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libtool: Don't fall back to static libraries if building them was disabled

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If -no-undefined was not specified but the platform didn't
support shared libraries with undefined symbols (e.g. Cygwin/
MinGW), static libraries were built instead of shared ones,
even if building them was explicitly disabled with --disable-
static configure option.

Fix this by stopping with a fatal error if a shared library
can't be built in this case instead of unexpectedly building a
static library instead.

* libltdl/config/ltmain.m4sh (func_mode_link()): Stop with
fatal error when trying to build a shared library without -no-
undefined on a platform not supporting undefined symbols in
shared libraries.

Copyright-paperwork-exempt: Yes
This commit is contained in:
Vadim Zeitlin 2013-10-09 17:35:13 -07:00 committed by Brooks Moses
parent 1c89ed8e1c
commit 12641bdc45
1 changed files with 6 additions and 3 deletions
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9
build-aux/ltmain.in
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@ -6984,9 +6984,12 @@ func_mode_link ()
# Check to see if the archive will have undefined symbols.
if test yes = "$allow_undefined"; then
if test unsupported = "$allow_undefined_flag"; then
func_warning "undefined symbols not allowed in $host shared libraries"
build_libtool_libs=no
build_old_libs=yes
if test "$build_old_libs" = yes; then
func_warning "undefined symbols not allowed in $host shared libraries; building static only"
build_libtool_libs=no
else
func_fatal_error "can't build $host shared library unless -no-undefined is specified"
fi
fi
else
# Don't allow undefined symbols.