As reported in the PR, the toplevel configure test for libpwl doesn't
work since it fails to link with libstdc++. The following patch
corrects this.
There were a couple of issues:
* One cannot use LDFLAGS here since that is passed to $CC before -lpwl,
which of course fails with a static libpwl. I'm using LIBS instead.
* It was suggested to add $stage1_libs to LIBS, but I go for -lstdc++
-lm instead. I seriously doubt we can make bootstrap work with a
non-g++ C++ compiler here, especially with Go included which is
written in C++ itself. This would mean linking both the foreign C++
runtime libraries and libstdc++ into the executables, which seems to
be a recipe for disaster.
This patch allowed a i386-pc-solaris2.11 with ppl/cloog to finish and
all graphite tests passed.
Ok for mainline?
Rainer
2011-03-19 Rainer Orth <r...@cebitec.uni-bielefeld.de>
PR bootstrap/48120:
* configure.ac (pwllib): Use LIBS instead of LDFLAGS.
Add -lstdc++ -lm to LIBS.
* configure: Regenerate.
diff -r 3786717045e5 configure.ac
--- a/configure.ac Sat Mar 19 10:35:20 2011 +0100
+++ b/configure.ac Sat Mar 19 21:57:26 2011 +0100
@@ -1677,10 +1677,10 @@
if test "x$with_ppl" != xno; then
if test "x$pwllib" = x; then
- saved_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LDFLAGS $ppllibs"
- AC_CHECK_LIB(pwl,PWL_handle_timeout,[pwllib="-lpwl"])
- LDFLAGS="$saved_LDFLAGS"
+ saved_LIBS="$LIBS"
+ LIBS="$LIBS $ppllibs -lstdc++ -lm"
+ AC_CHECK_LIB(pwl, PWL_handle_timeout, [pwllib="-lpwl"])
+ LIBS="$saved_LIBS"
fi
ppllibs="$ppllibs -lppl_c -lppl $pwllib -lgmpxx"
--
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University
