| 1 | #serial 6
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| 2 |
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| 3 | # On some hosts (e.g., HP-UX 10.20, SunOS 4.1.4, Solaris 2.5.1), mkstemp has a
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| 4 | # silly limit that it can create no more than 26 files from a given template.
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| 5 | # Other systems lack mkstemp altogether.
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| 6 | # On OSF1/Tru64 V4.0F, the system-provided mkstemp function can create
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| 7 | # only 32 files per process.
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| 8 | # On systems like the above, arrange to use the replacement function.
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| 9 | AC_DEFUN([gl_FUNC_MKSTEMP],
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| 10 | [dnl
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| 11 | AC_REPLACE_FUNCS(mkstemp)
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| 12 | if test $ac_cv_func_mkstemp = no; then
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| 13 | gl_cv_func_mkstemp_limitations=yes
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| 14 | else
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| 15 | AC_CACHE_CHECK([for mkstemp limitations],
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| 16 | gl_cv_func_mkstemp_limitations,
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| 17 | [
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| 18 | AC_TRY_RUN([
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| 19 | # include <stdlib.h>
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| 20 | int main ()
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| 21 | {
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| 22 | int i;
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| 23 | for (i = 0; i < 70; i++)
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| 24 | {
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| 25 | char template[] = "conftestXXXXXX";
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| 26 | int fd = mkstemp (template);
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| 27 | if (fd == -1)
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| 28 | exit (1);
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| 29 | close (fd);
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| 30 | }
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| 31 | exit (0);
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| 32 | }
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| 33 | ],
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| 34 | gl_cv_func_mkstemp_limitations=no,
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| 35 | gl_cv_func_mkstemp_limitations=yes,
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| 36 | gl_cv_func_mkstemp_limitations=yes
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| 37 | )
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| 38 | ]
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| 39 | )
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| 40 | fi
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| 41 |
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| 42 | if test $gl_cv_func_mkstemp_limitations = yes; then
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| 43 | AC_LIBOBJ(mkstemp)
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| 44 | AC_LIBOBJ(tempname)
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| 45 | AC_DEFINE(mkstemp, rpl_mkstemp,
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| 46 | [Define to rpl_mkstemp if the replacement function should be used.])
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| 47 | gl_PREREQ_MKSTEMP
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| 48 | gl_PREREQ_TEMPNAME
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| 49 | fi
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| 50 | ])
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| 51 |
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| 52 | # Prerequisites of lib/mkstemp.c.
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| 53 | AC_DEFUN([gl_PREREQ_MKSTEMP],
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| 54 | [
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| 55 | ])
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| 56 |
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| 57 | # Prerequisites of lib/tempname.c.
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| 58 | AC_DEFUN([gl_PREREQ_TEMPNAME],
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| 59 | [
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| 60 | AC_REQUIRE([AC_HEADER_STAT])
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| 61 | AC_CHECK_HEADERS_ONCE(fcntl.h sys/time.h unistd.h)
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| 62 | AC_CHECK_HEADERS(stdint.h)
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| 63 | AC_CHECK_FUNCS(__secure_getenv gettimeofday)
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| 64 | AC_CHECK_DECLS_ONCE(getenv)
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| 65 | AC_REQUIRE([gl_AC_TYPE_UINTMAX_T])
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| 66 | ])
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