In your Moodle there is Admin Menu -> Server -> PHP info.
In older versions of php at the very top, there used to be a box that showed how PHP was built/compiled. Is that box present on your system? Probably isn't.
But, with php -i at the very top of that output, is there a section entitled: Configure Command =>
Here's what it looks like on a stock Mac ...
Configure Command => '/Library/Caches/com.apple.xbs/Binaries/apache_mod_php/install/TempContent/Objects/php/configure' '--prefix=/usr' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--disable-dependency-tracking' '--sysconfdir=/private/etc' '--with-libdir=lib' '--enable-cli' '--with-iconv=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--with-config-file-path=/etc' '--with-libxml-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--with-openssl=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr/local/libressl' '--with-kerberos=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--with-zlib=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--enable-bcmath' '--with-bz2=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--enable-calendar' '--disable-cgi' '--with-curl=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--enable-dba' '--with-ndbm=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--enable-exif' '--enable-fpm' '--enable-ftp' '--with-gd' '--with-png-dir=/Library/Caches/com.apple.xbs/Binaries/apache_mod_php/install/TempContent/Root/usr/local' '--with-jpeg-dir=/Library/Caches/com.apple.xbs/Binaries/apache_mod_php/install/TempContent/Root/usr/local' '--enable-gd-native-ttf' '--with-icu-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--with-ldap=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--with-ldap-sasl=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--with-libedit=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--enable-mbstring' '--enable-mbregex' '--with-mysqli=mysqlnd' '--with-pcre-regex=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--without-pcre-jit' '--with-pdo-pgsql=/Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.14.xctoolchain/usr/local/bin' '--with-pgsql=/Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.14.xctoolchain/local/bin' '--without-pear' '--with-pear=no' '--with-pdo-mysql=mysqlnd' '--with-mysql-sock=/var/mysql/mysql.sock' '--disable-phpdbg' '--with-readline=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--enable-shmop' '--with-snmp=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--enable-soap' '--enable-sockets' '--enable-sysvmsg' '--enable-sysvsem' '--enable-sysvshm' '--with-tidy=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--enable-wddx' '--with-xmlrpc' '--with-iconv-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--with-xsl=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.14.Internal.sdk/usr' '--with-apxs2=/Applications/Xcode.app/Contents/Developer/Toolchains/OSX10.14.xctoolchain/usr/local/bin/apxs' '--enable-zip' 'YACC=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/bison'
Can re-call doing what you say you've done ... compiled ... and having 'great fun' (yeah, right!) with how to install something I left out ... supports wise ... If you noticed above ... --with-xsl ... the very thing you are trying to get running on your server.
In addition, today ... one needs more than the compilers gcc, gcc+ etc. but libraries and headers as well as other apps and those have hooks into apache.
Yep ... by far much easier to use a repo and yum.
'spirit of sharing', Ken
