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gcc make error codes Visalia, California

imagine the following (stupid) Makefile: all: @false echo "hello" This would fail (without printing "hello") with the above message since false terminates with exit status 1. You need to look at the messages generated before this one to find out why the command you invoked did not work. This option is independent of the standards mode. In each of your examples, ./dpp cannot be executed.

Some users try to use -Wpedantic to check programs for strict ISO C conformance. How? At this level, numeric arguments to format directives with unknown values are assumed to have the value of one, and strings of unknown length to be empty. Karger's Algorithm question Why does argv include the program name?

Compute the kangaroo sequence more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts This warning is enabled by default. -WmainWarn if the type of main is suspicious. An example of this is a missing header file - the compiler says something like "no such file" but not "error: no such file", then it exits with non-zero exit code However, it has many false positives.

share|improve this answer answered Apr 16 '14 at 18:39 frlan 742215 I did that but it didn't help much. Eight spaces do not count. Instead of the these attributes, it is also possible to add a "falls through" comment to silence the warning. Warnings about conversions between signed and unsigned integers can be disabled by using -Wno-sign-conversion.

This warning is enabled by -Wall. -Warray-bounds=1This is the warning level of -Warray-bounds and is enabled by -Wall; higher levels are not, and must be explicitly requested. -Warray-bounds=2This warning level also This warning is more effective with link time optimization, where the information about the class hierarchy graph is more complete. -Wsuggest-final-methodsWarn about virtual methods where code quality would be improved if However, the standards committee have ruled that function calls do not overlap. This option is independent of the standards mode.

More importantly after using the 4.4 command above I still get the 127 error. if (i > i) { ... } This warning is enabled by -Wall. -WtrampolinesWarn about trampolines generated for pointers to nested functions. If a program breaks these rules, the results on any particular implementation are entirely unpredictable. To suppress this warning use the unused attribute (see Variable Attributes). -Wno-unused-resultDo not warn if a caller of a function marked with attribute warn_unused_result (see Function Attributes) does not use its

For example, the placement new expression below is diagnosed because it attempts to construct an array of 64 integers in a buffer only 64 bytes large. This warning is also enabled by -Wextra. -Wenum-compareWarn about a comparison between values of different enumerated types. Modulo % with big number- Infinity error - Javascript Animal Shelter in Java What happens if one brings more than 10,000 USD with them in the US? Additionally, check if you have specified the path correctly.

This warning is enabled by -Wall or -Wextra. -Wunknown-pragmasWarn when a #pragma directive is encountered that is not understood by GCC. Can cats leave scratch marks on cars? Setting up libstdc++6-4.4-dev (4.4.7-1ubuntu2) ... For instance, warn about use of variable length arrays, long long type, bool type, compound literals, designated initializers, and so on.

To eliminate the warning, add explicit braces around the innermost if statement so there is no way the else can belong to the enclosing if. GNU make looks for various separators (:, =, recipe prefix characters, etc.) to indicate what kind of line it’s parsing. share|improve this answer answered Apr 25 '15 at 15:27 Kamil Kuczaj 12 add a comment| up vote 0 down vote You may have to install the build-essentials by executing sudo apt-get struct S { int n, a[1]; }; S *s = (S *)malloc (sizeof *s + 31 * sizeof s->a[0]); new (s->a)int [32](); -Wplacement-new=2At this level, in addition to diagnosing all the

Since -Wformat also checks for null format arguments for several functions, -Wformat also implies -Wnonnull. hexadecimal or octal values, which typically represent bit patterns, are not warned about. For example, warn if a call to a function returning an integer type is cast to a pointer type. -Wc90-c99-compat (C and Objective-C only)Warn about features not present in ISO C90, While the previous example would be diagnosed, the following construct makes use of the flexible member array extension to avoid the warning at level 2.

This analysis requires option -fipa-pure-const, which is enabled by default at -O and higher. No further recipes will be executed for these targets, since their preconditions have not been achieved. The following language-independent options do not enable specific warnings but control the kinds of diagnostics produced by GCC. -fsyntax-onlyCheck the code for syntax errors, but don't do anything beyond that. -fmax-errors=nLimits by sudo apt-get install g++ Not sure whether you really need a particular version.

This could happen, for example, if you set the MAKE environment variable to ‘make -j2’. Please take a look at my updated question details –user21839 Apr 16 '14 at 19:08 add a comment| up vote 0 down vote It's not about the g++. This warning is enabled by -Wall. share|improve this answer edited Apr 4 '11 at 8:05 answered Apr 4 '11 at 7:38 fnokke 762412 Thank you for your reply.

Where the standard specified with -std represents a GNU extended dialect of C, such as ‘gnu90’ or ‘gnu99’, there is a corresponding base standard, the version of ISO C on which Often programmers expect it to be a value computed inside the conditional expression instead. For example: switch ((int) (a == 4)) { ... } This warning is enabled by default for C and C++ programs. -Wswitch-unreachableWarn whenever a switch statement contains statements between the controlling For example: switch (cond) { case 1: a = 1; break; case 2: a = 2; case 3: a = 3; break; } This warning does not warn when the last

This includes standard functions, and others specified by format attributes (see Function Attributes), in the printf, scanf, strftime and strfmon (an X/Open extension, not in the C standard) families (or other The maximum length of string arguments can be bounded by specifying the precision in the format directive. Animal Shelter in Java Why is water evaporated from the ocean not salty? Specifically, a warning is issued for if, else, while, and for clauses with a guarded statement that does not use braces, followed by an unguarded statement with the same indentation.