[PATCH/Cygwin] Build shared libs with --enable-auto-image-base

[Corinna Vinschen]

Hi,

in the Cygwin net distribution I started to build the ruby package
with the additional -Wl,--enable-auto-image-base flag in the DLDFLAGS
Makefile variable. The idea is to avoid the neccessity to rebase the
shared libs as much as possible. I'm wondering if you'd like to apply
the below patch to the ruby configure.in file, which accomplishes this
behaviour.

--- configure.in.ORIG 2007-02-27 12:57:20.012314100 +0100
+++ configure.in 2007-02-27 11:48:54.848883000 +0100
@@ -1030,7 +1030,7 @@ if test "$with_dln_a_out" != yes; then
rb_cv_dlopen=yes;;
cygwin*|mingw*) : ${LDSHARED="${CC} -shared -s"}
XLDFLAGS="$XLDFLAGS -Wl,--stack,0x02000000"
- DLDFLAGS="${DLDFLAGS} -Wl,--enable-auto-import,--export-all"
+ DLDFLAGS="${DLDFLAGS} -Wl,--enable-auto-image-base -Wl,--enable-auto-import,--export-all"
: ${LIBPATHENV=""}
rb_cv_dlopen=yes ;;
hiuxmpp) : ${LDSHARED='ld -r'} ;;

Btw., what I don't quite understand is this: What is the cygwin
subdirectory with the GNUMakefile.in for? It uses old and deprecated
methods like using dllwrap to create shared libs on Cygwin. However, I
never used it to build the Cygwin net distro ruby package, which always
worked fine. So I'm wondering if the cygwin subdir and the funny
GNUMakefile.in could just be removed.


Thanks,
Corinna

 

[Corinna Vinschen]

Btw., what I don't quite understand is this: What is the cygwin
subdirectory with the GNUMakefile.in for? It uses old and deprecated
methods like using dllwrap to create shared libs on Cygwin. However, I
never used it to build the Cygwin net distro ruby package, which always

^^^^
but the normal Makefile instead

worked fine. So I'm wondering if the cygwin subdir and the funny
GNUMakefile.in could just be removed.

Corinna