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This dnl is important concerning the exponent range. Note that this doesn't solve dnl the double-rounding problem. if test -n "$GCC"; then AC_CACHE_CHECK([for gcc float-conversion bug], mpfr_cv_gcc_floatconv_bug, [ saved_LIBS="$LIBS" LIBS="$LIBS $MPFR_LIBM" AC_RUN_IFELSE([AC_LANG_SOURCE([[ #include #ifdef MPFR_HAVE_FESETROUND #include #endif static double get_max (void); int main (void) { double x = 0.5; double y; int i; for (i = 1; i <= 11; i++) x *= x; if (x != 0) return 1; #ifdef MPFR_HAVE_FESETROUND /* Useful test for the G4 PowerPC */ fesetround(FE_TOWARDZERO); x = y = get_max (); x *= 2.0; if (x != y) return 1; #endif return 0; } static double get_max (void) { static volatile double d = DBL_MAX; return d; } ]])], [mpfr_cv_gcc_floatconv_bug="no"], [mpfr_cv_gcc_floatconv_bug="yes, use -ffloat-store"], [mpfr_cv_gcc_floatconv_bug="cannot test, use -ffloat-store"]) LIBS="$saved_LIBS" ]) if test "$mpfr_cv_gcc_floatconv_bug" != "no"; then CFLAGS="$CFLAGS -ffloat-store" fi fi dnl Check if subnormal (denormalized) numbers are supported AC_CACHE_CHECK([for subnormal numbers], mpfr_cv_have_denorms, [ AC_RUN_IFELSE([AC_LANG_SOURCE([[ #include int main (void) { double x = 2.22507385850720138309e-308; fprintf (stderr, "%e\n", x / 2.0); return 2.0 * (x / 2.0) != x; } ]])], [mpfr_cv_have_denorms="yes"], [mpfr_cv_have_denorms="no"], [mpfr_cv_have_denorms="cannot test, assume no"]) ]) if test "$mpfr_cv_have_denorms" = "yes"; then AC_DEFINE(HAVE_DENORMS,1,[Define if subnormal (denormalized) floats work.]) fi dnl Check if signed zeros are supported. Note: the test will fail dnl if the division by 0 generates a trap. AC_CACHE_CHECK([for signed zeros], mpfr_cv_have_signedz, [ AC_RUN_IFELSE([AC_LANG_SOURCE([[ int main (void) { return 1.0 / 0.0 == 1.0 / -0.0; } ]])], [mpfr_cv_have_signedz="yes"], [mpfr_cv_have_signedz="no"], [mpfr_cv_have_signedz="cannot test, assume no"]) ]) if test "$mpfr_cv_have_signedz" = "yes"; then AC_DEFINE(HAVE_SIGNEDZ,1,[Define if signed zeros are supported.]) fi dnl Check the FP division by 0 fails (e.g. on a non-IEEE-754 platform). dnl In such a case, MPFR_ERRDIVZERO is defined to disable the tests dnl involving a FP division by 0. dnl For the developers: to check whether all these tests are disabled, dnl configure MPFR with "-DMPFR_TEST_DIVBYZERO=1 -DMPFR_ERRDIVZERO=1". AC_CACHE_CHECK([if the FP division by 0 fails], mpfr_cv_errdivzero, [ AC_RUN_IFELSE([AC_LANG_SOURCE([[ int main (void) { volatile double d = 0.0, x; x = 0.0 / d; x = 1.0 / d; (void) x; return 0; } ]])], [mpfr_cv_errdivzero="no"], [mpfr_cv_errdivzero="yes"], [mpfr_cv_errdivzero="cannot test, assume no"]) ]) if test "$mpfr_cv_errdivzero" = "yes"; then AC_DEFINE(MPFR_ERRDIVZERO,1,[Define if the FP division by 0 fails.]) AC_MSG_WARN([The floating-point division by 0 fails instead of]) AC_MSG_WARN([returning a special value: NaN or infinity. Tests]) AC_MSG_WARN([involving a FP division by 0 will be disabled.]) fi dnl Check whether NAN != NAN (as required by the