From: Michael Wallner <mike@php.net>
Date: Fri, 21 Oct 2016 05:39:40 +0000 (+0200)
Subject: configure: better support for extvars
X-Git-Url: https://git.m6w6.name/?p=m6w6%2Fext-psi;a=commitdiff_plain;h=2f08002ac0b6de75b0ecb6fe57cbbc70cb2424ae

configure: better support for extvars
---

diff --git a/m4/posix/netinet_in.m4 b/m4/posix/netinet_in.m4
index e226d05..88f054b 100644
--- a/m4/posix/netinet_in.m4
+++ b/m4/posix/netinet_in.m4
@@ -62,5 +62,5 @@ PSI_CHECK_NETINET_IN() {
 	PSI_MACRO(int IN6_IS_ADDR_MC_ORGLOCAL, [(const struct in6_addr *a)])
 	PSI_MACRO(int IN6_IS_ADDR_MC_GLOBAL, [(const struct in6_addr *a)])
 
-	PSI_EXTVAR(struct in6_addr in6addr_loopback)
+	PSI_MACRO(struct in6_addr in6addr_loopback)
 }
diff --git a/m4/posix/signal.m4 b/m4/posix/signal.m4
index fe0c545..6895acf 100644
--- a/m4/posix/signal.m4
+++ b/m4/posix/signal.m4
@@ -173,7 +173,7 @@ PSI_CHECK_SIGNAL() {
 	PSI_DECL(int sigignore, [(int sig)])
 	PSI_DECL(int siginterrupt, [(int sig, int flag)])
 	PSI_DECL(int sigismember, [(const sigset_t *set, int signum)])
-	PSI_DECL(sighandler_t signal, [(int sig, sighandler_t *func)])
+	PSI_DECL(sighandler_t signal, [(int sig, sighandler_t func)])
 	PSI_DECL(int sigpause, [(int sig)])
 	PSI_DECL(int sigpending, [(sigset_t *set)])
 	PSI_DECL(int sigprocmask, [(int how, const sigset_t *set, sigset_t *oset)])
diff --git a/m4/posix/time.m4 b/m4/posix/time.m4
index 250e3c9..63906e5 100644
--- a/m4/posix/time.m4
+++ b/m4/posix/time.m4
@@ -57,6 +57,7 @@ PSI_CHECK_TIME() {
 	PSI_DECL(int timer_settime, [(timer_t t, int flags, struct itimerspec *value, struct itimerspec *ovalue)], [], [-lrt])
 	PSI_DECL(void tzset, [()])
 
+	PSI_MACRO(int getdate_err)
 	PSI_EXTVAR(int daylight)
 	PSI_EXTVAR(long timezone)
 	PSI_EXTVAR(char **tzname)
diff --git a/m4/psi/psi_decl.m4 b/m4/psi/psi_decl.m4
index c5b90de..ae44e73 100644
--- a/m4/psi/psi_decl.m4
+++ b/m4/psi/psi_decl.m4
@@ -61,6 +61,7 @@ AC_DEFUN(PSI_DECL_ARGS, [
 	m4_case([$2],
 		[(void)], [],
 		[()], [],
+		[], [],
 		[m4_map_args_sep([PSI_DECL_ARG(m4_normalize(], [))], [], m4_bregexp([$2], [(\(.*\))], [\1]))])
 ])
 
diff --git a/m4/psi/psi_macro.m4 b/m4/psi/psi_macro.m4
index b3ee988..d26a888 100644
--- a/m4/psi/psi_macro.m4
+++ b/m4/psi/psi_macro.m4
@@ -9,25 +9,28 @@ EOF
 dnl PSI_MACRO(macro, decl args, action-if-true)
 AC_DEFUN(PSI_MACRO, [
 	AC_CHECK_DECL(PSI_VAR_NAME($1)$2, [
-		$3
 		macro_type="PSI_VAR_TYPE($1)"
 		macro_name="PSI_VAR_NAME($1)"
 		m4_case([$2],
 			[(void)], [
 				macro_decl="(void)"
 				macro_call="()"
+				macro_action=call
 			],
 			[()], [
 				macro_decl="()"
 				macro_call="()"
+				macro_action=call
 			],
 			[], [
 				macro_decl="()"
 				macro_call=""
+				macro_action=get
 			],
 			[
 				macro_decl="$2"
 				macro_call="(m4_map_args_sep([PSI_VAR_NAME(], [)], [, ], m4_bregexp($2, [(\(.*\))], [\1])))"
+				macro_action=call
 			]
 		)
 		ifelse(PSI_VAR_TYPE($1), [void], [
@@ -35,10 +38,25 @@ AC_DEFUN(PSI_MACRO, [
 		], [
 			macro_body="return $macro_name$macro_call;"
 		])
-		psi_add_macro "$macro_type _psi_redir_$macro_name$macro_decl { $macro_body }"
-		PSI_REDIR($macro_name, _psi_redir_$macro_name)
+		$3
+		psi_add_macro "$macro_type _psi_${macro_action}_$macro_name$macro_decl { $macro_body }"
+		PSI_REDIR($macro_name, _psi_${macro_action}_$macro_name)
 	], [], PSI_INCLUDES)
 ])
 
 dnl PSI_EXTVAR(type var)
-AC_DEFUN(PSI_EXTVAR, [PSI_MACRO($1)])
+AC_DEFUN(PSI_EXTVAR, [
+	dnl just a getter
+	PSI_MACRO($1, [], [
+		PSI_DECL_ARGS($1)
+		psi_add_decl "$psi_decl_args"
+		dnl explicit getter & setter
+		PSI_REDIR([${macro_name}_get], [_psi_get_$macro_name])
+		PSI_DECL_ARGS($1_get)
+		psi_add_decl "$psi_decl_args"
+		psi_add_macro "void _psi_set_${macro_name}($macro_type value) { memcpy(&$macro_name, &value, sizeof(value)); }"
+		PSI_REDIR([${macro_name}_set], [_psi_set_${macro_name}])
+		PSI_DECL_ARGS([void PSI_VAR_NAME($1)_set], [(PSI_VAR_TYPE($1) _v)])
+		psi_add_decl "$psi_decl_args"
+	])
+])