2009-05-15 Craig Howland <howland@LGSInnovations.com>
* configure.in: Add configuration test for long double type existing
and set flag _HAVE_LONG_DOUBLE if true. Fix INIT_ARRAY (.init_array)
and _LDBL_EQ_DBL tests to not link so that will work with
cross-compilers.
* configure: Regenerated.
* Makefile.in: Ditto.
* newlib.hin: Add _HAVE_LONG_DOUBLE flag.
* libc/include/math.h: Change non-builtin defines for HUGE_VAL,
HUGE_VALF, and HUGE_VALL to be constant expressions. Add definitions
for the non-builtin case for INFINITY and NAN. Gate HUGE_VALL and
union __ldmath definitions with (new) _HAVE_LONG_DOUBLE.
*libm/common/s_infconst.c: Change definitions to use values from
float.h instead of non-so-portable integer forms. Mark as being
deprecated (because now removed from math.h, are not used anywhere
in Newlib, itself).
This commit is contained in:
Jeff Johnston
74
newlib/configure
vendored
74
newlib/configure
vendored
@ -462,7 +462,7 @@ ac_subdirs_all="$ac_subdirs_all libc"
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ac_subdirs_all="$ac_subdirs_all libm"
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ac_subdirs_all="$ac_subdirs_all doc"
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ac_subdirs_all="$ac_subdirs_all iconvdata"
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ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS MAY_SUPPLY_SYSCALLS_TRUE MAY_SUPPLY_SYSCALLS_FALSE newlib_basedir build build_cpu build_vendor build_os host host_cpu host_vendor host_os INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar CC DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE AS ac_ct_AS AR ac_ct_AR RANLIB ac_ct_RANLIB READELF ac_ct_READELF MAINTAINER_MODE_TRUE MAINTAINER_MODE_FALSE MAINT CCAS CCASFLAGS NEWLIB_CFLAGS LDFLAGS ELIX_LEVEL_0_TRUE ELIX_LEVEL_0_FALSE ELIX_LEVEL_1_TRUE ELIX_LEVEL_1_FALSE ELIX_LEVEL_2_TRUE ELIX_LEVEL_2_FALSE ELIX_LEVEL_3_TRUE ELIX_LEVEL_3_FALSE ELIX_LEVEL_4_TRUE ELIX_LEVEL_4_FALSE USE_LIBTOOL_TRUE USE_LIBTOOL_FALSE OBJEXT oext aext lpfx libm_machine_dir machine_dir sys_dir SED DLLTOOL ac_ct_DLLTOOL OBJDUMP ac_ct_OBJDUMP LIBTOOL CFLAGS CPPFLAGS ac_ct_CC EXEEXT EGREP FGREP GREP LD DUMPBIN ac_ct_DUMPBIN NM LN_S lt_ECHO DSYMUTIL ac_ct_DSYMUTIL NMEDIT ac_ct_NMEDIT LIPO ac_ct_LIPO OTOOL ac_ct_OTOOL OTOOL64 ac_ct_OTOOL64 CPP NEWLIB_HW_FP_TRUE NEWLIB_HW_FP_FALSE CC_FOR_NEWLIB subdirs HAVE_DOC_TRUE HAVE_DOC_FALSE EXTRA_DIRS CRT0 CRT0_DIR CRT1 CRT1_DIR LIBM_MACHINE_OBJECTLIST MACHINE_OBJECTLIST SYS_OBJECTLIST SYS_MACH_OBJECTLIST POSIX_OBJECTLIST SIGNAL_OBJECTLIST SYSCALL_OBJECTLIST UNIX_OBJECTLIST STDIO64_OBJECTLIST CC_FOR_BUILD libc_cv_initfinit_array LIBOBJS LTLIBOBJS'
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ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS MAY_SUPPLY_SYSCALLS_TRUE MAY_SUPPLY_SYSCALLS_FALSE newlib_basedir build build_cpu build_vendor build_os host host_cpu host_vendor host_os INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar CC DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE AS ac_ct_AS AR ac_ct_AR RANLIB ac_ct_RANLIB READELF ac_ct_READELF MAINTAINER_MODE_TRUE MAINTAINER_MODE_FALSE MAINT CCAS CCASFLAGS NEWLIB_CFLAGS LDFLAGS ELIX_LEVEL_0_TRUE ELIX_LEVEL_0_FALSE ELIX_LEVEL_1_TRUE ELIX_LEVEL_1_FALSE ELIX_LEVEL_2_TRUE ELIX_LEVEL_2_FALSE ELIX_LEVEL_3_TRUE ELIX_LEVEL_3_FALSE ELIX_LEVEL_4_TRUE ELIX_LEVEL_4_FALSE USE_LIBTOOL_TRUE USE_LIBTOOL_FALSE OBJEXT oext aext lpfx libm_machine_dir machine_dir sys_dir SED DLLTOOL ac_ct_DLLTOOL OBJDUMP ac_ct_OBJDUMP LIBTOOL CFLAGS CPPFLAGS ac_ct_CC EXEEXT EGREP FGREP GREP LD DUMPBIN ac_ct_DUMPBIN NM LN_S lt_ECHO DSYMUTIL ac_ct_DSYMUTIL NMEDIT ac_ct_NMEDIT LIPO ac_ct_LIPO OTOOL ac_ct_OTOOL OTOOL64 ac_ct_OTOOL64 CPP NEWLIB_HW_FP_TRUE NEWLIB_HW_FP_FALSE CC_FOR_NEWLIB subdirs HAVE_DOC_TRUE HAVE_DOC_FALSE EXTRA_DIRS CRT0 CRT0_DIR CRT1 CRT1_DIR LIBM_MACHINE_OBJECTLIST MACHINE_OBJECTLIST SYS_OBJECTLIST SYS_MACH_OBJECTLIST POSIX_OBJECTLIST SIGNAL_OBJECTLIST SYSCALL_OBJECTLIST UNIX_OBJECTLIST STDIO64_OBJECTLIST CC_FOR_BUILD libc_cv_initfinit_array HAVE_LONG_DOUBLE_TRUE HAVE_LONG_DOUBLE_FALSE LIBOBJS LTLIBOBJS'
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ac_subst_files=''
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# Initialize some variables set by options.
