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-rw-r--r--configure.ac15
1 files changed, 13 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac
index 64775fa63829..bda5e6eb01da 100644
--- a/configure.ac
+++ b/configure.ac
@@ -374,8 +374,11 @@ if test "x$with_lzma" != "xno"; then
AC_CACHE_CHECK(
[whether we have multithread support in lzma],
ac_cv_lzma_has_mt,
- [AC_COMPILE_IFELSE([
- AC_LANG_PROGRAM([[#include <lzma.h>]],
+ [AC_LINK_IFELSE([
+ AC_LANG_PROGRAM([[#include <lzma.h>]
+ [#if LZMA_VERSION < 50020000]
+ [#error unsupported]
+ [#endif]],
[[lzma_stream_encoder_mt(0, 0);]])],
[ac_cv_lzma_has_mt=yes], [ac_cv_lzma_has_mt=no])])
if test "x$ac_cv_lzma_has_mt" != xno; then
@@ -613,6 +616,14 @@ AC_CHECK_FUNCS([_get_timezone _localtime64_s _mkgmtime64])
# detects cygwin-1.7, as opposed to older versions
AC_CHECK_FUNCS([cygwin_conv_path])
+# DragonFly uses vfsconf, FreeBSD xvfsconf.
+AC_CHECK_TYPES(struct vfsconf,,,
+ [#if HAVE_SYS_TYPES_H
+ #include <sys/types.h>
+ #endif
+ #include <sys/mount.h>
+ ])
+
# There are several variants of readdir_r around; we only
# accept the POSIX-compliant version.
AC_COMPILE_IFELSE(