_sizeof_long} -gt 4 ; then
AC_MSG_ERROR([Cannot use f2c on a > 32-bit machine])
fi
R_PROG_F2C_FLIBS
AC_DEFINE(HAVE_F77_UNDERSCORE, 1)
AC_DEFINE(HAVE_DOUBLE_COMPLEX, 1)
R_PROG_F2C_MAKEFRAG
F77="\$(SHELL) \$(R_HOME)/bin/f77"
fi
AC_SUBST(F2C)
AM_CONDITIONAL(COMPILE_DOUBLE_COMPLEX,
[test "x${HAVE_DOUBLE_COMPLEX}" != x])
### *** C++ compiler.
R_PROG_CXX_MAKEFRAG
### ** Platform-specific overrides for the C, Fortran 77 and C++ compilers.
case "${host_cpu}" in
i*86|x86_64)
R_PROG_CC_FLAG_D__NO_MATH_INLINES
## We used to add -mieee-fp here, but it seems it is really a
## linker flag for old Linuxen adding -lieee to a non-shared link.
;;
alpha*)
## <NOTE>
## * IEEE math
## We really need to use @option{-ieee_with_inexact} (called
## @option{-mieee-with-inexact} for GCC) for the C compiler:
## @option{-ieee} (or @option{-mieee}) are not enough.
## According to <Albrecht.Gebhardt@uni-klu.ac.at> and Luke Tierney
## <luke@stat.uiowa.edu>, @option{-fpe3} is what we want for the
## native Fortran 77 compiler: seems that not all versions map
## @option{-ieee} to @option{-fpe3}.
## What about the C++ compilers?
if test "${GCC}" = yes; then
R_PROG_CC_FLAG([-mieee-with-inexact],
R_SH_VAR_ADD(R_XTRA_CFLAGS, [-mieee-with-inexact]))
else
R_PROG_CC_FLAG([-ieee_with_inexact],
R_SH_VAR_ADD(R_XTRA_CFLAGS, [-ieee_with_inexact]))
fi
if test "${G77}" = yes; then
R_PROG_F77_FLAG([-mieee],
R_SH_VAR_ADD(R_XTRA_FFLAGS, [-mieee]))
else
R_PROG_F77_FLAG([-fpe3],
R_SH_VAR_ADD(R_XTRA_FFLAGS, [-fpe3]))
fi
if test "${GXX}" = yes; then
R_PROG_CXX_FLAG([-mieee],
R_SH_VAR_ADD(R_XTRA_CXXFLAGS, [-mieee]))
else
R_PROG_CXX_FLAG([-ieee],
R_SH_VAR_ADD(R_XTRA_CXXFLAGS, [-ieee]))
fi
## </NOTE>
;;
esac
AH_TEMPLATE([HAVE_NO_SYMBOL_UNDERSCORE],
[Define if module-loading does not need an underscore to
be prepended to external names.])
case "${host_os}" in
aix*)
AC_DEFINE(HAVE_NO_SYMBOL_UNDERSCORE)
if test "${GCC}" = yes; then
R_PROG_CC_FLAG([-mno-fp-in-toc],
R_SH_VAR_ADD(R_XTRA_CFLAGS, [-mno-fp-in-toc]))
fi
## need /lib/crt0_64.o on 64-bit AIX: see comments in R-admin.
if test "x${OBJECT_MODE}" = "x64"; then
R_SH_VAR_ADD(R_XTRA_LIBS, [/lib/crt0_64.o])
else
R_SH_VAR_ADD(R_XTRA_LIBS, [/lib/crt0.o])
fi
;;
cygwin*|mingw*|windows*|winnt)
AC_DEFINE(HAVE_NO_SYMBOL_UNDERSCORE)
;;
darwin*)
## This is needed for Apple's dlsym included in >= 10.3
## and so we've changed dlfcn-darwin.c for 2.1.0
AC_DEFINE(HAVE_NO_SYMBOL_UNDERSCORE)
## Need '-no-cpp-precomp' say J de Leeuw <deleeuw@stat.ucla.edu> and
## http://fink.sourceforge.net/doc/porting/basics.php.
R_SH_VAR_ADD(R_XTRA_CPPFLAGS, [-no-cpp-precomp])
;;
hpux*)
AC_DEFINE(HAVE_NO_SYMBOL_UNDERSCORE)
AC_DEFINE(USE_BUILTIN_RINT, 1,
[Define if your rint() is broken on your system.
