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* configure.in (GUILE_FUNC_DECLARED): Name the cache variables

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starting with guile_cv_; ac_cv_ is autoconf's namespace.
The type of the argument to usleep varies from system to system,
as does the return type.  We really shouldn't be redefining usleep
at all, but I don't have time to clean that up before the 1.3
release.  It's on the schedule for afterwards.
* configure.in: Cache results from usleep return value test.
Test for the type of the usleep argument, and cache that too.
* acconfig.h (USLEEP_ARG_TYPE): New macro.
This commit is contained in:
Jim Blandy 1998-10-12 21:08:17 +00:00
parent dc70c99868
commit fc342a63d9
1 changed files with 31 additions and 9 deletions
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40
configure.in
View file

@ -119,11 +119,11 @@ AC_CHECK_FUNCS(ctermid ftime getcwd geteuid gethostent gettimeofday lstat mkdir
### Check for a declaration of FUNCTION in HEADERFILE; if it is
### not there, #define MISSING_FUNCTION_DECL.
AC_DEFUN(GUILE_FUNC_DECLARED, [
AC_CACHE_CHECK(for $1 declaration, ac_cv_func_$1_declared,
AC_CACHE_CHECK(for $1 declaration, guile_cv_func_$1_declared,
AC_EGREP_HEADER($1, $2,
ac_cv_func_$1_declared=yes,
ac_cv_func_$1_declared=no))
if test [x$ac_cv_func_]$1[_declared] = xno; then
guile_cv_func_$1_declared=yes,
guile_cv_func_$1_declared=no))
if test [x$guile_cv_func_]$1[_declared] = xno; then
AC_DEFINE([MISSING_]translit($1, [a-z], [A-Z])[_DECL])
fi
])
@ -133,12 +133,34 @@ GUILE_FUNC_DECLARED(bzero, string.h)
GUILE_FUNC_DECLARED(sleep, unistd.h)
GUILE_FUNC_DECLARED(usleep, unistd.h)
# On some systems usleep has no return value
AC_EGREP_HEADER(changequote(<, >)<void[ ][ ]*usleep>changequote([, ]),
/usr/include/unistd.h,
AC_DEFINE(USLEEP_RETURNS_VOID)
)
### On some systems usleep has no return value. Of course, we
### shouldn't be doing anything like this at all...
AC_CACHE_CHECK([return type of usleep], guile_cv_func_usleep_return_type,
[AC_EGREP_HEADER(changequote(<, >)<void[ ][ ]*usleep>changequote([, ]),
/usr/include/unistd.h,
[guile_cv_func_usleep_return_type=void],
[guile_cv_func_usleep_return_type=int])])
case "$guile_cv_func_usleep_return_type" in
"void" )
AC_DEFINE(USLEEP_RETURNS_VOID)
;;
esac
### To make things even worse, its argument type varies, which we also
### have to know. Ahh, complicity...
AC_CACHE_CHECK([type of usleep argument], guile_cv_func_usleep_arg_type,
[AC_EGREP_HEADER(changequote(<, >)<usleep[ ]*([ ]*unsigned[ ]*long[ ]*)>changequote([, ]),
/usr/include/unistd.h,
[guile_cv_func_usleep_arg_type=ulong],
[guile_cv_func_usleep_arg_type=uint])])
case "$guile_cv_func_usleep_arg_type" in
"ulong" )
AC_DEFINE(USLEEP_ARG_TYPE, unsigned long)
;;
"uint" )
AC_DEFINE(USLEEP_ARG_TYPE, unsigned)
;;
esac
dnl <GNU-WIN32 hacks>