fail configure on --enable-shared if -Bsymbolic-functions doesn't work
previously, a warning was issued in this case no matter what, even if
--disable-shared was used. now, the default for --enable-shared is
changed from "yes" to "auto", and the warning is issued by default,
but becomes an error if --enable-shared is used, and the test is
suppressed completely if --disable-shared is used.
diff --git a/configure b/configure
index 03c193d..0cff13d 100755
--- a/configure
+++ b/configure
@@ -123,7 +123,7 @@
optimize=auto
debug=no
warnings=no
-shared=yes
+shared=auto
static=yes
wrapper=auto
@@ -412,12 +412,15 @@
tryflag CFLAGS_AUTO -fno-stack-protector
tryldflag LDFLAGS_AUTO -Wl,--hash-style=both
+test "$shared" = "no" || {
# Disable dynamic linking if ld is broken and can't do -Bsymbolic-functions
LDFLAGS_DUMMY=
tryldflag LDFLAGS_DUMMY -Wl,-Bsymbolic-functions || {
+test "$shared" = "yes" && fail "$0: error: linker cannot build shared library"
printf "warning: disabling dynamic linking support\n"
shared=no
}
+}
# Find compiler runtime library
test -z "$LIBCC" && tryldflag LIBCC -lgcc && tryldflag LIBCC -lgcc_eh