Fail at runtime if bzip2 is not compiled in, instead of compile time

1 files changed, 9 insertions, 3 deletions

diff --git a/doc/examples/bzip.cpp b/doc/examples/bzip.cpp
index 82bc3100a..a16d4f8fe 100644
--- a/doc/examples/bzip.cpp
+++ b/doc/examples/bzip.cpp
@@ -14,8 +14,6 @@ This file is in the public domain
 
 #if defined(BOTAN_EXT_COMPRESSOR_BZIP2)
   #include <botan/bzip2.h>
-#else
-  #error "You didn't compile the bzip module into Botan"
 #endif
 
 const std::string SUFFIX = ".bz2";
@@ -52,11 +50,19 @@ int main(int argc, char* argv[])
 
    try {
 
-      Botan::Filter* bzip;
+      Botan::Filter* bzip = 0;
+#ifdef BOTAN_EXT_COMPRESSOR_BZIP2
       if(decompress)
          bzip = new Botan::Bzip_Decompression(small);
       else
          bzip = new Botan::Bzip_Compression(level);
+#endif
+
+      if(!bzip)
+         {
+         std::cout << "Sorry, support for bzip2 not compiled into Botan\n";
+         return 1;
+         }
 
       Botan::Pipe pipe(bzip);