Issue 90 in ctemplate: shared libraries (.dll) are not built in MinGW

[ctem...@googlecode.com]

Status: New
Owner: ----
Labels: Type-Defect Priority-Medium

New issue 90 by shat...@gmail.com: shared libraries (.dll) are not built in
MinGW
http://code.google.com/p/ctemplate/issues/detail?id=90

What steps will reproduce the problem?
1. Under MinGW, untar ctemplate and run ./configure
2. make && make install
3. Observe that there's no libctemplate*.dll files installed.

What is the expected output? What do you see instead?

.dll libraries should be built and installed

What version of the product are you using? On what operating system?

ctemplate-2.2

Please provide any additional information below.

libtool doesn't build shared libraries for Windows when -no-undefined
option is not specified. The solution is to add -no-undefined to *_LDFLAGS
variables for libraries in Makefile.am. With the attached patch, dll libs
are built just fine in MinGW.

Attachments:
ctemplate-dll.patch 2.2 KB

[ctem...@googlecode.com]

Comment #1 on issue 90 by olafv...@gmail.com: shared libraries (.dll) are

not built in MinGW
http://code.google.com/p/ctemplate/issues/detail?id=90

Why does MinGW require -no-undefined?

[ctem...@googlecode.com]

Comment #2 on issue 90 by shat...@gmail.com: shared libraries (.dll) are

not built in MinGW
http://code.google.com/p/ctemplate/issues/detail?id=90

libtool required that on Windows. That's because windows DLLs cannot have
undefined symbols. Requiring -no-undefined option for building DLLs is a
design decision made by libtool developers. Without -no-undefined, libtool
silently skips building DLLs and builds only static libs.

According to libtool docs, there's one more requirement for building DLLs:
AC_LIBTOOL_WIN32_DLL macro should be added to configure.ac before
AM_PROG_LIBTOOL. AC_LIBTOOL_WIN32_DLL doesn't seem to have any effect in my
setup, though. If you want to build DLLs in a compliant way, add that one
as well.

[ctem...@googlecode.com]

Updates:
Status: Fixed

Comment #3 on issue 90 by olafv...@gmail.com: shared libraries (.dll) are

not built in MinGW
http://code.google.com/p/ctemplate/issues/detail?id=90

Fixed in r130