Changes between Version 15 and Version 16 of ECW

Timestamp:

May 24, 2013, 11:51:28 AM (11 years ago)

Author:

johanh

Comment:

Added note about workaround for libecwj2 crash when reading JPG2000 files

ECW

@@ -99 +99 @@
 }}}
 
-By default, the '''libecwj''' is installed using installation prefix pointing to '''/usr/local'''. You can change this location with '''--prefix''' option of '''configure''' script. Run ''./configure --help'' for more details. If '''libecwj''' is compiled with '''--prefix''' (e.g. /usr/local/libecwj2-3.3) make install fails, because <prefix>/include is not created automatically. do a '''mkdir <prefix>/include''' (e.g. mkdir /usr/local/libecwj2-3.3/include) and run '''make install''' again. 
+By default, the '''libecwj''' is installed using installation prefix pointing to '''/usr/local'''. You can change this location with '''--prefix''' option of '''configure''' script. Run ''./configure --help'' for more details. If '''libecwj''' is compiled with '''--prefix''' (e.g. /usr/local/libecwj2-3.3) make install fails, because <prefix>/include is not created automatically. do a '''mkdir <prefix>/include''' (e.g. mkdir /usr/local/libecwj2-3.3/include) and run '''make install''' again.
 
+On recent platforms (Fedora 16/17/18 and RHEL/CentOS 6) libecwj2 can crash you program when reading JPG2000-files. The error is in the XML-handling code that is bundled with libecwj2 and apparently this has become an issue with recent compilers. One workaround on the above mentioned platforms is to disable optimization when compiling libecwj2. This can be done by passing -O0 to configure:
+
+{{{
+$ ./configure CFLAGS="-O0" CXXFLAGS="-O0"
+}}}
+
+or to make:
+
+{{{
+$ make CFLAGS="-O0" CXXFLAGS="-O0"
+}}}
 === Mac OS X notes ===