Apparently needed on HPUX.])
case "${CC}" in
cc|c89)
## Luke Tierney says we also need '-Wp,-H16000' which tells the
## pre-processor to increase the size of an internal table. It
## seems that src/modules/vfonts/g_her_glyph.c contains a line
## that is too long for the pre-processor without this flag.
R_SH_VAR_ADD(R_XTRA_CPPFLAGS, [-Wp,-H16000])
;;
esac
AC_CHECK_LIB(dld, shl_load, [R_XTRA_LIBS="-ldld ${R_XTRA_LIBS}"])
;;
irix*)
R_C_OPTIEEE
## <NOTE>
## We really should test explictly whether the Fortran and C++
## compilers *need* '-OPT:IEEE_NaN_inf=ON'. Currently, all we do is
## check whether the non-GNU tools *accept* the flag.
if test "${G77}" != yes; then
R_PROG_F77_FLAG([-OPT:IEEE_NaN_inf=ON],
R_SH_VAR_ADD(R_XTRA_FFLAGS, [-OPT:IEEE_NaN_inf=ON]))
fi
if test "${GXX}" != yes; then
R_PROG_CXX_FLAG([-OPT:IEEE_NaN_inf=ON],
R_SH_VAR_ADD(R_XTRA_CXXFLAGS, [-OPT:IEEE_NaN_inf=ON]))
fi
## </NOTE>
;;
openbsd*)
if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then
AC_DEFINE(HAVE_NO_SYMBOL_UNDERSCORE)
fi
;;
osf*)
AC_DEFINE(HAVE_NO_SYMBOL_UNDERSCORE)
;;
esac
AC_SUBST(CFLAGS)
AC_SUBST(MAIN_CFLAGS)
AC_SUBST(SHLIB_CFLAGS)
AC_SUBST(CXXFLAGS)
AC_SUBST(SHLIB_CXXFLAGS)
AC_SUBST(FFLAGS)
AC_SUBST(MAIN_FFLAGS)
AC_SUBST(SHLIB_FFLAGS)
AC_SUBST(F2CFLAGS)
AC_SUBST(R_XTRA_CFLAGS)
AC_SUBST(R_XTRA_CPPFLAGS)
AC_SUBST(R_XTRA_CXXFLAGS)
AC_SUBST(R_XTRA_FFLAGS)
AC_SUBST(R_XTRA_LIBS)
