mingw32

I've just updated MinGW using mingw-get-setup and i'm unable to build anyting that contains <cmath> header if I use anything larger than -O0 with -std=c++1y . (I also tried c++11 and c++98 ) I'm getting errors like this one: g++.exe -pedantic-errors -pedantic -Wextra -Wall -std=c++1y -O3 -c Z:\Projects\C++\L6\src\events.cpp -o obj\src\events.o In file included from z:\lander\mingw\lib\gcc\mingw32\4.8.1\include\c++\cmath:44:0, from Z:\Projects\C++\L6\src\utils.h:4, from Z:\Projects\C++\L6\src\events.cpp:10: z:\lander\mingw\include\math.h: In function 'float hypotf(float, float)': z:\lander

I recently installed CodeBlocks with mingw32 on Windows 7 Ultimate 32bit in order to dust off my c skills, but this problem has me somewhat stumped. I decided to fire off a short Fibonacci generator to make sure my setup was working, but I ran into a hurdle. The program compiles, links and whatnot like a charm and I get a corresponding executable which runs as expected. The problems occur if I try to compile again, then I get the following: c:/codeblocks/mingw/bin/../lib/gcc/mingw32/4.4.1/../../../../mingw32/bin/ld.exe: cannot open output file bin\Debug\Fibonacci.exe: Permission denied I can't

I need to pass /DEF:c:\filepath\myLib.def" command line option from a bash script to MS compiler/linker. The path is generated as part of build process by a bash script. Basically, the argument that my script passes is: -DEF:/c/filepath/myLib.def MSYS path conversion can't handle it properly because it doesn't understand /DEF: part. It works if I do -DEF=/c/filepath/myLib.def but then ms tools don't understand this parameter. In short, what's the proper way to write that parameter in MSYS bash so that it converts it to proper argument? On cygwin I could use cygpath, but there is no equivalent,

I have recently installed (the latest builds of) 'Eclipse IDE for C/C++ Developers' and minGW (4.8.1) to help me to get back into C++ after a long time away. I have added -std=c++11 to Other flags at C/C++ Build/Settings/Tool Settings/GCC C++ Compiler/Miscellaneous I have a small program utilizing a number of C++11 features (e.g. using the chrono library, .emplace_back ). After Run I get multiple unresolved issues in the Problems window, as Pasted below). Interestingly, the program does compile and run ok. With this, is there something I'm not setting up in Eclipse to resolve these issues?

I am learning to use getline in C programming and tried the codes from http://crasseux.com/books/ctutorial/getline.html #include <stdio.h> #include <stdlib.h> #include <string.h> int main(int atgc, char *argv[]) { int bytes_read = 1; int nbytes = 10; char *my_string; my_string = (char *)malloc(nbytes+1); puts("Please enter a line of text"); bytes_read = getline(&my_string, &nbytes, stdin); if (bytes_read == -1) { puts ("ERROR!"); } else { puts ("You typed:"); puts (my_string); } return 0; } However, the problem is that the compiler keeps returning errors of this: undefined reference to