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-rw-r--r--config/mkstemp.m489
1 files changed, 89 insertions, 0 deletions
diff --git a/config/mkstemp.m4 b/config/mkstemp.m4
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index 0000000..4af0f0a
--- /dev/null
+++ b/config/mkstemp.m4
@@ -0,0 +1,89 @@
+#serial 4
+
+# On some hosts (e.g., HP-UX 10.20, SunOS 4.1.4, Solaris 2.5.1), mkstemp has a
+# silly limit that it can create no more than 26 files from a given template.
+# Other systems lack mkstemp altogether.
+# On OSF1/Tru64 V4.0F, the system-provided mkstemp function can create
+# only 32 files per process.
+# On systems like the above, arrange to use the replacement function.
+AC_DEFUN([UTILS_FUNC_MKSTEMP],
+[dnl
+ AC_REPLACE_FUNCS(mkstemp)
+ if test $ac_cv_func_mkstemp = no; then
+ utils_cv_func_mkstemp_limitations=yes
+ else
+ AC_CACHE_CHECK([for mkstemp limitations],
+ utils_cv_func_mkstemp_limitations,
+ [
+ AC_TRY_RUN([
+# include <stdlib.h>
+ int main ()
+ {
+ int i;
+ for (i = 0; i < 70; i++)
+ {
+ char template[] = "conftestXXXXXX";
+ int fd = mkstemp (template);
+ if (fd == -1)
+ exit (1);
+ close (fd);
+ }
+ exit (0);
+ }
+ ],
+ utils_cv_func_mkstemp_limitations=no,
+ utils_cv_func_mkstemp_limitations=yes,
+ utils_cv_func_mkstemp_limitations=yes
+ )
+ ]
+ )
+ fi
+
+ if test $utils_cv_func_mkstemp_limitations = yes; then
+ AC_LIBOBJ(mkstemp)
+ AC_LIBOBJ(tempname)
+ AC_DEFINE(mkstemp, rpl_mkstemp,
+ [Define to rpl_mkstemp if the replacement function should be used.])
+ gl_PREREQ_MKSTEMP
+ jm_PREREQ_TEMPNAME
+ fi
+])
+
+# Prerequisites of lib/mkstemp.c.
+AC_DEFUN([gl_PREREQ_MKSTEMP],
+[
+ AH_BOTTOM(
+ [
+ #ifndef HAVE_MKSTEMP
+ #ifdef __cplusplus
+ extern "C" {
+ #endif
+ int rpl_mkstemp (char *templ);
+ #ifdef __cplusplus
+ }
+ #endif
+ #endif
+ ])
+])
+
+# Prerequisites of lib/tempname.c.
+AC_DEFUN([jm_PREREQ_TEMPNAME],
+[
+ AC_REQUIRE([AC_HEADER_STAT])
+ AC_CHECK_HEADERS_ONCE(fcntl.h sys/time.h unistd.h)
+ AC_CHECK_HEADERS(stdint.h)
+ AC_CHECK_FUNCS(__secure_getenv gettimeofday lstat)
+ AC_CHECK_DECLS_ONCE(getenv)
+ # AC_REQUIRE([jm_AC_TYPE_UINTMAX_T])
+
+ dnl Under Win32, mkdir prototype in io.h has only one arg
+ AC_MSG_CHECKING(whether mkdir accepts only one arg)
+ AC_TRY_COMPILE([#include <sys/types.h>
+ #include <sys/stat.h>
+ #include <fcntl.h>], [
+ mkdir("")
+ ], [ AC_MSG_RESULT(yes)
+ AC_DEFINE(MKDIR_TAKES_ONE_ARG,[],[Define if mkdir accepts only one arg]) ],
+ [ AC_MSG_RESULT(no)
+ ])
+])
personal git repositories of Harald Welte. Your mileage may vary