8d0823e282
* configure.in (extra_includes): Don't attempt to calculate the
location of the gcc src or obj directories. Instead rely on
precomputed variables, $topsrcdir and $r, to obtain these values.
Set -I flags appropriately.
From-SVN: r26084
250 lines
7.8 KiB
Plaintext
250 lines
7.8 KiB
Plaintext
# Process this file with autoconf to produce a configure script.
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# Copyright (C) 1995, 1997, 1998, 1999 Free Software Foundation, Inc.
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# Contributed by Dave Love (d.love@dl.ac.uk).
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#
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#This file is part of GNU Fortran.
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#
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#GNU Fortran is free software; you can redistribute it and/or modify
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#it under the terms of the GNU General Public License as published by
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#the Free Software Foundation; either version 2, or (at your option)
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#any later version.
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#
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#GNU Fortran is distributed in the hope that it will be useful,
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#but WITHOUT ANY WARRANTY; without even the implied warranty of
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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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#GNU General Public License for more details.
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#
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#You should have received a copy of the GNU General Public License
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#along with GNU Fortran; see the file COPYING. If not, write to
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#the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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#02111-1307, USA.
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AC_PREREQ(2.13)
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AC_INIT(libF77/Version.c)
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if test "${srcdir}" = "." ; then
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if test "${with_target_subdir}" != "." ; then
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topsrcdir=${with_multisrctop}../..
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else
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topsrcdir=${with_multisrctop}..
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fi
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else
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topsrcdir=${srcdir}/..
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fi
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dnl This is needed for a multilibbed build in the source tree so
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dnl that install-sh and config.sub get found.
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AC_CONFIG_AUX_DIR($topsrcdir)
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# We have to handle 3 cases -- native, cross and canadian cross -- and
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# the extension returned from this macro needs to be treated as a possible
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# scenario and not the only one.
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AC_EXEEXT
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# If the language specific compiler does not exist, but the "gcc" directory
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# does, we do not build anything. Note, $r is set by the top-level Makefile.
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# Note that when we look for the compiler, we search both with and without
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# extension to handle cross and canadian cross builds.
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compiler_name=f771
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rm -f skip-this-dir
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AC_MSG_CHECKING(if compiler $compiler_name has been built)
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AC_CACHE_VAL(g77_cv_compiler_exists,
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[g77_cv_compiler_exists=yes
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if test -n "$r"; then
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if test -d "$r"/gcc; then
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if test -f "$r"/gcc/$compiler_name \
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|| test -f "$r"/gcc/$compiler_name$EXEEXT; then
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true
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else
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g77_cv_compiler_exists=no
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echo "rm -f config.cache config.log multilib.out" > skip-this-dir
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fi
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fi
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fi
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])
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AC_MSG_RESULT($g77_cv_compiler_exists)
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if test x$g77_cv_compiler_exists = xno
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then
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rm -f Makefile conftest* confdefs* core
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exit 0
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fi
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dnl Checks for programs.
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# For g77 we'll set CC to point at the built gcc, but this will get it into
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# the makefiles
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AC_PROG_CC
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dnl These should be inherited in the recursive make, but ensure they are
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dnl defined:
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test "$AR" || AR=ar
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AC_SUBST(AR)
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if test "$RANLIB"; then :
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AC_SUBST(RANLIB)
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else
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AC_PROG_RANLIB
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fi
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AC_PROG_INSTALL
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AC_PROG_MAKE_SET
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dnl Checks for header files.
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# Sanity check for the cross-compilation case:
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AC_CHECK_HEADER(stdio.h,:,
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[AC_MSG_ERROR([Can't find stdio.h.
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You must have a usable C system for the target already installed, at least
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including headers and, preferably, the library, before you can configure
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the G77 runtime system. If necessary, install gcc now with \`LANGUAGES=c',
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then the target library, then build with \`LANGUAGES=f77'.])])
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# We have to firkle with the info in hconfig.h to figure out suitable types
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# (via com.h). proj.h and com.h are in gcc/f/, config.h which they need
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# is in gcc/ and the config files are in gcc/config/.
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AC_MSG_CHECKING(f2c integer type)
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# Set this back later below!
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late_ac_cpp=$ac_cpp
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late_cflags=$CFLAGS
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extra_includes="-I$topsrcdir/gcc/f -I$topsrcdir/gcc -I$topsrcdir/include -I$topsrcdir/gcc/config -I$r/gcc"
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ac_cpp="$late_ac_cpp -DIN_GCC -DHAVE_CONFIG_H $extra_includes"
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# The AC_EGREP_CPPs below have been known to fail when the header
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# path is wrong after things have been moved about; the cpp error status
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# counts for nothing. First check that there aren't any errors from
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# the headers.
