| 1 | ?RCS: $Id$ |
| 2 | ?RCS: |
| 3 | ?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi |
| 4 | ?RCS: |
| 5 | ?RCS: You may redistribute only under the terms of the Artistic License, |
| 6 | ?RCS: as specified in the README file that comes with the distribution. |
| 7 | ?RCS: You may reuse parts of this distribution only within the terms of |
| 8 | ?RCS: that same Artistic License; a copy of which may be found at the root |
| 9 | ?RCS: of the source tree for dist 4.0. |
| 10 | ?RCS: |
| 11 | ?RCS: $Log: d_vprintf.U,v $ |
| 12 | ?RCS: Revision 3.0 1993/08/18 12:07:59 ram |
| 13 | ?RCS: Baseline for dist 3.0 netwide release. |
| 14 | ?RCS: |
| 15 | ?MAKE:d_vprintf d_charvspr: Guess cat +cc +ccflags Csym Setvar |
| 16 | ?MAKE: -pick add $@ %< |
| 17 | ?S:d_vprintf: |
| 18 | ?S: This variable conditionally defines the HAS_VPRINTF symbol, which |
| 19 | ?S: indicates to the C program that the vprintf() routine is available |
| 20 | ?S: to printf with a pointer to an argument list. |
| 21 | ?S:. |
| 22 | ?S:d_charvspr: |
| 23 | ?S: This variable conditionally defines CHARVSPRINTF if this system |
| 24 | ?S: has vsprintf returning type (char*). The trend seems to be to |
| 25 | ?S: declare it as "int vsprintf()". |
| 26 | ?S:. |
| 27 | ?C:HAS_VPRINTF (VPRINTF): |
| 28 | ?C: This symbol, if defined, indicates that the vprintf routine is available |
| 29 | ?C: to printf with a pointer to an argument list. If unavailable, you |
| 30 | ?C: may need to write your own, probably in terms of _doprnt(). |
| 31 | ?C:. |
| 32 | ?C:USE_CHAR_VSPRINTF (CHARVSPRINTF): |
| 33 | ?C: This symbol is defined if this system has vsprintf() returning type |
| 34 | ?C: (char*). The trend seems to be to declare it as "int vsprintf()". It |
| 35 | ?C: is up to the package author to declare vsprintf correctly based on the |
| 36 | ?C: symbol. |
| 37 | ?C:. |
| 38 | ?H:#$d_vprintf HAS_VPRINTF /**/ |
| 39 | ?H:#$d_charvspr USE_CHAR_VSPRINTF /**/ |
| 40 | ?H:. |
| 41 | ?F:!vprintf !vprintf.c |
| 42 | ?T:val2 |
| 43 | ?LINT:set d_vprintf d_charvspr |
| 44 | : see if vprintf exists |
| 45 | echo " " |
| 46 | if set vprintf val -f d_vprintf; eval $csym; $val; then |
| 47 | echo 'vprintf() found.' >&4 |
| 48 | val="$define" |
| 49 | $cat >vprintf.c <<'EOF' |
| 50 | #include <varargs.h> |
| 51 | |
| 52 | int main() { xxx("foo"); } |
| 53 | |
| 54 | xxx(va_alist) |
| 55 | va_dcl |
| 56 | { |
| 57 | va_list args; |
| 58 | char buf[10]; |
| 59 | |
| 60 | va_start(args); |
| 61 | exit((unsigned long)vsprintf(buf,"%s",args) > 10L); |
| 62 | } |
| 63 | EOF |
| 64 | if $cc $ccflags -o vprintf vprintf.c >/dev/null 2>&1 && ./vprintf; then |
| 65 | echo "Your vsprintf() returns (int)." >&4 |
| 66 | val2="$undef" |
| 67 | else |
| 68 | echo "Your vsprintf() returns (char*)." >&4 |
| 69 | val2="$define" |
| 70 | fi |
| 71 | else |
| 72 | echo 'vprintf() NOT found.' >&4 |
| 73 | val="$undef" |
| 74 | val2="$undef" |
| 75 | fi |
| 76 | set d_vprintf |
| 77 | eval $setvar |
| 78 | val=$val2 |
| 79 | set d_charvspr |
| 80 | eval $setvar |
| 81 | |