mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
99 lines
3.1 KiB
Plaintext
99 lines
3.1 KiB
Plaintext
dnl GAS_CHECK_DECL_NEEDED(name, typedefname, typedef, headers)
|
|
AC_DEFUN(GAS_CHECK_DECL_NEEDED,[
|
|
AC_MSG_CHECKING(whether declaration is required for $1)
|
|
AC_CACHE_VAL(gas_cv_decl_needed_$1,
|
|
AC_TRY_LINK([$4],
|
|
[
|
|
typedef $3;
|
|
$2 x;
|
|
x = ($2) $1;
|
|
], gas_cv_decl_needed_$1=no, gas_cv_decl_needed_$1=yes))dnl
|
|
AC_MSG_RESULT($gas_cv_decl_needed_$1)
|
|
test $gas_cv_decl_needed_$1 = no || {
|
|
ifelse(index($1,[$]),-1,
|
|
[AC_DEFINE([NEED_DECLARATION_]translit($1, [a-z], [A-Z]))],
|
|
[gas_decl_name_upcase=`echo $1 | tr '[a-z]' '[A-Z]'`
|
|
AC_DEFINE_UNQUOTED(NEED_DECLARATION_$gas_decl_name_upcase)])
|
|
}
|
|
])dnl
|
|
dnl
|
|
dnl Some non-ANSI preprocessors botch requoting inside strings. That's bad
|
|
dnl enough, but on some of those systems, the assert macro relies on requoting
|
|
dnl working properly!
|
|
dnl GAS_WORKING_ASSERT
|
|
AC_DEFUN(GAS_WORKING_ASSERT,
|
|
[AC_MSG_CHECKING([for working assert macro])
|
|
AC_CACHE_VAL(gas_cv_assert_ok,
|
|
AC_TRY_LINK([#include <assert.h>
|
|
#include <stdio.h>], [
|
|
/* check for requoting problems */
|
|
static int a, b, c, d;
|
|
static char *s;
|
|
assert (!strcmp(s, "foo bar baz quux"));
|
|
/* check for newline handling */
|
|
assert (a == b
|
|
|| c == d);
|
|
], gas_cv_assert_ok=yes, gas_cv_assert_ok=no))dnl
|
|
AC_MSG_RESULT($gas_cv_assert_ok)
|
|
test $gas_cv_assert_ok = yes || AC_DEFINE(BROKEN_ASSERT)
|
|
])dnl
|
|
dnl
|
|
dnl Since many Bourne shell implementations lack subroutines, use this
|
|
dnl hack to simplify the code in configure.in.
|
|
dnl GAS_UNIQ(listvar)
|
|
AC_DEFUN(GAS_UNIQ,
|
|
[_gas_uniq_list="[$]$1"
|
|
_gas_uniq_newlist=""
|
|
dnl Protect against empty input list.
|
|
for _gas_uniq_i in _gas_uniq_dummy [$]_gas_uniq_list ; do
|
|
case [$]_gas_uniq_i in
|
|
_gas_uniq_dummy) ;;
|
|
*) case " [$]_gas_uniq_newlist " in
|
|
*" [$]_gas_uniq_i "*) ;;
|
|
*) _gas_uniq_newlist="[$]_gas_uniq_newlist [$]_gas_uniq_i" ;;
|
|
esac ;;
|
|
esac
|
|
done
|
|
$1=[$]_gas_uniq_newlist
|
|
])dnl
|
|
|
|
# Check to see if we're running under Cygwin32, without using
|
|
# AC_CANONICAL_*. If so, set output variable CYGWIN32 to "yes".
|
|
# Otherwise set it to "no".
|
|
|
|
AC_DEFUN(CY_CYGWIN32,
|
|
[AC_CACHE_CHECK(for Cygwin32 environment, am_cv_cygwin32,
|
|
[AC_TRY_COMPILE(,[int main () { return __CYGWIN32__; }],
|
|
am_cv_cygwin32=yes, am_cv_cygwin32=no)
|
|
rm -f conftest*])
|
|
CYGWIN32=
|
|
test "$am_cv_cygwin32" = yes && CYGWIN32=yes])
|
|
# Check to see if we're running under Win32, without using
|
|
# AC_CANONICAL_*. If so, set output variable EXEEXT to ".exe".
|
|
# Otherwise set it to "".
|
|
|
|
dnl This knows we add .exe if we're building in the Cygwin32
|
|
dnl environment. But if we're not, then it compiles a test program
|
|
dnl to see if there is a suffix for executables.
|
|
AC_DEFUN(CY_EXEEXT,
|
|
dnl AC_REQUIRE([AC_PROG_CC])AC_REQUIRE([CY_CYGWIN32])
|
|
AC_MSG_CHECKING([for executable suffix])
|
|
[AC_CACHE_VAL(am_cv_exeext,
|
|
[if test "$CYGWIN32" = yes; then
|
|
am_cv_exeext=.exe
|
|
else
|
|
cat > am_c_test.c << 'EOF'
|
|
int main() {
|
|
/* Nothing needed here */
|
|
}
|
|
EOF
|
|
${CC-cc} -o am_c_test $CFLAGS $CPPFLAGS $LDFLAGS am_c_test.c $LIBS 1>&5
|
|
am_cv_exeext=`ls am_c_test.* | grep -v am_c_test.c | sed -e s/am_c_test//`
|
|
rm -f am_c_test*])
|
|
test x"${am_cv_exeext}" = x && am_cv_exeext=no
|
|
fi
|
|
EXEEXT=""
|
|
test x"${am_cv_exeext}" != xno && EXEEXT=${am_cv_exeext}
|
|
AC_MSG_RESULT(${am_cv_exeext})
|
|
AC_SUBST(EXEEXT)])
|