### ** DLL stuff.
## We need to determine the following:
##
## MAIN_LD, MAINLD_FLAGS
## command and flags for loading the main binary so that it will load
## shared libraries (DLLs) at runtime, also for profiling.
## CPICFLAGS, CXXPICFLAGS, FPICFLAGS
## flags for compiling C, C++, and Fortran library code.
## SHLIB_LD, SHLIB_LDFLAGS
## command and flags for creating DLLs (which contain object files
## from a C or Fortran compiler).
## DYLIB_LD, DYLIB_LDFLAGS
## ditto for dynamic libraries (where different.)
## SHLIB_CXXLD, SHLIB_CXXLDFLAGS
## command and flags for creating DLLs which contain object files from
## a C++ compiler. According to Autoconf, the C++ compiler/linker
## must be used for linking in this case (since special C++-ish things
## need to happen at link time like calling global constructors,
## instantiating templates, enabling exception support, etc.).
##
## The procedure is as follows.
##
## * We use applicable values from imake in case its CC is ours.
## * Irrespective of that, we think we know what to do with GNU tools
## (GNU C, Fortran, and C++ compilers).
## * Then, use platform specific overrides.
## * As a final safeguard, values from the environment (as specified in
## one of the configuration files or at the configure command line)
## override anything we figure out in the case of compiler flags; for
## linker flags (*LDFLAGS), environment settings override our results
## if the corresponding *LD variable was set, and add otherwise.
##
## NOTE: We do not provide defaults for the *LDFLAGS, taking a defensive
## approach. In case we cannot figure out {MAIN,SHLIB}_LDFLAGS and the
## user did not provide defaults, an error results. A warning is given
## if nothing was obtained for SHLIB_CXXLDFLAGS.
##
## Note also that some systems (notably AIX) do not allow for unresolved
## symbols at link time. For such systems, we link against -lm (in case
## it exists) when building a shlib module via SHLIB_LIBADD.
main_ld="${CC}"
shlib_ld="${CC}"
shlib_cxxld="${CXX}"
SHLIB_EXT=".so"
SHLIB_LIBADD=
use_exportfiles=no
## Step 1. Ask imake.
## <NOTE>
## Earlier versions had fpicflags=${cpicflags}. As this really amounts
## to hoping rather than knowing, we no longer do this.
## </NOTE>
r_xtra_path="${PATH}"
for dir in /usr/bin/X11 /usr/X11R6/bin /usr/openwin/bin; do
r_xtra_path="${r_xtra_path}${PATH_SEPARATOR}${dir}"
done
AC_PATH_PROG(XMKMF, xmkmf, [], [${r_xtra_path}])
if test -n "${XMKMF}"; then
echo > Imakefile
${XMKMF} > /dev/null 2>&1 || echo > Makefile
cc=`${srcdir}/tools/GETMAKEVAL CC`
cc=`echo ${cc} | sed "s/ .*//"`
if test "`which ${cc}`" = "`which ${CC}`"; then
shlib_ldflags=`${srcdir}/tools/GETMAKEVAL SHLIBLDFLAGS`
cpicflags=`${srcdir}/tools/GETMAKEVAL PICFLAGS`
fi
cxx=`${srcdir}/tools/GETMAKEVAL CXX`
cxx=`echo ${cxx} | sed "s/ .*//"`
if test "`which ${cxx}`" = "`which ${CXX}`"; then
cxxpicflags=`${srcdir}/tools/GETMAKEVAL CXXPICFLAGS`
fi
rm -f Imakefile Makefile
fi
## Step 2. GNU compilers.
if test "${GCC}" = yes; then
cpicflags="-fPIC"
shlib_ldflags="-shared"
fi
if test "${G77}" = yes; then
fpicflags="-fPIC"
fi
if test "${GXX}" = yes; then
cxxpicflags="-fPIC"
shlib_cxxldflags="-shared"
fi
## Step 3. Individual platform overrides.
case "${host_os}" in
aix*)
use_exportfiles=yes
## All AIX code is PIC.
cpicflags=
cxxpicflags=
fpicflags=
wl="-Wl,"
main_ldflags="${wl}-bdynamic ${wl}-bE:\$(top_builddir)/etc/R.exp ${wl}-bM:SRE"
shlib_ldflags="${wl}-bM:SRE ${wl}-H512 ${wl}-T512 ${wl}-bnoentry ${wl}-bexpall ${wl}-bI:\$(R_HOME)/etc/R.exp"
SHLIB_LIBADD="\$(LIBM)"
;;
darwin*)
cpicflags="-fno-common"
cxxpicflags="-fno-common"
if test "${G77}" = yes; then
fpicflags="-fno-common"
