dnl  AUTOCONF configuration for CLN
dnl  Bruno Haible 8.1.1999
dnl
dnl  configure.in ---<autoconf>--->> configure
dnl
dnl  configure    ---<sh>--->> config.status
dnl                      --->> include/cl_config.h
dnl          Makefile.in --->> Makefile
dnl      src/Makefile.in --->> src/Makefile
dnl
dnl  Makefile   ---<make>--->> libcln.a
dnl
dnl
AC_INIT(src/integer/gcd/cl_I_gcd.cc)
AC_CONFIG_HEADER(include/cl_config.h src/base/cl_base_config.h src/base/cl_gmpconfig.h src/float/cl_float_config.h src/timing/cl_t_config.h)
AC_PROG_MAKE_SET
dnl This piece of sed script replaces every line containing '@subdir@'
dnl by several consecutive lines, each referencing one subdir.
extrasub="$extrasub"'
/@subdir@/{
h
g
s/@subdir@/src/
p
g
s/@subdir@/tests/
p
g
s/@subdir@/benchmarks/
p
g
s/@subdir@/examples/
p
g
s/@subdir@/doc/
p
d
}
'
dnl
dnl           checks for programs
dnl
AC_PROG_CC
                      dnl sets variable CC
AC_PROG_CPP
                      dnl sets variable CPP
AC_PROG_CXX
                      dnl sets variable CXX
AC_PROG_CXXCPP
                      dnl sets variable CXXCPP
CL_AS_UNDERSCORE
                      dnl sets variable AS_UNDERSCORE, DEFS ASM_UNDERSCORE
CL_PROG_RANLIB
                      dnl sets variable RANLIB
CL_PROG_INSTALL
                      dnl sets variables INSTALL, INSTALL_DATA, INSTALL_PROGRAM
dnl
dnl           check for host type
dnl
CL_CANONICAL_HOST(autoconf)
                      dnl sets variables host, host_cpu, host_vendor, host_os
CL_CANONICAL_HOST_CPU
                      dnl DEFS __${host_cpu}__
dnl
dnl           check for build configuration
dnl
PACKAGE=cln
AM_DISABLE_SHARED
AM_PROG_LIBTOOL
dnl Libtool's library version information for CLN.
dnl (Not to be confused with CLN's release number.)
dnl Making new releases:
dnl * increment CLN_REVISION,
dnl * if any functions/classes have been added, removed or changed, increment
dnl   CLN_CURRENT and set CLN_REVISION to 0,
dnl * if any functions/classes have been added, increment CLN_AGE,
dnl * if backwards compatibility has been broken, set CLN_AGE to 0.
CLN_CURRENT=0
CLN_REVISION=1
CLN_AGE=0
AC_SUBST(CLN_CURRENT)
AC_SUBST(CLN_REVISION)
AC_SUBST(CLN_AGE)
                      dnl sets variable LIBTOOL
dnl
dnl           checks for compiler characteristics
dnl
AC_LANG_CPLUSPLUS
dnl
CL_BOOL
                      dnl DEFS HAVE_BOOL, bool
CL_LONGLONG
                      dnl DEFS HAVE_LONGLONG
CL_LONGDOUBLE
                      dnl DEFS HAVE_LONGDOUBLE
CL_TEMPLATE_NULL
                      dnl DEFS HAVE_TEMPLATE_NULL
CL_GLOBAL_CONSTRUCTORS
                      dnl DEFS CL_GLOBAL_CONSTRUCTOR_PREFIX, CL_GLOBAL_DESTRUCTOR_PREFIX
dnl
dnl           checks for header files
dnl
CL_UNISTD_H
                      dnl DEFS HAVE_UNISTD_H if exist unistd.h
dnl
dnl           checks for typedefs
dnl
dnl
dnl           checks for functions and declarations
dnl
CL_ALLOCA
                      dnl set variable ALLOCA, DEFS NO_ALLOCA
CL_FPU_CONTROL
                      dnl DEFS HAVE_FPU_CONTROL_T, HAVE_SETFPUCW
CL_GETTIMEOFDAY
                      dnl DEFS HAVE_GETTIMEOFDAY, GETTIMEOFDAY_DOTS, GETTIMEOFDAY_TZP_T
CL_FTIME
                      dnl DEFS HAVE_FTIME
CL_TIMES_CLOCK
                      dnl DEFS HAVE_TIMES_CLOCK
CL_RUSAGE
                      dnl DEFS HAVE_SYS_RESOURCE_H, HAVE_GETRUSAGE, HAVE_SYS_TIMES_H
CL_PERROR
                      dnl DEFS HAVE_PERROR_DECL
dnl
dnl           checks for compiler characteristics
dnl
CL_CHAR_UNSIGNED
                      dnl DEFS __CHAR_UNSIGNED__ if char is unsigned
test -d 'include' || mkdir 'include'
CL_MACHINE([integer types and behaviour],${srcdir}/autoconf/intparam.c,include/cl_intparam.h,cl_cv_file_intparam_h)
                      dnl builds include/cl_intparam.h
CL_MACHINE([floating-point types and behaviour],${srcdir}/autoconf/floatparam.c,include/cl_floatparam.h,cl_cv_file_floatparam_h)
                      dnl builds include/cl_floatparam.h
dnl
dnl           interfacing to GNU gmp (must be at least version 3)
dnl
AC_ARG_WITH(gmp, [  --with-gmp              use external fast low-level functions from GNU gmp3.
                          [default=yes]], ,with_gmp="yes")
if test "$with_gmp" = yes; then
dnl Is the gmp header file new enough? (i.e. >= 3.0)
  AC_CACHE_CHECK([for recent enough gmp.h], cl_cv_new_gmp_h, [
    AC_TRY_CPP([#include <gmp.h>
#if !defined(__GNU_MP_VERSION) || (__GNU_MP_VERSION < 3)
 #error "ancient gmp.h"
#endif],
cl_cv_new_gmp_h="yes", cl_cv_new_gmp_h="no")
])
if test "$cl_cv_new_gmp_h" = no; then with_gmp="no"; fi
if test "$with_gmp" = yes; then
dnl Does the library match the header file have 3.0 features?
  AC_CACHE_CHECK([for working libgmp], cl_cv_new_libgmp, [
    SAVELIBS=$LIBS
    LIBS="$LIBS -lgmp"
    AC_TRY_LINK([#include <gmp.h>],[mpn_divexact_by3(0,0,0)],
cl_cv_new_libgmp="yes", cl_cv_new_libgmp="no"; LIBS=$SAVELIBS)
])
if test "$cl_cv_new_libgmp" = no; then with_gmp="no"; fi
fi
fi
if test "$with_gmp" = yes; then
  AC_DEFINE(CL_USE_GMP)
else
  AC_MSG_WARN([disabling external GNU MP library])
fi
dnl
dnl           That's it.
dnl
for f in 'tests/.gdbinit'; do
  if test '!' -f "$f"; then
    echo "creating $f"
changequote(,)dnl
    g=`echo "$f" | sed -e 's,/[^/]*$,,'`
changequote([,])dnl
    test "$g" = "$f" || test -d "$g" || mkdir "$g"
    cp "$srcdir/$f" "$f"
  fi
done
AC_OUTPUT(Makefile src/Makefile tests/Makefile benchmarks/Makefile examples/Makefile doc/Makefile)