IEEE-754 standard, dnl but not by the ISO C standard). For instance, this is false with dnl MIPSpro 7.3.1.3m under IRIX64. By default, assume this is true. AC_CACHE_CHECK([if NAN == NAN], mpfr_cv_nanisnan, [ AC_RUN_IFELSE([AC_LANG_SOURCE([[ #include #include #ifndef NAN # define NAN (0.0/0.0) #endif int main (void) { double d; d = NAN; return d != d; } ]])], [mpfr_cv_nanisnan="yes"], [mpfr_cv_nanisnan="no"], [mpfr_cv_nanisnan="cannot test, assume no"]) ]) if test "$mpfr_cv_nanisnan" = "yes"; then AC_DEFINE(MPFR_NANISNAN,1,[Define if NAN == NAN.]) AC_MSG_WARN([The test NAN != NAN is false. The probable reason is that]) AC_MSG_WARN([your compiler optimizes floating-point expressions in an]) AC_MSG_WARN([unsafe way because some option, such as -ffast-math or]) AC_MSG_WARN([-fast (depending on the compiler), has been used. You]) AC_MSG_WARN([should NOT use such an option, otherwise MPFR functions]) AC_MSG_WARN([such as mpfr_get_d and mpfr_set_d may return incorrect]) AC_MSG_WARN([results on special FP numbers (e.g. NaN or signed zeros).]) AC_MSG_WARN([If you did not use such an option, please send us a bug]) AC_MSG_WARN([report so that we can try to find a workaround for your]) AC_MSG_WARN([platform and/or document the behavior.]) fi dnl Check if the chars '0' to '9' are consecutive values AC_MSG_CHECKING([if charset has consecutive values]) AC_RUN_IFELSE([AC_LANG_PROGRAM([[ char *number = "0123456789"; char *lower = "abcdefghijklmnopqrstuvwxyz"; char *upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; ]],[[ int i; unsigned char *p; for (p = (unsigned char*) number, i = 0; i < 9; i++) if ( (*p)+1 != *(p+1) ) return 1; for (p = (unsigned char*) lower, i = 0; i < 25; i++) if ( (*p)+1 != *(p+1) ) return 1; for (p = (unsigned char*) upper, i = 0; i < 25; i++) if ( (*p)+1 != *(p+1) ) return 1; ]])], [AC_MSG_RESULT(yes)],[ AC_MSG_RESULT(no) AC_DEFINE(MPFR_NO_CONSECUTIVE_CHARSET,1,[Charset is not consecutive]) ], [AC_MSG_RESULT(cannot test)]) dnl Must be checked with the LIBM dnl but we don't want to add the LIBM to MPFR dependency. dnl Can't use AC_CHECK_FUNCS since the function may be in LIBM but dnl not exported in math.h saved_LIBS="$LIBS" LIBS="$LIBS $MPFR_LIBM" dnl AC_CHECK_FUNCS([round trunc floor ceil nearbyint]) AC_MSG_CHECKING(for math/round) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include static int f (double (*func)(double)) { return 0; } ]], [[ return f(round); ]])], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_ROUND, 1,[Have ISO C99 round function]) ],[AC_MSG_RESULT(no)]) AC_MSG_CHECKING(for math/trunc) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include static int f (double (*func)(double)) { return 0; } ]], [[ return f(trunc); ]])], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_TRUNC, 1,[Have ISO C99 trunc function]) ],[AC_MSG_RESULT(no)]) AC_MSG_CHECKING(for math/floor) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include static int f (double (*func)(double)) { return 0; } ]], [[ return f(floor); ]])], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_FLOOR, 