php-4.0.3pl1 compile error

hi! i got the following error while compiling php. do you know whats missing or whats wrong? thanks in advance michael kummer ps: i'm running a slackware7.1 box on a p2 300 --CUT-- make[3]: Entering directory `/tmp/www-src/php-4.0.3pl1/ext/gd' gcc -I. -I/tmp/www-src/php-4.0.3pl1/ext/gd -I/tmp/www-src/php-4.0.3pl1 -I/tmp/www-src/php-4.0.3pl1/main -I/tmp/www-src/apache_1.3.14/src/include -I/tmp/www-src/apache_1.3.14/src/os/unix -I/tmp/www-src/php-4.0.3pl1/Zend -I/tmp/www-src/php-4.0.3pl1 -I/usr/local/include/freetype -I/usr/local/include -I/tmp/www-src/php-4.0.3pl1/ext/mysql/libmysql -I/tmp/www-src/php-4.0.3pl1/ext/xml/expat/xmltok -I/tmp/www-src/php-4.0.3pl1/ext/xml/expat/xmlparse -I/tmp/www-src/php-4.0.3pl1/TSRM -DXML_BYTE_ORDER=12 -g -O2 -c gdttf.c && touch gdttf.lo gdttf.c:79: parse error before `TT_Engine' gdttf.c:79: warning: no semicolon at end of struct or union gdttf.c:80: warning: data definition has no type or storage class gdttf.c:81: parse error before `properties' gdttf.c:81: warning: data definition has no type or storage class gdttf.c:82: parse error before `instance' gdttf.c:82: warning: data definition has no type or storage class gdttf.c:83: parse error before `char_map_Unicode' gdttf.c:83: warning: data definition has no type or storage class gdttf.c:84: parse error before `char_map_Big5' gdttf.c:84: warning: data definition has no type or storage class gdttf.c:85: parse error before `char_map_Roman' gdttf.c:85: warning: data definition has no type or storage class gdttf.c:89: parse error before `matrix' gdttf.c:89: warning: data definition has no type or storage class gdttf.c:90: parse error before `imetrics' gdttf.c:90: warning: data definition has no type or storage class gdttf.c:92: parse error before `}' gdttf.c:92: warning: data definition has no type or storage class gdttf.c:98: parse error before `TT_Engine' gdttf.c:98: warning: no semicolon at end of struct or union gdttf.c:99: warning: data definition has no type or storage class gdttf.c:104: parse error before `TT_Glyph' gdttf.c:104: warning: no semicolon at end of struct or union gdttf.c:105: warning: data definition has no type or storage class gdttf.c:106: parse error before `outline' gdttf.c:106: warning: data definition has no type or storage class gdttf.c:107: parse error before `oldx' gdttf.c:107: warning: data definition has no type or storage class gdttf.c:108: parse error before `Bit' gdttf.c:108: warning: data definition has no type or storage class gdttf.c:112: parse error before `}' gdttf.c:112: warning: data definition has no type or storage class gdttf.c:118: parse error before `font_t' gdttf.c:118: warning: no semicolon at end of struct or union gdttf.c:119: warning: data definition has no type or storage class gdttf.c:130: parse error before `glyph_t' gdttf.c:130: warning: no semicolon at end of struct or union gdttf.c:131: warning: data definition has no type or storage class gdttf.c:159: parse error before `font_t' gdttf.c: In function `fontTest': gdttf.c:324: `a' undeclared (first use in this function) gdttf.c:324: (Each undeclared identifier is reported only once gdttf.c:324: for each function it appears in.) --CUT-- ------------------------------------------ 11:00pm up 108 days, 6:17, 1 user, load average: 0.00, 0.00, 0.00