Bug 79867

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 As noted in
 
 http://www.freebsd.org/cgi/query-pr.cgi?pr=3D76331
 
 The problem is that PHP outputs "Content-Encoding: gzip" header only if
 zlib is enabled at compile time. Which is not the case with the FreeBSD
 port - zlib support is installed as separate port(s): archivers/php[45]-zli=
 b.
 
 So zlib.output_compression=3DOn is unusable because of the missing
 header.
 
 So we have the following 2 choises:
 1. Enable zlib in php at compile time and remove archivers/php[45]-zlib
 ports (poor).
 2. Change PHP source to output the headers mentioned even if zlib is not
 enabled at compile time.
 
 Fortunately the second is very easy to achieve due to the well-written
 PHP code. As seen in the included patch just "#if HAVE_ZLIB" must be
 removed from SAPI.c. What happens is that
 
 zend_ini_long("zlib.output_compression", sizeof("zlib.output_compression"),=
  0)
 
 is always false when zlib is not loaded even if zlib.output_compression
 is turned on in php.ini and so - no extra headers or errors appear when
 zlib.output_compression=3DOn and no zlib.so extension is loaded.
 
 E.g. #if HAVE_ZLIB is not needed at all in the places where it is
 removed in the included patch. Probably this should be emailed to the
 PHP developers for review and inclusion in the next releases.
 
 The same patch can be appiled and is valid for PHP4 and PHP5.
 
 
 --- SAPI.c.orig	Wed Apr 13 17:06:11 2005
 +++ SAPI.c	Wed Apr 13 17:43:58 2005
 @@ -565,11 +565,18 @@
  					ptr++;
  					len--;
  				}
 +/*
 + * Will not hurt in any way if we do not have zlib installed.
 + * This code is allowed to make it possible to use zlib as a
 + * runtime extension (HAVE_ZLIB not defined at compile time).
  #if HAVE_ZLIB
 +*/
  				if(!strncmp(ptr, "image/", sizeof("image/")-1)) {
  					zend_alter_ini_entry("zlib.output_compression", sizeof("zlib.output_c=
 ompression"), "0", sizeof("0") - 1, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
  				}
 +/*
  #endif
 +*/
  				mimetype =3D estrdup(ptr);
  				newlen =3D sapi_apply_default_charset(&mimetype, len TSRMLS_CC);
  				if (!SG(sapi_headers).mimetype){
 @@ -712,7 +719,12 @@
  		return SUCCESS;
  	}
 =20
 +/*
 + * Output zlib related headers even if zlib is not enabled at compile time.
 + * This code is allowed to make it possible to use zlib as a
 + * runtime extension (HAVE_ZLIB not defined at compile time).
  #if HAVE_ZLIB
 +*/
  	/* Add output compression headers at this late stage in order to make
  	   it possible to switch it off inside the script. */
 =20
 @@ -740,7 +752,9 @@
  			zval_ptr_dtor(&uf_result);
  		}
  	}
 +/*
  #endif
 +*/
 =20
  	/* Success-oriented.  We set headers_sent to 1 here to avoid an infinite =
 loop
  	 * in case of an error situation.
 
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 --- SAPI.c.orig	Wed Apr 13 17:06:11 2005
 +++ SAPI.c	Wed Apr 13 17:43:58 2005
 @@ -565,11 +565,18 @@
  					ptr++;
  					len--;
  				}
 +/*
 + * Will not hurt in any way if we do not have zlib installed.
 + * This code is allowed to make it possible to use zlib as a
 + * runtime extension (HAVE_ZLIB not defined at compile time).
  #if HAVE_ZLIB
 +*/
  				if(!strncmp(ptr, "image/", sizeof("image/")-1)) {
  					zend_alter_ini_entry("zlib.output_compression", sizeof("zlib.output_c=
 ompression"), "0", sizeof("0") - 1, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
  				}
 +/*
  #endif
 +*/
  				mimetype =3D estrdup(ptr);
  				newlen =3D sapi_apply_default_charset(&mimetype, len TSRMLS_CC);
  				if (!SG(sapi_headers).mimetype){
 @@ -712,7 +719,12 @@
  		return SUCCESS;
  	}
 =20
 +/*
 + * Output zlib related headers even if zlib is not enabled at compile time.
 + * This code is allowed to make it possible to use zlib as a
 + * runtime extension (HAVE_ZLIB not defined at compile time).
  #if HAVE_ZLIB
 +*/
  	/* Add output compression headers at this late stage in order to make
  	   it possible to switch it off inside the script. */
 =20
 @@ -740,7 +752,9 @@
  			zval_ptr_dtor(&uf_result);
  		}
  	}
 +/*
  #endif
 +*/
 =20
  	/* Success-oriented.  We set headers_sent to 1 here to avoid an infinite =
 loop
  	 * in case of an error situation.
 
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