More Opus build work

configure.ac

@@ -151,6 +151,7 @@ AC_ARG_ENABLE(assertions, [  --enable-assertions     enable additional software
   AC_DEFINE([ENABLE_ASSERTIONS], , [Assertions])
 fi])
 
+if test "$OPUS_BUILD" != "true" ; then
 saved_CFLAGS="$CFLAGS"
 CFLAGS="$CFLAGS -fvisibility=hidden"
 AC_MSG_CHECKING([if ${CXX} supports -fvisibility=hidden])
@@ -160,6 +161,7 @@ AC_COMPILE_IFELSE([char foo;],
         AC_MSG_RESULT([no]))
 CFLAGS="$saved_CFLAGS $SYMBOL_VISIBILITY"
 AC_SUBST(SYMBOL_VISIBILITY)
+fi
 
 if test $ac_cv_c_compiler_gnu = yes ; then
         CFLAGS="$CFLAGS -W -Wstrict-prototypes -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wno-parentheses -Wno-unused-parameter -Wno-sign-compare"
@@ -202,7 +204,7 @@ fi
 AC_SUBST(SIZE16)
 AC_SUBST(SIZE32)
 
-if test "$OPUS_BUILD" == "true" ; then
+if test "$OPUS_BUILD" = "true" ; then
 AC_DEFINE(OPUS_BUILD, [], [We're part of Opus])
 fi
 

libcelt/celt.c

@@ -1597,6 +1597,7 @@ int celt_encode_with_ec_float(CELTEncoder * restrict st, const celt_sig * pcm, i
 
 #ifdef FIXED_POINT
 #ifndef DISABLE_FLOAT_API
+CELT_STATIC
 int celt_encode_with_ec_float(CELTEncoder * restrict st, const float * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes, ec_enc *enc)
 {
    int j, ret, C, N;
@@ -1625,6 +1626,7 @@ int celt_encode_with_ec_float(CELTEncoder * restrict st, const float * pcm, int
 }
 #endif /*DISABLE_FLOAT_API*/
 #else
+CELT_STATIC
 int celt_encode_with_ec(CELTEncoder * restrict st, const celt_int16 * pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes, ec_enc *enc)
 {
    int j, ret, C, N;
@@ -2122,9 +2124,11 @@ static void celt_decode_lost(CELTDecoder * restrict st, celt_word16 * restrict p
 }
 
 #ifdef FIXED_POINT
+CELT_STATIC
 int celt_decode_with_ec(CELTDecoder * restrict st, const unsigned char *data, int len, celt_int16 * restrict pcm, int frame_size, ec_dec *dec)
 {
 #else
+CELT_STATIC
 int celt_decode_with_ec_float(CELTDecoder * restrict st, const unsigned char *data, int len, celt_sig * restrict pcm, int frame_size, ec_dec *dec)
 {
 #endif
@@ -2480,6 +2484,7 @@ int celt_decode_with_ec_float(CELTDecoder * restrict st, const unsigned char *da
 
 #ifdef FIXED_POINT
 #ifndef DISABLE_FLOAT_API
+CELT_STATIC
 int celt_decode_with_ec_float(CELTDecoder * restrict st, const unsigned char *data, int len, float * restrict pcm, int frame_size, ec_dec *dec)
 {
    int j, ret, C, N;
@@ -2504,6 +2509,7 @@ int celt_decode_with_ec_float(CELTDecoder * restrict st, const unsigned char *da
 }
 #endif /*DISABLE_FLOAT_API*/
 #else
+CELT_STATIC
 int celt_decode_with_ec(CELTDecoder * restrict st, const unsigned char *data, int len, celt_int16 * restrict pcm, int frame_size, ec_dec *dec)
 {
    int j, ret, C, N;