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Diffstat (limited to 'mpc/m4/mpc.m4')
| -rw-r--r-- | mpc/m4/mpc.m4 | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/mpc/m4/mpc.m4 b/mpc/m4/mpc.m4 new file mode 100644 index 0000000000..3fdf78eb04 --- /dev/null +++ b/mpc/m4/mpc.m4 @@ -0,0 +1,240 @@ +# mpc.m4 +# +# Copyright (C) 2008, 2009, 2010, 2011, 2012 INRIA +# +# This file is part of GNU MPC. +# +# GNU MPC is free software; you can redistribute it and/or modify it under +# the terms of the GNU Lesser General Public License as published by the +# Free Software Foundation; either version 3 of the License, or (at your +# option) any later version. +# +# GNU MPC 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 Lesser General Public License for +# more details. +# +# You should have received a copy of the GNU Lesser General Public License +# along with this program. If not, see http://www.gnu.org/licenses/ . + + +# +# SYNOPSIS +# +# +# MPC_COMPLEX_H +# +# DESCRIPTION +# +# Check whether complex.h is usable; if yes, define HAVE_COMPLEX_H. +# +AC_DEFUN([MPC_COMPLEX_H], [ + AC_CHECK_HEADER( + [complex.h], + [ + m4_define( + [MPC_CONFTEST], + [ + AC_LANG_PROGRAM( + [[#include <complex.h>]], + [[complex double x = 1.0 + 2.0 * I; return (creal (x) + cimag (x));]] + ) + ] + ) + + AC_SEARCH_LIBS([creal], [m]) +# needed on Solaris + AC_MSG_CHECKING([whether creal, cimag and I can be used]) + AC_LINK_IFELSE( + [MPC_CONFTEST], + [ + AC_MSG_RESULT([yes]) + AC_DEFINE([HAVE_COMPLEX_H], [1], [complex.h present and usable]) + ], + [ + AC_MSG_RESULT([no, build without support for C complex numbers]) + ] + ) + ] + ) +]) + + +# +# SYNOPSIS +# +# +# MPC_C_CHECK_FLAG([FLAG,ACCUMULATOR]) +# +# DESCRIPTION +# +# Checks if the C compiler accepts the flag FLAG +# If yes, adds it to CFLAGS. + +AC_DEFUN([MPC_C_CHECK_FLAG], [ + AX_C_CHECK_FLAG($1,,,[CFLAGS="$CFLAGS $1"]) +]) + + +# +# SYNOPSIS +# +# +# MPC_C_CHECK_WARNINGFLAGS +# +# DESCRIPTION +# +# For development version only: Checks if gcc accepts warning flags. +# Adds accepted ones to CFLAGS. +# +AC_DEFUN([MPC_C_CHECK_WARNINGCFLAGS], [ + AC_REQUIRE([AC_PROG_GREP]) + if echo $VERSION | grep -c dev >/dev/null 2>&1 ; then + if test "x$GCC" = "xyes" -a "x$compiler" != "xicc" -a "x$compiler" != "xg++"; then + # enable -Werror for myself (Andreas Enge) + if test "x$USER" = "xenge"; then + MPC_C_CHECK_FLAG(-Werror) + fi + MPC_C_CHECK_FLAG(-g) + MPC_C_CHECK_FLAG(-std=c99) + MPC_C_CHECK_FLAG(-Wno-long-long) + MPC_C_CHECK_FLAG(-Wall) + MPC_C_CHECK_FLAG(-Wextra) + MPC_C_CHECK_FLAG(-Wdeclaration-after-statement) + MPC_C_CHECK_FLAG(-Wshadow) + MPC_C_CHECK_FLAG(-Wstrict-prototypes) + MPC_C_CHECK_FLAG(-Wmissing-prototypes) + MPC_C_CHECK_FLAG(-Wno-unused-value) + fi + fi +]) + + +# +# SYNOPSIS +# +# +# MPC_GMP_CC_CFLAGS +# +# DESCRIPTION +# +# Checks if CC and CFLAGS can be extracted from gmp.h +# essentially copied from mpfr +# +AC_DEFUN([MPC_GMP_CC_CFLAGS], [ + AC_MSG_CHECKING(for CC and CFLAGS in