129 lines
4.1 KiB
Plaintext
129 lines
4.1 KiB
Plaintext
dnl Copyright (C) 1988 Eleftherios Gkioulekas <lf@amath.washington.edu>
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dnl
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dnl This program is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 3 of the License, or
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dnl (at your option) any later version.
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dnl
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dnl This program is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU General Public License
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dnl along with this program; if not, write to the Free Software
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dnl Foundation, Inc., 51 Franklin Street, Boston, MA 02110-1301, USA.
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dnl
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dnl As a special exception to the GNU General Public License, if you
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dnl distribute this file as part of a program that contains a configuration
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dnl script generated by Autoconf, you may include it under the same
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dnl distribution terms that you use for the rest of that program.
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# --------------------------------------------------------------------------
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# Check whether the C++ compiler accepts a certain flag
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# If it does it adds the flag to CXXFLAGS
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# If it does not then it returns an error to lf_ok
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# Usage:
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# LF_CHECK_CXX_FLAG(-flag1 -flag2 -flag3 ...)
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# -------------------------------------------------------------------------
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AC_DEFUN([LF_CHECK_CXX_FLAG],[
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echo 'void f(){}' > conftest.cc
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for i in $1
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do
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AC_MSG_CHECKING([whether $CXX accepts $i])
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if test -z "`${CXX} $i -c conftest.cc 2>&1`"
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then
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CXXFLAGS="${CXXFLAGS} $i"
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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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done
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rm -f conftest.cc conftest.o
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])
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# --------------------------------------------------------------------------
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# Check whether the C compiler accepts a certain flag
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# If it does it adds the flag to CFLAGS
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# If it does not then it returns an error to lf_ok
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# Usage:
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# LF_CHECK_CC_FLAG(-flag1 -flag2 -flag3 ...)
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# -------------------------------------------------------------------------
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AC_DEFUN([LF_CHECK_CC_FLAG],[
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echo 'void f(){}' > conftest.c
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for i in $1
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do
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AC_MSG_CHECKING([whether $CC accepts $i])
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if test -z "`${CC} $i -c conftest.c 2>&1`"
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then
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CFLAGS="${CFLAGS} $i"
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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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done
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rm -f conftest.c conftest.o
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])
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# --------------------------------------------------------------------------
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# Check whether the Fortran compiler accepts a certain flag
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# If it does it adds the flag to FFLAGS
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# If it does not then it returns an error to lf_ok
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# Usage:
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# LF_CHECK_F77_FLAG(-flag1 -flag2 -flag3 ...)
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# -------------------------------------------------------------------------
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AC_DEFUN([LF_CHECK_F77_FLAG],[
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cat << EOF > conftest.f
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c....:++++++++++++++++++++++++
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PROGRAM MAIN
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PRINT*,'Hello World!'
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END
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EOF
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for i in $1
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do
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AC_MSG_CHECKING([whether $F77 accepts $i])
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if test -z "`${F77} $i -c conftest.f 2>&1`"
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then
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FFLAGS="${FFLAGS} $i"
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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done
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rm -f conftest.f conftest.o
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])
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# ----------------------------------------------------------------------
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# Provide the configure script with an --with-warnings option that
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# turns on warnings. Call this command AFTER you have configured ALL your
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# compilers.
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# ----------------------------------------------------------------------
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AC_DEFUN([LF_SET_WARNINGS],[
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dnl Check for --with-warnings
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AC_MSG_CHECKING([whether user wants warnings])
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AC_ARG_WITH(warnings,
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[ --with-warnings Turn on warnings],
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[ lf_warnings=yes ], [ lf_warnings=no ])
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lf_warnings=yes # hard code for now -eb
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AC_MSG_RESULT($lf_warnings)
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dnl Warnings for the two main compilers
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cc_warning_flags="-Wall"
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cxx_warning_flags="-Wall -Woverloaded-virtual"
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if test $lf_warnings = yes
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then
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if test -n "${CC}"
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then
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LF_CHECK_CC_FLAG($cc_warning_flags)
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fi
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if test -n "${CXX}"
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then
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LF_CHECK_CXX_FLAG($cxx_warning_flags)
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fi
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fi
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])
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