When installing Apache on Ubuntu 11.10, I get the following error:
configure: error: APR not found. Please read the documentation.
I followed the instructions here, then, I get the error below:
configure: error: pcre-config for libpcre not found. PCRE is required and available from http://pcre.org/
What am I doing wrong and how can I resolve it?
1. Download PCRE from PCRE.org
2. Compile it with a prefix and install it:
./configure --prefix=/usr/local/pcre
make
make install
3. Go back to where your Apache installation is and compile Apache with PCRE:
--with-pcre=/usr/local/pcre
For me (Fedora Linux), it was enough to just install the pcre-devel: yum install -y pcre-devel. Didn't even have to use --with-pcre afterwards.
I was other problem compiling apache2 in CentOS with pcre. I installed pcre in other location "/custom/location/pcre" and configure command throw the following error
configure: error: Did not find pcre-config script at "/custom/location/pcre"
to solve it changing the flag --with-pcre=/custom/location/pcre to --with-pcre=/custom/location/pcre/bin/pcre2-config
In a clean installation of Debian 9.5, during the installation of Apache it is necessary to have some packages and libraries to avoid errors. Next I show the type of error and its respective solution
Configuration
configure: error: no acceptable C compiler found in $PATH
$ sudo apt-get install build-essential
configure: error: pcre-config for libpcre not found. PCRE is required and available from http://pcre.org/
$ sudo apt-get install libpcre3-dev
Then I make the configuration indicating that it is installed in the path /usr/local and not in /usr/local/apache2, otherwise I will have library errors. The idea is that the libraries created for httpd end in /usr/local/lib so that the dynamic linker knows them.
$ configure --prefix /usr/local
Compilation
And for the compilation the following the installation of some packages also would avoid us errors in a clean installation of Debian.
xml/apr_xml.c:35:19: fatal error: expat.h: No such file or directory.
$ sudo apt-get install libexpat1-dev.
It is recommended to use the -j3 parameter to make the compilation faster. Although it could also be ignored.
$ make -j3
In RHEL 3 is not necessary setting parameter --with-pcre pointing to pcre-config. Only need pcre path
My configure command:
./configure --prefix=/usr/local/apache2 --with-pcre=/usr/local/pcre
This worked for me
./configure --prefix /u01/apache --with-included-apr --with-pcre=/usr/local/pcre/bin/pcre2-config
BTW, on CentOS 7.6 before building httpd, please install pcre-devel
`$ sudo yum install pcre-devel`