gmp.h) + # AC_PROG_CPP triggers the search for a C compiler; use hack instead + for cpp in /lib/cpp gcc cc c99 + do + test $cpp = /lib/cpp || cpp="$cpp -E" + echo foo > conftest.c + if $cpp $CPPFLAGS conftest.c > /dev/null 2> /dev/null ; then + # Get CC + echo "#include \"gmp.h\"" > conftest.c + echo "MPFR_OPTION __GMP_CC" >> conftest.c + GMP_CC=`$cpp $CPPFLAGS conftest.c 2> /dev/null | $EGREP MPFR_OPTION | $SED -e 's/MPFR_OPTION //g;s/ *" *//g'` + # Get CFLAGS + echo "#include \"gmp.h\"" > conftest.c + echo "MPFR_OPTION __GMP_CFLAGS" >> conftest.c + GMP_CFLAGS=`$cpp $CPPFLAGS conftest.c 2> /dev/null | $EGREP MPFR_OPTION | $SED -e 's/MPFR_OPTION //g;s/ *" *//g'` + break + fi + done + + if test "x$GMP_CFLAGS" = "x__GMP_CFLAGS" -o "x$GMP_CC" = "x__GMP_CC" ; then + AC_MSG_RESULT(no) + GMP_CC= + GMP_CFLAGS= + else + AC_MSG_RESULT(yes [CC=$GMP_CC CFLAGS=$GMP_CFLAGS]) + fi + + # Check for validity of CC and CFLAGS obtained from gmp.h + if test -n "$GMP_CC$GMP_CFLAGS" ; then + AC_MSG_CHECKING(for CC=$GMP_CC and CFLAGS=$GMP_CFLAGS) + echo "int main (void) { return 0; }" > conftest.c + if $GMP_CC $GMP_CFLAGS -o conftest conftest.c 2> /dev/null ; then + AC_MSG_RESULT(yes) + CC=$GMP_CC + CFLAGS=$GMP_CFLAGS + else + AC_MSG_RESULT(no) + fi + fi + + rm -f conftest* +]) + + +# +# SYNOPSIS +# +# +# MPC_WINDOWS +# +# DESCRIPTION +# +# Additional checks on windows +# libtool requires "-no-undefined" for win32 dll +# It also disables the tests involving the linking with LIBGMP if DLL +# +AC_DEFUN([MPC_WINDOWS], [ + if test "$enable_shared" = yes; then + MPC_LDFLAGS="$MPC_LDFLAGS -no-undefined" + AC_MSG_CHECKING(for DLL/static gmp) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include "gmp.h" +#if !__GMP_LIBGMP_DLL +#error +error +#endif + ]], [[]])],[AC_MSG_RESULT(DLL)],[ + AC_MSG_RESULT(static) + AC_MSG_ERROR([gmp is not available as a DLL: use --enable-static --disable-shared]) ]) + AC_MSG_CHECKING(for DLL/static mpfr) + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include "mpfr.h" +#if !__GMP_LIBGMP_DLL +#error +error +#endif + ]], [[]])],[AC_MSG_RESULT(DLL)],[ + AC_MSG_RESULT(static) + AC_MSG_ERROR([mpfr is not available as a DLL: use --enable-static --disable-shared]) ]) + else + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ +#include "gmp.h" +#if __GMP_LIBGMP_DLL +#error +error +#endif + ]], [[]])],[AC_MSG_RESULT(static)],[ + AC_MSG_RESULT(DLL) + AC_MSG_ERROR([gmp is only available as a DLL: use --disable-static --enable-shared]) ]) + fi + ;; +]) + + +# +# SYNOPSIS +# +# +# MPC_GITVERSION +# +# DESCRIPTION +# +# If current version string contains "dev", substitutes the short git hash +# into GITVERSION +# +AC_DEFUN([MPC_GITVERSION], [ + if echo $VERSION | grep -c dev >/dev/null 2>&1 ; then + AC_CHECK_PROG([HASGIT], [git], [yes], [no]) + AS_IF([test "x$HASGIT" = "xyes"], [ + AC_MSG_CHECKING([for current git version]) + GITVERSION=esyscmd([git rev-parse --short HEAD]) + AC_SUBST([GITVERSION]) + AC_MSG_RESULT([$GITVERSION]) + ]) + fi +]) |