Autotools: Add missing sigil in AC_CASE and fix Autoconf syntax (#14967)

Author: petk

build/php.m4

@@ -1103,9 +1103,9 @@ int main(void) {
   [php_cv_time_r_type=POSIX])],
   [php_cv_time_r_type=POSIX])
 ])
-AS_CASE([php_cv_time_r_type],
+AS_CASE([$php_cv_time_r_type],
   [hpux], [AC_DEFINE([PHP_HPUX_TIME_R], [1],
-    [Define to 1 if you have HP-UX 10.x.-style reentrant time functions.])]
+    [Define to 1 if you have HP-UX 10.x.-style reentrant time functions.])],
   [irix], [AC_DEFINE([PHP_IRIX_TIME_R], [1],
     [Define to 1 you have IRIX-style reentrant time functions.])])
 ])

ext/opcache/config.m4

@@ -228,7 +228,7 @@ int main(void) {
 ]])],
 [php_cv_shm_mmap_anon=yes],
 [php_cv_shm_mmap_anon=no],
-[AS_CASE([host_alias],
+[AS_CASE([$host_alias],
   [*linux*|*midipix], [php_cv_shm_mmap_anon=yes],
   [php_cv_shm_mmap_anon=no])])])
 AS_VAR_IF([php_cv_shm_mmap_anon], [yes],