fi
## Used to need this for GUI and quartz device, but neither are in
## R or libR.dylib any longer (2.1.0).
## main_ldflags="-framework Carbon"
## Want '-mdynamic-no-pic' for GCC 3, says Jan de Leeuw.
if test "${GCC}" = yes; then
## <FIXME>
## R_PROG_CC_M() has the same code for determining the gcc
## version. Move this into e.g. _R_PROG_CC_VERSION.
gcc_version=`${CC} -v 2>&1 | grep "^.*g.. version" | \
sed -e 's/^.*g.. version *//'`
case "${gcc_version}" in
3.*)
R_SH_VAR_ADD(main_ldflags, [-mdynamic-no-pic]) ;;
esac
## </FIXME>
fi
case "${host_os}" in
## According to Jan de Leeuw, OS X 10.1 is darwin 5, OS X 10.2 is
## darwin 6, and the real difference is between darwin < and >= 5.
## It would be nice to use R.bin (or libR.dylib) as bundle_loader
## together with '-undefined suppress' for darwin 5 or better, but
## the paths to these change when installing.
## The Darwin 1.[012] special casing is from libtool and could be
## eliminated ('-flat_namespace' is the default if available).
darwin1.[[012]]*)
shlib_ldflags="-bundle -undefined suppress" ;;
*)
shlib_ldflags="-bundle -flat_namespace -undefined suppress" ;;
esac
shlib_cxxldflags="${shlib_ldflags}"
if test "${ac_cv_lib_cc_dynamic_main}" = yes; then
## Could also try grepping LIBS for '-lcc_dynamic' ...
SHLIB_LIBADD="-lcc_dynamic"
fi
;;
freebsd*)
## Only sure for FreeBSD 3 and above.
main_ldflags="-export-dynamic"
shlib_ldflags="-shared"
;;
gnu*) # GNU Hurd
main_ldflags="-export-dynamic"
;;
hpux*)
SHLIB_EXT=".sl"
case "${CC}" in
cc|c89)
cpicflags="+Z"
;;
esac
case "${F77}" in
f77|fort77|f90)
fpicflags="+Z"
;;
esac
main_ldflags="-Wl,-E"
if test "${GCC}" = yes; then
shlib_ldflags="-shared -fPIC -Wl,-Bsymbolic"
else
## <NOTE>
## Native cc insists on tacking on crt0.o when it calls ld, and
## crt0.o is not built with PIC. As there seems to be no obvious
## way to tell cc not to do this, we use ld for linking shlibs.
shlib_ld=ld
shlib_ldflags="-b -Bsymbolic"
## </NOTE>
fi
if test "${GXX}" = yes; then
shlib_cxxldflags="-shared -fPIC"
fi
;;
irix*)
cpicflags=
cxxpicflags=
fpicflags=
shlib_ldflags="-shared"
shlib_cxxldflags="-shared"
;;
linux*aout) # GNU Linux/aout
sed '/HAVE_ELF_H/d' confdefs.h > tmp.h ; mv tmp.h confdefs.h
;;
linux*) # GNU Linux/ELF
## Luke Tierney says that just '-export-dynamic' does not work for
## Intel compilers (icc).
main_ldflags="-Wl,--export-dynamic"
;;
mingw*)
SHLIB_EXT=".dll"
cpicflags=
cxxpicflags=
fpicflags=
;;
netbsd*)
if ${CPP} - -dM < /dev/null | grep __ELF__ >/dev/null ; then
main_ldflags="-export-dynamic"
shlib_ldflags="-shared"
else
shlib_ldflags="-Bshareable"
fi
;;
openbsd*)
if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then
main_ldflags="${wl}-export-dynamic"
shlib_ldflags="-shared -fPIC"
fi
;;
osf*)
cpicflags=
cxxpicflags=
fpicflags=
shlib_ldflags="-shared"
;;
solaris*)
shlib_ldflags="-G"
shlib_cxxldflags="-G"
if test "${GCC}" = yes; then
ld=`${CC} -print-prog-name=ld`
ldoutput=`${ld} -v 2>&1 | grep GNU`
if test -n "${ldoutput}"; then