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m4/mpfr.m4
62 строки
2 KB
john haque
Finish MPFR changes and clean up code.
26 фев 2012, 16:57
26 фев 2012, 16:57
1c06c5c
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dnl Check for MPFR and dependencies dnl Copyright (C) 2004, 2005 Free Software Foundation, Inc. dnl dnl This file is free software, distributed under the terms of the GNU dnl General Public License. As a special exception to the GNU General dnl Public License, this file may be distributed as part of a program dnl that contains a configuration script generated by Autoconf, under dnl the same distribution terms as the rest of that program. dnl dnl Defines HAVE_MPFR to 1 if a working MPFR/GMP setup is dnl found, and sets @LIBMPFR@ to the necessary libraries. AC_DEFUN([GNUPG_CHECK_MPFR], [ AC_ARG_WITH([mpfr], AC_HELP_STRING([--with-mpfr=DIR], [look for the mpfr and gmp libraries in DIR]), [_do_mpfr=$withval],[_do_mpfr=yes]) if test "$_do_mpfr" != "no" ; then if test -d "$withval" ; then CPPFLAGS="${CPPFLAGS} -I$withval/include" LDFLAGS="${LDFLAGS} -L$withval/lib" fi _mpfr_save_libs=$LIBS _combo="-lmpfr -lgmp" LIBS="$LIBS $_combo" AC_MSG_CHECKING([whether mpfr via \"$_combo\" is present and usable]) AC_LINK_IFELSE([ AC_LANG_PROGRAM([ #include <stdio.h> #include <mpfr.h> #include <gmp.h> ],[ mpfr_t p; mpz_t z; mpfr_init(p); mpz_init(z); mpfr_printf("%Rf%Zd", p, z); mpfr_clear(p); mpz_clear(z); ])],_found_mpfr=yes,_found_mpfr=no) AC_MSG_RESULT([$_found_mpfr]) LIBS=$_mpfr_save_libs if test $_found_mpfr = yes ; then AC_DEFINE(HAVE_MPFR,1, [Define to 1 if you have fully functional mpfr and gmp libraries.]) AC_SUBST(LIBMPFR,$_combo) break fi unset _mpfr_save_libs unset _combo unset _found_mpfr fi ])dnl