forked from enlightenment/efl
add a check for c99 %a format support - so all those people with mysterious
errors will know why and who to contact for fixes (not us!) SVN revision: 19763
This commit is contained in:
parent
8ff26002a5
commit
ba5cc5b100
|
@ -55,17 +55,39 @@ dnl Check whether the null pointer is zero on this arch
|
||||||
AC_MSG_CHECKING([value of the null pointer])
|
AC_MSG_CHECKING([value of the null pointer])
|
||||||
AC_TRY_RUN([
|
AC_TRY_RUN([
|
||||||
#include <stdlib.h>
|
#include <stdlib.h>
|
||||||
int main () {
|
int main (int argc, char **argv) {
|
||||||
void *foo = NULL;
|
void *foo = NULL;
|
||||||
int bar = (int) foo;
|
int bar = (int)foo;
|
||||||
|
return (int)foo;
|
||||||
return (int) foo;}
|
}
|
||||||
], AC_MSG_RESULT([\o/]), [
|
], AC_MSG_RESULT([yes]), [
|
||||||
AC_MSG_RESULT([o_O])
|
AC_MSG_RESULT([no])
|
||||||
AC_MSG_WARN([Your system is a bit too funny, eet might not work properly])
|
AC_MSG_WARN([Your system is a bit too funny, eet might not work properly])
|
||||||
], AC_MSG_WARN([Cannot check when cross-compiling -- assuming null is okay])
|
], AC_MSG_WARN([Cannot check when cross-compiling -- assuming null is okay])
|
||||||
)
|
)
|
||||||
|
|
||||||
|
AC_MSG_CHECKING([OS libc C99 '%a' support])
|
||||||
|
AC_TRY_RUN([
|
||||||
|
#include <stdio.h>
|
||||||
|
int main(int argc, char **argv) {
|
||||||
|
char buf[4096];
|
||||||
|
float ival = 0.1234, oval = 0.0;
|
||||||
|
snprintf(buf, sizeof(buf), "%a", (double)ival);
|
||||||
|
sscanf(buf, "%a", &oval);
|
||||||
|
if (ival != oval) return -1;
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
], AC_MSG_RESULT([yes]), [
|
||||||
|
AC_MSG_RESULT([no])
|
||||||
|
AC_MSG_ERROR([Unsupported Operating System!
|
||||||
|
Your OS does not support C99's '%a' string format. Eet cannot function without
|
||||||
|
it. Please contact your OS vendor to get updates for C99 '%a' floating point
|
||||||
|
format read/write support or change operating systems for one with support
|
||||||
|
for an already very old standard. (Linux is known to support this, as is
|
||||||
|
Solaris 10)])
|
||||||
|
], AC_MSG_WARN([Cannot check when cross-compiling -- assuming C99 '%a' support is OK])
|
||||||
|
)
|
||||||
|
|
||||||
if test "x${bindir}" = 'x${exec_prefix}/bin'; then
|
if test "x${bindir}" = 'x${exec_prefix}/bin'; then
|
||||||
if test "x${exec_prefix}" = "xNONE"; then
|
if test "x${exec_prefix}" = "xNONE"; then
|
||||||
if test "x${prefix}" = "xNONE"; then
|
if test "x${prefix}" = "xNONE"; then
|
||||||
|
|
Loading…
Reference in New Issue