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path: root/source/a/infozip/unzip-patches/unzip-6.0-bzip2-configure.patch
blob: b99bb4e4426c4373dbc2848921c7f0d197f2ff9f (about) (plain) (blame)
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diff -up unzip60/unix/configure.bzip2-configure unzip60/unix/configure
--- unzip60/unix/configure.bzip2-configure	2009-04-16 21:25:12.000000000 +0200
+++ unzip60/unix/configure	2009-11-18 11:22:14.598389194 +0100
@@ -640,7 +640,24 @@ else
     D_USE_BZ2="-DUSE_BZIP2"
     L_BZ2="${BZLF} -lbz2"
   else
-    echo "-- bzip2 sources not found - no bzip2 support"
+    echo "  Check if OS already has bzip2 library installed"
+    cat > conftest.c << _EOF_
+#include "bzlib.h"
+int main()
+{
+  bz_stream strm;
+  BZ2_bzCompressEnd(&strm);
+  return 0;
+}
+_EOF_
+    $CC $CFLAGS -o conftest conftest.c -lbz2 > /dev/null 2>/dev/null
+    if test $? -eq 0; then
+      echo "-- OS supports bzip2 - linking in bzip2"
+      D_USE_BZ2="-DUSE_BZIP2"
+      L_BZ2="${BZLF} -lbz2"
+    else
+      echo "-- Either bzlib.h or libbz2.a not found - no bzip2"
+    fi
   fi
 fi