1,[Have ISO C99 floor function]) ],[AC_MSG_RESULT(no)]) AC_MSG_CHECKING(for math/ceil) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include static int f (double (*func)(double)) { return 0; } ]], [[ return f(ceil); ]])], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_CEIL, 1,[Have ISO C99 ceil function]) ],[AC_MSG_RESULT(no)]) AC_MSG_CHECKING(for math/nearbyint) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include static int f (double (*func)(double)) { return 0; } ]], [[ return f(nearbyint); ]])], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_NEARBYINT, 1,[Have ISO C99 nearbyint function]) ],[AC_MSG_RESULT(no)]) LIBS="$saved_LIBS" dnl Now try to check the long double format MPFR_C_LONG_DOUBLE_FORMAT if test "$enable_logging" = yes; then if test "$enable_thread_safe" = yes; then AC_MSG_ERROR([Enable either `Logging' or `thread-safe', not both]) else enable_thread_safe=no fi fi dnl Check if thread-local variables are supported. dnl At least two problems can occur in practice: dnl 1. The compilation fails, e.g. because the compiler doesn't know dnl about the __thread keyword. dnl 2. The compilation succeeds, but the system doesn't support TLS or dnl there is some ld configuration problem. One of the effects can dnl be that thread-local variables always evaluate to 0. So, it is dnl important to run the test below. if test "$enable_thread_safe" != no; then AC_MSG_CHECKING(for TLS support) saved_CPPFLAGS="$CPPFLAGS" CPPFLAGS="$CPPFLAGS -I$srcdir/src" AC_RUN_IFELSE([AC_LANG_SOURCE([[ #define MPFR_USE_THREAD_SAFE 1 #include "mpfr-thread.h" MPFR_THREAD_ATTR int x = 17; int main (void) { return x != 17; } ]])], [AC_MSG_RESULT(yes) AC_DEFINE([MPFR_USE_THREAD_SAFE],1,[Build MPFR as thread safe]) ], [AC_MSG_RESULT(no) if test "$enable_thread_safe" = yes; then AC_MSG_ERROR([please configure with --disable-thread-safe]) fi ], [if test "$enable_thread_safe" = yes; then AC_MSG_RESULT([cannot test, assume yes]) AC_DEFINE([MPFR_USE_THREAD_SAFE],1,[Build MPFR as thread safe]) else AC_MSG_RESULT([cannot test, assume no]) fi ]) CPPFLAGS="$saved_CPPFLAGS" fi ]) m4trace:acinclude.m4:448: -1- AC_DEFUN([MPFR_CHECK_GMP], [ AC_REQUIRE([MPFR_CONFIGS])dnl AC_CACHE_CHECK([for GMP library vs header correctness], mpfr_cv_check_gmp, [ AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include #include #include ]], [[ fprintf (stderr, "GMP_NAIL_BITS = %d\n", (int) GMP_NAIL_BITS); fprintf (stderr, "GMP_NUMB_BITS = %d\n", (int) GMP_NUMB_BITS); fprintf (stderr, "mp_bits_per_limb = %d\n", (int) mp_bits_per_limb); fprintf (stderr, "sizeof(mp_limb_t) = %d\n", (int) sizeof(mp_limb_t)); if (GMP_NAIL_BITS != 0) { fprintf (stderr, "GMP_NAIL_BITS != 0\n"); return 1; } if (GMP_NUMB_BITS != mp_bits_per_limb) { fprintf (stderr, "GMP_NUMB_BITS != mp_bits_per_limb\n"); return 2; } if (GMP_NUMB_BITS != sizeof(mp_limb_t) * CHAR_BIT) { fprintf (stderr, "GMP_NUMB_BITS != sizeof(mp_limb_t) * CHAR_BIT\n"); return 3; } return 0; ]])], [mpfr_cv_check_gmp="yes"], [mpfr_cv_check_gmp="no (exit status is $?)"], [mpfr_cv_check_gmp="cannot test, assume yes"]) ]) case $mpfr_cv_check_gmp in no*) AC_MSG_ERROR([bad GMP library or header - ABI problem? See 'config.log' for details.]) esac ]) m4trace:acinclude.m4:513: -1- AC_DEFUN([MPFR_CHECK_DBL2INT_BUG], [ AC_REQUIRE([MPFR_CONFIGS])dnl AC_CACHE_CHECK([for double-to-integer conversion bug], mpfr_cv_dbl_int_bug, [ AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include ]], [[ double d; mp_limb_t u; int i; d = 1.0; for (i = 0; i < GMP_NUMB_BITS - 1; i++) d = d + d; u = (mp_limb_t) d; for (; i > 0; i--) { if (u & 1) break; u = u >> 1; } return (i == 0 && u == 1UL) ? 0 : 254 - i; ]])], [mpfr_cv_dbl_int_bug="no"], [mpfr_cv_dbl_int_bug="yes or failed to exec (exit status is $?)"], [mpfr_cv_dbl_int_bug="cannot test, assume not present"]) ]) case $mpfr_cv_dbl_int_bug in yes*) AC_MSG_ERROR([double-to-integer conversion is incorrect. You need to use another compiler (or lower the optimization level).]) esac ]) m4trace:acinclude.m4:548: -1- AC_DEFUN([MPFR_PARSE_DIRECTORY], [ dnl Check if argument is a directory if test -d $1 ; then dnl Get the absolute path of the directory dnl in case of relative directory. dnl If realpath is not a valid command, dnl an error is produced and we keep the given path. local_tmp=`realpath $1 2>/dev/null` if test "$local_tmp" != "" ; then if test -d "$local_tmp" ; then $2="$local_tmp" else $2=$1 fi else $2=$1 fi dnl Check for space in the directory if test `echo $1|cut -d' ' -f1` != $1 ; then AC_MSG_ERROR($1 directory shall not contain any space.) fi else AC_MSG_ERROR($1 shall be a valid directory) fi ]) m4trace:acinclude.m4:605: -1- AC_DEFUN([MPFR_C_LONG_DOUBLE_FORMAT], [AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([AC_PROG_AWK]) AC_REQUIRE([AC_OBJEXT]) AC_CHECK_TYPES([long double]) AC_CACHE_CHECK([format of `long double' floating point], mpfr_cv_c_long_double_format, [mpfr_cv_c_long_double_format=unknown if test "$ac_cv_type_long_double" != yes; then mpfr_cv_c_long_double_format="not available" else cat >conftest.c <<\EOF [ /* "before" is 16 bytes to ensure there's no padding between it and "x". We're not expecting any "long double" bigger than 16 bytes or with alignment requirements stricter than 16 bytes. */ struct { char before[16]; long double x; char after[8]; } foo = { { '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\0', '\001', '\043', '\105', '\147', '\211', '\253', '\315', '\357' }, -123456789.0, { '\376', '\334', '\272', '\230', '\166', '\124', '\062', '\020' } }; ] EOF mpfr_compile="$CC $CFLAGS $CPPFLAGS -c conftest.c >&AS_MESSAGE_LOG_FD 2>&1" if AC_TRY_EVAL(mpfr_compile); then cat >conftest.awk <<\EOF [ BEGIN { found = 0 } # got[] holds a sliding window of bytes read the input. got[0] is the most # recent byte read, and got[31] the oldest byte read, so when looking to # match some data the indices are "reversed". # { for (f = 2; f <= NF; f++) { # new byte, shift others up for (i = 31; i >= 0; i--) got[i+1] = got[i]; got[0] = $f; # end sequence if (got[7] != "376") continue