373 lines
11 KiB
Plaintext
373 lines
11 KiB
Plaintext
# Process this file with autoconf to produce a configure script.
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# Copyright (C) 1995, 1997 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_INIT(libF77/Version.c)
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AC_REVISION(1.11)
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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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dnl Make sure that RANLIB_TEST is set also.
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if test -z "$RANLIB_TEST"; then
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RANLIB_TEST=true
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fi
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else
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RANLIB_TEST=true
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AC_PROG_RANLIB
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fi
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AC_SUBST(RANLIB_TEST)
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dnl not needed for g77?
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dnl AC_PROG_MAKE_SET
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dnl Checks for libraries.
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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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AC_HEADER_STDC
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dnl We could do this if we didn't know we were using gcc
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dnl AC_MSG_CHECKING(for prototype-savvy compiler)
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dnl AC_CACHE_VAL(g77_cv_sys_proto,
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dnl [AC_TRY_LINK(,
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dnl dnl looks screwy because TRY_LINK expects a function body
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dnl [return 0;} int foo (int * bar) {],
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dnl g77_cv_sys_proto=yes,
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dnl [g77_cv_sys_proto=no
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dnl AC_DEFINE(KR_headers)])])
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dnl AC_MSG_RESULT($g77_cv_sys_proto)
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dnl for U77
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dnl AC_CHECK_HEADERS(unistd.h)
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AC_MSG_CHECKING(for posix)
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AC_CACHE_VAL(g77_cv_header_posix,
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AC_EGREP_CPP(yes,
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[#include <sys/types.h>
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#include <unistd.h>
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#ifdef _POSIX_VERSION
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yes
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#endif
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],
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g77_cv_header_posix=yes,
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g77_cv_header_posix=no))
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AC_MSG_RESULT($g77_cv_header_posix)
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# We can rely on the GNU library being posix-ish. I guess checking the
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# header isn't actually like checking the functions, though...
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AC_MSG_CHECKING(for GNU library)
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AC_CACHE_VAL(g77_cv_lib_gnu,
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AC_EGREP_CPP(yes,
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[#include <stdio.h>
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#ifdef __GNU_LIBRARY__
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yes
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#endif
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],
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g77_cv_lib_gnu=yes, g77_cv_lib_gnu=no))
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AC_MSG_RESULT($g77_cv_lib_gnu)
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# Apparently cygwin needs to be special-cased.
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AC_MSG_CHECKING([for cyg\`win'32])
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AC_CACHE_VAL(g77_cv_sys_cygwin32,
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AC_EGREP_CPP(yes,
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[#ifdef __CYGWIN32__
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yes
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#endif
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],
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g77_cv_sys_cygwin32=yes,
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g77_cv_sys_cygwin32=no))
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AC_MSG_RESULT($g77_cv_sys_cygwin32)
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# ditto for mingw32.
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AC_MSG_CHECKING([for mingw32])
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AC_CACHE_VAL(g77_cv_sys_mingw32,
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AC_EGREP_CPP(yes,
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[#ifdef __MINGW32__
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yes
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#endif
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],
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g77_cv_sys_mingw32=yes,
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g77_cv_sys_mingw32=no))
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AC_MSG_RESULT($g77_cv_sys_mingw32)
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AC_CHECK_HEADER(fcntl.h,
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test $g77_cv_header_posix = yes && AC_DEFINE(_POSIX_SOURCE),
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AC_DEFINE(NO_FCNTL) AC_DEFINE(OPEN_DECL))
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dnl Checks for typedefs, structures, and compiler characteristics.
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AC_C_CONST
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AC_TYPE_SIZE_T
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dnl Checks for library functions.
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AC_TYPE_SIGNAL
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# we'll get atexit by default
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if test $ac_cv_header_stdc != yes; then
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AC_CHECK_FUNC(atexit,
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AC_DEFINE(onexit,atexit),dnl just in case
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[AC_DEFINE(NO_ONEXIT)
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AC_CHECK_FUNC(onexit,,
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[AC_CHECK_FUNC(on_exit,
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AC_DEFINE(onexit,on_exit),)])])
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else true
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fi
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# This should always succeed on unix.
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# Apparently positive result on cygwin loses re. NON_UNIX_STDIO
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# (as of cygwin b18). Likewise on mingw.
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AC_CHECK_FUNC(fstat)
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AC_MSG_CHECKING([need for NON_UNIX_STDIO])
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if test $g77_cv_sys_cygwin32 = yes \
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|| test $g77_cv_sys_mingw32 = yes \
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|| test $ac_cv_func_fstat = no; then
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AC_MSG_RESULT(yes)
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AC_DEFINE(NON_UNIX_STDIO)
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else
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AC_MSG_RESULT(no)
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fi
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# This is necessary for e.g. Linux:
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AC_MSG_CHECKING([for necessary members of struct FILE])
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AC_CACHE_VAL(g77_cv_struct_FILE,
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[AC_TRY_COMPILE([#include <stdio.h>],
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[FILE s; s._ptr; s._base; s._flag;],g77_cv_struct_FILE=yes,
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g77_cv_struct_FILE=no)])dnl
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AC_MSG_RESULT($g77_cv_struct_FILE)
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if test $g77_cv_struct_FILE = no; then
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AC_DEFINE(MISSING_FILE_ELEMS)
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fi
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dnl perhaps should check also for remainder
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dnl Unfortunately, the message implies we're just checking for -lm...
