Cache the results of all runtime checks.
This will be helpful to people who want to compile Python with a
cross-compiler. Now you can upload the configure script on your host
machine, run it with caching enabled, and download the cached results
on your build machine.
diff --git a/configure.in b/configure.in
index 652a751..ef2549e 100644
--- a/configure.in
+++ b/configure.in
@@ -873,10 +873,11 @@
AC_MSG_CHECKING(whether $CC accepts -fno-strict-aliasing)
ac_save_cc="$CC"
CC="$CC -fno-strict-aliasing"
+ AC_CACHE_VAL(ac_cv_no_strict_aliasing_ok,
AC_TRY_RUN([int main() { return 0; }],
ac_cv_no_strict_aliasing_ok=yes,
ac_cv_no_strict_aliasing_ok=no,
- ac_cv_no_strict_aliasing_ok=no)
+ ac_cv_no_strict_aliasing_ok=no))
CC="$ac_save_cc"
AC_MSG_RESULT($ac_cv_no_strict_aliasing_ok)
if test $ac_cv_no_strict_aliasing_ok = yes
@@ -2496,7 +2497,8 @@
# On Tru64, chflags seems to be present, but calling it will
# exit Python
AC_MSG_CHECKING(for chflags)
-AC_TRY_RUN([
+AC_CACHE_VAL(ac_cv_have_chflags,
+AC_TRY_RUN([[
#include <sys/stat.h>
#include <unistd.h>
int main(int argc, char*argv[])
@@ -2505,13 +2507,19 @@
return 1;
return 0;
}
-],AC_DEFINE(HAVE_CHFLAGS, 1, Define to 1 if you have the `chflags' function.)
- AC_MSG_RESULT(yes),
- AC_MSG_RESULT(no)
+]], ac_cv_have_chflags=yes,
+ ac_cv_have_chflags=no,
+ ac_cv_have_chflags=no)
)
+AC_MSG_RESULT($ac_cv_have_chflags)
+if test $ac_cv_have_chflags = yes
+then
+ AC_DEFINE(HAVE_CHFLAGS, 1, Define to 1 if you have the `chflags' function.)
+fi
AC_MSG_CHECKING(for lchflags)
-AC_TRY_RUN([
+AC_CACHE_VAL(ac_cv_have_lchflags,
+AC_TRY_RUN([[
#include <sys/stat.h>
#include <unistd.h>
int main(int argc, char*argv[])
@@ -2520,10 +2528,15 @@
return 1;
return 0;
}
-],AC_DEFINE(HAVE_LCHFLAGS, 1, Define to 1 if you have the `lchflags' function.)
- AC_MSG_RESULT(yes),
- AC_MSG_RESULT(no)
+]], ac_cv_have_lchflags=yes,
+ ac_cv_have_lchflags=no,
+ ac_cv_have_lchflags=no)
)
+AC_MSG_RESULT($ac_cv_have_lchflags)
+if test $ac_cv_have_lchflags = yes
+then
+ AC_DEFINE(HAVE_LCHFLAGS, 1, Define to 1 if you have the `lchflags' function.)
+fi
dnl Check if system zlib has *Copy() functions
dnl
@@ -2677,19 +2690,22 @@
#include <sys/socket.h>
#include <netdb.h>
#include <stdio.h>
-],[
-getaddrinfo(NULL, NULL, NULL, NULL);
-], [
-AC_MSG_RESULT(yes)
-AC_MSG_CHECKING(getaddrinfo bug)
-AC_TRY_RUN([
+], [getaddrinfo(NULL, NULL, NULL, NULL);],
+have_getaddrinfo=yes,
+have_getaddrinfo=no)
+AC_MSG_RESULT($have_getaddrinfo)
+if test $have_getaddrinfo = yes
+then
+ AC_MSG_CHECKING(getaddrinfo bug)
+ AC_CACHE_VAL(ac_cv_buggy_getaddrinfo,
+ AC_TRY_RUN([[
#include <sys/types.h>
#include <netdb.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
-main()
+int main()
{
int passive, gaierr, inet4 = 0, inet6 = 0;
struct addrinfo hints, *ai, *aitop;
@@ -2761,26 +2777,22 @@
if (aitop)
freeaddrinfo(aitop);
- exit(0);
+ return 0;
bad:
if (aitop)
freeaddrinfo(aitop);
- exit(1);
+ return 1;
}
-],
-AC_MSG_RESULT(good)
-buggygetaddrinfo=no,
-AC_MSG_RESULT(buggy)
-buggygetaddrinfo=yes,
-AC_MSG_RESULT(buggy)
-buggygetaddrinfo=yes)], [
-AC_MSG_RESULT(no)
-buggygetaddrinfo=yes
-])
+]], ac_cv_buggy_getaddrinfo=no,
+ ac_cv_buggy_getaddrinfo=yes,
+ ac_cv_buggy_getaddrinfo=yes))
+fi
-if test "$buggygetaddrinfo" = "yes"; then
- if test "$ipv6" = "yes"; then
+if test $have_getaddrinfo = no -o $ac_cv_buggy_getaddrinfo = yes
+then
+ if test $ipv6 = yes
+ then
echo 'Fatal: You must get working getaddrinfo() function.'
