| 1 | dnl This is the newlib/libm configure.in file. |
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| 2 | dnl Process this file with autoconf to produce a configure script. |
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| 3 | |
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| 4 | AC_PREREQ(2.59) |
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| 5 | AC_INIT([newlib],[NEWLIB_VERSION]) |
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| 6 | AC_CONFIG_SRCDIR([libm.texinfo]) |
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| 7 | |
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| 8 | AC_ARG_ENABLE(newlib_hw_fp, |
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| 9 | [ --enable-newlib-hw-fp Turn on hardware floating point math], |
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| 10 | [case "${enableval}" in |
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| 11 | yes) newlib_hw_fp=true ;; |
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| 12 | no) newlib_hw_fp=false ;; |
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| 13 | *) AC_MSG_ERROR(bad value ${enableval} for --enable-newlib-hw-fp) ;; |
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| 14 | esac],[newlib_hw_fp=false]) |
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| 15 | AM_CONDITIONAL(NEWLIB_HW_FP, test x$newlib_hw_fp = xtrue) |
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| 16 | |
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| 17 | dnl Autoconf 2.59 doesn't support the AC_TYPE_LONG_DOUBLE macro. Instead of: |
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| 18 | dnl AC_TYPE_LONG_DOUBLE |
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| 19 | dnl AM_CONDITIONAL(HAVE_LONG_DOUBLE, test x"$ac_cv_type_long_double" = x"yes") |
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| 20 | dnl we specify our own long double test. |
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| 21 | AC_CACHE_CHECK([Checking long double support], [acnewlib_cv_type_long_double],[dnl |
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| 22 | cat > conftest.c <<EOF |
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| 23 | int main() { |
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| 24 | long double x = 0.0L; |
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| 25 | return 0; |
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| 26 | } |
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| 27 | EOF |
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| 28 | if AC_TRY_COMMAND([${CC} $CFLAGS $CPPFLAGS -c conftest.c 1>&AS_MESSAGE_LOG_FD]) |
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| 29 | then |
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| 30 | acnewlib_cv_type_long_double=yes |
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| 31 | else |
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| 32 | acnewlib_cv_type_long_double=no |
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| 33 | fi |
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| 34 | rm -f conftest*]) |
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| 35 | AM_CONDITIONAL(HAVE_LONG_DOUBLE, test x"$acnewlib_cv_type_long_double" = x"yes") |
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| 36 | |
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| 37 | dnl Can't be done in NEWLIB_CONFIGURE because that confuses automake. |
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| 38 | AC_CONFIG_AUX_DIR(../..) |
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| 39 | |
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| 40 | NEWLIB_CONFIGURE(..) |
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| 41 | |
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| 42 | dnl We have to enable libtool after NEWLIB_CONFIGURE because if we try and |
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| 43 | dnl add it into NEWLIB_CONFIGURE, executable tests are made before the first |
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| 44 | dnl line of the macro which fail because appropriate LDFLAGS are not set. |
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| 45 | _LT_DECL_SED |
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| 46 | _LT_PROG_ECHO_BACKSLASH |
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| 47 | if test "${use_libtool}" = "yes"; then |
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| 48 | AC_LIBTOOL_WIN32_DLL |
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| 49 | AM_PROG_LIBTOOL |
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| 50 | fi |
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| 51 | |
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| 52 | AC_CONFIG_SUBDIRS(machine) |
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| 53 | |
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| 54 | LIBM_MACHINE_LIB= |
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| 55 | if test -n "${libm_machine_dir}"; then |
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| 56 | if test "${use_libtool}" = "yes"; then |
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| 57 | LIBM_MACHINE_LIB=machine/${libm_machine_dir}/lib${libm_machine_dir}.${aext} |
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| 58 | else |
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| 59 | LIBM_MACHINE_LIB=machine/lib.${aext} |
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| 60 | fi |
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| 61 | fi |
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| 62 | |
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| 63 | AC_SUBST(LIBM_MACHINE_LIB) |
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| 64 | |
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| 65 | AC_CONFIG_FILES([Makefile math/Makefile mathfp/Makefile common/Makefile complex/Makefile]) |
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| 66 | AC_OUTPUT |
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