Android交叉编译libiconv

最新推荐文章于 2022-12-19 16:29:39 发布

原创最新推荐文章于 2022-12-19 16:29:39 发布 · 1k 阅读

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本文介绍如何解决libiconv在Android NDK中编译的问题，包括下载源码、配置编译参数、修改编译脚本等步骤，并提供了解决过程中遇到的具体错误及其解决方案。

#!/bin/sh

ANDROID_HOME=Android/prebuilt/ndk/android-ndk-r7

./configureCPPFLAGS="-I$ANDROID_HOME/platforms/android-6/arch-arm/usr/include/"CFLAGS="-nostdlib" LDFLAGS="-Wl,-rpath-link=$ANDROID_HOME/platforms/android-6/arch-arm/usr/lib/-L$ANDROID_HOME/platforms/android-6/arch-arm/usr/lib/" LIBS="-lc -ldl-nostdlib -lc" --host=arm-androideabi-linux --enable-static

按照上面，编译过不去，只好照下面方法：

libiconv在NDK中未开放，因此在代码中无法直接引用iconv.h头文件，会报错no such file ordirectory。这时需要将libiconv的源码利用NDK重新交叉编译。

1.下载libiconv的源码：https://github.com/pierrezurek/iconv

2.在源码的根目录下./configure，这样才能生成iconv.h和config.h

3.在android.mk文件中添加

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)
LOCAL_MODULE := iconv
LOCAL_CFLAGS := \
  -Wno-multichar \
  -D_ANDROID \
  -DLIBDIR="c" \
  -DBUILDING_LIBICONV \
  -DIN_LIBRARY

LOCAL_C_INCLUDES := \
$(LOCAL_PATH)/libiconv-1.13.1 \
  $(LOCAL_PATH)/libiconv-1.13.1/include \
  $(LOCAL_PATH)/libiconv-1.13.1/lib \
  $(LOCAL_PATH)/libiconv-1.13.1/libcharset/include

LOCAL_SRC_FILES := \
  libiconv-1.13.1/libcharset/lib/localcharset.c \
  libiconv-1.13.1/lib/iconv.c \
  libiconv-1.13.1/lib/relocatable.c
include $(BUILD_STATIC_LIBRARY)