I'm trying to compile a code with gcc -g -Wall -Wextra -DNDEBUG -pedantic -ansi flags and to use libev library. I am getting the following errors in eclipse:
Description Resource Path Location Type
expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’ Project line 827, external location: /usr/include/ev.h C/C++ Problem
expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’ Project line 820, external location: /usr/include/ev.h C/C++ Problem
expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’ Project line 821, external location: /usr/include/ev.h C/C++ Problem
make: *** [src/Object/MySockets/MySockets.o] Error 1 Project C/C++ Problem
expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘struct’ Project line 551, external location: /usr/include/ev.h C/C++ Problem
expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘int’ Project line 559, external location: /usr/include/ev.h C/C++ Problem
expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘unsigned’ Project line 825, external location: /usr/include/ev.h C/C++ Problem
expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘unsigned’ Project line 826, external location: /usr/include/ev.h C/C++ Problem
expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’ Project line 822, external location: /usr/include/ev.h C/C++ Problem
expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘void’ Project line 823, external location: /usr/include/ev.h C/C++ Problem
I've installed the libev-dev package in ubuntu.
Your -ansi flag causes the compiler to only accept C89 code, and will only enable C89 features in the standard header files (of glibc/gcc).
libev isn't designed to be compiled by a strict c89 compiler, it needs at least a posix (or possibly win32) system - and likely it uses a few c99 features as well.