[php-src] Issue #9645: php extension and "CFLAGS=.. -Og ..."

Issue: https://github.com/php/php-src/issues/9645 Author: aotto1968 ### Description Hi, I maintain a PHP extension and recognize after the embedding of the PHP autoconf extension a bug in the makefile: ``` > grep -- '-g\>' Makefile CFLAGS = -g g -Wall -Wcast-align -Wfatal-errors -O0 CXXFLAGS = -g g -Wall -Wcast-align -Wfatal-errors -g -O0 ``` → as you see the -g g is invalid, the question is: where it comes from ? I add some debug prints into the **configure** and end up with: ``` checking if debug is enabled... yes checking if zts is enabled... no 44 ++++++++++++++++++++ CFLAGS=-g -Og -Wall -Wcast-align -Wfatal-errors 55 ++++++++++++++++++++ CFLAGS=-g g -Wall -Wcast-align -Wfatal-errors checking for gawk... gawk checking for 'ZTS'... no ``` the problem in configure was the **SED** ... it does NOT recognize the -Og option : ``` if test "$PHP_DEBUG" = "yes"; then PHP_DEBUG=1 ZEND_DEBUG=yes echo "44 ++++++++++++++++++++ CFLAGS=$CFLAGS" CFLAGS=echo "$CFLAGS" | $SED -e 's/-O[0-9s]*//g' CXXFLAGS=echo "$CXXFLAGS" | $SED -e 's/-O[0-9s]*//g' echo "55 ++++++++++++++++++++ CFLAGS=$CFLAGS" if test "$GCC" = "yes" || test "$ICC" = "yes"; then CFLAGS="$CFLAGS -O0" CXXFLAGS="$CXXFLAGS -g -O0" fi if test "$SUNCC" = "yes"; then if test -n "$auto_cflags"; then CFLAGS="-g" CXXFLAGS="-g" else CFLAGS="$CFLAGS -g" CXXFLAGS="$CFLAGS -g" fi fi else PHP_DEBUG=0 ZEND_DEBUG=no fi ``` the source is from **configure.ac** created by **phpize** ### PHP Version PHP 8.1.10 ### Operating System openSUSE Tumbleweed