Created attachment 222749 [details] SVN diff Hi, In case of usage "WITH_DEBUG", gegl requires libexecinfo.so for build. Here is error message occuried: ld: error: undefined symbol: backtrace_symbols_fd >>> referenced by gegl-buffer.c:349 (../gegl/buffer/gegl-buffer.c:349) >>> gegl/libgegl-0.4.so.0.427.1.p/buffer_gegl-buffer.c.o:(gegl_buffer_leaks) >>> referenced by gegl-buffer.c:939 (../gegl/buffer/gegl-buffer.c:939) >>> gegl/libgegl-0.4.so.0.427.1.p/buffer_gegl-buffer.c.o:(gegl_bt) ld: error: undefined symbol: backtrace >>> referenced by gegl-buffer.c:938 (../gegl/buffer/gegl-buffer.c:938) >>> gegl/libgegl-0.4.so.0.427.1.p/buffer_gegl-buffer.c.o:(gegl_bt) >>> referenced by gegl-buffer.c:922 (../gegl/buffer/gegl-buffer.c:922) >>> gegl/libgegl-0.4.so.0.427.1.p/buffer_gegl-buffer.c.o:(gegl_buffer_set_alloc_stack) cc: error: linker command failed with exit code 1 (use -v to see invocation) To fix it the patch adds lexecinfo into LDFLAGS. Testport is done on 12.2 and 13.0-BETA1. Thanks