编译安装 （PHP-5.6.23）
1.进入PHP源码包目录下的ext/bcmath目录。
[root@192 bcmath]# ls bcmath.c config.m4 config.w32 CREDITS libbcmath package.xml php_bcmath.h tests
2.执行phpize命令，phpize命令在PHP安装目录的bin目录下，如/usr/local/php/bin/phpize。
[root@192 bcmath]# /usr/local/php/bin/phpize Configuring for: PHP Api Version: 20131106 Zend Module Api No: 20131226 Zend Extension Api No: 220131226
3.执行./configure --with-php-config=https://www.jb51.net/usr/local/php/bin/php-config。要依据php-config的实际路径。
[root@192 bcmath]# ./configure --with-php-config=https://www.jb51.net/usr/local/php/bin/php-config checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking for a sed that does not truncate output... /usr/bin/sed checking for cc... cc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether cc accepts -g... yes checking for cc option to accept ISO C89... none needed checking how to run the C preprocessor... cc -E checking for icc... no checking for suncc... no checking whether cc understands -c and -o together... yes checking for system library directory... lib checking if compiler supports -R... no checking if compiler supports -Wl,-rpath,... yes checking build system type... x86_64-unknown-linux-gnu checking host system type... x86_64-unknown-linux-gnu checking target system type... x86_64-unknown-linux-gnu checking for PHP prefix... /usr/local/php checking for PHP includes... -I/usr/local/php/include/php -I/usr/local/php/include/php/main -I/usr/local/php/include/php/TSRM -I/usr/local/php/include/php/Zend -I/usr/local/php/include/php/ext -I/usr/local/php/include/php/ext/date/lib checking for PHP extension directory... /usr/local/php/lib/php/extensions/no-debug-non-zts-20131226 checking for PHP installed headers prefix... /usr/local/php/include/php checking if debug is enabled... no checking if zts is enabled... no checking for re2c... no configure: WARNING: You will need re2c 0.13.4 or later if you want to regenerate PHP parsers. checking for gawk... gawk checking whether to enable bc style precision math functions... yes, shared checking for ld used by cc... /usr/bin/ld checking if the linker (/usr/bin/ld) is GNU ld... yes checking for /usr/bin/ld option to reload object files... -r checking for BSD-compatible nm... /usr/bin/nm -B checking whether ln -s works... yes checking how to recognize dependent libraries... pass_all checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking dlfcn.h usability... yes checking dlfcn.h presence... yes checking for dlfcn.h... yes checking the maximum length of command line arguments... 1572864 checking command to parse /usr/bin/nm -B output from cc object... ok checking for objdir... .libs checking for ar... ar checking for ranlib... ranlib checking for strip... strip checking if cc supports -fno-rtti -fno-exceptions... no checking for cc option to produce PIC... -fPIC checking if cc PIC flag -fPIC works... yes checking if cc static flag -static works... no checking if cc supports -c -o file.o... yes checking whether the cc linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes checking whether -lc should be explicitly linked in... no checking dynamic linker characteristics... GNU/Linux ld.so checking how to hardcode library paths into programs... immediate checking whether stripping libraries is possible... yes checking if libtool supports shared libraries... yes checking whether to build shared libraries... yes checking whether to build static libraries... no creating libtool appending configuration tag "CXX" to libtool configure: creating ./config.status config.status: creating config.h
4.执行make && make install。
[root@192 bcmath]# make && make install /bin/sh /home/tools/phptools/php-5.6.23/ext/bcmath/libtool --mode=compile cc -I/home/tools/phptools/php-5.6.23/ext/bcmath/libbcmath/src -I. -I/home/tools/phptools/php-5.6.23/ext/bcmath -DPHP_ATOM_INC -I/home/tools/phptools/php-5.6.23/ext/bcmath/include -I/home/tools/phptools/php-5.6.23/ext/bcmath/main -I/home/tools/phptools/php-5.6.23/ext/bcmath -I/usr/local/php/include/php -I/usr/local/php/include/php/main -I/usr/local/php/include/php/TSRM -I/usr/local/php/include/php/Zend -I/usr/local/php/include/php/ext -I/usr/local/php/include/php/ext/date/lib -DHAVE_CONFIG_H -g -O2 -c /home/tools/phptools/php-5.6.23/ext/bcmath/bcmath.c -o bcmath.lo mkdir .libs cc -I/home/tools/phptools/php-5.6.23/ext/bcmath/libbcmath/src -I. -I/home/tools/phptools/php-5.6.23/ext/bcmath -DPHP_ATOM_INC -I/home/tools/phptools/php-5.6.23/ext/bcmath/include -I/home/tools/phptools/php-5.6.23/ext/bcmath/main -I/home/tools/phptools/php-5.6.23/ext/bcmath -I/usr/local/php/include/php -I/usr/local/php/include/php/main -I/usr/local/php/include/php/TSRM -I/usr/local/php/include/php/Zend -I/usr/local/php/include/php/ext -I/usr/local/php/include/php/ext/date/lib -DHAVE_CONFIG_H -g -O2 -c /home/tools/phptools/php-5.6.23/ext/bcmath/bcmath.c -fPIC -DPIC -o .libs/bcmath.o ... ... ---------------------------------------------------------------------- Libraries have been installed in: /home/tools/phptools/php-5.6.23/ext/bcmath/modules If you ever happen to want to link against installed libraries in a given directory, LIBDIR, you must either use libtool, and specify the full pathname of the library, or use the `-LLIBDIR' flag during linking and do at least one of the following: - add LIBDIR to the `LD_LIBRARY_PATH' environment variable during execution - add LIBDIR to the `LD_RUN_PATH' environment variable during linking - use the `-Wl,--rpath -Wl,LIBDIR' linker flag - have your system administrator add LIBDIR to `/etc/ld.so.conf' See any operating system documentation about shared libraries for more information, such as the ld(1) and ld.so(8) manual pages. ---------------------------------------------------------------------- Build complete. Don't forget to run 'make test'. Installing shared extensions: /usr/local/php/lib/php/extensions/no-debug-non-zts-20131226/
5.查询，php.ini中extension_dir配置的目录中已经有bcmath.so文件了。
[root@192 sbin]# ll /usr/local/php/lib/php/extensions/no-debug-non-zts-20131226/ 总用量 3984 -rwxr-xr-x. 1 root root 382568 10月 22 17:57 bcmath.so
6.在Dynamic Extensions配置块下添加一行extension=bcmath.so。
7.重启php服务即可。
总结