if (got[6] != "334") continue if (got[5] != "272") continue if (got[4] != "230") continue if (got[3] != "166") continue if (got[2] != "124") continue if (got[1] != "062") continue if (got[0] != "020") continue # start sequence, with 8-byte body if (got[23] == "001" && \ got[22] == "043" && \ got[21] == "105" && \ got[20] == "147" && \ got[19] == "211" && \ got[18] == "253" && \ got[17] == "315" && \ got[16] == "357") { saw = " (" got[15] \ " " got[14] \ " " got[13] \ " " got[12] \ " " got[11] \ " " got[10] \ " " got[9] \ " " got[8] ")" if (got[15] == "301" && \ got[14] == "235" && \ got[13] == "157" && \ got[12] == "064" && \ got[11] == "124" && \ got[10] == "000" && \ got[9] == "000" && \ got[8] == "000") { print "IEEE double, big endian" found = 1 exit } if (got[15] == "000" && \ got[14] == "000" && \ got[13] == "000" && \ got[12] == "124" && \ got[11] == "064" && \ got[10] == "157" && \ got[9] == "235" && \ got[8] == "301") { print "IEEE double, little endian" found = 1 exit } } # start sequence, with 12-byte body if (got[27] == "001" && \ got[26] == "043" && \ got[25] == "105" && \ got[24] == "147" && \ got[23] == "211" && \ got[22] == "253" && \ got[21] == "315" && \ got[20] == "357") { saw = " (" got[19] \ " " got[18] \ " " got[17] \ " " got[16] \ " " got[15] \ " " got[14] \ " " got[13] \ " " got[12] \ " " got[11] \ " " got[10] \ " " got[9] \ " " got[8] ")" if (got[19] == "000" && \ got[18] == "000" && \ got[17] == "000" && \ got[16] == "000" && \ got[15] == "240" && \ got[14] == "242" && \ got[13] == "171" && \ got[12] == "353" && \ got[11] == "031" && \ got[10] == "300") { print "IEEE extended, little endian" found = 1 exit } if (got[19] == "300" && \ got[18] == "031" && \ got[17] == "000" && \ got[16] == "000" && \ got[15] == "353" && \ got[14] == "171" && \ got[13] == "242" && \ got[12] == "240" && \ got[11] == "000" && \ got[10] == "000" && \ got[09] == "000" && \ got[08] == "000") { # format found on m68k print "IEEE extended, big endian" found = 1 exit } } # start sequence, with 16-byte body if (got[31] == "001" && \ got[30] == "043" && \ got[29] == "105" && \ got[28] == "147" && \ got[27] == "211" && \ got[26] == "253" && \ got[25] == "315" && \ got[24] == "357") { saw = " (" got[23] \ " " got[22] \ " " got[21] \ " " got[20] \ " " got[19] \ " " got[18] \ " " got[17] \ " " got[16] \ " " got[15] \ " " got[14] \ " " got[13] \ " " got[12] \ " " got[11] \ " " got[10] \ " " got[9] \ " " got[8] ")" if (got[23] == "000" && \ got[22] == "000" && \ got[21] == "000" && \ got[20] == "000" && \ got[19] == "240" && \ got[18] == "242" && \ got[17] == "171" && \ got[16] == "353" && \ got[15] == "031" && \ got[14] == "300") { print "IEEE extended, little endian" found = 1 exit } if (got[23] == "300" && \ got[22] == "031" && \ got[21] == "326" && \ got[20] == "363" && \ got[19] == "105" && \ got[18] == "100" && \ got[17] == "000" && \ got[16] == "000" && \ got[15] == "000" && \ got[14] == "000" && \ got[13] == "000" && \ got[12] == "000" && \ got[11] == "000" && \ got[10] == "000" && \ got[9] == "000" && \ got[8] == "000") { # format used on HP 9000/785 under HP-UX print "IEEE quad, big endian" found = 1 exit } if (got[23] == "000" && \ got[22] == "000" && \ got[21] == "000" && \ got[20] == "000" && \ got[19] == "000" && \ got[18] == "000" && \ got[17] == "000" && \ got[16] == "000" && \ got[15] == "000" && \ got[14] == "000" && \ got[13] == "100" && \ got[12] == "105" && \ got[11] == "363" && \ got[10] == "326" && \ got[9] == "031" && \ got[8] == "300") { print "IEEE quad, little endian" found = 1 exit } if (got[23] == "301" && \ got[22] == "235" && \ got[21] == "157" && \ got[20] == "064" && \ got[19] == "124" && \ got[18] == "000" && \ got[17] == "000" && \ got[16] == "000" && \ got[15] == "000" && \ got[14] == "000" && \ got[13] == "000" && \ got[12] == "000" && \ got[11] == "000" && \ got[10] == "000" && \ got[9] == "000" && \ got[8] == "000") { # format used on 32-bit PowerPC (Mac OS X and Debian GNU/Linux) print "possibly double-double, big endian" found = 1 exit } } } } END { if (! found) print "unknown", saw } ] EOF mpfr_cv_c_long_double_format=`od -b conftest.$OBJEXT | $AWK -f conftest.awk` case $mpfr_cv_c_long_double_format in unknown*) echo "cannot match anything, conftest.$OBJEXT contains" >&AS_MESSAGE_LOG_FD od -b conftest.$OBJEXT >&AS_MESSAGE_LOG_FD ;; esac else AC_MSG_WARN([oops, cannot compile test program]) fi fi rm -f conftest* ]) AH_VERBATIM([HAVE_LDOUBLE], [/* Define one of the following to 1 for the format of a `long double'. If your format is not among these choices, or you don't know what it is, then leave all undefined. IEEE_EXT is the 10-byte IEEE extended precision format. IEEE_QUAD is the 16-byte IEEE quadruple precision format. LITTLE or BIG is the endianness. */ #undef HAVE_LDOUBLE_IEEE_EXT_LITTLE #undef HAVE_LDOUBLE_IEEE_QUAD_BIG]) case $mpfr_cv_c_long_double_format in "IEEE extended, little endian") AC_DEFINE(HAVE_LDOUBLE_IEEE_EXT_LITTLE, 1) ;; "IEEE quad, big endian") AC_DEFINE(HAVE_LDOUBLE_IEEE_QUAD_BIG, 1) ;; "IEEE quad, little endian") AC_DEFINE(HAVE_LDOUBLE_IEEE_QUAD_LITTLE, 1) ;; "possibly double-double, big endian") AC_MSG_WARN([This format is known on GCC/PowerPC platforms,]) AC_MSG_WARN([but due to GCC PR26374, we can't test further.]) AC_MSG_WARN([You can safely ignore this warning, though.]) # Since we are not sure, we do not want to define a macro. ;; unknown* | "not available") ;; *) AC_MSG_WARN([oops, unrecognised float format: $mpfr_cv_c_long_double_format]) ;; esac ]) m4trace:acinclude.m4:943: -1- AC_DEFUN([MPFR_CHECK_LIBM], [AC_REQUIRE([AC_CANONICAL_HOST]) AC_SUBST(MPFR_LIBM,'') case $host in *-*-beos* | *-*-cygwin* | *-*-pw32*) # According to libtool AC CHECK LIBM, these systems don't have libm ;; *-*-solaris*) # On Solaris the math functions new in C99 are in -lm9x. # FIXME: Do we need -lm9x as well as -lm, or just instead of? AC_CHECK_LIB(m9x, main, MPFR_LIBM="-lm9x") AC_CHECK_LIB(m, main, MPFR_LIBM="$MPFR_LIBM -lm") ;; *-ncr-sysv4.3*) # FIXME: What does -lmw mean? Libtool AC CHECK LIBM does it this