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Place all of the source code in the directory Download the source into the source code directory.If a PGP signature is available for verifying the source code against tampering, be sure to download that file too.After checking the web site for pcre, the current version of the software is at version “7.8”.Once a software application is identified, find a place in the source code directory to store the source code, any related support files and building scripts.Some example script names are: We will tend to build only the 32-bit version of software. Create an installation script iceberg$ ./INSTALL ...Usually this works, but one example that does not work is when the application links against libraries when only the 64-bit library exists and the 32-bit version of the same library does not. /bin/sh # Set the build environment set -e umask 002 PATH=/usr/local/bin:/usr/opt/bin:/usr/bin:/bin export PATH # Remove old source and extract fresh copy rm -rf pcre-7.8 tar xfz pcre-7.8gz cd pcre-7.8 # Patch and configure ./configure \ --prefix=/opt/pcre/7.8 # Build make Note: This method of extracting out a fresh copy of the source code is prone to disaster if more than once instance of the build script is running on different platforms. /usr/bin/install -c -m 644 'libpcre.pc' '/opt/pcre/7.8/lib/pkgconfig/libpcr e.pc' /usr/bin/install -c -m 644 'libpcrecpp.pc' '/opt/pcre/7.8/lib/pkgconfig/lib pcrecpp.pc' make: Leaving directory `/system/src/local/pcre-7.8/pcre-7.8' iceberg$ iceberg# cd /opt/pcre/7.8 iceberg# find .If the build script will need to build differently between Solaris and Red Hat Enterprise Linux, create two scripts, one for each platform. Po /bin/sh ./libtool --tag=CXX --mode=link g -O2 -o pcre_stringpiece_uni ttest pcre_stringpiece_unittest.o g -O2 -o .libs/pcre_stringpiece_unittest pcre_stringpiece_unittest.o ./.l ibs//usr/src/local/pcre-7.8/pcre-7.8/.libs/-Wl,--r path -Wl,/opt/pcre/7.8/lib creating pcre_stringpiece_unittest make: Leaving directory `/system/src/local/pcre-7.8/pcre-7.8' iceberg$ directory.If the build script will need to build 32-bit and 64-bit version differently, include the bit count. By installing the programs into the /opt directory, using your own non-privileged account, keeps the installation from scribbling all over the system disk in case of errors or bad code.
Create a script that will build the source code into the final program.This example will create the package for Red Hat Enterprise Linux 5.