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-rw-r--r--vms/src/make.com7
1 files changed, 6 insertions, 1 deletions
diff --git a/vms/src/make.com b/vms/src/make.com
index 343ab58..3dcecf1 100644
--- a/vms/src/make.com
+++ b/vms/src/make.com
@@ -11,7 +11,12 @@ $! Makefile for VMS systems.
$!
$! Make HDF5 library
$!
-$! ccopt = "/float=ieee_float/define=H5_VMS"
+$! The next two lines should be uncommented only when building by hand in the
+$! current directory. Use build.com in the vms directory to build
+$! the distribution. Make sure that location of the zlib library is correct.
+$!
+$! define zlib_dir sys$sysusers:[pourmal.zlib-1_2_3]
+$! ccopt = "/float=ieee_float/define=(_LARGEFILE,H5_VMS)/include=zlib_dir"
$ ccc := cc 'ccopt
$ ccc h5detect.c
$ link h5detect