https://perl5.git.perl.org / metaconfig.git / blame
| Commit | Line | Data |
|---|---|---|
| d8875586 MBT |
1 | ?RCS: $Id: d_open3.U 1 2006-08-24 12:32:52Z rmanfredi $ |
| 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 Licence, | |
| 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 Licence; 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_open3.U,v $ | |
| 12 | ?RCS: Revision 3.0.1.2 1997/02/28 15:37:12 ram | |
| 13 | ?RCS: patch61: added ?F: metalint hint | |
| 14 | ?RCS: | |
| 15 | ?RCS: Revision 3.0.1.1 1995/07/25 13:58:26 ram | |
| 16 | ?RCS: patch56: added knowledge of the O_NONBLOCK symbol | |
| 17 | ?RCS: | |
| 18 | ?RCS: Revision 3.0 1993/08/18 12:06:44 ram | |
| 19 | ?RCS: Baseline for dist 3.0 netwide release. | |
| 20 | ?RCS: | |
| 21 | ?MAKE:d_open3: test +cc cat +cppflags h_fcntl h_sysfile rm Setvar Findhdr Warn | |
| 22 | ?MAKE: -pick add $@ %< | |
| 23 | ?X: It would be easy to separate the h_O_stuff from this. | |
| 24 | ?X: Is there a reason to do so? -- HMS | |
| 25 | ?S:d_open3: | |
| 26 | ?S: This variable conditionally defines the HAS_OPEN3 manifest constant, | |
| 27 | ?S: which indicates to the C program that the 3 argument version of | |
| 28 | ?S: the open(2) function is available. | |
| 29 | ?S:. | |
| 30 | ?C:HAS_OPEN3 (OPEN3): | |
| 31 | ?C: This manifest constant lets the C program know that the three | |
| 32 | ?C: argument form of open(2) is available. | |
| 33 | ?C:. | |
| 34 | ?H:#$d_open3 HAS_OPEN3 /**/ | |
| 35 | ?H:. | |
| 36 | ?W:%<:O_RDONLY O_WRONLY O_RDWR O_NDELAY O_APPEND O_SYNC O_CREAT O_TRUNC | |
| 37 | ?W:%<:O_EXCL O_NONBLOCK | |
| 38 | ?F:!open3 | |
| 39 | ?LINT:set d_open3 | |
| 40 | ?LINT:change h_fcntl h_sysfile | |
| 41 | : Locate the flags for 'open()' | |
| 42 | echo " " | |
| 43 | $cat >open3.c <<'EOCP' | |
| 44 | #include <sys/types.h> | |
| 45 | #ifdef I_FCNTL | |
| 46 | #include <fcntl.h> | |
| 47 | #endif | |
| 48 | #ifdef I_SYS_FILE | |
| 49 | #include <sys/file.h> | |
| 50 | #endif | |
| 51 | int main() { | |
| 52 | if(O_RDONLY); | |
| 53 | #ifdef O_TRUNC | |
| 54 | exit(0); | |
| 55 | #else | |
| 56 | exit(1); | |
| 57 | #endif | |
| 58 | } | |
| 59 | EOCP | |
| 60 | : check sys/file.h first to get FREAD on Sun | |
| 61 | if $test `./findhdr sys/file.h` && \ | |
| 62 | $cc $cppflags "-DI_SYS_FILE" -o open3 open3.c >/dev/null 2>&1 ; then | |
| 63 | h_sysfile=true; | |
| 64 | echo "<sys/file.h> defines the O_* constants..." >&4 | |
| 65 | if ./open3; then | |
| 66 | echo "and you have the 3 argument form of open()." >&4 | |
| 67 | val="$define" | |
| 68 | else | |
| 69 | echo "but not the 3 argument form of open(). Oh, well." >&4 | |
| 70 | val="$undef" | |
| 71 | fi | |
| 72 | elif $test `./findhdr fcntl.h` && \ | |
| 73 | $cc "-DI_FCNTL" -o open3 open3.c >/dev/null 2>&1 ; then | |
| 74 | h_fcntl=true; | |
| 75 | echo "<fcntl.h> defines the O_* constants..." >&4 | |
| 76 | if ./open3; then | |
| 77 | echo "and you have the 3 argument form of open()." >&4 | |
| 78 | val="$define" | |
| 79 | else | |
| 80 | echo "but not the 3 argument form of open(). Oh, well." >&4 | |
| 81 | val="$undef" | |
| 82 | fi | |
| 83 | else | |
| 84 | val="$undef" | |
| 85 | ./warn "I can't find the O_* constant definitions! You got problems." | |
| 86 | fi | |
| 87 | set d_open3 | |
| 88 | eval $setvar | |
| 89 | $rm -f open3* | |
| 90 |