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AC_CHECK_LIB(m,drem,AC_DEFINE(IEEE_drem))
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dnl for U77:
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dnl AC_CHECK_FUNCS(symlink getcwd lstat)
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dnl test $ac_cv_func_symlink = yes && SYMLNK=symlnk_.o
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dnl test $ac_cv_func_lstat = yes && SYMLNK="$SYMLNK lstat_.o"
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dnl AC_SUBST(SYMLNK)
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AC_CHECK_FUNCS(tempnam)
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# posix will guarantee the right behaviour for sprintf, else we can't be
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# sure; HEADER_STDC wouldn't be the right check in sunos4, for instance.
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# However, on my sunos4/gcc setup unistd.h leads us wrongly to believe
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# we're posix-conformant, so always do the test.
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AC_MSG_CHECKING(for ansi/posix sprintf result)
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dnl This loses if included as an argument to AC_CACHE_VAL because the
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dnl changequote doesn't take effect and the [] vanish.
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dnl fixme: use cached value
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AC_TRY_RUN(changequote(<<, >>)dnl
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<<#include <stdio.h>
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/* does sprintf return the number of chars transferred? */
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main () {char foo[2]; (sprintf(foo, "1") == 1) ? exit(0) : exit(1);}
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>>changequote([, ]),
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g77_cv_sys_sprintf_ansi=yes,
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g77_cv_sys_sprintf_ansi=no,
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g77_cv_sys_sprintf_ansi=no)
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AC_CACHE_VAL(g77_cv_sys_sprintf_ansi,
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g77_cv_sys_sprintf_ansi=$g77_cv_sys_sprintf_ansi)
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dnl We get a misleading `(cached)' message...
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AC_MSG_RESULT($g77_cv_sys_sprintf_ansi)
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# The cygwin patch takes steps to avoid defining USE_STRLEN here -- I don't
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# understand why.
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if test $g77_cv_sys_sprintf_ansi != yes; then
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AC_DEFINE(USE_STRLEN)
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fi
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# define NON_ANSI_RW_MODES on unix (can't hurt)
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AC_MSG_CHECKING(NON_ANSI_RW_MODES)
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AC_EGREP_CPP(yes,
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[#ifdef unix
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yes
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#endif
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#ifdef __unix
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yes
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#endif
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#ifdef __unix__
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yes
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#endif
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], is_unix=yes, is_unix=no)
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if test $g77_cv_sys_cygwin32 = yes || test $g77_cv_sys_mingw32 = yes; then
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AC_MSG_RESULT(no)
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else
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if test $is_unix = yes; then
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AC_DEFINE(NON_ANSI_RW_MODES)
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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fi
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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 $srcdir/.., config.h which they need
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# is in ../.. and the config files are in $srcdir/../../config.
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AC_MSG_CHECKING(f2c integer type)
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late_ac_cpp=$ac_cpp
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ac_cpp="$late_ac_cpp -I../../gcc/f -I../../gcc -I../../gcc/config"
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if test "$subdir" != . ; then
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ac_cpp="$ac_cpp -I$srcdir/../gcc/f -I$srcdir/../gcc -I$srcdir/../gcc/config"
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fi
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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_cpp=$late_ac_cpp
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AC_SUBST(F2C_INTEGER)
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AC_MSG_CHECKING(f2c long int type)
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late_ac_cpp=$ac_cpp
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ac_cpp="$late_ac_cpp -I../../gcc/f -I../../gcc -I../../gcc/config"
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if test "$subdir" != . ; then
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ac_cpp="$ac_cpp -I$srcdir/../gcc/f -I$srcdir/../gcc -I$srcdir/../gcc/config"
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fi
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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_cpp=$late_ac_cpp
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AC_SUBST(F2C_LONGINT)
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dnl maybe check for drem/remainder
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# This EOF_CHAR is a misfeature on unix.
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AC_DEFINE(NO_EOF_CHAR_CHECK)
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AC_DEFINE(Skip_f2c_Undefs)
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# avoid confusion in case the `makefile's from the f2c distribution have
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# got put here
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test -f libF77/makefile && mv libF77/makefile libF77/makefile.ori
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test -f libI77/makefile && mv libI77/makefile libI77/makefile.ori
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test -f libU77/makefile && mv libU77/makefile libU77/makefile.ori
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# Get the version trigger filename from the toplevel
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if [[ "${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)
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AC_OUTPUT(Makefile g2c.h libI77/Makefile libF77/Makefile)
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dnl We might have configuration options to:
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dnl * change unit preconnexion in libI77/err.c (f_init.c)
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dnl * -DALWAYS_FLUSH in libI77
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dnl * -DOMIT_BLANK_CC in libI77
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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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