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AC_PREREQ(2.69)
AC_INIT([Haskell integer (GMP)], [1.0], [libraries@haskell.org], [integer])
# Safety check: Ensure that we are in the correct source directory.
AC_CONFIG_SRCDIR([cbits/wrappers.c])
dnl make extensions visible to allow feature-tests to detect them lateron
AC_USE_SYSTEM_EXTENSIONS
dnl--------------------------------------------------------------------
dnl * Deal with arguments telling us gmp is somewhere odd
dnl--------------------------------------------------------------------
AC_ARG_WITH([gmp-includes],
[AS_HELP_STRING([--with-gmp-includes],
[directory containing gmp.h])],
[GMP_INCLUDE_DIRS=$withval; CPPFLAGS="-I$withval"],
[GMP_INCLUDE_DIRS=])
AC_ARG_WITH([gmp-libraries],
[AS_HELP_STRING([--with-gmp-libraries],
[directory containing gmp library])],
[GMP_LIB_DIRS=$withval; LDFLAGS="-L$withval"],
[GMP_LIB_DIRS=])
AC_ARG_WITH([gmp-framework-preferred],
[AS_HELP_STRING([--with-gmp-framework-preferred],
[on OSX, prefer the GMP framework to the gmp lib])],
[GMP_PREFER_FRAMEWORK=YES],
[GMP_PREFER_FRAMEWORK=NO])
AC_ARG_WITH([intree-gmp],
[AS_HELP_STRING([--with-intree-gmp],
[force using the in-tree GMP])],
[GMP_FORCE_INTREE=YES],
[GMP_FORCE_INTREE=NO])
dnl--------------------------------------------------------------------
dnl * Detect gmp
dnl--------------------------------------------------------------------
HaveLibGmp=NO
GMP_LIBS=
HaveFrameworkGMP=NO
GMP_FRAMEWORK=
HaveSecurePowm=0
if test "$GMP_FORCE_INTREE" != "YES"
then
if test "$GMP_PREFER_FRAMEWORK" = "YES"
then
LOOK_FOR_GMP_FRAMEWORK
LOOK_FOR_GMP_LIB
else
LOOK_FOR_GMP_LIB
LOOK_FOR_GMP_FRAMEWORK
fi
fi
AC_MSG_CHECKING([whether to use in-tree GMP])
if test "$HaveFrameworkGMP" = "YES" || test "$HaveLibGmp" = "YES"
then
AC_MSG_RESULT([no])
UseIntreeGmp=0
AC_CHECK_HEADER([gmp.h], , [AC_MSG_ERROR([Cannot find gmp.h])])
AC_MSG_CHECKING([GMP version])
AC_COMPUTE_INT(GhcGmpVerMj, __GNU_MP_VERSION, [#include <gmp.h>],
AC_MSG_ERROR([Unable to get value of __GNU_MP_VERSION]))
AC_COMPUTE_INT(GhcGmpVerMi, __GNU_MP_VERSION_MINOR, [#include <gmp.h>],
AC_MSG_ERROR([Unable to get value of __GNU_MP_VERSION_MINOR]))
AC_COMPUTE_INT(GhcGmpVerPl, __GNU_MP_VERSION_PATCHLEVEL, [#include <gmp.h>],
AC_MSG_ERROR([Unable to get value of __GNU_MP_VERSION_PATCHLEVEL]))
AC_MSG_RESULT([$GhcGmpVerMj.$GhcGmpVerMi.$GhcGmpVerPl])
else
AC_MSG_RESULT([yes])
UseIntreeGmp=1
HaveSecurePowm=1
AC_MSG_CHECKING([GMP version])
GhcGmpVerMj=5
GhcGmpVerMi=0
GhcGmpVerPl=4
AC_MSG_RESULT([$GhcGmpVerMj.$GhcGmpVerMi.$GhcGmpVerPl])
fi
dnl--------------------------------------------------------------------
dnl * Make sure we got some form of gmp
dnl--------------------------------------------------------------------
AC_SUBST(GMP_INCLUDE_DIRS)
AC_SUBST(GMP_LIBS)
AC_SUBST(GMP_LIB_DIRS)
AC_SUBST(GMP_FRAMEWORK)
AC_SUBST(HaveLibGmp)
AC_SUBST(HaveFrameworkGMP)
AC_SUBST(HaveSecurePowm)
AC_SUBST(UseIntreeGmp)
AC_SUBST(GhcGmpVerMj)
AC_SUBST(GhcGmpVerMi)
AC_SUBST(GhcGmpVerPl)
AC_CONFIG_FILES([integer-gmp.buildinfo config.mk include/HsIntegerGmp.h])
dnl--------------------------------------------------------------------
dnl * Generate output files
dnl--------------------------------------------------------------------
AC_OUTPUT
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