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ICU-8453 On certain platforms, use static library optimization option when building static ICU libraries in release mode

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X-SVN-Rev: 30406
This commit is contained in:
Michael Ow 2011-07-21 23:38:15 +00:00
parent 88acd14026
commit 11e0c9a5bf
2 changed files with 81 additions and 0 deletions
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50
icu4c/source/configure vendored
View File

@ -5296,6 +5296,56 @@ fi
$as_echo "$enabled" >&6; }
# When building release static library, there might be some optimization flags we can use
if test "$ENABLE_STATIC" = "YES"; then
if test "$ENABLE_SHARED" != "YES"; then
if test "$ENABLE_RELEASE" = 1; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we can use static library optimization option" >&5
$as_echo_n "checking whether we can use static library optimization option... " >&6; }
CHECK_STATIC_OPT_FLAG=no
OLD_CPPFLAGS="${CPPFLAGS}"
OLD_LDFLAGS="${LDFLAGS}"
case "${host}" in
*-linux*|i*86-*-*bsd*|i*86-pc-gnu)
if test "$ac_cv_c_compiler_gnu" = yes; then
CPPFLAGS="${CPPFLAGS} -ffunction-sections -fdata-sections"
LDFLAGS="${LDFLAGS} -Wl,--gc-sections"
fi
;;
*)
;;
esac
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
CHECK_STATIC_OPT_FLAG=yes
else
CHECK_STATIC_OPT_FLAG=no
fi
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CHECK_STATIC_OPT_FLAG" >&5
$as_echo "$CHECK_STATIC_OPT_FLAG" >&6; }
if test "$CHECK_STATIC_OPT_FLAG" = no; then
CPPFLAGS="${OLD_CPPFLAGS}"
LDFLAGS="${OLD_LDFLAGS}"
fi
fi
fi
fi
# Check whether to enable auto cleanup of libraries
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to enable auto cleanup of libraries" >&5
$as_echo_n "checking whether to enable auto cleanup of libraries... " >&6; }

31
icu4c/source/configure.in
View File

@ -261,6 +261,37 @@ AC_ARG_ENABLE(static,
AC_MSG_RESULT($enabled)
AC_SUBST(ENABLE_STATIC)
# When building release static library, there might be some optimization flags we can use
if test "$ENABLE_STATIC" = "YES"; then
if test "$ENABLE_SHARED" != "YES"; then
if test "$ENABLE_RELEASE" = 1; then
AC_MSG_CHECKING([whether we can use static library optimization option])
CHECK_STATIC_OPT_FLAG=no
OLD_CPPFLAGS="${CPPFLAGS}"
OLD_LDFLAGS="${LDFLAGS}"
case "${host}" in
*-linux*|i*86-*-*bsd*|i*86-pc-gnu)
if test "$ac_cv_c_compiler_gnu" = yes; then
CPPFLAGS="${CPPFLAGS} -ffunction-sections -fdata-sections"
LDFLAGS="${LDFLAGS} -Wl,--gc-sections"
fi
;;
*)
;;
esac
AC_LINK_IFELSE(AC_LANG_PROGRAM, CHECK_STATIC_OPT_FLAG=yes, CHECK_STATIC_OPT_FLAG=no, )
AC_MSG_RESULT($CHECK_STATIC_OPT_FLAG)
if test "$CHECK_STATIC_OPT_FLAG" = no; then
CPPFLAGS="${OLD_CPPFLAGS}"
LDFLAGS="${OLD_LDFLAGS}"
fi
fi
fi
fi
# Check whether to enable auto cleanup of libraries
AC_MSG_CHECKING([whether to enable auto cleanup of libraries])
enabled=no