[Octave-bug-tracker] [bug #46521] [octave forge] (communications) fails to build with latest stable octave

[John Donoghue]

Follow-up Comment #47, bug #46521 (project octave):

I have a hd5 one I need in order to commpile in fedra 31 at least - I cant
remember now if it was posted eslewhere that does a fall back if hdf5 isnt
found by pkg config

--- a/src/configure.ac  Fri Dec 20 18:39:25 2019 -0500
+++ b/src/configure.ac  Sun Dec 22 08:40:10 2019 -0500
@@ -142,11 +142,29 @@
 LDFLAGS=$save_altsyms_LDFLAGS
 LIBS=$save_altsyms_LIBS
 
-# check for HDF5
+have_hdf5=no
+# check for HDF5 using pkg-config
 PKG_CHECK_MODULES([HDF5],[hdf5],
- [],
- [AC_MSG_ERROR([hdf5 not found])]
+ [have_hdf5=yes ],
+ []
 )
+if test $have_hdf5 = no; then
+  save_CPPFLAGS="$CPPFLAGS"
+  save_LIBS="$LIBS"
+  AC_CHECK_LIB(hdf5,H5Fopen,
+    [
+     have_hdf5=yes
+     AC_CHECK_HEADERS([hdf5.h])
+     HDF5_LIBS=-lhdf5
+    ],
+    [],
+  )
+  CPPFLAGS="$save_CPPFLAGS"
+  LIBS="$save_LIBS"
+fi
+if test $have_hdf5 = no; then
+  AC_MSG_ERROR([hdf5 not found])
+fi


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