echo ' or you can specify "--disable-ipv6"'.
exit 1
@@ -3247,6 +3259,7 @@
# Multiprocessing check for broken sem_getvalue
AC_MSG_CHECKING(for broken sem_getvalue)
+AC_CACHE_VAL(ac_cv_broken_sem_getvalue,
AC_TRY_RUN([
#include <unistd.h>
#include <fcntl.h>
@@ -3267,11 +3280,16 @@
sem_close(a);
return res==-1 ? 1 : 0;
}
-]
-,AC_MSG_RESULT(no),
- AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_BROKEN_SEM_GETVALUE, 1, define to 1 if your sem_getvalue is broken.)
+], ac_cv_broken_sem_getvalue=no,
+ ac_cv_broken_sem_getvalue=yes,
+ ac_cv_broken_sem_getvalue=yes)
)
+AC_MSG_RESULT($ac_cv_broken_sem_getvalue)
+if test $ac_cv_broken_sem_getvalue = yes
+then
+ AC_DEFINE(HAVE_BROKEN_SEM_GETVALUE, 1,
+ [define to 1 if your sem_getvalue is broken.])
+fi
# determine what size digit to use for Python's longs
AC_MSG_CHECKING([digit size for Python's longs])
@@ -3528,6 +3546,7 @@
fi
AC_MSG_CHECKING(for broken poll())
+AC_CACHE_VAL(ac_cv_broken_poll,
AC_TRY_RUN([
#include <poll.h>
@@ -3555,7 +3574,7 @@
],
ac_cv_broken_poll=yes,
ac_cv_broken_poll=no,
-ac_cv_broken_poll=no)
+ac_cv_broken_poll=no))
AC_MSG_RESULT($ac_cv_broken_poll)
if test "$ac_cv_broken_poll" = yes
then
@@ -3757,6 +3776,7 @@
fi
AC_MSG_CHECKING(for %zd printf() format support)
+AC_CACHE_VAL(ac_cv_have_size_t_format,
AC_TRY_RUN([#include <stdio.h>
#include <stddef.h>
#include <string.h>
@@ -3790,10 +3810,17 @@
return 1;
return 0;
-}],
-[AC_MSG_RESULT(yes)
- AC_DEFINE(PY_FORMAT_SIZE_T, "z", [Define to printf format modifier for Py_ssize_t])],
- AC_MSG_RESULT(no))
+}
+], ac_cv_have_size_t_format=yes,
+ ac_cv_have_size_t_format=no,
+ ac_cv_have_size_t_format=no)
+)
+AC_MSG_RESULT($ac_cv_have_size_t_format)
+if test $ac_cv_have_size_t_format = yes
+then
+ AC_DEFINE(PY_FORMAT_SIZE_T, "z",
+ [Define to printf format modifier for Py_ssize_t])
+fi
AC_CHECK_TYPE(socklen_t,,
AC_DEFINE(socklen_t,int,
@@ -3807,6 +3834,7 @@
])
AC_MSG_CHECKING(for broken mbstowcs)
+AC_CACHE_VAL(ac_cv_broken_mbstowcs,
AC_TRY_RUN([
#include<stdlib.h>
int main() {
@@ -3818,7 +3846,7 @@
],
ac_cv_broken_mbstowcs=no,
ac_cv_broken_mbstowcs=yes,
-ac_cv_broken_mbstowcs=no)
+ac_cv_broken_mbstowcs=no))
AC_MSG_RESULT($ac_cv_broken_mbstowcs)
if test "$ac_cv_broken_mbstowcs" = yes
then