在/ usr /斌/勞工處：找不到-lstdC++

Question

嗨，我是想用化妝來編譯Debian的喘息armHF這個代碼，但它不工作它總是給我這個錯誤

我找到了lstdC++。所以，但它看起來是直接存取權限，而不是原始文件

/usr/bin/ld: cannot find -lstdc++ 
collect2: error: ld returned 1 exit status 


#include <gst/gst.h> 
#include <gst/rtsp-server/rtsp-server.h> 

int main (int argc, char *argv[]) 
{ 
    GMainLoop *loop; 
    GstRTSPServer *server; 
    GstRTSPMediaMapping *mapping; 
    GstRTSPMediaFactory *factory; 

    gst_init (&argc, &argv); 
    loop = g_main_loop_new (NULL, FALSE); 
    server = gst_rtsp_server_new(); 
    mapping = gst_rtsp_server_get_media_mapping (server); 
    factory = gst_rtsp_media_factory_new(); 
    gst_rtsp_media_factory_set_launch (factory, 
     "(mfw_v4lsrc capture-mode=0 is-live=1 ! vpuenc codec=0 ! rtpmp4vpay send-config=true name=pay0 pt=96)"); 


    gst_rtsp_media_factory_set_shared (factory, TRUE); 
    gst_rtsp_media_mapping_add_factory (mapping, "/test", factory); 
    g_object_unref (mapping); 
    gst_rtsp_server_attach (server, NULL); 
    g_main_loop_run (loop); 

    return 0; 
} 

一個與此生成的文件

CPPFLAGS += -I. -I$(top_builddir)/include -I/usr/include/gstreamer-0.10 -I/usr/include/glib-2.0 -I/usr/lib/arm-linux-gnueabihf/glib-2.0/include -I/usr/include/libxml2 -I/usr/lib/glib-2.0/include -I/usr/include/gstreamer-0.10/gst/rtsp-server/ 

OBJ = rtsptest.o 

%.o: %.c $(DEPS) 
    $(CC) -c -o $@ $< $(CPPFLAGS) 

rtsptest: $(OBJ) 
    $(CC) -o $@ $^ $(LDFLAGS) $(CPPFLAGS) -pthread -lstdc++ -lgstreamer-0.10 -lgstrtsp-0.10 -lgstrtspserver-0.10 -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lrt -lxml2 -lglib-2.0 -lm 

clean: 
    rm *.o 
    rm test 

Answer 1

正在編譯C++與gcc（$(CC)）代碼。這確實使用C++編譯器，因爲它能夠確定您正在從文件擴展名中編譯C++代碼。但是gcc確實不會自動引用C++標準庫。要訪問C++標準庫，請使用g++編譯您的代碼。