autotools: stop using AC_FUNC_MEMCMP and AC_FUNC_STRTOD

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

207
configure vendored
View File

@ -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

View File

@ -334,14 +334,6 @@ dnl Check for defines
AC_FUNC_ALLOCA
dnl Checks for library functions.
AC_FUNC_MEMCMP
if test x$ac_cv_func_memcmp_working = xyes; then
AC_DEFINE(HAVE_MEMCMP, 1, [ ])
fi
AC_FUNC_STRTOD
if test x$ac_cv_func_strtod = xyes; then
AC_DEFINE(HAVE_STRTOD, 1, [ ])
fi
AC_CHECK_FUNC(mprotect,
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include <sys/types.h>
@ -350,7 +342,7 @@ dnl Checks for library functions.
AC_DEFINE(HAVE_MPROTECT, 1, [ ])
],[]),
)
AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv bsearch qsort abs bcopy memset memcpy memmove wcslen wcslcpy wcslcat _wcsdup wcsdup wcsstr wcscmp wcsncmp wcscasecmp _wcsicmp wcsncasecmp _wcsnicmp strlen strlcpy strlcat _strrev _strupr _strlwr index rindex strchr strrchr strstr strtok_r itoa _ltoa _uitoa _ultoa strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval elf_aux_info poll _Exit)
AC_CHECK_FUNCS(malloc calloc realloc free getenv setenv putenv unsetenv bsearch qsort abs bcopy memset memcmp memcpy memmove wcslen wcslcpy wcslcat _wcsdup wcsdup wcsstr wcscmp wcsncmp wcscasecmp _wcsicmp wcsncasecmp _wcsnicmp strlen strlcpy strlcat _strrev _strupr _strlwr index rindex strchr strrchr strstr strtok_r itoa _ltoa _uitoa _ultoa strtod strtol strtoul _i64toa _ui64toa strtoll strtoull atoi atof strcmp strncmp _stricmp strcasecmp _strnicmp strncasecmp vsscanf vsnprintf fopen64 fseeko fseeko64 sigaction setjmp nanosleep sysconf sysctlbyname getauxval elf_aux_info poll _Exit)
AC_CHECK_LIB(m, pow, [LIBS="$LIBS -lm"; EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lm"])
AC_CHECK_FUNCS(acos acosf asin asinf atan atanf atan2 atan2f ceil ceilf copysign copysignf cos cosf exp expf fabs fabsf floor floorf trunc truncf fmod fmodf log logf log10 log10f lround lroundf pow powf round roundf scalbn scalbnf sin sinf sqrt sqrtf tan tanf)