Resolve issue 28 and issue 29 - add compiler flag variables and SONAME fields.

Credit for the original patch goes to Gianfranco Costamagna (thanks!).
Also added a stderr warning if no flags are set at all, as this is almost
certainly wrong.



git-svn-id: https://cld2.googlecode.com/svn/trunk@194 b252ecd4-b096-bf77-eb8e-91563289f87e

internal/compile_libs.sh

@@ -14,7 +14,20 @@
 #  See the License for the specific language governing permissions and
 #  limitations under the License.
 
-g++ -shared -fPIC -O2 -m64 \
+if [ -z "${CFLAGS}" -a -z "${CXXFLAGS}" -a -z "${CPPFLAGS}" ]; then
+  echo "Warning: None of CFLAGS, CXXFLAGS or CPPFLAGS is set; you probably should enable some options." 1>&2
+fi
+if [ -n "${CFLAGS}" ]; then
+  echo "CFLAGS=${CFLAGS}"
+fi
+if [ -n "${CXXFLAGS}" ]; then
+  echo "CXXFLAGS=${CXXFLAGS}"
+fi
+if [ -n "${CPPFLAGS}" ]; then
+  echo "CPPFLAGS=${CPPFLAGS}"
+fi
+
+g++ $CFLAGS $CPPFLAGS $CXXFLAGS -shared -fPIC \
   cldutil.cc cldutil_shared.cc compact_lang_det.cc compact_lang_det_hint_code.cc \
   compact_lang_det_impl.cc  debug.cc fixunicodevalue.cc \
   generated_entities.cc  generated_language.cc generated_ulscript.cc  \
@@ -24,9 +37,9 @@ g++ -shared -fPIC -O2 -m64 \
   cld_generated_cjk_delta_bi_4.cc generated_distinct_bi_0.cc  \
   cld2_generated_quadchrome_2.cc cld2_generated_deltaoctachrome.cc \
   cld2_generated_distinctoctachrome.cc  cld_generated_score_quad_octa_2.cc  \
-  -o libcld2.so
+  -o libcld2.so $LDFLAGS -Wl,-soname=libcld2.so
 
-g++ -shared -fPIC -O2 -m64 \
+g++ $CFLAGS $CPPFLAGS $CXXFLAGS -shared -fPIC \
   cldutil.cc cldutil_shared.cc compact_lang_det.cc compact_lang_det_hint_code.cc \
   compact_lang_det_impl.cc  debug.cc fixunicodevalue.cc \
   generated_entities.cc  generated_language.cc generated_ulscript.cc  \
@@ -36,5 +49,5 @@ g++ -shared -fPIC -O2 -m64 \
   cld_generated_cjk_delta_bi_32.cc generated_distinct_bi_0.cc  \
   cld2_generated_quad0122.cc cld2_generated_deltaocta0122.cc \
   cld2_generated_distinctocta0122.cc  cld_generated_score_quad_octa_0122.cc  \
-  -o libcld2_full.so
+  -o libcld2_full.so $LDFLAGS -Wl,-soname=libcld2_full.so