How to compile libiconv Library Based on Android ndk in Linux

Libiconv is an open-source library that provides transcoding functions across platforms. It provides a conversion function: iconv () to implement conversion between different encodings, the libxml2 library compilation on the Android platform requires the libiconv library. Therefore, the libiconv library must be compiled to compile libxml2 Based on Android ndk. Therefore, the libiconv library is compiled and analyzed, the operation is successful and recorded accordingly. For details about how to build the compiling environment of the android ndk platform, refer to other blog posts I wrote. The following describes how to compile the android ndk environment of the libiconv library. If reprinted please keep this Article Source: http://www.shanzhashu.info/archives/220.html

First, download the latest libiconv Library: composer from the official website. First, configure the libiconv library in the Linux environment, that is, execute Configure on the libiconv library to produce the config in the Linux environment. h file, because the config. h defines macros on many Linux platforms. Installation Method: First, $. /configure, then $ make, and then build android. put the MK file in the JNI directory.
Android. mk file content:

LOCAL_PATH:= $(call my-dir)#libiconv.soinclude $(CLEAR_VARS)LOCAL_MODULE := libiconvLOCAL_CFLAGS := \  -Wno-multichar \  -DANDROID \  -DLIBDIR="c" \  -DBUILDING_LIBICONV \  -DIN_LIBRARYLOCAL_SRC_FILES := \libcharset/lib/localcharset.c \lib/iconv.c \lib/relocatable.cLOCAL_C_INCLUDES += \  $(LOCAL_PATH)/include \  $(LOCAL_PATH)/libcharset \  $(LOCAL_PATH)/lib \  $(LOCAL_PATH)/libcharset/include \  $(LOCAL_PATH)/srclib  include $(BUILD_SHARED_LIBRARY)#testinclude $(CLEAR_VARS)LOCAL_MODULE :=genutf8LOCAL_SRC_FILES := tests/genutf8.cLOCAL_C_INCLUDES += \  $(LOCAL_PATH)/include \  $(LOCAL_PATH)/libcharset \  $(LOCAL_PATH)/lib \  $(LOCAL_PATH)/libcharset/include \  $(LOCAL_PATH)/srclibLOCAL_SHARED_LIBRARIES := libiconvinclude $(BUILD_EXECUTABLE)

 

Run $ ndk-build

1. Compile prompt:

Libiconv-1.14/JNI/libcharset/lib/localcharset. C: 51: 24: Error: langinfo. h: no such file or directory

Solution:

Modify the macro definition of libcharset/config. h In the directory file to disable the macro definition:

/* Define if you haveand nl_langinfo (codeset ).*/

# Define have_langinfo_codeset 0

2. error message:

"C undeclaired" error reported

Solution:

Modify the get_charset_aliases (void) function in the file/libcharset/lib/localcharset. C)

Search: int C;

Put the variable definition at the beginning of the function.

Run $ ndk-build to compile libiconv. so successfully.

To the libs/armeabi-v7a directory you can find.

If you run the program, you need to package it into the Android platform.

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