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| author | Ivan Maidanski <ivmai@mail.ru> | 2017-06-09 19:42:54 +0300 |
|---|---|---|
| committer | Ivan Maidanski <ivmai@mail.ru> | 2017-06-09 19:42:54 +0300 |
| commit | bfd8345dce69ea363a25a5824c7544db3b4aa8ce (patch) | |
| tree | 6d40a9aacec9611ac0a3e7f823a363a1489d52a2 /configure.ac | |
| parent | 4530166b0b4befe5e9a68be632c847b95aaf7627 (diff) | |
| download | bdwgc-bfd8345dce69ea363a25a5824c7544db3b4aa8ce.tar.gz | |
Compile checksums.c only if --with-checksums is given (configure)
New configure option (--with-checksums) is added, mainly to workaround
'checksums.a has no symbols' link warning (observed on Darwin).
* Makefile.am [!SINGLE_GC_OBJ] (libgc_la_SOURCES): Do not add checksums.c
unless CHECKSUMS.
* configure.ac (checksums): New AC_ARG_WITH.
* configure.ac [with_checksums && (enable_munmap || THREADS!=none)]:
Issue AC_MSG_ERROR.
* configure.ac (CHECKSUMS): New AC_DEFINE and AM_CONDITIONAL if
with_checksums.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 309fb702..603773d5 100644 --- a/configure.ac +++ b/configure.ac @@ -908,6 +908,22 @@ else fi fi +AC_ARG_WITH([checksums], + [AS_HELP_STRING([--with-checksums], + [Report on erroneously cleared dirty bits and + unexpectedly altered stubborn objects, at + substantial performance cost; use only for debugging + of the incremental collector])]) +if test x$with_checksums = xyes; then + if test x$enable_munmap != x -o x$THREADS != xnone; then + AC_MSG_ERROR([CHECKSUMS not compatible with USE_MUNMAP or threads]) + fi + AC_DEFINE([CHECKSUMS], 1, + [Erroneously cleared dirty bits checking. Use only for + debugging of the incremental collector.]) +fi +AM_CONDITIONAL([CHECKSUMS], test x$with_checksums = xyes) + AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host") AC_ARG_ENABLE(werror, [--enable-werror Pass -Werror to the C compiler], |