Fetching from GRASS GIS Addons repository (be patient)... Compiling... main.c:503:13: warning: array index 11 is past the end of the array (which contains 5 elements) [-Warray-bounds] strcat(multiple_output[11].name, postfixes[i]); ^ ~~ /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk/usr/include/secure/_string.h:133:61: note: expanded from macro 'strcat' __builtin___strcat_chk (dest, __VA_ARGS__, __darwin_obsz (dest)) ^~~~ /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk/usr/include/secure/_common.h:39:54: note: expanded from macro '__darwin_obsz' #define __darwin_obsz(object) __builtin_object_size (object, _USE_FORTIFY_LEVEL > 1 ? 1 : 0) ^~~~~~ main.c:495:2: note: array 'multiple_output' declared here MULTI multiple_output[5]; /* ten form maps + all forms */ ^ main.c:503:13: warning: array index 11 is past the end of the array (which contains 5 elements) [-Warray-bounds] strcat(multiple_output[11].name, postfixes[i]); ^ ~~ /Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk/usr/include/secure/_string.h:133:27: note: expanded from macro 'strcat' __builtin___strcat_chk (dest, __VA_ARGS__, __darwin_obsz (dest)) ^~~~ main.c:495:2: note: array 'multiple_output' declared here MULTI multiple_output[5]; /* ten form maps + all forms */ ^ 2 warnings generated. multires.c:23:29: warning: self-comparison always evaluates to true [-Wtautological-compare] return (result & source == source) ? 1 : 0; ^ multires.c:23:20: warning: & has lower precedence than ==; == will be evaluated first [-Wparentheses] return (result & source == source) ? 1 : 0; ^~~~~~~~~~~~~~~~~~ multires.c:23:20: note: place parentheses around the '==' expression to silence this warning return (result & source == source) ? 1 : 0; ^ ( ) multires.c:23:20: note: place parentheses around the & expression to evaluate it first return (result & source == source) ? 1 : 0; ^ ( ) 2 warnings generated.