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| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | configure.ac | 11 |
2 files changed, 11 insertions, 5 deletions
@@ -1,3 +1,8 @@ +2009-01-23 Roland McGrath <[email protected]> + + * configure.ac (__thread check): Use AC_LINK_IFELSE, in case of + building with compiler support but no working runtime support. + 2009-01-22 Ulrich Drepper <[email protected]> * Makefile.am (rpm): The tarball is now bzip2-compressed. diff --git a/configure.ac b/configure.ac index 3dcabbe1..657bf501 100644 --- a/configure.ac +++ b/configure.ac @@ -74,12 +74,13 @@ CFLAGS="$old_CFLAGS"]) AS_IF([test "x$ac_cv_c99" != xyes], AC_MSG_ERROR([gcc with C99 support required])) -AC_CACHE_CHECK([for gcc with TLS support], ac_cv_tls, [dnl -AC_COMPILE_IFELSE([dnl -__thread int a; int foo (int b) { return a + b; }], - ac_cv_tls=yes, ac_cv_tls=no)]) +AC_CACHE_CHECK([for __thread support], ac_cv_tls, [dnl +AC_LINK_IFELSE([dnl +AC_LANG_PROGRAM([[static __thread int a; int foo (int b) { return a + b; }]], + [[exit (foo (0));]])], + ac_cv_tls=yes, ac_cv_tls=no)]) AS_IF([test "x$ac_cv_tls" != xyes], - AC_MSG_ERROR([gcc with TLS support required])) + AC_MSG_ERROR([__thread support required])) LOCALEDIR=$datadir AC_SUBST(LOCALEDIR) |