diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 101 |
1 files changed, 100 insertions, 1 deletions
@@ -1,5 +1,5 @@ #! /bin/sh -# From configure.in Id: configure.in 17339 2009-08-12 02:27:55Z lrknox . +# From configure.in Id: configure.in 17368 2009-08-16 22:06:45Z lrknox . # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.61 for HDF5 1.8.3-snap7. # @@ -50650,6 +50650,105 @@ else echo "${ECHO_T}no" >&6; } fi +{ echo "$as_me:$LINENO: checking if accurately converting unsigned long to float values" >&5 +echo $ECHO_N "checking if accurately converting unsigned long to float values... $ECHO_C" >&6; } + +if test "${hdf5_ulong_to_float_accurate+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if test "$cross_compiling" = yes; then + { { echo "$as_me:$LINENO: error: cannot run test program while cross compiling +See \`config.log' for more details." >&5 +echo "$as_me: error: cannot run test program while cross compiling +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ + + int main(void) + { + int ret = 0; + unsigned long l1; + unsigned long l2; + unsigned long l3; + float f1; + float f2; + float f3; + + + if(sizeof(unsigned long)==8) { + l1 = 0xffffffffffffffffUL; + l2 = 0xffffffffffff0000UL; + l3 = 0xf000000000000000UL; + + f1 = (float)l1; + f2 = (float)l2; + f3 = (float)l3; + + if((f1 < 0) || (f2 < 0) || (f3 < 0)) + ret = 1; + } + +done: + exit(ret); + } + +_ACEOF +rm -f conftest$ac_exeext +if { (ac_try="$ac_link" +case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_link") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); } && { ac_try='./conftest$ac_exeext' + { (case "(($ac_try" in + *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;; + *) ac_try_echo=$ac_try;; +esac +eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5 + (eval "$ac_try") 2>&5 + ac_status=$? + echo "$as_me:$LINENO: \$? = $ac_status" >&5 + (exit $ac_status); }; }; then + hdf5_ulong_to_float_accurate=yes +else + echo "$as_me: program exited with status $ac_status" >&5 +echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +( exit $ac_status ) +hdf5_ulong_to_float_accurate=no +fi +rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext +fi + + +fi + + +if test ${hdf5_ulong_to_float_accurate} = "yes"; then + +cat >>confdefs.h <<\_ACEOF +#define ULONG_TO_FLOAT_ACCURATE 1 +_ACEOF + + { echo "$as_me:$LINENO: result: yes" >&5 +echo "${ECHO_T}yes" >&6; } +else + { echo "$as_me:$LINENO: result: no" >&5 +echo "${ECHO_T}no" >&6; } +fi + + { echo "$as_me:$LINENO: checking if accurately converting unsigned long long to floating-point values" >&5 echo $ECHO_N "checking if accurately converting unsigned long long to floating-point values... $ECHO_C" >&6; } |