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| author | Jérémie Courrèges-Anglas <jca@wxcvbn.org> | 2014-02-20 02:02:02 +0100 |
|---|---|---|
| committer | Jérémie Courrèges-Anglas <jca@wxcvbn.org> | 2014-02-20 02:02:02 +0100 |
| commit | 59f798c7c52247c7b3f565f96639d1af34ac70b5 (patch) | |
| tree | 8360c61dc8c77def27dcbb8283cfd7334d43d9db /configure.ac | |
| parent | 4bdb7748383f6cc59c397fdce05192e59571de5f (diff) | |
| download | ratpoison-59f798c7c52247c7b3f565f96639d1af34ac70b5.zip | |
Test for __builtin_prefetch, not for __GNUC__.
* Fixes build with pcc.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index bc1aa03..faaa134 100644 --- a/configure.ac +++ b/configure.ac @@ -173,6 +173,19 @@ dnl Checks for library functions. AC_CHECK_FUNCS(getline getopt_long setenv setpgid setpgrp setsid) AC_CHECK_FUNCS(unsetenv vsnprintf) +AH_TEMPLATE([HAVE___BUILTIN_PREFETCH], + [Define to 1 if your compiler supports the `__builtin_prefetch' function.]) +AC_MSG_CHECKING([for __builtin_prefetch()]) +AC_LINK_IFELSE([AC_LANG_PROGRAM([], + [ + int a = 9; + __builtin_prefetch(&a); + return 0; + ])], + [AC_DEFINE([HAVE___BUILTIN_PREFETCH], 1) + AC_MSG_RESULT(yes)], + [AC_MSG_RESULT(no)]) + AM_LANGINFO_CODESET AC_CONFIG_FILES([Makefile doc/Makefile src/Makefile contrib/Makefile]) |