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autotools: stop using AC_FUNC_MEMCMP and AC_FUNC_STRTOD

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Closes:  https://github.com/libsdl-org/SDL/issues/6266 .
This commit is contained in:
Ozkan Sezer
2022-09-20 20:03:20 +03:00
parent dc2a682a82
commit db225dec41
2 changed files with 14 additions and 203 deletions
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207
configure vendored
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@@ -657,6 +657,7 @@ ac_includes_default="\
ac_header_c_list=
ac_subst_vars='LTLIBOBJS
LIBOBJS
WAYLAND_SCANNER_CODE_MODE
WAYLAND_SCANNER
EXTRA_LDFLAGS
@@ -718,8 +719,6 @@ JACK_LIBS
JACK_CFLAGS
ALSA_LIBS
ALSA_CFLAGS
POW_LIB
LIBOBJS
ALLOCA
CPP
LIBTOOLLINKERTAG
@@ -19118,198 +19117,6 @@ printf "%s\n" "#define STACK_DIRECTION $ac_cv_c_stack_direction" >>confdefs.h
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for working memcmp" >&5
printf %s "checking for working memcmp... " >&6; }
if test ${ac_cv_func_memcmp_working+y}
then :
printf %s "(cached) " >&6
else $as_nop
if test "$cross_compiling" = yes
then :
ac_cv_func_memcmp_working=no
else $as_nop
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
$ac_includes_default
int
main (void)
{
/* Some versions of memcmp are not 8-bit clean. */
char c0 = '\100', c1 = '\200', c2 = '\201';
if (memcmp(&c0, &c2, 1) >= 0 || memcmp(&c1, &c2, 1) >= 0)
return 1;
/* The Next x86 OpenStep bug shows up only when comparing 16 bytes
or more and with at least one buffer not starting on a 4-byte boundary.
William Lewis provided this test program. */
{
char foo[21];
char bar[21];
int i;
for (i = 0; i < 4; i++)
{
char *a = foo + i;
char *b = bar + i;
strcpy (a, "--------01111111");
strcpy (b, "--------10000000");
if (memcmp (a, b, 16) >= 0)
return 1;
}
return 0;
}
;
return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"
then :
ac_cv_func_memcmp_working=yes
else $as_nop
ac_cv_func_memcmp_working=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_memcmp_working" >&5
printf "%s\n" "$ac_cv_func_memcmp_working" >&6; }
test $ac_cv_func_memcmp_working = no && case " $LIBOBJS " in
*" memcmp.$ac_objext "* ) ;;
*) LIBOBJS="$LIBOBJS memcmp.$ac_objext"
;;
esac
if test x$ac_cv_func_memcmp_working = xyes; then
printf "%s\n" "#define HAVE_MEMCMP 1" >>confdefs.h
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for working strtod" >&5
printf %s "checking for working strtod... " >&6; }
if test ${ac_cv_func_strtod+y}
then :
printf %s "(cached) " >&6
else $as_nop
if test "$cross_compiling" = yes
then :
ac_cv_func_strtod=no
else $as_nop
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
$ac_includes_default
#ifndef strtod
double strtod ();
#endif
int
main (void)
{
{
/* Some versions of Linux strtod mis-parse strings with leading '+'. */
char *string = " +69";
char *term;
double value;
value = strtod (string, &term);
if (value != 69 || term != (string + 4))
return 1;
}
{
/* Under Solaris 2.4, strtod returns the wrong value for the
terminating character under some conditions. */
char *string = "NaN";
char *term;
strtod (string, &term);
if (term != string && *(term - 1) == 0)
return 1;
}
return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"
then :
ac_cv_func_strtod=yes
else $as_nop
ac_cv_func_strtod=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
conftest.$ac_objext conftest.beam conftest.$ac_ext
fi
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_strtod" >&5
printf "%s\n" "$ac_cv_func_strtod" >&6; }
if test $ac_cv_func_strtod = no; then
case " $LIBOBJS " in
*" strtod.$ac_objext "* ) ;;
*) LIBOBJS="$LIBOBJS strtod.$ac_objext"
;;
esac
ac_fn_c_check_func "$LINENO" "pow" "ac_cv_func_pow"
if test "x$ac_cv_func_pow" = xyes
then :
fi
if test $ac_cv_func_pow = no; then
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for pow in -lm" >&5
printf %s "checking for pow in -lm... " >&6; }
if test ${ac_cv_lib_m_pow+y}
then :
printf %s "(cached) " >&6
else $as_nop
ac_check_lib_save_LIBS=$LIBS
LIBS="-lm $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
char pow ();
int
main (void)
{
return pow ();
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"
then :
ac_cv_lib_m_pow=yes
else $as_nop
ac_cv_lib_m_pow=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_pow" >&5
printf "%s\n" "$ac_cv_lib_m_pow" >&6; }
if test "x$ac_cv_lib_m_pow" = xyes
then :
POW_LIB=-lm
else $as_nop
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cannot find library containing definition of pow" >&5
printf "%s\n" "$as_me: WARNING: cannot find library containing definition of pow" >&2;}
fi
fi
fi
if test x$ac_cv_func_strtod = xyes; then
printf "%s\n" "#define HAVE_STRTOD 1" >>confdefs.h
fi
ac_fn_c_check_func "$LINENO" "mprotect" "ac_cv_func_mprotect"
if test "x$ac_cv_func_mprotect" = xyes
then :
@@ -19415,6 +19222,12 @@ if test "x$ac_cv_func_memset" = xyes
then :
printf "%s\n" "#define HAVE_MEMSET 1" >>confdefs.h
fi
ac_fn_c_check_func "$LINENO" "memcmp" "ac_cv_func_memcmp"
if test "x$ac_cv_func_memcmp" = xyes
then :
printf "%s\n" "#define HAVE_MEMCMP 1" >>confdefs.h
fi
ac_fn_c_check_func "$LINENO" "memcpy" "ac_cv_func_memcpy"
if test "x$ac_cv_func_memcpy" = xyes
@@ -19595,6 +19408,12 @@ if test "x$ac_cv_func__ultoa" = xyes
then :
printf "%s\n" "#define HAVE__ULTOA 1" >>confdefs.h
fi
ac_fn_c_check_func "$LINENO" "strtod" "ac_cv_func_strtod"
if test "x$ac_cv_func_strtod" = xyes
then :
printf "%s\n" "#define HAVE_STRTOD 1" >>confdefs.h
fi
ac_fn_c_check_func "$LINENO" "strtol" "ac_cv_func_strtol"
if test "x$ac_cv_func_strtol" = xyes