diff options
| -rw-r--r-- | configure.ac | 21 | ||||
| -rw-r--r-- | m4/mpc.m4 | 60 |
2 files changed, 62 insertions, 19 deletions
diff --git a/configure.ac b/configure.ac index 4aa8431..c382ed6 100644 --- a/configure.ac +++ b/configure.ac @@ -121,32 +121,15 @@ esac # Checks for header files. AC_HEADER_STDC -AC_CHECK_HEADERS([complex.h locale.h inttypes.h stdint.h limits.h unistd.h sys/time.h]) +AC_CHECK_HEADERS([locale.h inttypes.h stdint.h limits.h unistd.h sys/time.h]) AC_HEADER_TIME +MPC_COMPLEX_H # Checks for typedefs, structures, and compiler characteristics. AC_C_CONST AC_TYPE_SIZE_T # Checks for libraries. -AC_CHECK_HEADERS( - [complex.h], - [ - AC_MSG_CHECKING(whether creal and cimag can be used without libm) - AC_LINK_IFELSE( - [AC_LANG_PROGRAM( - [[#include <complex.h>]], - [[complex double x = 1.0 + 2.0 * I; return (creal (x) + cimag (x));]] - )], - [AC_MSG_RESULT([yes])], - [ - AC_MSG_RESULT([no]) - AC_CHECK_LIB([m], [creal]) - ] - ) - ] - ) - AC_CHECK_LIB([gmp], [__gmpz_init], [LIBS="-lgmp $LIBS"], [AC_MSG_ERROR([libgmp not found or uses a different ABI.])]) @@ -19,6 +19,66 @@ along with the MPC Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +# +# SYNOPSIS +# +# +MPC_COMPLEX_H +# +# DESCRIPTION +# +# Check whether complex.h is usable; if yes, define HAVE_COMPLEX_H. +# On solaris, one also needs the libm; in that case, it is added to LIB, +# and HAVE_LIBM is defined. +# +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_MSG_CHECKING(whether creal and cimag can be used without libm) + AC_LINK_IFELSE( + [MPC_CONFTEST], + [ + AC_MSG_RESULT([yes]) + AC_DEFINE([HAVE_COMPLEX_H], [1], [complex.h present and usable]) + ], + [ + AC_MSG_RESULT([no]) + AC_CHECK_LIB([m], [creal], + [ + AC_MSG_CHECKING(whether creal and cimag can be used with libm) + AC_LINK_IFELSE( + [MPC_CONFTEST], + [ + AC_MSG_RESULT([yes]) + LIBS="-lm $LIBS" + AC_DEFINE([HAVE_LIBM], [1], [libm needed for creal]) + AC_DEFINE([HAVE_COMPLEX_H], [1], [complex.h present and usable]) + ], + [ + AC_MSG_RESULT([no]) + ] + ) + ] + ) + ] + ) + ] + ) +]) + + # # SYNOPSIS # |