无法链接Portaudio Library [英] Fail to Link Portaudio Library

问题描述

我已经使用Portaudio库制作了一个简单的Makefile项目，该项目已经在以下Makefile中正常工作：

  CXXFLAGS = -O2 -g -Wall -fmessage-length = 0 
 OBJS = RecAudio.o 
 LIBS = ../Portaudio/portaudio/lib/.libs/libportaudio.a -lpthread -lrt -lasound 
 #LIBS = -lportaudio -lpthread -lrt -lasound 
 TARGET = RecAudio 
 $（TARGET）：$（OBJS）
 $（CXX）-o $（TARGET）$ OBJS）$（LIBS）
 all：$（TARGET）
 clean：
 rm -f $（OBJS）$（TARGET）
  pre> 
 
 
我将尝试将Portaudio库集成到使用Automake工具创建的另一个项目中。我以这种方式在Makefile.am文件中添加了库：
  METASOURCES = AUTO 
 lib_LTLIBRARIES = libsounddevice.la 
 libsounddevice_la_SOURCES = AudioCapturePluginCommon.cpp SoundDevice.cpp SoundDeviceConfig.cpp 
 libsounddevice_la_LDFLAGS = -module 
 AM_CPPFLAGS = -D_REENTRANT 
 libsounddevice_la_LIBADD = portaudio / portaudio / lib / .libs / libportaudio.a -lACE  - lxerces-c -llog4cxx -lorkbase -lpcap -lpthread -lrt -lasound 
 INCLUDES = -I @ top_srcdir @ -I ../../../ orkbasecxx -I ../ common 
 AudioCapturePluginCommon。 cpp：
 ln -s ../common/AudioCapturePluginCommon.cpp AudioCapturePluginCommon.cpp 
  
但我获得了以下错误：
  sr / bin / ld：portaudio / portaudio / lib / .libs / libportaudio.a .o）：在创建共享对象时不能使用针对`.rodata.str1.8'的重定位R_X86_64_32;重新编译-fPIC 
 portaudio / portaudio / lib / .libs / libportaudio.a：无法读取符号：错误值
  
 
 
解决方案
不要使用静态库来链接-shared。
 
 
 
使用共享的-lportaudio
 
 
 
另请参阅为什么在64位而不是32位平台上绝对需要fPIC？ 
 
I have made a simple Makefile project using Portaudio libraries and the project has been working fine with the following Makefile:
CXXFLAGS =  -O2 -g -Wall -fmessage-length=0
OBJS =      RecAudio.o
LIBS = ../Portaudio/portaudio/lib/.libs/libportaudio.a -lpthread -lrt -lasound
#LIBS = -lportaudio -lpthread -lrt -lasound
TARGET =    RecAudio
$(TARGET):  $(OBJS)
    $(CXX) -o $(TARGET) $(OBJS) $(LIBS)
all:    $(TARGET)
clean:
    rm -f $(OBJS) $(TARGET)
I'll try to integrate Portaudio libraries into another project created with Automake tools. I added library in Makefile.am file in this way:
METASOURCES = AUTO
lib_LTLIBRARIES = libsounddevice.la
libsounddevice_la_SOURCES = AudioCapturePluginCommon.cpp SoundDevice.cpp SoundDeviceConfig.cpp
libsounddevice_la_LDFLAGS = -module
AM_CPPFLAGS = -D_REENTRANT
libsounddevice_la_LIBADD = portaudio/portaudio/lib/.libs/libportaudio.a -lACE -lxerces-c -llog4cxx -lorkbase -lpcap -lpthread -lrt -lasound
INCLUDES = -I@top_srcdir@ -I../../../orkbasecxx -I../common
AudioCapturePluginCommon.cpp:
    ln -s ../common/AudioCapturePluginCommon.cpp AudioCapturePluginCommon.cpp
but I obtained the following error: 
sr/bin/ld: portaudio/portaudio/lib/.libs/libportaudio.a(pa_front.o): relocation R_X86_64_32 against `.rodata.str1.8' can not be used when making a shared object; recompile with -fPIC
portaudio/portaudio/lib/.libs/libportaudio.a: could not read symbols: Bad value

解决方案
Don't link with "-shared" against a static library.

Use the shared one "-lportaudio"

See also Why is fPIC absolutely necessary on 64 and not on 32bit platforms?

                        
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