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authorAntoine Pitrou <solipsis@pitrou.net>2011-05-03 16:18:59 (GMT)
committerAntoine Pitrou <solipsis@pitrou.net>2011-05-03 16:18:59 (GMT)
commit6f26be09e0f88edc7b2cdb4d6695c79dd6105a28 (patch)
treef2d201cfd0bfa7dbfae209718f5b536a5f81f306 /configure.in
parentf44ce8748d4dcae7a359b147e5944acb4ed94638 (diff)
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Issue #11849: Make it more likely for the system allocator to release
free()d memory arenas on glibc-based systems. Patch by Charles-François Natali.
Diffstat (limited to 'configure.in')
-rw-r--r--configure.in9
1 files changed, 9 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index f1a3139..146289f 100644
--- a/configure.in
+++ b/configure.in
@@ -2608,6 +2608,15 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
[AC_MSG_RESULT(no)
])
+AC_MSG_CHECKING(whether mallopt can set malloc mmap threshold)
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <malloc.h>
+]], [[mallopt(M_MMAP_THRESHOLD, 256 * 1024)]])],
+ [AC_DEFINE(HAVE_MALLOPT_MMAP_THRESHOLD, 1, Define if mallopt can set malloc mmap threshold.)
+ AC_MSG_RESULT(yes)],
+ [AC_MSG_RESULT(no)
+])
+
dnl check for true
AC_CHECK_PROGS(TRUE, true, /bin/true)