Mercurial > sdl-ios-xcode
comparison configure.in @ 3696:47d923feedb0
Fixed bug #935
Patrice Mandin
Hello,
I originally added pth support for threads in SDL 1.2 because on the Atari
platform we did not have any thread library.
I think pth support could be removed from SDL 1.3 for two reasons:
- Atari platform removed
- pth does not provides real (preemptive) threads, because it is user space,
and expect the application to call one of its function to give CPU to another
thread. So it is not exactly useful for applications, that expect threads to
run simultaneously.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 24 Jan 2010 20:47:20 +0000 |
| parents | be6fe5f0b1db |
| children | 1bceff8f008f |
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| 3695:f6a8be3fefa0 | 3696:47d923feedb0 |
|---|---|
| 1692 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts" | 1692 EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lts" |
| 1693 fi | 1693 fi |
| 1694 fi | 1694 fi |
| 1695 } | 1695 } |
| 1696 | 1696 |
| 1697 dnl See if we can use GNU pth library for threads | |
| 1698 CheckPTH() | |
| 1699 { | |
| 1700 dnl Check for pth support | |
| 1701 AC_ARG_ENABLE(pth, | |
| 1702 AC_HELP_STRING([--enable-pth], [use GNU pth library for multi-threading [[default=yes]]]), | |
| 1703 , enable_pth=yes) | |
| 1704 if test x$enable_threads = xyes -a x$enable_pth = xyes; then | |
| 1705 AC_PATH_PROG(PTH_CONFIG, pth-config, no) | |
| 1706 if test "$PTH_CONFIG" = "no"; then | |
| 1707 use_pth=no | |
| 1708 else | |
| 1709 use_pth=yes | |
| 1710 fi | |
| 1711 AC_MSG_CHECKING(pth) | |
| 1712 AC_MSG_RESULT($use_pth) | |
| 1713 if test "x$use_pth" = xyes; then | |
| 1714 AC_DEFINE(SDL_THREAD_PTH) | |
| 1715 SOURCES="$SOURCES $srcdir/src/thread/pth/*.c" | |
| 1716 SOURCES="$SOURCES $srcdir/src/thread/generic/SDL_syssem.c" | |
| 1717 SDL_CFLAGS="$SDL_CFLAGS `$PTH_CONFIG --cflags`" | |
| 1718 SDL_LIBS="$SDL_LIBS `$PTH_CONFIG --libs --all`" | |
| 1719 have_threads=yes | |
| 1720 fi | |
| 1721 fi | |
| 1722 } | |
| 1723 | |
| 1724 dnl See what type of thread model to use on Linux and Solaris | 1697 dnl See what type of thread model to use on Linux and Solaris |
| 1725 CheckPTHREAD() | 1698 CheckPTHREAD() |
| 1726 { | 1699 { |
| 1727 dnl Check for pthread support | 1700 dnl Check for pthread support |
| 1728 AC_ARG_ENABLE(pthreads, | 1701 AC_ARG_ENABLE(pthreads, |
| 1890 # Condition variables | 1863 # Condition variables |
| 1891 # We can fake these with semaphores and mutexes if necessary | 1864 # We can fake these with semaphores and mutexes if necessary |
| 1892 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c" | 1865 SOURCES="$SOURCES $srcdir/src/thread/pthread/SDL_syscond.c" |
| 1893 | 1866 |
| 1894 have_threads=yes | 1867 have_threads=yes |
| 1895 else | |
| 1896 CheckPTH | |
| 1897 fi | 1868 fi |
| 1898 fi | 1869 fi |
| 1899 } | 1870 } |
| 1900 | 1871 |
| 1901 dnl Determine whether the compiler can produce Win32 executables | 1872 dnl Determine whether the compiler can produce Win32 executables |