Hi, the pdfTeX team is looking for help tracking down a bug in g++ (or in our code). The bug: If the trunk of pdftex is compiled with -O, PDF inclusion fails. With -O0, everything is fine. This happens with g++ (GCC) 3.3.5 (propolice) (OpenBSD 4.1) g++ (GCC) 4.1.0 (SUSE Linux) (SuSE 10.1) g++ (GCC) 4.1.2 20061115 (prerelease) (SUSE Linux) (SuSE 10.2) gcc (GCC) 4.1.2 (Ubuntu 4.1.2-0ubuntu4) (Ubuntu 7.04) We have tracked it down to one source file; if it is compiled with -O, we get the above error and valgrind screams: ==26759== Conditional jump or move depends on uninitialised value(s) ==26759== at 0x49DE04: read_pdf_info (pdftoepdf.cc:168) ==26759== by 0x49BF2C: readimage (writeimg.c:295) ==26759== by 0x474841: scanimage (pdftex3.c:3507) ==26759== by 0x478308: doextension (pdftex3.c:4762) ==26759== by 0x47618C: doextension (pdftex3.c:4105) ==26759== by 0x479A7B: maincontrol (pdftex3.c:5738) ==26759== by 0x4170A9: mainbody (pdftexini.c:5752) ==26759== by 0x47FB3B: main (pdftexextra.c:353) I'm at loss on how to fix this. Please contact me offlist if you are willing to help. Thanks in advance Martin