http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46520
Tobias Burnus <burnus at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.6 Regression] |[4.6 Regression]
|libquadmath: Build also |libquadmath: fails at link
|with --enable-languages=c; |test on bare irons
|fails with some cross |
|targets |
--- Comment #6 from Tobias Burnus <burnus at gcc dot gnu.org> 2010-12-14
20:19:20 UTC ---
Current result for picochip-unknown-none:
checking how to run the C preprocessor... [...]
checking for sqrtl in -lm... configure: error: Link tests are not allowed after
GCC_NO_EXECUTABLES.
make[2]: *** [configure-target-libquadmath] Error 1
Draft patch - might be insufficient:
--- a/libquadmath/configure.ac
+++ b/libquadmath/configure.ac
@@ -109,8 +109,10 @@ esac
AC_SUBST(toolexecdir)
AC_SUBST(toolexeclibdir)
-AC_CHECK_LIB([m],[sqrtl],[AC_DEFINE([HAVE_SQRTL],[1],[libm includes sqrtl])])
-AC_CHECK_LIB([m],[cbrtl],[AC_DEFINE([HAVE_CBRTL],[1],[libm includes cbrtl])])
+if test x$gcc_no_link != xyes; then
+ AC_CHECK_LIB([m],[sqrtl],[AC_DEFINE([HAVE_SQRTL],[1],[libm includes
sqrtl])])
+ AC_CHECK_LIB([m],[cbrtl],[AC_DEFINE([HAVE_CBRTL],[1],[libm includes
cbrtl])])
+fi
# Check for symbol versioning (copied from libssp).
AC_MSG_CHECKING([whether symbol versioning is supported])
