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Updated with AC_LANG_SOURCE directives

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Please see this informative thread on bug-autoconf:
http://www.mail-archive.com/bug-autoconf@gnu.org/msg03052.html
This commit is contained in:
Extravagant
2012-02-12 22:23:40 +00:00
parent ba30dcd7cf
commit f1852cd222
3 changed files with 55 additions and 56 deletions
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scripts/common.m4
+23 -24
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@@ -99,11 +99,11 @@ AC_DEFUN([TORRENT_OTFD], [
AC_LANG_PUSH(C++)
AC_MSG_CHECKING(for proper overloaded template function disambiguation)
AC_COMPILE_IFELSE(
[[template <typename T> void f(T&) {}
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
template <typename T> void f(T&) {}
template <typename T> void f(T*) {}
int main() { int *i = 0; f(*i); f(i); }
]],
])],
[
AC_MSG_RESULT(yes)
], [
@@ -119,24 +119,24 @@ AC_DEFUN([TORRENT_MINCORE_SIGNEDNESS], [
AC_LANG_PUSH(C++)
AC_MSG_CHECKING(signedness of mincore parameter)
AC_COMPILE_IFELSE(
[[#include <sys/types.h>
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#include <sys/types.h>
#include <sys/mman.h>
#include <unistd.h>
void f() { mincore((char*)0, 0, (unsigned char*)0); }
]],
])],
[
AC_DEFINE(USE_MINCORE, 1, Use mincore)
AC_DEFINE(USE_MINCORE_UNSIGNED, 1, use unsigned char* in mincore)
AC_MSG_RESULT(unsigned)
],
[
AC_COMPILE_IFELSE(
[[#include <sys/types.h>
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#include <sys/types.h>
#include <sys/mman.h>
#include <unistd.h>
void f() { mincore((char*)0, 0, (char*)0); }
]],
])],
[
AC_DEFINE(USE_MINCORE, 1, Use mincore)
AC_DEFINE(USE_MINCORE_UNSIGNED, 0, use char* in mincore)
@@ -168,11 +168,11 @@ AC_DEFUN([TORRENT_MINCORE], [
AC_DEFUN([TORRENT_CHECK_MADVISE], [
AC_MSG_CHECKING(for madvise)
AC_COMPILE_IFELSE(
[[#include <sys/types.h>
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#include <sys/types.h>
#include <sys/mman.h>
void f() { static char test[1024]; madvise((void *)test, sizeof(test), MADV_NORMAL); }
]],
])],
[
AC_MSG_RESULT(yes)
AC_DEFINE(USE_MADVISE, 1, Use madvise)
@@ -184,10 +184,9 @@ AC_DEFUN([TORRENT_CHECK_MADVISE], [
AC_DEFUN([TORRENT_CHECK_POPCOUNT], [
AC_MSG_CHECKING(for __builtin_popcount)
AC_COMPILE_IFELSE(
[[
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
void f() { __builtin_popcount(0); }
]],
])],
[
AC_MSG_RESULT(yes)
AC_DEFINE(USE_BUILTIN_POPCOUNT, 1, Use __builtin_popcount.)
@@ -199,12 +198,12 @@ AC_DEFUN([TORRENT_CHECK_POPCOUNT], [
AC_DEFUN([TORRENT_CHECK_CACHELINE], [
AC_MSG_CHECKING(for cacheline)
AC_COMPILE_IFELSE(
[[#include <stdlib.h>
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#include <stdlib.h>
#include <linux/cache.h>
void* vptr __cacheline_aligned;
void f() { posix_memalign(&vptr, SMP_CACHE_BYTES, 42); }
]],
])],
[
AC_MSG_RESULT(found builtin)
dnl AC_DEFINE(LT_SMP_CACHE_BYTES, SMP_CACHE_BYTES, Largest L1 cache size we know of, should work on all archs.)
@@ -224,10 +223,10 @@ dnl Need to fix this so that it uses the stuff defined by the system.
AC_DEFUN([TORRENT_CHECK_EXECINFO], [
AC_MSG_CHECKING(for execinfo.h)
AC_RUN_IFELSE(
[[#include <execinfo.h>
AC_RUN_IFELSE([AC_LANG_SOURCE([
#include <execinfo.h>
int main() { backtrace((void**)0, 0); backtrace_symbols((char**)0, 0); return 0;}
]],
])],
[
AC_MSG_RESULT(yes)
AC_DEFINE(USE_EXECINFO, 1, Use execinfo.h)
@@ -239,8 +238,8 @@ AC_DEFUN([TORRENT_CHECK_EXECINFO], [
AC_DEFUN([TORRENT_CHECK_ALIGNED], [
AC_MSG_CHECKING(the byte alignment)
AC_RUN_IFELSE(
[[#include <inttypes.h>
AC_RUN_IFELSE([AC_LANG_SOURCE([
#include <inttypes.h>
int main() {
char buf[8] = { 0, 0, 0, 0, 1, 0, 0, 0 };
int i;
@@ -248,7 +247,7 @@ AC_DEFUN([TORRENT_CHECK_ALIGNED], [
if (*(uint32_t*)(buf + i) == 0) return -1;
return 0;
}
]],
])],
[
AC_MSG_RESULT(none needed)
], [