https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61831
--- Comment #5 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > Confirmed with 4.9.1 revision r212339. AFAICT revision r210749 is OK. > I suspect r211405 for 4.10 and r212329 for 4.9. Can you revert r212329 > and see if the error disappear? I am afraid that I am the culprit, i.e., r212329: I get the error with r209838 + the patch in r212329. However the failures are not exactly the same: with 4.9.1 revision r212339, it is | Creating decay process library for particle W+ | Process library 'default_lib_dp24': initialized | decay_p24_1: W+ => dbar u | Process library 'default_lib_dp24': recorded process 'decay_p24_1' | decay_p24_2: ?O => sbar c | Process library 'default_lib_dp24': recorded process 'decay_p24_2' | decay_p24_3: => e+ nue whizard(32872,0x7fff7738d310) malloc: *** error for object 0x7f805874ea60: pointer being freed was not allocated *** set a breakpoint in malloc_error_break to debug while with r209838 + patch, it is | Creating decay process library for particle W+ | Process library 'default_lib_dp24': initialized | decay_p24_1: W+ => dbar u | Process library 'default_lib_dp24': recorded process 'decay_p24_1' | decay_p24_2: => sbar c | Process library 'default_lib_dp24': recorded process 'decay_p24_2' whizard(36947,0x7fff7738d310) malloc: *** error for object 0x7fb8c3755810: pointer being freed was not allocated *** set a breakpoint in malloc_error_break to debug For 4.9.0, I get | Creating decay process library for particle W+ | Process library 'default_lib_dp24': initialized | decay_p24_1: W+ => dbar u | Process library 'default_lib_dp24': recorded process 'decay_p24_1' | decay_p24_2: W+ => sbar c | Process library 'default_lib_dp24': recorded process 'decay_p24_2' | decay_p24_3: W+ => e+ nue | Process library 'default_lib_dp24': recorded process 'decay_p24_3' | decay_p24_4: W+ => mu+ numu | Process library 'default_lib_dp24': recorded process 'decay_p24_4' | decay_p24_5: W+ => tau+ nutau | Process library 'default_lib_dp24': recorded process 'decay_p24_5' | Integrate: current process library needs compilation | Process library 'default_lib_dp24': compiling ... | Process library 'default_lib_dp24': writing makefile | Process library 'default_lib_dp24': writing driver | Process library 'default_lib_dp24': creating source code rm -f decay_p24_1_i1.f90 rm -f opr_decay_p24_1_i1.mod rm -f decay_p24_1_i1.lo rm -f decay_p24_2_i1.f90 rm -f opr_decay_p24_2_i1.mod rm -f decay_p24_2_i1.lo rm -f decay_p24_3_i1.f90 rm -f opr_decay_p24_3_i1.mod rm -f decay_p24_3_i1.lo rm -f decay_p24_4_i1.f90 rm -f opr_decay_p24_4_i1.mod rm -f decay_p24_4_i1.lo rm -f decay_p24_5_i1.f90 rm -f opr_decay_p24_5_i1.mod rm -f decay_p24_5_i1.lo /usr/local/bin/omega_SM.opt -o decay_p24_1_i1.f90 -target:whizard -target:parameter_module parameters_SM -target:module opr_decay_p24_1_i1 -target:md5sum 'B42EAF21C73773800B93C9AE1495DD00' -fusion:progress -decay 'W+ -> dbar u' make: /usr/local/bin/omega_SM.opt: Command not found make: *** [decay_p24_1_i1.f90] Error 127 | command: make source -j1 -f default_lib_dp24.makefile | Return code = 512 ****************************************************************************** ****************************************************************************** *** FATAL ERROR: System command returned with nonzero status code ****************************************************************************** ****************************************************************************** WHIZARD run aborted.