way. AC_CHECK_LIB(mw, _mwvalidcheckl, MPFR_LIBM="-lmw") AC_CHECK_LIB(m, main, MPFR_LIBM="$MPFR_LIBM -lm") ;; *) AC_CHECK_LIB(m, main, MPFR_LIBM="-lm") ;; esac ]) m4trace:acinclude.m4:971: -1- AC_DEFUN([MPFR_LD_SEARCH_PATHS_FIRST], [case "$LD $LDFLAGS" in *-Wl,-search_paths_first*) ;; *) AC_MSG_CHECKING([if the compiler understands -Wl,-search_paths_first]) saved_LDFLAGS="$LDFLAGS" LDFLAGS="-Wl,-search_paths_first $LDFLAGS" AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no)] LDFLAGS="$saved_LDFLAGS") ;; esac ]) m4trace:acinclude.m4:996: -1- AC_DEFUN([GMP_C_ATTRIBUTE_MODE], [AC_CACHE_CHECK([whether gcc __attribute__ ((mode (XX))) works], gmp_cv_c_attribute_mode, [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[typedef int SItype __attribute__ ((mode (SI)));]], [[]])], gmp_cv_c_attribute_mode=yes, gmp_cv_c_attribute_mode=no) ]) if test $gmp_cv_c_attribute_mode = yes; then AC_DEFINE(HAVE_ATTRIBUTE_MODE, 1, [Define to 1 if the compiler accepts gcc style __attribute__ ((mode (XX)))]) fi ]) m4trace:acinclude.m4:1016: -1- AC_DEFUN([MPFR_FUNC_GMP_PRINTF_SPEC], [ AC_MSG_CHECKING(if gmp_printf supports "%$1") AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include #include $3 #include ]], [[ char s[256]; $2 a = 17; if (gmp_sprintf (s, "(%0.0$1)(%d)", a, 42) == -1) return 1; return (strcmp (s, "(17)(42)") != 0); ]])], [AC_MSG_RESULT(yes) $4], [AC_MSG_RESULT(no) $5], [AC_MSG_RESULT(cross-compiling, assuming yes) $4]) ]) m4trace:acinclude.m4:1044: -1- AC_DEFUN([MPFR_CHECK_PRINTF_SPEC], [ AC_REQUIRE([MPFR_CONFIGS])dnl if test "$ac_cv_type_intmax_t" = yes; then MPFR_FUNC_GMP_PRINTF_SPEC([jd], [intmax_t], [ #ifdef HAVE_INTTYPES_H # include #endif #ifdef HAVE_STDINT_H # include #endif ],, [AC_DEFINE([NPRINTF_J], 1, [gmp_printf cannot read intmax_t])]) fi MPFR_FUNC_GMP_PRINTF_SPEC([hhd], [char], [ #include ],, [AC_DEFINE([NPRINTF_HH], 1, [gmp_printf cannot use `hh' length modifier])]) MPFR_FUNC_GMP_PRINTF_SPEC([lld], [long long int], [ #include ],, [AC_DEFINE([NPRINTF_LL], 1, [gmp_printf cannot read long long int])]) MPFR_FUNC_GMP_PRINTF_SPEC([Lf], [long double], [ #include ],, [AC_DEFINE([NPRINTF_L], 1, [gmp_printf cannot read long double])]) MPFR_FUNC_GMP_PRINTF_SPEC([td], [ptrdiff_t], [ #if defined (__cplusplus) #include #else #include #endif #include ],, [AC_DEFINE([NPRINTF_T], 1, [gmp_printf cannot read ptrdiff_t])]) ]) m4trace:configure.ac:26: -1- m4_pattern_forbid([^_?A[CHUM]_]) m4trace:configure.ac:26: -1- m4_pattern_forbid([_AC_]) m4trace:configure.ac:26: -1- m4_pattern_forbid([^LIBOBJS$], [do not use LIBOBJS directly, use AC_LIBOBJ (see section `AC_LIBOBJ vs LIBOBJS']) m4trace:configure.ac:26: -1- m4_pattern_allow([^AS_FLAGS$]) m4trace:configure.ac:26: -1- m4_pattern_forbid([^_?m4_]) m4trace:configure.ac:26: -1- m4_pattern_forbid([^dnl$]) m4trace:configure.ac:26: -1- m4_pattern_forbid([^_?AS_]) m4trace:configure.ac:26: -1- m4_pattern_allow([^SHELL$]) m4trace:configure.ac:26: -1- m4_pattern_allow([^PATH_SEPARATOR$]) m4trace:configure.ac:26: -1- 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