To build OpenCV as static library you need to set BUILD_SHARED_LIBS flag to false/off: cmake -DBUILD_SHARED_LIBS=OFF .. But I think it is not enough for your task because you actually need to cross-compile library for you architecture. In case of Android or IOS such port already exists and you can simply use it. In case … Read more
What am I doing wrong? Nothing. It sounds like your GCC is configured to build -pie binaries by default. These binaries really are shared libraries (of type ET_DYN), except they run just like a normal executable would. So your should just run your binary, and (if it works) not worry about it. Or you could … Read more
you can use libtool to do it libtool -static -o new.a old1.a old2.a
Given the most simple working example I can think of: 2 classes, a and b, where a depends on b . . a.h #ifndef A_H #define A_H class aclass { public: int method(int x, int y); }; #endif a.cpp #include “a.h” #include “b.h” int aclass::method(int x, int y) { bclass b; return x * b.method(x,y); … Read more
In order to link to an archive library (sometimes also called static library), just add it to the link line: gcc main.o … -lfoo … The linker will search for libfoo.dylib, and then libfoo.a, which is all you need. If you have both versions of the library, and want to link with an archive version … Read more
Simply pass -Wl,–exclude-libs,ALL to gcc This will tell the linker to transform all the symbols in the static libraries to hidden. –exclude-libs also accepts a list of archives (i.e. static library names) for finer granularity on which libraries to hide symbols from. Note: this will only work in systems using GNU binutils (e.g. Linux) or … Read more
.a is an “archive”. Although an archive can contain any type of file, in the context of the GNU toolchain, it is a library of object files (other toolchains especially on Windows use .lib for the same purpose, but the format of these is not typically a general purpose archive, and often specific to the … Read more
On gcc, use ar -t. -t option of the gnu archiver (ar) writes a table of contents of archive to the standard output. Only the files specified by the file operands shall be included in the written list. If no file operands are specified, all files in archive shall be included in the order of … Read more
Does this (with appropriate -L’s of course) gcc -shared -o megalib.so foo.o bar.o -la_static_lib -lb_static_lib Not do it?
There are legitimate uses of –whole-archive when linking executable with static libraries. One example is building C++ code, where global instances “register” themselves in their constructors (warning: untested code): handlers.h typedef void (*handler)(const char *data); void register_handler(const char *protocol, handler h); handler get_handler(const char *protocol); handlers.cc (part of libhandlers.a) typedef map<const char*, handler> HandlerMap; HandlerMap … Read more