cflags

I want to pass a variable test that I set differently per flavor as a define to the NDK. But for some reason he always passes the value of the last flavor. Here is the build.gradle: apply plugin: 'com.android.library' def test android { compileSdkVersion 23 buildToolsVersion "23.0.2" defaultPublishConfig "flavorARelease" publishNonDefault true defaultConfig { minSdkVersion 15 targetSdkVersion 17 ndk { moduleName "test" ldLibs "log" } } productFlavors { flavorA { test = 1 } flavorB { test = 2 } } buildTypes { debug { ndk { if (cFlags == null) { cFlags = "" } cFlags = cFlags + " -DLOGGING=1

I am trying to compile openssl but encountering an error. The CFLAGS in use are: -O2 -fPIC -fno-strict-overflow Can someone explain to me please what is .rodata and what the following sentence means? /usr/bin/ld: libcrypto.a(wp_block.o): relocation R_X86_64_32S against `.rodata' can not be used when making a shared object; recompile with -fPIC libcrypto.a(wp_block.o): error adding symbols: Bad value I am unsure what is libcrypto.a but apparently it is part of openssl. How could this possibly be fixed? /usr/bin/ld: libcrypto.a(wp_block.o): relocation R_X86_64_32S against `.rodata' can not be

I understand that CFLAGS (or CXXFLAGS for C++) are for the compiler, whereas CPPFLAGS is used by the preprocessor. But I still don't understand the difference. I need to specify an include path for a header file that is included with #include -- because #include is a preprocessor directive, is the preprocessor (CPPFLAGS) the only thing I care about? Under what circumstances do I need to give the compiler an extra include path? In general, if the preprocessor finds and includes needed header files, why does it ever need to be told about extra include directories? What use is CFLAGS at all? (In

I just want to debug some code running on Linux and I need a debug build ( -O0 -ggdb ). So I added these things to my CMakeLists.txt : set(CMAKE_BUILD_TYPE DEBUG) set(CMAKE_C_FLAGS "-O0 -ggdb") set(CMAKE_C_FLAGS_DEBUG "-O0 -ggdb") set(CMAKE_C_FLAGS_RELEASE "-O0 -ggdb") set(CMAKE_CXX_FLAGS "-O0 -ggdb") set(CMAKE_CXX_FLAGS_DEBUG "-O0 -ggdb") set(CMAKE_CXX_FLAGS_RELEASE "-O0 -ggdb") When I tried to compile I turned verbose on using make VERBOSE=1 And I observed the output, like this ... /usr/bin/c++ -D_BSD_SOURCE **-O0 -ggdb** -Wnon-virtual-dtor -Wno-long-long -ansi -Wundef -Wcast-align -Wchar