Tested netcdf-4.4.0-rc3 on cygwin 64bit with the attached patch
to add shared lib capability.
The patch is a better version of the one I was using before for the
cygwin package releases.
The test with
--enable-shared --enable-netcdf4
is fine except ctest.c and ctest64.c as they segfault.
I presume the problem is in the test as copying the
ctest.c and ctest64.c from 4.3.3.1 version build is fine.
They do not segfault.
Same happened on 4.4.0-rc2
Regards
Marco
--- origsrc/netcdf-c-4.4.0-rc3/configure.ac 2015-10-08 21:25:39.000000000
+0200
+++ src/netcdf-c-4.4.0-rc3/configure.ac 2015-10-29 22:38:30.039691700 +0100
@@ -1145,6 +1144,19 @@ AH_BOTTOM(
# Access netcdf specific version of config.h
AH_BOTTOM([#include "ncconfigure.h"])
+AC_MSG_CHECKING([if libtool needs -no-undefined flag to build shared
libraries])
+case "`uname`" in
+ CYGWIN*|MINGW*|AIX*)
+ ## Add in the -no-undefined flag to LDFLAGS for libtool.
+ AC_MSG_RESULT([yes])
+ NOUNDEFINED=" -no-undefined"
+ ;;
+ *)
+ ## Don't add in anything.
+ AC_MSG_RESULT([no])
+ ;;
+esac
+
##################################################
# Uncomment this to keep a copy of autoconf defines at this point, for
# debugging purposes.
@@ -1163,6 +1175,7 @@ AC_SUBST([LDFLAGS])
AC_SUBST([AM_CFLAGS])
AC_SUBST([AM_CPPFLAGS])
AC_SUBST([AM_LDFLAGS])
+AC_SUBST([NOUNDEFINED])
# Args:
# 1. netcdf_meta.h variable
--- origsrc/netcdf-c-4.4.0-rc3/liblib/Makefile.am 2015-10-08
21:25:39.000000000 +0200
+++ src/netcdf-c-4.4.0-rc3/liblib/Makefile.am 2015-10-29 21:50:55.677096400
+0100
@@ -19,7 +19,7 @@ lib_LTLIBRARIES = libnetcdf.la
# for information regarding incrementing `-version-info`.
##
-libnetcdf_la_LDFLAGS = -version-info 10:0:3
+libnetcdf_la_LDFLAGS = -version-info 10:0:3 ${NOUNDEFINED}
libnetcdf_la_CPPFLAGS = ${AM_CPPFLAGS}
libnetcdf_la_LIBADD =
