Clean headers checks

Some headers were checked multiple times in the main configure.ac file
and in the bundled extensions or SAPIs themselves. Also many of these
checks are then used accross other extensions or SAPIs so a central
configure.ac makes most sense for these checks.

7 files changed, 6 insertions, 23 deletions

diff --git a/Zend/Zend.m4 b/Zend/Zend.m4
index d859487498..5b97e6c361 100644
--- a/Zend/Zend.m4
+++ b/Zend/Zend.m4
@@ -126,16 +126,7 @@ dnl
 AC_DEFUN([LIBZEND_BASIC_CHECKS],[
 AC_REQUIRE([AC_PROG_CC])
 
-AC_CHECK_HEADERS(
-inttypes.h \
-stdint.h \
-malloc.h \
-unistd.h \
-sys/types.h \
-sys/time.h \
-unix.h \
-cpuid.h \
-dlfcn.h)
+AC_CHECK_HEADERS([cpuid.h])
 
 dnl
 dnl LIBZEND_DLSYM_CHECK
diff --git a/configure.ac b/configure.ac
index 450de11c16..0680a0acfa 100644
--- a/configure.ac
+++ b/configure.ac
@@ -436,12 +436,14 @@ ieeefp.h \
 langinfo.h \
 limits.h \
 locale.h \
+malloc.h \
 monetary.h \
 netdb.h \
 poll.h \
 pwd.h \
 resolv.h \
 signal.h \
+strings.h \
 syslog.h \
 sysexits.h \
 sys/ioctl.h \
@@ -457,6 +459,7 @@ sys/statfs.h \
 sys/statvfs.h \
 sys/vfs.h \
 sys/sysexits.h \
+sys/uio.h \
 sys/wait.h \
 sys/loadavg.h \
 termios.h \
diff --git a/ext/date/config0.m4 b/ext/date/config0.m4
index ebd86acc2e..38389503e1 100644
--- a/ext/date/config0.m4
+++ b/ext/date/config0.m4
@@ -1,8 +1,5 @@
 dnl Check for headers needed by timelib
-AC_CHECK_HEADERS([ \
-strings.h \
-io.h
-])
+AC_CHECK_HEADERS([io.h])
 
 dnl Check for strtoll, atoll
 AC_CHECK_FUNCS(strtoll atoll)
diff --git a/ext/opcache/config.m4 b/ext/opcache/config.m4
index 4d8f3a5888..dc32c5b94f 100644
--- a/ext/opcache/config.m4
+++ b/ext/opcache/config.m4
@@ -21,8 +21,6 @@ if test "$PHP_OPCACHE" != "no"; then
     AC_DEFINE(HAVE_MPROTECT, 1, [Define if you have mprotect() function])
   ])
 
-  AC_CHECK_HEADERS([unistd.h sys/uio.h])
-
   AC_MSG_CHECKING(for sysvipc shared memory support)
   AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <sys/types.h>
diff --git a/ext/sockets/config.m4 b/ext/sockets/config.m4
index 405b68d288..71cebdb3e2 100644
--- a/ext/sockets/config.m4
+++ b/ext/sockets/config.m4
@@ -17,7 +17,7 @@ if test "$PHP_SOCKETS" != "no"; then
   fi
 
   AC_CHECK_FUNCS([hstrerror socketpair if_nametoindex if_indextoname])
-  AC_CHECK_HEADERS([netdb.h netinet/tcp.h sys/un.h sys/sockio.h])
+  AC_CHECK_HEADERS([netinet/tcp.h sys/un.h sys/sockio.h])
   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #include <sys/types.h>
 #include <sys/socket.h>
diff --git a/ext/standard/config.m4 b/ext/standard/config.m4
index 891fca2ffa..b0ec90900b 100644
--- a/ext/standard/config.m4
+++ b/ext/standard/config.m4
@@ -448,7 +448,6 @@ AC_CHECK_HEADERS([net/if.h],[], [],
   #endif
   #include <net/if.h>
 ])
-AC_CHECK_HEADERS([netdb.h])
 AC_MSG_CHECKING([for usable getifaddrs])
 AC_LINK_IFELSE([AC_LANG_PROGRAM([[
   #include <sys/types.h>
diff --git a/sapi/fpm/config.m4 b/sapi/fpm/config.m4
index 67ffc10522..24d42d2bf0 100644
--- a/sapi/fpm/config.m4
+++ b/sapi/fpm/config.m4
@@ -11,11 +11,6 @@ AC_DEFUN([AC_FPM_STDLIBS],
 
   AC_SEARCH_LIBS(socket, socket)
   AC_SEARCH_LIBS(inet_addr, nsl)
-
-  AC_CHECK_HEADERS([fcntl.h unistd.h sys/uio.h])
-  AC_CHECK_HEADERS([sys/select.h sys/socket.h sys/time.h])
-  AC_CHECK_HEADERS([arpa/inet.h netinet/in.h])
-  AC_CHECK_HEADERS([sysexits.h])
 ])
 
 AC_DEFUN([AC_FPM_PRCTL],