Linux下jpeglib庫的安裝詳解
首先要下載下傳所需的庫壓縮包：jpegsrc.v6b.tar.gz或
jpegsrc.v8b.tar.gz
然後将下載下傳的壓縮包随便放在和解壓到你喜歡的地方。
# tar -zxvf jpegsrc.v6b.tar.gz
# cd jpeg-6b
# ./configure --enable-shared
# make
/以下代碼是在usr/local目錄下建立庫檔案安裝目錄
/如果沒有權限建立輸入指令sudo –s
回車，然後按提示輸入你的登入密碼
# mkdir /usr/local/jpeg6
# mkdir /usr/local/jpeg6/include
# mkdir /usr/local/jpeg6/lib
# mkdir /usr/local/jpeg6/bin
# mkdir /usr/local/jpeg6/man
# mkdir /usr/local/jpeg6/man/man1
# make install
#----configuration information----
echo
"---------------------------------------------------------------------"
echo "please add following lines in you /etc/profile"
echo "("
echo " tip:"
echo " you can add these lines in a file named
/etc/profile.jpeg,"
echo " and then add a line on the end of /etc/profile:"
echo " . /etc/profile.jpeg"
echo " it is simple,:)"
echo "):"
echo " PATH=""$""PATH:$jpeg/bin"
echo "
CPLUS_INCLUDE_PATH=""$""CPLUS_INCLUDE_PATH:$jpeg/include"
echo " LD_LIBRARY_PATH=""$""LD_LIBRARY_PATH:$jpeg/lib"
echo " LIBRARY_PATH=""$""LIBRARY_PATH:$jpeg/lib"
echo " MANPATH=""$""MANPATH:$jpeg/man"
echo ""
echo " export PATH CPLUS_INCLUDE_PATH LD_LIBRARY_PATH
LIBRARY_PATH MANPATH"
這就安裝完了嗎？？？no！！！
你可能在編譯自己寫的程式的時候會遇到一下問題終端提示
/tmp/cc9DqMJZ.o: In function `jpeg_compress':
server1214.c:(.text+0x4f5): undefined reference to
`jpeg_std_error'
server1214.c:(.text+0x519): undefined reference to
`jpeg_CreateCompress'
server1214.c:(.text+0x59b): undefined reference to
`jpeg_stdio_dest'
server1214.c:(.text+0x5d1): undefined reference to
`jpeg_set_defaults'
server1214.c:(.text+0x5ef): undefined reference to
`jpeg_set_quality'
server1214.c:(.text+0x605): undefined reference to
`jpeg_start_compress'
server1214.c:(.text+0x64c): undefined reference to
`jpeg_write_scanlines'
server1214.c:(.text+0x66a): undefined reference to
`jpeg_finish_compress'
server1214.c:(.text+0x686): undefined reference to
`jpeg_destroy_compress'
collect2: ld 傳回 1
解決辦法在編譯指令後加-ljpeg
例 gcc –o ****
****.c –ljpeg
Ok
成功！！！！