php7-pecl-http: fix build for big endian (fixes #3691)

While at, improve pre-seeded dependency detection.

Signed-off-by: Michael Heimpold <mhei@heimpold.de>

lang/php7-pecl-http/Makefile

@@ -32,8 +32,8 @@ include $(INCLUDE_DIR)/nls.mk
 include ../php7/pecl.mk
 
 CONFIGURE_VARS+= \
-	PHP_PROPRO=yes \
-	PHP_RAPHF=yes \
+	PECL_cv_HAVE_EXT_propro=yes \
+	PECL_cv_HAVE_EXT_raphf=yes \
 	PECL_cv_HAVE_LIBCURL_ARES=no \
 	PECL_cv_HAVE_LIBCURL_OpenSSL=$(if $(CONFIG_LIBCURL_OPENSSL),yes,no) \
 	PECL_cv_HAVE_LIBCURL_GnuTLS=$(if $(CONFIG_LIBCURL_GNUTLS),yes,no) \

lang/php7-pecl-http/patches/100_php_http_etag_bigendian_check.patch

@@ -0,0 +1,11 @@
+--- a/src/php_http_etag.c	2016-12-12 10:04:21.000000000 +0100
++++ b/src/php_http_etag.c	2016-12-23 21:10:59.523222367 +0100
+@@ -60,7 +60,7 @@
+ 		unsigned char buf[4];
+ 
+ 		*((uint *) e->ctx) = ~*((uint *) e->ctx);
+-#if WORDS_BIGENDIAN
++#ifdef WORDS_BIGENDIAN
+ 		etag = php_http_etag_digest((unsigned char *) e->ctx, 4);
+ #else
+ 		buf[0] = ((unsigned char *) e->ctx)[3];

lang/php7/pecl.mk

@@ -16,6 +16,9 @@ define Build/Prepare
 	( cd $(PKG_BUILD_DIR); $(STAGING_DIR)/usr/bin/phpize7 )
 endef
 
+CONFIGURE_VARS+= \
+        ac_cv_c_bigendian_php=$(if $(CONFIG_BIG_ENDIAN),yes,no)
+
 CONFIGURE_ARGS+= \
 	--with-php-config=$(STAGING_DIR)/usr/bin/php7-config