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@ -11874,8 +11874,8 @@ int __start (void) { return 0; }
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int foo (void) { return 1; }
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int (*fp) (void) __attribute__ ((section (".init_array"))) = foo;
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EOF
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if { ac_try='${CC} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest conftest.c
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-static -nostartfiles -nostdlib 1>&5'
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if { ac_try='${CC} $CFLAGS $CPPFLAGS -c -o conftest conftest.c
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1>&5'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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@ -11902,8 +11902,59 @@ _ACEOF
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fi
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echo "$as_me:$LINENO: checking long double equals double" >&5
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echo $ECHO_N "checking long double equals double... $ECHO_C" >&6
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echo "$as_me:$LINENO: checking whether long double type exists" >&5
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echo $ECHO_N "checking whether long double type exists... $ECHO_C" >&6
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if test "${acnewlib_cv_type_long_double+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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cat > conftest.c <<EOF
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/* Check two ways: float.h defines and direct type declaration. */
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#include <float.h>
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#if defined(LDBL_MANT_DIG)
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#define _HAVE_LONG_DOUBLE
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#else
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#error "LDBL != DBL"
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#endif
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long double test() {
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long double ld = 0.0L;
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return ld;
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}
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EOF
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if { ac_try='${CC} $CFLAGS $CPPFLAGS -c -o conftest.o conftest.c
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1>&5'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); }; }
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then
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acnewlib_cv_type_long_double=yes;
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else
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acnewlib_cv_type_long_double=no;
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fi
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rm -f conftest*
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fi
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echo "$as_me:$LINENO: result: $acnewlib_cv_type_long_double" >&5
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echo "${ECHO_T}$acnewlib_cv_type_long_double" >&6
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if test $acnewlib_cv_type_long_double = yes; then
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cat >>confdefs.h <<_ACEOF
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#define _HAVE_LONG_DOUBLE 1
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_ACEOF
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fi
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if test x"$acnewlib_cv_type_long_double" = x"yes"; then
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HAVE_LONG_DOUBLE_TRUE=
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HAVE_LONG_DOUBLE_FALSE='#'
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else
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HAVE_LONG_DOUBLE_TRUE='#'
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HAVE_LONG_DOUBLE_FALSE=
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fi
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echo "$as_me:$LINENO: checking whether long double equals double" >&5
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echo $ECHO_N "checking whether long double equals double... $ECHO_C" >&6
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if test "${newlib_ldbl_eq_dbl+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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@ -11916,8 +11967,8 @@ else
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#error "LDBL != DBL"
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#endif
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EOF
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if { ac_try='${CC} $CFLAGS $CPPFLAGS $LDFLAGS -o conftest conftest.c
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-static -nostartfiles -nostdlib 1>&5'
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if { ac_try='${CC} $CFLAGS $CPPFLAGS -c -o conftest.o conftest.c
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1>&5'
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{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
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(eval $ac_try) 2>&5
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ac_status=$?
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@ -12123,6 +12174,13 @@ echo "$as_me: error: conditional \"HAVE_DOC\" was never defined.
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Usually this means the macro was only invoked conditionally." >&2;}
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{ (exit 1); exit 1; }; }
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fi
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if test -z "${HAVE_LONG_DOUBLE_TRUE}" && test -z "${HAVE_LONG_DOUBLE_FALSE}"; then
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{ { echo "$as_me:$LINENO: error: conditional \"HAVE_LONG_DOUBLE\" was never defined.
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Usually this means the macro was only invoked conditionally." >&5
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echo "$as_me: error: conditional \"HAVE_LONG_DOUBLE\" was never defined.
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Usually this means the macro was only invoked conditionally." >&2;}
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{ (exit 1); exit 1; }; }
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fi
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: ${CONFIG_STATUS=./config.status}
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ac_clean_files_save=$ac_clean_files
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@ -13050,6 +13108,8 @@ s,@UNIX_OBJECTLIST@,$UNIX_OBJECTLIST,;t t
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s,@STDIO64_OBJECTLIST@,$STDIO64_OBJECTLIST,;t t
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s,@CC_FOR_BUILD@,$CC_FOR_BUILD,;t t
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s,@libc_cv_initfinit_array@,$libc_cv_initfinit_array,;t t
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s,@HAVE_LONG_DOUBLE_TRUE@,$HAVE_LONG_DOUBLE_TRUE,;t t
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s,@HAVE_LONG_DOUBLE_FALSE@,$HAVE_LONG_DOUBLE_FALSE,;t t
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s,@LIBOBJS@,$LIBOBJS,;t t
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s,@LTLIBOBJS@,$LTLIBOBJS,;t t
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CEOF
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