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CFLAGS="$CFLAGS -DHAVE_CONFIG_H -DIN_GCC $extra_includes"
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AC_TRY_COMPILE([#include "proj.h"
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#define FFECOM_DETERMINE_TYPES 1
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#include "com.h"],,,
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AC_MSG_ERROR([Can't run check for integer sizes -- see config.log]))
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CFLAGS=$late_cflags
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AC_CACHE_VAL(g77_cv_sys_f2cinteger,
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echo "configure:__oline__: using $ac_cpp" >&AC_FD_CC
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AC_EGREP_CPP(F2C_INTEGER=long int,
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[#include "proj.h"
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#define FFECOM_DETERMINE_TYPES 1
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#include "com.h"
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#if FFECOM_f2cINTEGER == FFECOM_f2ccodeLONG
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F2C_INTEGER=long int
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#elif FFECOM_f2cINTEGER == FFECOM_f2ccodeINT
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F2C_INTEGER=int
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#else
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# error "Cannot find a suitable type for F2C_INTEGER"
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#endif
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],
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g77_cv_sys_f2cinteger="long int",)
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if test "$g77_cv_sys_f2cinteger" = ""; then
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echo "configure:__oline__: using $ac_cpp" >&AC_FD_CC
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AC_EGREP_CPP(F2C_INTEGER=int,
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[#include "proj.h"
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#define FFECOM_DETERMINE_TYPES 1
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#include "com.h"
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#if FFECOM_f2cINTEGER == FFECOM_f2ccodeLONG
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F2C_INTEGER=long int
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#elif FFECOM_f2cINTEGER == FFECOM_f2ccodeINT
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F2C_INTEGER=int
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#else
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# error "Cannot find a suitable type for F2C_INTEGER"
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#endif
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],
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g77_cv_sys_f2cinteger=int,)
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fi
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if test "$g77_cv_sys_f2cinteger" = ""; then
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AC_MSG_RESULT("")
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AC_MSG_ERROR([Can't determine type for f2c integer; config.log may help.])
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fi
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)
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AC_MSG_RESULT($g77_cv_sys_f2cinteger)
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F2C_INTEGER=$g77_cv_sys_f2cinteger
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AC_SUBST(F2C_INTEGER)
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AC_MSG_CHECKING(f2c long int type)
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AC_CACHE_VAL(g77_cv_sys_f2clongint,
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echo "configure:__oline__: using $ac_cpp" >&AC_FD_CC
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AC_EGREP_CPP(F2C_LONGINT=long int,
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[#include "proj.h"
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#define FFECOM_DETERMINE_TYPES 1
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#include "com.h"
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#if FFECOM_f2cLONGINT == FFECOM_f2ccodeLONG
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F2C_LONGINT=long int
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#elif FFECOM_f2cLONGINT == FFECOM_f2ccodeLONGLONG
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F2C_LONGINT=long long int
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#else
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# error "Cannot find a suitable type for F2C_LONGINT"
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#endif
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],
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g77_cv_sys_f2clongint="long int",)
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if test "$g77_cv_sys_f2clongint" = ""; then
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echo "configure:__oline__: using $ac_cpp" >&AC_FD_CC
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AC_EGREP_CPP(F2C_LONGINT=long long int,
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[#include "proj.h"
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#define FFECOM_DETERMINE_TYPES 1
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#include "com.h"
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#if FFECOM_f2cLONGINT == FFECOM_f2ccodeLONG
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F2C_LONGINT=long int
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#elif FFECOM_f2cLONGINT == FFECOM_f2ccodeLONGLONG
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F2C_LONGINT=long long int
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#else
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# error "Cannot find a suitable type for F2C_LONGINT"
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#endif
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],
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g77_cv_sys_f2clongint="long long int",)
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fi
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if test "$g77_cv_sys_f2clongint" = ""; then
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AC_MSG_RESULT("")
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AC_MSG_ERROR([Can't determine type for f2c long int; config.log may help.])
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fi
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)
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AC_MSG_RESULT($g77_cv_sys_f2clongint)
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F2C_LONGINT=$g77_cv_sys_f2clongint
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AC_SUBST(F2C_LONGINT)
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ac_cpp=$late_ac_cpp
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# avoid confusion in case the `makefile's from the f2c distribution have
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# got put here
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test -f libF77/makefile && mv libF77/makefile libF77/makefile.ori
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test -f libI77/makefile && mv libI77/makefile libI77/makefile.ori
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test -f libU77/makefile && mv libU77/makefile libU77/makefile.ori
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# Get the version trigger filename from the toplevel
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if [[ "${with_gcc_version_trigger+set}" = set ]]; then
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gcc_version_trigger=$with_gcc_version_trigger
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gcc_version=`sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/' < ${gcc_version_trigger}`
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else
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gcc_version_trigger=
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gcc_version=UNKNOWN
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fi
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AC_SUBST(gcc_version)
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AC_SUBST(gcc_version_trigger)
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AC_CANONICAL_SYSTEM
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AC_SUBST(target_alias)
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AC_CONFIG_SUBDIRS(libU77 libI77 libF77)
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# Do Makefile first since g2c.h depends on it and shouldn't get an
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# earlier timestamp. Of course, it does when the multilib gunk below
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# edits Makefile, sigh; see additional touch below.
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AC_OUTPUT(Makefile g2c.h:g2c.hin,
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[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
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if test -n "$CONFIG_FILES"; then
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if test -n "${with_target_subdir}"; then
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# FIXME: We shouldn't need to set ac_file
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ac_file=Makefile
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. ${topsrcdir}/config-ml.in
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touch g2c.h # to keep it more recent than Makefile
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fi
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fi],
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srcdir=${srcdir}
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host=${host}
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target=${target}
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with_target_subdir=${with_target_subdir}
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with_multisubdir=${with_multisubdir}
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ac_configure_args="--enable-multilib ${ac_configure_args}"
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CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
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topsrcdir=${topsrcdir}
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)
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dnl Local Variables:
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dnl comment-start: "dnl "
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dnl comment-end: ""
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dnl comment-start-skip: "\\bdnl\\b\\s *"
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dnl End:
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