Changeset: 2dcfeb77647c for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=2dcfeb77647c
Modified Files:
configure.ag
Branch: Jul2012
Log Message:
On Solaris we want to use libumem or mtmalloc, so check for those.
On Solaris there are lots of malloc implementations. According to
umem_alloc(3MALLOC):
· The malloc(3C), bsdmalloc(3MALLOC), and malloc(3MALLOC) functions
have no support for concurrency. The libumem and mtmalloc(3MALLOC)
functions support concurrent allocations.
· The bsdmalloc(3MALLOC) functions afford better performance but are
space-inefficient.
· The malloc(3MALLOC) functions are space-efficient but have slower
performance.
· The standard, fully SCD-compliant malloc(3C) functions are a
trade-off between performance and space-efficiency.
· The mtmalloc(3MALLOC) functions provide fast, concurrent malloc()
implementations that are not space-efficient.
· The libumem functions provide a fast, concurrent allocation
implementation that in most cases is more space-efficient than
mtmalloc(3MALLOC).
So we want libumem if available, or else mtmalloc.
diffs (14 lines):
diff --git a/configure.ag b/configure.ag
--- a/configure.ag
+++ b/configure.ag
@@ -1759,7 +1759,9 @@ AC_CHECK_LIB(m, sqrt, [ MATH_LIBS="-lm"
AC_SUBST(MATH_LIBS)
MALLOC_LIBS=""
-AC_CHECK_LIB(malloc, malloc, [ MALLOC_LIBS="-lmalloc" ] )
+AC_CHECK_LIB(umem, malloc, [ MALLOC_LIBS="-lumem" ],
+ AC_CHECK_LIB(mtmalloc, malloc, [ MALLOC_LIBS="-lmtmalloc" ],
+ AC_CHECK_LIB(malloc, malloc, [ MALLOC_LIBS="-lmalloc" ] )))
AC_SUBST(MALLOC_LIBS)
KVM_LIBS=""
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